Overclockers

thenamejohn · 08-26-09, 02:13 AM

I am new to overclocking and want supervision before i start going any farther then this. Is the proper thing to do here to start my own Q8200 thread or do I just add to this?
Im going to post pictures of my bios and screenshots very soon along with a detailed description of my situation. I just want to know if I am going to start in the right place.

Antec900
Vista 32
MSI MS-7380 nforce 750i sli spp Rev A2 Bios v02.61
intel Q8200 @2.333 stock w/Thermaltake Big Typhoon air cool
GTX 275 oc
Buffalo Firestix PC2=6400 2gbx2 800Mhz @ 4-4-4-12-2t
please get me started

turbohans · 08-26-09, 02:47 AM

Quote:

Originally Posted by thenamejohn

I am new to overclocking and want supervision before i start going any farther then this. Is the proper thing to do here to start my own Q8200 thread or do I just add to this?
Im going to post pictures of my bios and screenshots very soon along with a detailed description of my situation. I just want to know if I am going to start in the right place.

Antec900
Vista 32
MSI MS-7380 nforce 750i sli spp Rev A2 Bios v02.61
intel Q8200 @2.333 stock w/Thermaltake Big Typhoon air cool
GTX 275 oc
Buffalo Firestix PC2=6400 2gbx2 800Mhz @ 4-4-4-12-2t
please get me started

you can make yourown thread if you feel the need too.

I notice in your sig you have a Nvidia chipset and 800mhz ram,, you might wanna look around and see what the highest FSB anyone has gotten stable with that motherboard first because the Q8200's low multi will need all you can get. also for a good OC you will need to be able to get your ram to around ~900mhz.

kick · 08-30-09, 04:18 AM

Hey Samsave

Yeh 490 fsb I can get down to 1.325 cpu V in bios (1.31 under load) with pl 9 on memory and 2.08v memory in bios
500fsb needs 1.41 cpu (1.39) under load 2.22v mem(2.19 under load) to hold pl 9 for 9Gb/s read bandwidth (10 Gb/s copy and write).

pll V and Cpu term V at those speeds left on auto goes to 1.85V and 1.7v!!
set manually pll 1.57-1.59V and vTt at just around cpu v in bios seems to be ok.
cpu and mch ref around 70%.
mch 1.38 -1.42.

ArcturusVi · 08-30-09, 11:18 AM

I currently have my Q8200 at 3.15GHz at 1.2 BIOS Voltage. Prime95 stable after 24 hours. G.Skill Memory set to manual, factory settings at 1088mhz. Locked my PCI-e bus at 100mhz for stability, and will keep it that way until I get a high enough OC that I am comfortable with.

My board is a Gigabyte EP45-UD3P. I am keeping the N/S Bridges at auto for voltage. Temps seem to be fine, as far as I can tell.

Seems like a pretty easy chip to overclock once you set a couple things to manual and leave them there. When my memory timing and multiplier were set to Auto, I would get some rough restart loops, and forget about Prime95.

kick · 08-30-09, 08:10 PM

So what do we have here.
Q8200 will clock to 3.5ghz from 2.3 which is a 50% speed increase.
This is just about the same as all other 45nm 775 quad coreswith intel chipsets.

Assuming you have a decent mbrd/decent air cooling and mem that will do 1000mhz
490 fsb/3.43 ghz will need 1.3v-1.35v for stability .
500fsb/3.5ghz will need 1.35-1.4v for stability
510fsb/3.57ghz will need 1.4-1.45 for stability and things can get v hot.

above 510/2040 fsb it doesnt seem worth trying to blow up yer cpu or corrupt data.
Below 490/1960 fsb u can probably get away with much lower voltages.
I think ill settle on 490 fsb for the rest of the cpu's lifetime(mines almost a year old now).
cpu speed>fsb speed>memory speed.

ArcturusVi · 08-31-09, 09:17 AM

Got it to 3.5GHZ stable. That's all the faster I need or feel comfortable trying.

kdawgmaster · 09-11-09, 08:20 PM

Quote:

Originally Posted by SamSaveMax

My P35 board didn't play well with Quad. So I changed to a P45 board which I think is a mate for it.....and a newer Cooler Master Hyper Z600R to handle the heat.

I got up to 500FSB but passed only 2 hrs with P95 small FFTs
@ 486FSB = OK P95 small FFTs 6 hrs but had problem FREEZING with OCCT Mix

Finally, I settled at 3.36GHz @ 480FSB with a nice low Vcore with decent temperature.

Very tight fit.

which is ur mobo and what PSU and ram do u have because i cant get my Q8200 past 3.32 without problems

Evilsizer · 09-11-09, 08:31 PM

Quote:

Originally Posted by kdawgmaster

which is ur mobo and what PSU and ram do u have because i cant get my Q8200 past 3.32 without problems

well the ram/mobo is in the first screen shot you quoted... the psu looks like some cheap one from dynex.

checkeredhat09 · 09-29-09, 02:16 PM

So I just noticed one thing when going over this thread...I saw that most of those people that were getting pretty high clock speeds had Q8200's with revision M1. That would mean that they are spec number SLB5M. I have a Q8200 that has "A" Stepping with revision R0. I have not been successful at OCing this hardly at all. Just wondering if that might have anything to do with it.

BTW my specs

Intel Core 2 Quad Q8200 @ 2.33 GHz Spec#SLG9S
ASUS P5N7A-VM Motherboard
G.SKILL 2x2GB DDR2 800
APEVIA brand 500w PSU (included with case)

turbohans · 09-29-09, 04:58 PM

Quote:

Originally Posted by checkeredhat09

So I just noticed one thing when going over this thread...I saw that most of those people that were getting pretty high clock speeds had Q8200's with revision M1. That would mean that they are spec number SLB5M. I have a Q8200 that has "A" Stepping with revision R0. I have not been successful at OCing this hardly at all. Just wondering if that might have anything to do with it.

BTW my specs

Intel Core 2 Quad Q8200 @ 2.33 GHz Spec#SLG9S
ASUS P5N7A-VM Motherboard
G.SKILL 2x2GB DDR2 800
APEVIA brand 500w PSU (included with case)

Well for a good OC on your cpu you will also needa good oc on your ram seeing as 800mhz will only get you to 2.8ghz@ stock.

checkeredhat09 · 09-29-09, 05:30 PM

Quote:

Originally Posted by turbohans

Well for a good OC on your cpu you will also needa good oc on your ram seeing as 800mhz will only get you to 2.8ghz@ stock.

Well I'd just be glad to get to 2.8 at all. So to my dismay, somehow I can't even boot the system at 400 GHz FSB. In order for RAM to even be a limiting factor I would at least have to be able to run stable at 400 GHz. So RAM is a secondary concern atm. I just cant understand how all these people push 3.5 GHz and mine only survived 6 hours on Prime95 Blend at 375 MHz FSB!!!!!!

checkeredhat09 · 09-30-09, 02:26 PM

Well...now I don't think its my cpu's fault. I read somewhere online that the ASUS P5N7A-VM gets unstable at around 1500 Rated FSB. And due to my Q8200 low multi that translates to around 375 MHz....which explains Prime95 not working.

I saw online that with a C2D they got to like 3.3 GHz because that chip had a multi of 9. But with that multi, the FSB only had to be at 375 MHz.

So...maybe my mobo is choking my processor....thoughts?

SamSaveMax · 10-02-09, 04:30 PM

Quote:

Originally Posted by checkeredhat09

Well...now I don't think its my cpu's fault. I read somewhere online that the ASUS P5N7A-VM gets unstable at around 1500 Rated FSB. And due to my Q8200 low multi that translates to around 375 MHz....which explains Prime95 not working.

I saw online that with a C2D they got to like 3.3 GHz because that chip had a multi of 9. But with that multi, the FSB only had to be at 375 MHz.

So...maybe my mobo is choking my processor....thoughts?

Pushing above 3GHz required PC8500 rams.
PC6400 rams like yours can be overclocked too. (max out around 850~890MHz)
Try 555-15 timing manually and bump its voltage to 2.1v
With that mobo....you may need to bump a lot of voltage to the NB due to its build-in graphic.

Galganaban · 10-02-09, 07:50 PM

Hey guys im dabbling in this cpu.. could you guys talke a look at my thread and give me your input?
http://www.ocforums.com/showthread.php?t=620256

( i guess i shoulda posted in here 1st.. sorry!)

ArcturusVi · 10-14-09, 12:58 AM

Some concerns or thoughts.

Have this, Q8200 M1 revision.

Currently have it at 500x7 with a memory ratio of 2. Board is a Gigabyte EP45-UD3P F9 revision

I have G.Skill 1066 running at 1000 at stock memory voltages.

CPU voltage I had to get to 1.3 for stability. Anything lower, and it'd eventually crash windows, let alone prime or F@H. Temps are in the mid 40's at idle, barely getting to 50 under load of F@H. Prime gets it to near 60. HSF is a Xiggy Dark Knight, lapped, with AS5.

Speedfan shows
Temp1-40C
Temp 2-31C

I am to imagine these are the chipsets, with their voltages and bandwidth set to auto. PCI-e is locked at 100mhz as well.

Any of this sound right? Or any areas of concern or further tweaking? It's been solid for a few months, doing near 24/7 F@H or gaming. I guess this means it's stable, but do temps and voltages seem right? Thanks.

It does pass prime95 under any test for 12-16 hours. I only turn it off to do other things.

kick · 10-20-09, 02:21 PM

its about right temps too.
Depends if you are running cpu term on auto or not you will be running v high voltages thru if you are.
temp 1 is the system temp,probably (unless you reassigned a temp value) its a little high and its not taken direct from the nb or sb,I had to install my own temp sensor for nb.
temp 2 is probably the cpu temp at idle,not cores temp.Speedfan should show those also
Personally ive gone down to 490 fsb because the voltages needed are much lower and I can still get 9gb bandwidth.
Check out tweaktown since you have a gigabyte board.

ArcturusVi · 10-20-09, 09:57 PM

Quote:

Originally Posted by kick

its about right temps too.
Depends if you are running cpu term on auto or not you will be running v high voltages thru if you are.
temp 1 is the system temp,probably (unless you reassigned a temp value) its a little high and its not taken direct from the nb or sb,I had to install my own temp sensor for nb.
temp 2 is probably the cpu temp at idle,not cores temp.Speedfan should show those also
Personally ive gone down to 490 fsb because the voltages needed are much lower and I can still get 9gb bandwidth.
Check out tweaktown since you have a gigabyte board.

Thanks for the tips. I got it at 3.4GHz with auto everything besides divider and memory voltage. Passed Prime for all night. Seems a lot more stable now.

kick · 10-21-09, 03:59 AM

I used to run my UD3 with a lot of auto settings for 5-6 months.
At 490 fsb PLL V will go to 1.7V+! and cpu term to 1.6V
At 500 fsb PLL V will go to 1.8 and cpu term to like 1.65v

personally i think these are too high for long term usage and it took a lot of adjusting in bios to get PLL down to 1.57-1.6 and cpu term down to 1.34-1.37.
Save the bios setting you find stable (F11 and F12 keys for saving and loading bios).
Then load and save optimised defaults and work from there.

I loaded in the cpu ref and mch ref voltages shown with optimised defaults loaded..once you do that they will automatically increase at the right percentage as you increase the other settings.
Up to about 470 fsb people seem to be able to run voltages very close to stock after that the V's needed go up rapidly.
510 for me needs over 2.3v for memory alone:2.08 needed for 490.
Then again my 800mhz mem wont go much above 1000mhz easily.
cpu below 490 1.25V approx.490 1.34v approx.500 1.39 v approx etc.

A lot is down to board/memory/quadcpu fsb limits with our low multiplier.

Steven-1979 · 10-21-09, 12:45 PM

1.8/1.65 auto settings are definitely a lot more than needed. Hardware Canuks did test these settings extensively, including a 100 hour stress test, and never had any problems. But I do suggest lowering everything to as low as possible while still maintaining stability just for the long term health of the cpu and producing less heat. I found vtt increases to cause even more jumps in heat than vcore.

tanderson · 11-16-09, 04:02 PM

hey guys, ive been reading this thread a little bit. and am having problems. with nothing changed but the FSB and ram multiplyer in bios i can only get it to 2.55Mhz.
im not quite sure how to change the Vcore or anything else about the Ram or any of that. can someone point me in the correct direction to get the Q8200 up to 2.8 or so? and could you be a little specific, im not sure what "vcore" is labeled as in my bios i see CPU Voltage control and Normal CPU V Core. can ya'll also explain a little of what it does and what i should change it to?

Thanks guys!

Evilsizer · 11-16-09, 04:40 PM

for starters for us to help you, please list the specs of your computer...

tanderson · 11-16-09, 07:08 PM

i have a gigabyte p35-ds3l mobo rev. 2.0
6gb ram ddr2 at 667mhz is what bios shows.
1x2 gb is qimonda?
2x1 gb is samsung and other 2gb stick idk what maker it is.
i have the Q8200 processor overclocked to 2.55ghz with all settings stock except turning off C1E and EIST and have the multiplyer set at 2x
and cpu V core is stock at 1.23750V

need more info?
Thanks for the response!

Bobnova · 11-16-09, 07:12 PM

I think the ram is probably your issue, it's already running at it's maximum speed.
You could try loosening the timings (if they're 6-6-6-18 now, set 'em to 7-7-7-21, the 4th number should be the first three put together generally), that may buy you a bit more OC.
If your bios has an option for 533 ram speed use that, but i doubt it will.

tanderson · 11-16-09, 07:14 PM

okay how do i change it to 7-7-7-21. i havent seen anything in my bios that shows the numbers like that. and what if it is set differently?
thanks for the input. and should i get new RAM will that make things easier?
Ive read people can get to like 2.8ghz with just upping the FSB.. i cant even get to 2.59 by upping the bus anymore than it is. but it runs stable now.
Thanks!

Evilsizer · 11-16-09, 08:32 PM

well the reason why it wont oc higher right now is because of the ram. simply the ram is rated for DDR2-667, since that is dual data rate. take 667/2=333.33, so be all accounts your highest rated per that stock ram is a 333.33 fsb. how ever you have it running higher at 2.55/2.59ghz.

what your looking for is this
http://www.xbitlabs.com/images/mainb...35-ds3l/b4.jpg
to get there from the main bios
http://www.xbitlabs.com/images/mainb...35-ds3l/b1.jpg
go to the MIT section, there you should find ram section for timings.
**source link**
http://www.xbitlabs.com/articles/mai...l_6.html#sect0

one thing you could do for us before hitting up the bios... is going to www.cpuid.com and getting cpuz and post a screen-shot of the memory tab. You might get lucky though and have ram that can run higher with a bit of work. Overclocking in some cases can require a bit more elbow grease then what some let on.

tanderson · 11-16-09, 11:48 PM

the ones of the memory itself is just a little extra in case you could grab more info. the first one with the 3JeDec 1-3 has 4 gbs total running the same and the last one is a 2gb stick not sure of maker and it runs differently than the other 3 sticks.

thanks for the help i will now read the links you gave me

tanderson · 11-17-09, 12:46 AM

i found the "(SPD)" but it wouldnt let me change the ram timings it would only allow me to change the multiplier which is set at 2

tanderson · 11-17-09, 03:07 PM

so i finally got it up to 2.60Ghz!
i changed ram timings from 5-5-5-15 to 6-6-6-18 almost loaded but didnt. then went fron that to 6-7-7-20 and now it is up and running, also changed the DDR2 OverVoltage control to +.2 and upped the Vcore to 1.24375v.
running a test right now and will let it run for a couple hours and let ya'll know the results.

Evilsizer · 11-17-09, 04:49 PM

have you run memtest86 on the ram at those settings? the ram timings are really loose for what most consider low speed on the ram. is negating any performance increase from the increased clock speed. i would say consider getting new kit of ram to use, something that is either, DDR2-800 cas4 or DDR2-1066 cas5.

tanderson · 11-17-09, 05:30 PM

it ended up not being stable. so i changed it back to what was stable. so you're saying i should go down to like 4-4-4-12? that didnt even boot up at all so i kept raising it and it finally boot at 6-7-7-20 and was stable for a little while but finally froze.

08-26-09, 02:13 AM	#151
thenamejohn New Member Join Date: Aug 2009	help I am new to overclocking and want supervision before i start going any farther then this. Is the proper thing to do here to start my own Q8200 thread or do I just add to this? Im going to post pictures of my bios and screenshots very soon along with a detailed description of my situation. I just want to know if I am going to start in the right place. Antec900 Vista 32 MSI MS-7380 nforce 750i sli spp Rev A2 Bios v02.61 intel Q8200 @2.333 stock w/Thermaltake Big Typhoon air cool GTX 275 oc Buffalo Firestix PC2=6400 2gbx2 800Mhz @ 4-4-4-12-2t please get me started Last edited by thenamejohn; 08-26-09 at 02:31 AM.

08-30-09, 04:18 AM	#153
kick Registered Join Date: Feb 2009	Hey Samsave Yeh 490 fsb I can get down to 1.325 cpu V in bios (1.31 under load) with pl 9 on memory and 2.08v memory in bios 500fsb needs 1.41 cpu (1.39) under load 2.22v mem(2.19 under load) to hold pl 9 for 9Gb/s read bandwidth (10 Gb/s copy and write). pll V and Cpu term V at those speeds left on auto goes to 1.85V and 1.7v!! set manually pll 1.57-1.59V and vTt at just around cpu v in bios seems to be ok. cpu and mch ref around 70%. mch 1.38 -1.42. __________________ Gigabyte EP-45 UD3 bios F8 Q8400 4.0Ghz cpu (Q8200 3.5Ghz) 1000mhz 4gb GSkill Black PI 6400(800mhz) Coolermaster V8 vlts in bios:cpu 1.39375(1.360 cpuz),memory2.2,mch 1.42 memory "turbo" pl 9 temps:(14hr prime 500fsb)core0 69,sys 38,nb 36* Jeantech 500w psu 9600 gt 512ddr3(10% o/c) 1TB WD HDD Vista 64 premium sp2

08-30-09, 08:10 PM	#155
kick Registered Join Date: Feb 2009	So what do we have here. Q8200 will clock to 3.5ghz from 2.3 which is a 50% speed increase. This is just about the same as all other 45nm 775 quad coreswith intel chipsets. Assuming you have a decent mbrd/decent air cooling and mem that will do 1000mhz 490 fsb/3.43 ghz will need 1.3v-1.35v for stability . 500fsb/3.5ghz will need 1.35-1.4v for stability 510fsb/3.57ghz will need 1.4-1.45 for stability and things can get v hot. above 510/2040 fsb it doesnt seem worth trying to blow up yer cpu or corrupt data. Below 490/1960 fsb u can probably get away with much lower voltages. I think ill settle on 490 fsb for the rest of the cpu's lifetime(mines almost a year old now). cpu speed>fsb speed>memory speed. Attached Images __________________ Gigabyte EP-45 UD3 bios F8 Q8400 4.0Ghz cpu (Q8200 3.5Ghz) 1000mhz 4gb GSkill Black PI 6400(800mhz) Coolermaster V8 vlts in bios:cpu 1.39375(1.360 cpuz),memory2.2,mch 1.42 memory "turbo" pl 9 temps:(14hr prime 500fsb)core0 69,sys 38,nb 36* Jeantech 500w psu 9600 gt 512ddr3(10% o/c) 1TB WD HDD Vista 64 premium sp2 Last edited by kick; 08-30-09 at 08:19 PM.

10-14-09, 12:58 AM	#165
ArcturusVi Member Join Date: Apr 2009 Location: Yawn, Ohio	Some concerns or thoughts. Have this, Q8200 M1 revision. Currently have it at 500x7 with a memory ratio of 2. Board is a Gigabyte EP45-UD3P F9 revision I have G.Skill 1066 running at 1000 at stock memory voltages. CPU voltage I had to get to 1.3 for stability. Anything lower, and it'd eventually crash windows, let alone prime or F@H. Temps are in the mid 40's at idle, barely getting to 50 under load of F@H. Prime gets it to near 60. HSF is a Xiggy Dark Knight, lapped, with AS5. Speedfan shows Temp1-40C Temp 2-31C I am to imagine these are the chipsets, with their voltages and bandwidth set to auto. PCI-e is locked at 100mhz as well. Any of this sound right? Or any areas of concern or further tweaking? It's been solid for a few months, doing near 24/7 F@H or gaming. I guess this means it's stable, but do temps and voltages seem right? Thanks. It does pass prime95 under any test for 12-16 hours. I only turn it off to do other things. Last edited by ArcturusVi; 10-14-09 at 01:04 AM.

10-20-09, 02:21 PM	#166
kick Registered Join Date: Feb 2009	its about right temps too. Depends if you are running cpu term on auto or not you will be running v high voltages thru if you are. temp 1 is the system temp,probably (unless you reassigned a temp value) its a little high and its not taken direct from the nb or sb,I had to install my own temp sensor for nb. temp 2 is probably the cpu temp at idle,not cores temp.Speedfan should show those also Personally ive gone down to 490 fsb because the voltages needed are much lower and I can still get 9gb bandwidth. Check out tweaktown since you have a gigabyte board. __________________ Gigabyte EP-45 UD3 bios F8 Q8400 4.0Ghz cpu (Q8200 3.5Ghz) 1000mhz 4gb GSkill Black PI 6400(800mhz) Coolermaster V8 vlts in bios:cpu 1.39375(1.360 cpuz),memory2.2,mch 1.42 memory "turbo" pl 9 temps:(14hr prime 500fsb)core0 69,sys 38,nb 36* Jeantech 500w psu 9600 gt 512ddr3(10% o/c) 1TB WD HDD Vista 64 premium sp2

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08-30-09, 11:18 AM	#154
ArcturusVi Member Join Date: Apr 2009 Location: Yawn, Ohio	I currently have my Q8200 at 3.15GHz at 1.2 BIOS Voltage. Prime95 stable after 24 hours. G.Skill Memory set to manual, factory settings at 1088mhz. Locked my PCI-e bus at 100mhz for stability, and will keep it that way until I get a high enough OC that I am comfortable with. My board is a Gigabyte EP45-UD3P. I am keeping the N/S Bridges at auto for voltage. Temps seem to be fine, as far as I can tell. Seems like a pretty easy chip to overclock once you set a couple things to manual and leave them there. When my memory timing and multiplier were set to Auto, I would get some rough restart loops, and forget about Prime95.

08-31-09, 09:17 AM	#156
ArcturusVi Member Join Date: Apr 2009 Location: Yawn, Ohio	Got it to 3.5GHZ stable. That's all the faster I need or feel comfortable trying.

09-29-09, 02:16 PM	#159
checkeredhat09 Member Join Date: Sep 2009 Location: Seattle, WA	So I just noticed one thing when going over this thread...I saw that most of those people that were getting pretty high clock speeds had Q8200's with revision M1. That would mean that they are spec number SLB5M. I have a Q8200 that has "A" Stepping with revision R0. I have not been successful at OCing this hardly at all. Just wondering if that might have anything to do with it. BTW my specs Intel Core 2 Quad Q8200 @ 2.33 GHz Spec#SLG9S ASUS P5N7A-VM Motherboard G.SKILL 2x2GB DDR2 800 APEVIA brand 500w PSU (included with case)

09-30-09, 02:26 PM	#162
checkeredhat09 Member Join Date: Sep 2009 Location: Seattle, WA	Well...now I don't think its my cpu's fault. I read somewhere online that the ASUS P5N7A-VM gets unstable at around 1500 Rated FSB. And due to my Q8200 low multi that translates to around 375 MHz....which explains Prime95 not working. I saw online that with a C2D they got to like 3.3 GHz because that chip had a multi of 9. But with that multi, the FSB only had to be at 375 MHz. So...maybe my mobo is choking my processor....thoughts?

10-02-09, 07:50 PM	#164
Galganaban Member Join Date: Oct 2009	Hey guys im dabbling in this cpu.. could you guys talke a look at my thread and give me your input? http://www.ocforums.com/showthread.php?t=620256 ( i guess i shoulda posted in here 1st.. sorry!)

10-21-09, 03:59 AM	#168
kick Registered Join Date: Feb 2009	I used to run my UD3 with a lot of auto settings for 5-6 months. At 490 fsb PLL V will go to 1.7V+! and cpu term to 1.6V At 500 fsb PLL V will go to 1.8 and cpu term to like 1.65v personally i think these are too high for long term usage and it took a lot of adjusting in bios to get PLL down to 1.57-1.6 and cpu term down to 1.34-1.37. Save the bios setting you find stable (F11 and F12 keys for saving and loading bios). Then load and save optimised defaults and work from there. I loaded in the cpu ref and mch ref voltages shown with optimised defaults loaded..once you do that they will automatically increase at the right percentage as you increase the other settings. Up to about 470 fsb people seem to be able to run voltages very close to stock after that the V's needed go up rapidly. 510 for me needs over 2.3v for memory alone:2.08 needed for 490. Then again my 800mhz mem wont go much above 1000mhz easily. cpu below 490 1.25V approx.490 1.34v approx.500 1.39 v approx etc. A lot is down to board/memory/quadcpu fsb limits with our low multiplier. __________________ Gigabyte EP-45 UD3 bios F8 Q8400 4.0Ghz cpu (Q8200 3.5Ghz) 1000mhz 4gb GSkill Black PI 6400(800mhz) Coolermaster V8 vlts in bios:cpu 1.39375(1.360 cpuz),memory2.2,mch 1.42 memory "turbo" pl 9 temps:(14hr prime 500fsb)core0 69,sys 38,nb 36* Jeantech 500w psu 9600 gt 512ddr3(10% o/c) 1TB WD HDD Vista 64 premium sp2

10-21-09, 12:45 PM	#169
Steven-1979 Member Join Date: Nov 2008	1.8/1.65 auto settings are definitely a lot more than needed. Hardware Canuks did test these settings extensively, including a 100 hour stress test, and never had any problems. But I do suggest lowering everything to as low as possible while still maintaining stability just for the long term health of the cpu and producing less heat. I found vtt increases to cause even more jumps in heat than vcore. __________________ Currently upgrading to new system CPU: Intel E8500 (@ 4.5 ghz) Motherboard: GIGABYTE GA-EP45-UD3P RAM: 4gb Corsair Dominator DDR2 1066 w/ RAM cooling fan (@ 1138 mhz) Cooling: ~~CPU/GPU/NB = Water Cooled~~ Graphics: EVGA GeForce GTX 260 core 216 (@ 771/1566/1298) PSU: Corsair tx 650w

11-16-09, 04:02 PM	#170
tanderson Registered Join Date: Nov 2009	hey guys, ive been reading this thread a little bit. and am having problems. with nothing changed but the FSB and ram multiplyer in bios i can only get it to 2.55Mhz. im not quite sure how to change the Vcore or anything else about the Ram or any of that. can someone point me in the correct direction to get the Q8200 up to 2.8 or so? and could you be a little specific, im not sure what "vcore" is labeled as in my bios i see CPU Voltage control and Normal CPU V Core. can ya'll also explain a little of what it does and what i should change it to? Thanks guys!

11-16-09, 04:40 PM	#171
Evilsizer Senior Member Join Date: Jun 2002 Location: Austin,Texas	for starters for us to help you, please list the specs of your computer... __________________ i7 920@3.6ghz \| Asus R2G \| OCZ3P1333LV3GK \| C650TX \| OCZ AGILITY 60gig(x2 in raid-0) E7200@3.8ghz \| Abit IP350-Pro \| 4x1gig G.skill DDR2-800 HK \| "I Love To Camp!" "Comensing Shock Therapy!" HeatWare

11-16-09, 07:08 PM	#172
tanderson Registered Join Date: Nov 2009	i have a gigabyte p35-ds3l mobo rev. 2.0 6gb ram ddr2 at 667mhz is what bios shows. 1x2 gb is qimonda? 2x1 gb is samsung and other 2gb stick idk what maker it is. i have the Q8200 processor overclocked to 2.55ghz with all settings stock except turning off C1E and EIST and have the multiplyer set at 2x and cpu V core is stock at 1.23750V need more info? Thanks for the response!

11-16-09, 07:12 PM	#173
Bobnova Join Date: May 2009 Location: Humboldt	I think the ram is probably your issue, it's already running at it's maximum speed. You could try loosening the timings (if they're 6-6-6-18 now, set 'em to 7-7-7-21, the 4th number should be the first three put together generally), that may buy you a bit more OC. If your bios has an option for 533 ram speed use that, but i doubt it will. __________________ Join the OCF Benching team! We're taking over the world! Max CPUz's: E1200(1600)@3328..\|....\|. E6300(1860)@3725..\|\|.\|\|\|\| E4500(2200)@4528..\|\|...\|. Q6600(2400)@4572..\|\|.\|\|\|. E5200(2500)@4807..\|\|.\|\|\|\| E6600(2400)@4932..\|\|\|.\|\|. i3 540(3066)@5798..\|\|....\| My heatware.

11-16-09, 07:14 PM	#174
tanderson Registered Join Date: Nov 2009	okay how do i change it to 7-7-7-21. i havent seen anything in my bios that shows the numbers like that. and what if it is set differently? thanks for the input. and should i get new RAM will that make things easier? Ive read people can get to like 2.8ghz with just upping the FSB.. i cant even get to 2.59 by upping the bus anymore than it is. but it runs stable now. Thanks!

11-16-09, 08:32 PM	#175
Evilsizer Senior Member Join Date: Jun 2002 Location: Austin,Texas	well the reason why it wont oc higher right now is because of the ram. simply the ram is rated for DDR2-667, since that is dual data rate. take 667/2=333.33, so be all accounts your highest rated per that stock ram is a 333.33 fsb. how ever you have it running higher at 2.55/2.59ghz. what your looking for is this http://www.xbitlabs.com/images/mainb...35-ds3l/b4.jpg to get there from the main bios http://www.xbitlabs.com/images/mainb...35-ds3l/b1.jpg go to the MIT section, there you should find ram section for timings. source link http://www.xbitlabs.com/articles/mai...l_6.html#sect0 one thing you could do for us before hitting up the bios... is going to www.cpuid.com and getting cpuz and post a screen-shot of the memory tab. You might get lucky though and have ram that can run higher with a bit of work. Overclocking in some cases can require a bit more elbow grease then what some let on. __________________ i7 920@3.6ghz \| Asus R2G \| OCZ3P1333LV3GK \| C650TX \| OCZ AGILITY 60gig(x2 in raid-0) E7200@3.8ghz \| Abit IP350-Pro \| 4x1gig G.skill DDR2-800 HK \| "I Love To Camp!" "Comensing Shock Therapy!" HeatWare

11-16-09, 11:48 PM	#176
tanderson Registered Join Date: Nov 2009	the ones of the memory itself is just a little extra in case you could grab more info. the first one with the 3JeDec 1-3 has 4 gbs total running the same and the last one is a 2gb stick not sure of maker and it runs differently than the other 3 sticks. thanks for the help i will now read the links you gave me Attached Images

11-17-09, 12:46 AM	#177
tanderson Registered Join Date: Nov 2009	i found the "(SPD)" but it wouldnt let me change the ram timings it would only allow me to change the multiplier which is set at 2

11-17-09, 03:07 PM	#178
tanderson Registered Join Date: Nov 2009	so i finally got it up to 2.60Ghz! i changed ram timings from 5-5-5-15 to 6-6-6-18 almost loaded but didnt. then went fron that to 6-7-7-20 and now it is up and running, also changed the DDR2 OverVoltage control to +.2 and upped the Vcore to 1.24375v. running a test right now and will let it run for a couple hours and let ya'll know the results.

11-17-09, 04:49 PM	#179
Evilsizer Senior Member Join Date: Jun 2002 Location: Austin,Texas	have you run memtest86 on the ram at those settings? the ram timings are really loose for what most consider low speed on the ram. is negating any performance increase from the increased clock speed. i would say consider getting new kit of ram to use, something that is either, DDR2-800 cas4 or DDR2-1066 cas5. __________________ i7 920@3.6ghz \| Asus R2G \| OCZ3P1333LV3GK \| C650TX \| OCZ AGILITY 60gig(x2 in raid-0) E7200@3.8ghz \| Abit IP350-Pro \| 4x1gig G.skill DDR2-800 HK \| "I Love To Camp!" "Comensing Shock Therapy!" HeatWare

11-17-09, 05:30 PM	#180
tanderson Registered Join Date: Nov 2009	it ended up not being stable. so i changed it back to what was stable. so you're saying i should go down to like 4-4-4-12? that didnt even boot up at all so i kept raising it and it finally boot at 6-7-7-20 and was stable for a little while but finally froze.