[danny875]

Hi Guys,

Firstly I'm a noob so take it easy on me I've tried to look for the answer for my question but have had no luck.

I have a new system and have OC'd my E8600 to a conservative 3.80Ghz by increasing the FSB from 333 to 380Mhz.
My MB is ASUS P5KPL-AM.
My RAM is 4Gb Corsair DDR2 pc6400(800Mhz)

My question is:
As my FSBRAM is set to 5:6 (5-5-5-18) since I increased my CPU FSB my DRAM has also incrased by that ratio to 456Mhz(from 400), Is this ok or should I set it lower if possible?

I have ran N95 torture test for 3.5 hrs and max temp recorded was 52c/51c
using both fan speed and realtemp so I'm happy with that I think?

Any help on a very basic explanation of FSBRAM ratios and timings would be very helpful, I have read many guides to OCing but I just get lost in the technical aspects. I'm definately trying to understand though!

Many thanks,
Dan.

[hinderpits]

you could probably run that ram at 1:1

[danny875]

OK thanks for your time, but will I damage anything if I leave it at 5:6(456Mhz) after all faster RAM is better RAM right or am I missing something?

[ZL1]

leave it, you wont damage anything, just make sure you are stable
grab occt off the web and run one custom 2hr cpu only and one custom 2hr ram only tests

D

[Rich'[ard]]

well...just a suggestion, but you could try to oc to 4ghz (10x400) and you'll have a nice round 400mhz FSB. then your ram could stay stock. problem solved

but about FSB:RAM ratios, 1:1 is the least problematic, i reckon. then there's 4:5, 5:6 and a few others. but i don't know how high your ram can run.

[ZL1]

Originally Posted by Rich'[ard]

well...just a suggestion, but you could try to oc to 4ghz (10x400) and you'll have a nice round 400mhz FSB. then your ram could stay stock. problem solved

but about FSB:RAM ratios, 1:1 is the least problematic, i reckon. then there's 4:5, 5:6 and a few others. but i don't know how high your ram can run.

very good suggestion, that cpu should def handle it

[danny875]

Cheers guys for your help but I tried to increase FSB to 400 and it wouldnt POST so now I'm back at 380x10, which was fairly stable and cool so I might stick with it for now.(Is 52deg C ok? thats with 1.27V I think)
I couldnt figure out how to change the FSB:RAM ratio co I'm stuck with 5:6, I can change the DRAM freq from auto to 667,800,1066Mhz but I thought auto was safer. Am I being too conservative with my settings? Does anybody have the same MB and could show me where to change these things?
I have read the MB book but it doesnt really explain much.

[ZL1]

Originally Posted by danny875

Cheers guys for your help but I tried to increase FSB to 400 and it wouldnt POST so now I'm back at 380x10, which was fairly stable and cool so I might stick with it for now.(Is 52deg C ok? thats with 1.27V I think)
I couldnt figure out how to change the FSB:RAM ratio co I'm stuck with 5:6, I can change the DRAM freq from auto to 667,800,1066Mhz but I thought auto was safer. Am I being too conservative with my settings? Does anybody have the same MB and could show me where to change these things?
I have read the MB book but it doesnt really explain much.

prolly wants a bit more vcore or the auto setting tried to set the ram even higher, you can play with it later on if something (should try fsb 400, ram set at 667, it will result in 800mhz ram)
load temps ? if so definitely
did you try occt ? recommended, booting windows is one thing, fully stable is different

[danny875]

Just running occt now for auto/1Hr when that is done I'll try 400 with 667RAM and report back
Thanks

[ZL1]

Originally Posted by danny875

Just running occt now for auto/1Hr when that is done I'll try 400 with 667RAM and report back
Thanks

best to run custom 1hr/2hr cpu select or ram select (better at catching ram errors)

[danny875]

Right I completed OCCT with 380Mhz Bus and 456 Ram no probs same as other tests.
When I set 400Mhz and 667RAM (4GHZ) windows starts but I fail SP2004 within 20 seconds and OCCT fails after about 2 minutes with code 4 on custom RAM (12V was at 12.79V! all other values below the coloured lines)and code 1 when set to cpu custom. Also the tray icons dissapeared in windows(XP Home 32bit).
Do you think this could be a voltage or memory problem?
Sorry if this seems a bit messed up but so am I lol!

[ZL1]

Originally Posted by danny875

Right I completed OCCT with 380Mhz Bus and 456 Ram no probs same as other tests.
When I set 400Mhz and 667RAM (4GHZ) windows starts but I fail SP2004 within 20 seconds and OCCT fails after about 2 minutes with code 4 on custom RAM (12V was at 12.79V! all other values below the coloured lines)and code 1 when set to cpu custom. Also the tray icons dissapeared in windows(XP Home 32bit).
Do you think this could be a voltage or memory problem?
Sorry if this seems a bit messed up but so am I lol!

good, now you know your rams pretty good
lets see if its cpu or mobo now, try running 400fsb and change the multiplier to 9

what PSU do you have ?

[danny875]

Thermaltake High Performance 500W dont know any more details on that but apparently I needed it to run the graphics card (4870 512Mb)

I've got it down at 3.8 again as I know this is a stable platform to start from.
DRAM freq is back on auto for now plus I dont know how to change my mult from 10? Maybe it is under another name.
What was the 12.79V on the 12V page of OCCT graph all about?

When I rebooted it told me that my system has recovered from a serious hardware failure? RAM?
All seems to be OK at the moment just OCCTing again to test.

[ZL1]

Originally Posted by danny875

Thermaltake High Performance 500W dont know any more details on that but apparently I needed it to run the graphics card (4870 512Mb)

I've got it down at 3.8 again as I know this is a stable platform to start from.
DRAM freq is back on auto for now plus I dont know how to change my mult from 10? Maybe it is under another name.
What was the 12.79V on the 12V page of OCCT graph all about?

When I rebooted it told me that my system has recovered from a serious hardware failure? RAM?
All seems to be OK at the moment just OCCTing again to test.

well unfortunately the name is not exactly accurate, thermaltake PSUs arent all that good, 12.79V for the 12v rail means the PSU is struggling
we were just discussing something similar http://www.ocforums.com/showthread.php?t=591479

no, windows just telling you it could not boot with the 4ghz overclock, nothing to worry about

multi=multiplier no such option in the overclock menu ?

[danny875]

No its grayed out that part, some sort of power saving is on as this automatically lowers the multiplier to 6 when on idle.
During the SP2004 tests it told me there was a hardware failure and now windows wants me to install drivers for a floppy drive (I didn't even think I had one).
No worries though everything else is fine at 3.8Ghz.
Just a little disapointed that I can not achieve 4Ghz without something messing up, I've heard people going on about 4.5Ghz or higher.
I realise it all depends on hardware configurations etc...
I'm not giving up I just think I might leave it as is for a while?
I mostly use it for Flight sims which are CPU intensive programs and 3.8Ghz isn't too bad really, definately better than my P4 2Ghz laptop that I've been using for years now!

[ZL1]

Originally Posted by danny875

No its grayed out that part, some sort of power saving is on as this automatically lowers the multiplier to 6 when on idle.
During the SP2004 tests it told me there was a hardware failure and now windows wants me to install drivers for a floppy drive (I didn't even think I had one).
No worries though everything else is fine at 3.8Ghz.
Just a little disapointed that I can not achieve 4Ghz without something messing up, I've heard people going on about 4.5Ghz or higher.
I realise it all depends on hardware configurations etc...
I'm not giving up I just think I might leave it as is for a while?
I mostly use it for Flight sims which are CPU intensive programs and 3.8Ghz isn't too bad really, definately better than my P4 2Ghz laptop that I've been using for years now!

like I said cpu should do it, Im thinking its either psu or mobo that are limiting
you can disable that in a previous menu called cpu info or cpu configuartion
hardware failure just means oc failed, dont worry about that, floppy showed up prolly because bios got reset to original settings, you have to go and disable 1.44 floppy drive in bios, its in the very first menu window

lol well Im writing this on a p3-800 lappy, now thats slow man, really slow

[danny875]

OK thanks for your help I'll do some more reading but theres just so much out there!
Yeah my first experience of Fs9 was on a P3 600Mhz OC'd to 800Mhz! lol
still flew pmdg add ons though, just a slide show.....

Cheers

Dan

[Rich'[ard]]

the power saving option is called C1E from my memory. (or maybe it's Speedstep). you shuold disable them both before you oc anyway.

for 4000mhz, can't you just set your RAM to 400mhz? it should be no probs, cos your stock is 400mhz 5-5-5-15. put those settings in and it shuold be ok. it would be easier to diagnose your problem if we knew your hardware (*hint* get a signature!) lol.

[evildrugmonkey]

hi ive got same mobo and the prob is that when you up fsb the ram ratio goes up too. i think your 5:6 ratio is good , i can only get 4:5 or 2:3 . So 400 top fsb at 5:6 ratio is 960 hz . I think the answer is to just get 1066 ram the your well under.

[Badbonji]

Also, display a list of voltages, such as CPU, FSB, NB / SB (MCP SPP) etc, and make sure that the cpu or fsb are not just sat on auto!