[|-Goku-|]

Heres My setup
Intel Core 2 Quad Q6600
BFG NVidia 680i SLI Motherboard
BFG NVidia BFG 8800 GTS OC 640MB
2GB Corsair Dominator 1066mhz
CoolerMaster 500 Watt PSU
Bios Update P31(Latest)

Heres My Question:
I just got a new Q6600 G0 Stepping CPU. And when I try to overclock I can barely get it to boot into Windows Vista @ 2.6ghz. I have a good setup, and I don't know why I can't push this chip any further. Did I just get a dud?


|-Goku-|

[BobcatDan]

I dunno for sure, but that PSU is a bit on the weak side.
Dan

[|-Goku-|]

Originally Posted by BobcatDan

I dunno for sure, but that PSU is a bit on the weak side.
Dan

Something I forgot to mention is that I had an E6600 and I did the pin mod to make it run "Stock" at 1333FSB. And also I was just able to over clock the quad core with 2 cores Disabled and run it at 2.7ghz and boot fine into windows

[jdf_warrior]

I have been having somewhat of the same problem. I'm not the most knowledgable person in the world at OC'ing but my roommate knows a good bit and he seems to think mine is chipset/mobo limited.

We have very similar hardware. So this may be your issue too. I have a 680i board, 4gb of ram, same processor, bigger psu, same video card, etc. I got mine to run at 2.65 and thats all i can push it to and it be stable. Anything above that.. I can usually get into windows, as soon as i start a stress test, it dies.

my e6600 on the same board and setup i had running at 3.5-3.6 easily.

If you figure out what it is, let me know

[Evilsizer]

up the CPUVTT in the bios, quads need it along with cpu volts to oc. NV680i's are good for about 400-450ish for quads on the newer revs. i dont know how BFG does the rev thing but EVGA added it to the end of the model. so if your EVGA board has A1 or T1 then it is one of the newer ones. the only things left is the voltages, dont forget you also need to up the NB votlage as well.

[|-Goku-|]

Originally Posted by Evilsizer

up the CPUVTT in the bios, quads need it along with cpu volts to oc. NV680i's are good for about 400-450ish for quads on the newer revs. i dont know how BFG does the rev thing but EVGA added it to the end of the model. so if your EVGA board has A1 or T1 then it is one of the newer ones. the only things left is the voltages, dont forget you also need to up the NB votlage as well.

Whats CPUVTT?

[jdf_warrior]

Can you recommend settings as far as NB voltages and such?

"so if your EVGA board has A1 or T1 then it is one of the newer ones." - Where is that? How would I identify what it is?

Also what about considerations for the NB/SB temps when I up the voltages? With the 2 8800's and my Ultra120, i dont have hardly any room to add aftermarket NB/SB coolers.

[Evilsizer]

cpu vtt has to do with the fsb termation voltage to the cpu.

the A1/T1 is on the model of the board... ie you bought a NF68-xx-A1/T1, look at the box of the motherboard with the PN/sn sticker.

[|-Goku-|]

Originally Posted by Evilsizer

cpu vtt has to do with the fsb termation voltage to the cpu.

the A1/T1 is on the model of the board... ie you bought a NF68-xx-A1/T1, look at the box of the motherboard with the PN/sn sticker.

What about a BFG Board, I read people getting good Overclocking results with the board I have, I know its the same Chipset and all. But I'm starting to think its my PSU, also what should I change my CPU VTT to? BTW, Thanks for all the help, this is a much better Forum then Hardforum

[|-Goku-|]

OK I searched through the BIOS and didn't see anything called CPU VTT, could it be called anything else?

[Evilsizer]

yea NP
what ever cpuvtt is at now i would generally bump it up 2 notches then mess with the others to get the cpu stable at a higher speed. the BFG boards are the same NV reference design used by evga and if you bought your board withing the past 6months or so its a newer rev. i dont thing BFG would put it in the model number like evga does...

the PSU is my first thought since i dont think its has a well know PCB manufacture in it...

*edit*
gimme a few to look, just got busy at work...

[jdf_warrior]

My board is an AR.. any idea as to what this would mean? CPUVTT setting not there or what? I'm not at home right this sec to be able to look at it..

[BobcatDan]

Originally Posted by |-Goku-|

OK I searched through the BIOS and didn't see anything called CPU VTT, could it be called anything else?

On my board it's called FSB termination voltage. What is the exact model number of your mobo?
Dan

[|-Goku-|]

OK, I found it, Its Just called FSB. I dunno what Revision of the board I have, As I bought it off Ebay. So I don't know when it was made. I really was thinking it was the PSU because I only have a 4 pin connecter for the CPU power when it says I should use an 8 Pin in the manual

[Evilsizer]

Originally Posted by jdf_warrior

My board is an AR.. any idea as to what this would mean? CPUVTT setting not there or what? I'm not at home right this sec to be able to look at it..

AR is the first rev of the board... thats why your not clocking higher on a quad... NV made a tweak to the board which is why EVGA now has A1/t1 in retail... i would call them up and tell them you have a AR board and having issues with ur quad core. That you want the A1 board to fix the issues your having... its more then likly labeled at CPUFSB term voltage or something like that...

4pin vs 9pin isnt going to matter if you have a older rev board that cant clock quads....

[|-Goku-|]

Found out I have the Old revision of my board and I just got an RMA number from BFG. Should I send it in and get a new revision? The only thing I have a question on is the New Bios update from BFG the P31. It said it fixes Overclocking with the G0 steppings and Quad Cores. Is my CPU just crap?

[Evilsizer]

sorry for the delay in getting back to ya...

no your cpu is not crap... its not ocing cause of the board, the new rev's have tweaked layout and increased voltage(that cant be change). that i making the difference on quad core, i say get the new rev board for ocing your quad. you might be down for a while but after you get the new board here comes 400+ fsb!!

[|-Goku-|]

Thanks for all the Help!!!

[jdf_warrior]

Now.. the way your saying just call EVGA and tell them, makes it sound like your telling me that I can call them and tell them I have a problem and they will replace it. Is this the case? I found the setting for the CPUVTT, its labeled at the CPU FSB voltage. You suggested that I also increase the NB voltage. I dont know where the voltage setting is for it unless thats considered as the nForce SPP or nForce MCP voltage setting.

Should I pursue trying to adjust the settings or is it just NOT going to clock any higher with this revision of the board? As I mentioned, I can get a very slight overclock. Its been running 2.65ghz. I realize however thats not much of anything.

If getting a new motherboard is the road I should take, should I just simply upgrade to the newer revision of this board or should I go for something newer/better? I would rather not have to spend much more money. Have put enough into my system lately..

[Evilsizer]

you can call them up and ask for the a replacement the AR/TR have many other problems as well. i have a ar/tr i ran my E6400 in after a certian fsb while gaming he keyboard would just act up.... now i say AR/TR cuase i dunnow which one it would be since mine came straight from(see sig)...

i never had a problem getting a replacement from EVGA with a product that is known to have issues. esp a AR/TR 680i board........