Help OC x38-DQ6 + Q6600 GO

[Erazor51]

My system was prime stable for 24 hours with the following settings:

Q6600 @ 3.6 Ghz
FSB: 400
Multiplier: 9
Memory Multiplier: 2.00D
DDR OverVoltage: +0.30v
CPU Voltage: 1.48125v
Graphics card: 5870


After I upgraded to AMD 6970 my oc became unstable :S What could have caused this and how can I fix this?


Thanks

 

[dave_the_nerd]

My system was prime stable for 24 hours with the following settings:

Q6600 @ 3.6 Ghz
FSB: 400
Multiplier: 9
Memory Multiplier: 2.00D
DDR OverVoltage: +0.30v
CPU Voltage: 1.48125v
Graphics card: 5870


After I upgraded to AMD 6970 my oc became unstable :S What could have caused this and how can I fix this?


Thanks

Probably the video card drawing too much juice for your PSU to power it stably.

What kinda PSU you got? Get a better one with MOAR WATTS.

Or get a dedicated GPU PSU. Something like this:

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=5681047&CatId=1078

 

[Erazor51]

I got an Enermax 1000w DXX

Is that not enough or too old?

 

[ThatsABigOne]

Probably the video card drawing too much juice for your PSU to power it stably.

What kinda PSU you got? Get a better one with MOAR WATTS.

Or get a dedicated GPU PSU. Something like this:

http://www.tigerdirect.com/applicati...047&CatId=1078

Didn't know such things existed...

 

[Saylick]

I got an Enermax 1000w DXX

Is that not enough or too old?

Wattage is only half the equation. The other half - the more important half I should say - is the amperage on the 12v rails for that PSU. There generally is a label on the side of the PSU that indicates the amount of amps coming off each rail, including any and all of the 12v rails. The 6970 uses about 220W (varies on application) but that works to be about 18A (18 and a third to be exact). Check if each 12v rail has at least 19A. A 1000W PSU should be able to handle an overclocked Q6600 and a 6970 easily, so I suspect the problem is coming from something elsewhere.

EDIT: Alright Erazor, I did the guesswork for you. Assuming this is your PSU, there seems to be 5 12V rails each with an amperage of 17A. That is limiting the power envelope on your GPU. I suggest going into Catalyst and capping off the power consumption of the card so that it doesn't force an overdraw condition. If that is NOT your PSU, then again, I suspect the source of the issue is elsewhere.

 

[Ketchup]

I got an Enermax 1000w DXX

Is that not enough or too old?

As far as specs go, it's enough, but it could be too old. Power supplies are funny that way. How many hard drives do you have?

Also, the AMD could be putting out more heat than your last card. What cooling do you have on the CPU/case?

When overclocked (and especially when overvolted) heat becomes a real issue in a stable CPU.

 

[Erazor51]

The only thing changed is the GPU so i am guessing it could be the temps?

Thermaltake Gandalf case with ZALMAN CNPS 9700 CPU cooler, 120mm intake fan, 250mm side fan, 120mm and 80mm outtake fan.

What is the max temp a q6600 go can handle before it fails?

 

[T_Yamamoto]

Max temp for CPU is 104c

 

[Erazor51]

I played cs:go for over an hour last night and i didn't get any bsod, restarts etc but on prime95 it always fails after 17-18min in.

Any other settings i could change? i haven't touched fsb, mch, pci-e over voltage settings, their all on default.

 

[T_Yamamoto]

Just switch back to stock and run prime.

 

[Erazor51]

Just switch back to stock and run prime.

The system runs completely fine and prime stable with with 380x9 with cpu voltage on 1.40.

 

[tweakboy]

I can tell you for 3.6Ghz operation stable. you need 1.384v

I know cuz I have a pos used p5k and it changes voltages and stuff by itself if I touch the BIOS system wont post,, so I just took it to 399 and it took the voltage to 1.384v

1.48v is for 3800Mhz which I doubt youll get stable. take down that voltage.. Whats your cooling ?

 

[Yuriman]

I can tell you for 3.6Ghz operation stable. you need 1.384v

I know cuz I have a pos used p5k and it changes voltages and stuff by itself if I touch the BIOS system wont post,, so I just took it to 399 and it took the voltage to 1.384v

1.48v is for 3800Mhz which I doubt youll get stable. take down that voltage.. Whats your cooling ?

How could you possibly know that about his voltage?

I have a G0 that needs 1.35v to pass Prime at 3.0ghz, and needs well over 1.5v to get stable at 3600mhz. Not all chips are made equal.

@OP, if bumping your voltage up a little stabilizes your PC, we can safely rule out your power supply or cooling. In that case, it's likely that your chip has just degraded slightly since you got it and now needs more voltage to run at the same speed.

If a voltage bump doesn't help, it's more likely power supply or motherboard.

 

[Ketchup]

Whats your cooling ?

ZALMAN CNPS 9700 CPU cooler, 120mm intake fan, 250mm side fan, 120mm and 80mm outtake fan

It helps to read, tweakboy.

 

[Erazor51]

How could you possibly know that about his voltage?

I have a G0 that needs 1.35v to pass Prime at 3.0ghz, and needs well over 1.5v to get stable at 3600mhz. Not all chips are made equal.

@OP, if bumping your voltage up a little stabilizes your PC, we can safely rule out your power supply or cooling. In that case, it's likely that your chip has just degraded slightly since you got it and now needs more voltage to run at the same speed.

If a voltage bump doesn't help, it's more likely power supply or motherboard.

I actually never tried to bump the voltage above 1.48125v for the cpu. Maybe ill give that a try but i'm a little scared with temps as they reach 79c with 1.48v. Isn't 79c over the safe limit?

I know games wont push the cpu to 79c it will probably be around 70c.

Atm i have the pc on 1.41v @ 380x9 and on Prime test the temps reach 73c with 22c room temp.

 

[Saylick]

I actually never tried to bump the voltage above 1.48125v for the cpu. Maybe ill give that a try but i'm a little scared with temps as they reach 79c with 1.48v. Isn't 79c over the safe limit?

I know games wont push the cpu to 79c it will probably be around 70c.

Atm i have the pc on 1.41v @ 380x9 and on Prime test the temps reach 73c with 22c room temp.

If I recall correctly the "safe limit" is actually around the high 90s/low 100s, but I recommend double checking with Intel's spec. Regardless, I would agree with you in that I personally wouldn't want my chips running in the high 70s and up; doing so just speeds up degradation and shortens lifespan.

 

[DigDog]

I can tell you for 3.6Ghz operation stable. you need 1.384v

I know cuz I have a pos used p5k and it changes voltages and stuff by itself if I touch the BIOS system wont post,, so I just took it to 399 and it took the voltage to 1.384v

1.48v is for 3800Mhz which I doubt youll get stable. take down that voltage.. Whats your cooling ?

^ what this guy said.

srsly 1.48 is insane for @3.6