Cpu + gpu overclock, power problem?
Last response: in Overclocking
Hi everyone,
I'm not experienced a lot in overclocking so I have behavior that I don't understand and thats stopping me from overclocking more.
Start from the beginning i had a 700w ocz power supply. When I overclocked my e8400 cpu to 3.6 and my gtx 260 core clock to 680 I was stable when running gpu bencmark but while gaming my coreclock was randomly getting down and my fps was down until I restarted.
After some search I understood that my gpu drived was crasing when my cpu was under heavy load. So I used prime95 blend test and kombuster at the same time and my driver crashed always until I got my gpu core clock to 640 mhz. That was desapointing, but I was sure that it was a power issues.
So i changed my psu ( that I tough was really enough before these incident) to a high current pro 850W.
Received it, mounted it and with prime 95 blend test at the same time as kombustor I can get my gpu coreclock to 700 mhz.
But if I do a intel burn test paired with kombustor the driver crash.
Am I testing too much? Is that something i'm missing?
E8400 3.6 ghz with 1.2v under bios.
I would like to push it to 4ghz but for stability in 100% cpu + 100% gpu i would have to push my gpu not near as far as now.
Sorry for the long post and the bad english ( not my first langage )
I'm not experienced a lot in overclocking so I have behavior that I don't understand and thats stopping me from overclocking more.
Start from the beginning i had a 700w ocz power supply. When I overclocked my e8400 cpu to 3.6 and my gtx 260 core clock to 680 I was stable when running gpu bencmark but while gaming my coreclock was randomly getting down and my fps was down until I restarted.
After some search I understood that my gpu drived was crasing when my cpu was under heavy load. So I used prime95 blend test and kombuster at the same time and my driver crashed always until I got my gpu core clock to 640 mhz. That was desapointing, but I was sure that it was a power issues.
So i changed my psu ( that I tough was really enough before these incident) to a high current pro 850W.
Received it, mounted it and with prime 95 blend test at the same time as kombustor I can get my gpu coreclock to 700 mhz.
But if I do a intel burn test paired with kombustor the driver crash.
Am I testing too much? Is that something i'm missing?
E8400 3.6 ghz with 1.2v under bios.
I would like to push it to 4ghz but for stability in 100% cpu + 100% gpu i would have to push my gpu not near as far as now.
Sorry for the long post and the bad english ( not my first langage )
More about : cpu gpu overclock power problem
Ok, thank you Z1NONLY,
I made these test because it helped me find the problem I was getting while playing some cpu demanding game.
When I play Borderland 2 my cpu is always near 100%.
Well, I will make sure that each one is individually stable and play games to see.
If I got the same problem again I'll come back and tell it.
I made these test because it helped me find the problem I was getting while playing some cpu demanding game.
When I play Borderland 2 my cpu is always near 100%.
Well, I will make sure that each one is individually stable and play games to see.
If I got the same problem again I'll come back and tell it.
Bumping Vcore if you have the headroom and your temps don't suffer.
Basically, to get stable, you need more voltage or less speed.
The PSU is the foundation on which everything is built. Weak/unstable/out-of-spec power will limit your OC. The faster you go, the smaller the allowable margin of error.
Basically, to get stable, you need more voltage or less speed.
The PSU is the foundation on which everything is built. Weak/unstable/out-of-spec power will limit your OC. The faster you go, the smaller the allowable margin of error.
Related ressources:
- ForumZero ohms at CPU power plug after overclock MSI 790FX
- ForumI can't overclock my CPU anymore since I upgraded my GPU
- ForumLarge enough power supply for this CPU/GPU ?
- ForumHigher End Games crash when overclocking CPU & GPU
- ForumOverclocking both CPU and gpu
- ForumGPU overclock scaling on games
- ForumPower supply, dual gpu , cpu overclock power consumption
- ForumHow to safely overclock CPU+GPU +RAM
- Forumisn't the GPU too powerful for the CPU i'm using?
- ForumBSOD trying to overclock GPU
- ForumPower supply, power outlet, GPU , or all three?
- ForumGames freeze and crash when i overclock either CPU or GPU
- ForumCPU 100% While playing a game after overclocking gpu (Dell Studio 1558
- ForumCPU fan clicking?
- ForumNoctua NH-D14 CPU Cooler compatible with ASROCK z77 Extreme 4 Mobo?
- ForumIntel Core 2 duo E8400 overclock??
- Forum[Solved] Is this good to clean the CPU?
- ForumLooking for a low profile CPU cooler
- ForumI5-3570k 4ghz vs 5ghz Overclock?
- ForumHow to overclock my HD 4770 from XFX
- More resources
Read discussions in other Overclocking categories
!
