CPU and GPU overclocking issue

[Mitorax]

After many tests I've noticed that I can only go for max cpu overclock or max gpu. I've first overclocked them both and the system just crashes. But when having only one of the components overclocked at the max possible, everything is fine. So any ideas why I cannot overclock them both? My first idea was not having enough power, but I have 650w power supply and I think it should be enough for a gtx 460 and amd phenom triple core cpu

 

[FrankenDesign]

heat, heat, heat, heat and more heat.

 

[sizzling]

Please list full PC spec including make and model of PSU. 600w is meaningless without knowing the quality of the unit

 

[Mitorax]

heat, heat, heat, heat and more heat.

I don't think so. According to nvidia's site the gpu's max temp is 100C and mine mostly sits at around 55-60 under load. Right now I'm with running only with max cpu overclock and it reaches 70C with prime95 but it is stable. I've had it run for 10 hours a couple of times and it didnt crash.

 

[ael00]

power supply isnt just a wattage number. if you tax it to the max it will not be able to supply clean power (steady stream) to both cpu / gpu crashing them. Same for the motherboard phases.

If you provide more information on parts / temperatures and clock times we can help you sort it out.

 

[Mitorax]

Please list full PC spec including make and model of PSU. 600w is meaningless without knowing the quality of the unit

mb: gigabyte ga770t-d3l
cpu: amd phenom ii x2 550 (unclocked to phenom ii x4 b50 but only runing triple core, one of the cores was bad) stock 3.1ghz, oc'd to 3.72 (20%)
psu: nox uranovx 650
gpu: msi gtx 460 hawk

 

[sizzling]

Couldn't find much on that PSU but this backs up the usual situation of these unknown brands http://www.jonnyguru.com/forums/archive/index.php/t-9570.html looks like a low quality unit.

You really shouldn't attempting overclocking on low end PSU's, if it fails it can damage other components. You really want a tier 1 but nothing lower than tier 2 for overclocking http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

 

[FrankenDesign]

It's not the gpu or psu it's the cpu. One of his cores are bad. Eject. Replace. With one that has got good cores all around.

 

[Mitorax]

Couldn't find much on that PSU but this backs up the usual situation of these unknown brands http://www.jonnyguru.com/forums/archive/index.php/t-9570.html looks like a low quality unit.

You really shouldn't attempting overclocking on low end PSU's, if it fails it can damage other components. You really want a tier 1 but nothing lower than tier 2 for overclocking http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

Ok, so for now considering my situtation that I can overclock only cpu or gpu. Which would be better for gaming performance?

 

[sizzling]

It's not the gpu or psu it's the cpu. One of his cores are bad. Eject. Replace. With one that has got good cores all around.

I see nothing to support this theory, the fact he can overclock the CPU if he does not overclock the GPU suggests the CPU is perfectly fine. Something else is the problem, I think PSU is most likely but I cannot rule out heat either

 

[sizzling]

Couldn't find much on that PSU but this backs up the usual situation of these unknown brands http://www.jonnyguru.com/forums/archive/index.php/t-9570.html looks like a low quality unit.

You really shouldn't attempting overclocking on low end PSU's, if it fails it can damage other components. You really want a tier 1 but nothing lower than tier 2 for overclocking http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

Ok, so for now considering my situtation that I can overclock only cpu or gpu. Which would be better for gaming performance?

Neither, if it is your PSU it must be running close to the max it can take without an OC and when you OC both you push it over the top. Running a PSU that close to its max is dangerous, it will significantly increase the chance of failure.

 

[Mitorax]

Couldn't find much on that PSU but this backs up the usual situation of these unknown brands http://www.jonnyguru.com/forums/archive/index.php/t-9570.html looks like a low quality unit.

You really shouldn't attempting overclocking on low end PSU's, if it fails it can damage other components. You really want a tier 1 but nothing lower than tier 2 for overclocking http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

Ok, so for now considering my situtation that I can overclock only cpu or gpu. Which would be better for gaming performance?

Neither, if it is your PSU it must be running close to the max it can take without an OC and when you OC both you push it over the top. Running a PSU that close to its max is dangerous, it will significantly increase the chance of failure.

In that case, could you give me some examples of apropriate budged power supplies that I should look for?

 

[FrankenDesign]

I see nothing to support this theory, the fact he can overclock the CPU if he does not overclock the GPU suggests the CPU is perfectly fine. Something else is the problem, I think PSU is most likely but I cannot rule out heat either

It is the CPU one of the cores is bad so who knows what else could be wrong with it and yes heat the cpu gets warm as well and it can't take as much as the gpu and as the gpu is next to the cpu socket radiant heat could be tipping it over the edge.

And he hasn't said what cooling sol'n he's applied.

 

[Mitorax]

I see nothing to support this theory, the fact he can overclock the CPU if he does not overclock the GPU suggests the CPU is perfectly fine. Something else is the problem, I think PSU is most likely but I cannot rule out heat either

It is the CPU one of the cores is bad so who knows what else could be wrong with it and yes heat the cpu gets warm as well and it can't take as much as the gpu and as the gpu is next to the cpu socket radiant heat could be tipping it over the edge.

And he hasn't said what cooling sol'n he's applied.

I'm not sure if you have understood correctly. My cpu is a dual core but it can be unlocked to a quad. Since after unlocking it to quad one of the cores was bad, I disabled it and now it is a triple core and it works fine. As it is for the heat I've been monitoring the temps and they are fine. It's probably the power supply

 

[FrankenDesign]

It's a single core that can be unlocked to a dual that has 4 logical but 2 physical cores. Your cpu is low binned and only partially working & could be warped or deformed in the nano layer which means that it is only rated by the manufacturer to run at stock speeds. It can only be fine at the level it has passed in the factory.

 

[sizzling]

Couldn't find much on that PSU but this backs up the usual situation of these unknown brands http://www.jonnyguru.com/forums/archive/index.php/t-9570.html looks like a low quality unit.

You really shouldn't attempting overclocking on low end PSU's, if it fails it can damage other components. You really want a tier 1 but nothing lower than tier 2 for overclocking http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

Ok, so for now considering my situtation that I can overclock only cpu or gpu. Which would be better for gaming performance?

Neither, if it is your PSU it must be running close to the max it can take without an OC and when you OC both you push it over the top. Running a PSU that close to its max is dangerous, it will significantly increase the chance of failure.

In that case, could you give me some examples of apropriate budged power supplies that I should look for?

Any tier 1 or 2 on that list I linked that is 500w or greater, depends what is on offer near you