Stable at prime95 but unstable in real gaming.???

[fragme]

I have a Gigabyte GA-8IK1100 i875P with 2.4C 800 CPU. 1 stick 3200 Samsung. Radeon 9700 default speed. Zalman 7000CU.

It's stable at 260 FSB in prime. It runs benchmarks UT2003 and Sandra ok.
But when playing games (UT2003) it becomes unstable. The games stutter. Freezes a 1-2 sek but not completely freezes. Its like this all the way down to 240 FSB where it becomes stable in games.

The freezing begins after 1-2 min playing. The CPU is beween 47-50 degrees hot. Not as hot as in prime (52-53).

I think its the chipset but why not unstable in prime. The memory is at 350 FSB. Changing the timings dont matter. Raising the voltage no diff.

 

[rogue1979]

Sounds like a possible memory issue. Leave the fsb at 260 and use the memory divisor to lower the memory speed down. Then see if your gaming is stable.

Maybe it could be a power supply problem. In Prime95 no video juice is needed, but when you game the 9700 will use a bunch.

 

[Skooter]

did you overclock your video card? that's what it sounds like to me...to high core clock on your video card.

 

[Slammy1]

Originally posted by: Skooter
did you overclock your video card? that's what it sounds like to me...to high core clock on your video card.

He has stock voltages (325/310?). I take mine to 370/340 before I begin to see any issues. Yes, I've observed this before also. Now I run the game to check stability, then do the torture testing on the o/c's. My 865 is exactly like that. Actually, you need to lower timings or increase voltage to your memory. With these boards, you're no where near maxing out the CPU it's the memory that's tricky. Rots o ruck.

 

[Ketchup]

If your video card is overclocked, I bet that's it

 

[wicktron]

It's highly possible. I've done 24hrs of Prime once but it crashed during a 30min game of Warcraft3, or a long UT2K3 match. Video card at stock speeds. Even Memtest passed through about 50 passes.

 

[MadTom]

It could be your PSU, that can't deliver enough juice to the proc and Radeon.

Try to play a 2D game and see if those things still will happen.

 

[MadTom]

And, BTW, why are you having just one memory stick in a 875 based mobo???