Specs (new build):
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CPU- i5 3570k w/ Hyper 212 + 120mm fan for pushpull
GPU- asus hd7870
PSU- XFX Core Edition PRO550W
MB- ASRock Z77 Pro4
RAM- GSkill RipjawsX 8g (4x2)
Case- NZXT Phantom full tower
DVD- some asus OEM standard dvdrw
HDD- WD caviar blue 500g
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Ok, here's the problem.
I overclocked the i5 3570k ivy at 4.4ghz @ 1.2v, tested stable for a bit in prime 95.
I tried a bit of OCing on the card but I got artifacts/BSOD so I stepped it down.
Went into some games - Starcraft 2, Dota 2 - and got stuttering / freezes / crashes.
So I stepped the GPU OC all the way back down to factory - still stuttering / crashes in-game.
I tried re-installing drivers, installing old drivers, etc. Nothing worked.
Then I read that if your PSU isn't putting out enough power, you will get stuttering/crashing/etc.
So I reverted my CPU OC back to factory and rebooted... and everything worked perfectly.
Then I tried to get the CPU as high as possible on standard volts / -0.005v offset. Got it to 3.8 / 3.9, don't want to go any further.
So that's where I am right now. If I put more volts into the CPU to bring it to 4.0+, I start getting stuttering in-game.
It isn't the temps, I monitor them and they are perfectly within range of expected temperature.
Also I've noticed that while running Prime95 and Kombustor at the same time to test CPU + GPU load, It only allows the GPU's load to fluctuate around 65% - 70%.
When I turn Prime95 off, GPU load properly goes to 100%.
This leads me to believe that it must be a lack of power, because the individual stress testing of the CPU and GPU's overclocks are perfectly fine. But when tested together in a game, or together in a benchmark, they can't run at full power without stuttering/crashing/sacrificing load on one or the other.
-------------------------------------------------
CPU- i5 3570k w/ Hyper 212 + 120mm fan for pushpull
GPU- asus hd7870
PSU- XFX Core Edition PRO550W
MB- ASRock Z77 Pro4
RAM- GSkill RipjawsX 8g (4x2)
Case- NZXT Phantom full tower
DVD- some asus OEM standard dvdrw
HDD- WD caviar blue 500g
--------------------------------------------------
Ok, here's the problem.
I overclocked the i5 3570k ivy at 4.4ghz @ 1.2v, tested stable for a bit in prime 95.
I tried a bit of OCing on the card but I got artifacts/BSOD so I stepped it down.
Went into some games - Starcraft 2, Dota 2 - and got stuttering / freezes / crashes.
So I stepped the GPU OC all the way back down to factory - still stuttering / crashes in-game.
I tried re-installing drivers, installing old drivers, etc. Nothing worked.
Then I read that if your PSU isn't putting out enough power, you will get stuttering/crashing/etc.
So I reverted my CPU OC back to factory and rebooted... and everything worked perfectly.
Then I tried to get the CPU as high as possible on standard volts / -0.005v offset. Got it to 3.8 / 3.9, don't want to go any further.
So that's where I am right now. If I put more volts into the CPU to bring it to 4.0+, I start getting stuttering in-game.
It isn't the temps, I monitor them and they are perfectly within range of expected temperature.
Also I've noticed that while running Prime95 and Kombustor at the same time to test CPU + GPU load, It only allows the GPU's load to fluctuate around 65% - 70%.
When I turn Prime95 off, GPU load properly goes to 100%.
This leads me to believe that it must be a lack of power, because the individual stress testing of the CPU and GPU's overclocks are perfectly fine. But when tested together in a game, or together in a benchmark, they can't run at full power without stuttering/crashing/sacrificing load on one or the other.