Starting about 2 weeks ago, I noticed that games were starting to chug. These are games that I used to be able to play completely maxed out, but now the framerates drop and from time to time, the games will totally freeze or skip. Even Counter-Strike:Source has experienced problems.
here's what I think you'll need to know;
Intel Core 2 Quad Q6600 @ 2.40 GHz
Abit IP35 Pro Mobo
Rosewell ATX12V 600w PSU
ATI Radeon HD 4870
I ran ATITools for 90 minutes and got 191 artifacts.
The GPU Temperature is at 68ºC after sitting idle for about a half hour.
The HD4870 should be about 45C at idle, only reaching 68C under stress. The BIOS readings show that your PSU's +12V output is too low. I would check the graphics fan and replace the Rosewill 650W with a better quality PSU.
According to GPU-Z, my fan is running between 30% and 35%, and GPU temp is fluctuating between 67 and 68ºC. It's been sitting idle for a few hours. The fan looks to be running fine, but there's not a whole lot of air coming out of the back vent. I just cleaned out my system yesterday, so it's not clogged with dust at all.
You can increase the graphics card fan speed in the Catalyst Control Center. Click 'Graphics' in the top left and select ATI Overdrive, then enable manual fan control, set the slider to about 60-80% and click Apply. Higher fan speeds are louder, so find a compromise between noise and temperature.
See how you get on with the ATITools test and games with the fan speed increased. If everything's ok, you could drop the speed down to 60% to make it quieter. Mine is 40% and 50C with just Firefox, Notepad and a media player running. Fullscreen games at high settings take it up to about 60% and 65C.
The +12V should be very close to 12.0V in BIOS, and can fluctuate while playing fullscreen games, so 11.65V is not good for an idle computer. Check with a system monitor like Everest or SensorsView to see what it's like under stress while playing. The rest of your voltages look ok, it's just the +12V that is low. This can contribute to high GPU and CPU temperatures and can cause lag in games.
Have you got two case fans, one at the front pulling in cool air and one at the back blowing out warm air? If not, then installing two 120mm fans will help bring down the graphics temperature.
750W would be better if you manage it, as it provides more +12V amps and gives more headroom for future upgrades, but the 650W would still work. Just don't go for one of the really cheap brands. Corsairs are excellent value for money, very reliable, and have a high efficiency rating and a 5 year warranty.
EDIT: I've just noticed that your CPU is overclocked. Set this back to default and check the voltages again in BIOS and during gameplay.
I tried running Counter Strike:Source which ran fine, but when I tried to play Left 4 Dead 2 the first time, both the audio and the video skipped. I'm going to run ATITools again later today for another 90 minutes to see what I get.
I ran SensorsView while playing Left 4 Dead 2 a second time. When I first started up SensorsView, it said my +12V was at 13.10V and maxed out at 13.40V while playing. The highest my GPU temperature got while I was playing, was 52ºC. Graphics on the second time were better, but still chugged at spots, especially during fast movements or when a lot was going on (which never happened before, no matter what game.)
I have several case fans actually. Two 80mm in the front (intake), one 80mm on the top (exhaust), and one 120mm on the back (exhaust). Just after getting done testing out games with SensorsView going, my case temperature was at 32ºC.
Also, immediately after I originally posted this, I restarted my computer and went into BIOS. In there still said that +12V was at 11.65V... I forgot to mention when I originally posted the voltages, the voltage level for +12V (8-Pin Connector) went between 11.58V and 11.65V. The voltage for +12V (24-Pin Connector) didn't move from 11.65V.
Software system monitors are not as accurate as the BIOS readings, but even taking the margin of error into account, a jump up to 13.4V shows that there's definitely a problem. The safe range is 11.4-12.6V, but with a good quality PSU you'll see it will be closer to about 11.9-12.1V, even under stress.
What are your CPU and hard drive temperatures? These are also powered by the +12V rail, so if they are high and you're getting 13.40V, then the PSU would be the main suspect, especially as Rosewill is not a good quality make (70% efficiency and approx 26A/+12V). The Corsair 650W is over 80% efficient and provides 52A/+12V.
If you've been running your HD4870 on the Rosewill 600W for a while, the poor quality might have damaged the graphics card. You can test the card in another computer with a suitable PSU to confirm this, but I would still recommend upgrading to a Corsair.
My CPU cores range from 28ºC to 33ºC. The highest any of them got to was 35ºC. My HDD is at 34ºC and has stayed right at that level the whole time.
As of right now, +12V is sitting at 13.20V as far as SensorsView says.
I've been running my graphics card with the rosewill psu for over a year... I really hope it hasn't done damage because I wouldn't be able to afford to replace it. I do plan on upgrading to a Corsair as soon as I can.
I decided to run a ATITools test as soon as I started up my PC today and got zero artifacts.
The thing is... according to SensorsView, my +12V is running at 13.70V.
I'll hopefully be ordering the power supply sometime this week. In the meantime, is there any way to test and see if my graphics card is damaged besides putting it into a different computer? None of my friends have a computer that would be able to use my graphics card.
The only way to properly test a graphics card for damage is to use a suitable PSU. If you don't have access to another computer, you could take the card to a PC repair store and get them to check it out, or wait for your new PSU to arrive.
the vram has probably been damaged due to your other psu. Low quality power supplies tend to damage other components when they start to fail. Rosewills are renowned for it just linke winpower, huntkey and HEC are.
Unfortunately none of my friends have computers that would be able to use my graphics card. I'm going to look for a computer repair store, or something of that nature, so I can bring my card in and ask them to run it. Not sure how well that'll go over or if I'll have to pay, but that'll probably be several days from now. I'm surprised there's no sort of diagnostic software for graphics card so you can find out what's wrong.
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