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Possibly need a new PSU

W

woodrage

n00b
Joined
Sep 4, 2010
Messages
3
I was playing Starcraft 2 the other day and after about a couple games, 20-30 minutes into the 3rd game my game slowed to a crawl (msi afterburner showed 0.7fps, gpu was holding steady at 65 C the entire time). I had just gotten a new MSI gtx460 cyclone video card and it happened the first night I was trying it out. A day later I was playing another game and it happened again after awhile. I was previously running a 5770 and I did not have this problem. A friend suggested that it might be the PSU.

Here's my current specs, nothing is overclocked except for the 460 which is factory overclocked slightly:

Core i7 860
Zalman CNPS 9900NT cooler
Biostar T5 XE motherboard
4gb DDR3 1600
1x old WD 500gb, 1x green WD 1.5tb for storage
1x DVDRW/CDRW drive
MSI N460gtx Cyclone (4x Anisotropic, 4x AA forced on)
Antec Neo HE 500w which is about 4 years old
CM Storm Scout with 1x LED 140mm, 1x LED 120mm, 1x regular 120mm fan

Is my 500w enough to power all this? Anytime Starcraft is on, the GPU ramps up to near full load at all times (Afterburner shows 98-99% constantly).

Since then I've been looking at beefier PSUs and came across the XFX XXX 650w. Would this be a safer bet for running this stuff?
 
The PSU does not have a direct affect on the performance of a PC. So your PSU is definitely not a cause AT ALL for your performance slow-down. More than likely a software issue or driver issue. So you should be looking in that direction than the PSU.

However you should be looking at a PSU upgrade anyway since that PSU is rather old. It technically is enough for your current setup but it is rather old. Yes the XFX 650W PSU is a good choice.
 
hm is it possible that some of my old ati drivers are causing some sort of problem? I only used the ati uninstaller, so don't know if maybe that cleaned everything out or not. Would I need to do a more thorough driver cleaning?
I've currently got the latest nvidia drivers running.
 
woodrage said:
hm is it possible that some of my old ati drivers are causing some sort of problem? I only used the ati uninstaller, so don't know if maybe that cleaned everything out or not. Would I need to do a more thorough driver cleaning?
I've currently got the latest nvidia drivers running.
Click to expand...

That could be an issue yes.
 
Uninstall all video drivers. Safe mode driver sweeper for both sets of drivers. Reboot then install latest nvidia whql drivers from their website.
 
Danny Bui said:
The PSU does not have a direct affect on the performance of a PC. So your PSU is definitely not a cause AT ALL for your performance slow-down.
Click to expand...

I've had a failing PSU cause very bad video card performance degradation before, so much so that the card would eventually switch over to "low power mode" like when you don't have the auxilliary power connectors attached. Nothing failed, but it got down to very bad framerates and occasional crashes in game. This was on a 6600gt with an old ass Antec trueblue 480.

But yeah, I would guess it's more likely the driver thing. What kind of PSU did you have anyway? Come with your case?
 
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