Do you have EVERYTHING connected properly?
Is the GPU seated properly?
(longshot) do you have the right drivers for all your components?
Are you sure it is even your GPU cutting the power?

MatchedPlaayer wrote Ok so i Bought a GTX 660 today, Requires 450 (Watt PSU) Im running a 600 watt PSU. I play games with the new GPU and my PC shuts down and i need to wait 5-10 minutes. I put in my old GPU requires (500 Watts!) And Runs fine is there any way to allow more power to my new GPU?????

That's not how power requirements work for cards, but there could be a number of things going wrong. What model is your PSU?

In case your graphics drivers are the problem, you may want to completely remove and re-install the drivers for your card. Use DDU: [ Register or Signin to view external links. ]

Make sure you have updated to the newest BIOS revision for both the card and the motherboard.

The GTX 660 only requires 150W of power to function. If your PSU was not large enough, the system most likely wouldn't even power on. What was your old GPU? As stated above, re-install latest drivers, that is possibly your issue.

Sanctorum wrote The GTX 660 only requires 150W of power to function. If your PSU was not large enough, the system most likely wouldn't even power on. What was your old GPU? As stated above, re-install latest drivers, that is possibly your issue.

That's more often than not how it works. Usually you can power on your PC, but it struggles to keep chugging along. Sometimes it will turn off 10-15 mins in, sometimes hours if you're just sitting on your desktop. I doubt it's the shear wattage amount that's the issue, it's probably a low quality PSU with dismal amperage.

-Mashiro wrote

Sanctorum wrote The GTX 660 only requires 150W of power to function. If your PSU was not large enough, the system most likely wouldn't even power on. What was your old GPU? As stated above, re-install latest drivers, that is possibly your issue.

That's more often than not how it works. Usually you can power on your PC, but it struggles to keep chugging along. Sometimes it will turn off 10-15 mins in, sometimes hours if you're just sitting on your desktop. I doubt it's the shear wattage amount that's the issue, it's probably a low quality PSU with dismal amperage.

I have never even heard of someone who hasn't had a large enough PSU to power all of their components so I wasn't even sure! That's a good point though, could be a low quality PSU..

Sanctorum wrote

-Mashiro wrote

Sanctorum wrote The GTX 660 only requires 150W of power to function. If your PSU was not large enough, the system most likely wouldn't even power on. What was your old GPU? As stated above, re-install latest drivers, that is possibly your issue.

That's more often than not how it works. Usually you can power on your PC, but it struggles to keep chugging along. Sometimes it will turn off 10-15 mins in, sometimes hours if you're just sitting on your desktop. I doubt it's the shear wattage amount that's the issue, it's probably a low quality PSU with dismal amperage.

I have never even heard of someone who hasn't had a large enough PSU to power all of their components so I wasn't even sure! That's a good point though, could be a low quality PSU..

im suspecting it might be a temprature overheat measure...try checking your cpu or gpu to see if its hot...or even the thermal paste on your cpu...my thermal paste came off and it got to like 80 degrees and shut off..or it might be a voltage problem...i highly doubt the psu would be the problem if its 600w and lastly check your drivers if they arent corrupted etc

atombomb30000 wrote

Sanctorum wrote

-Mashiro wrote

Sanctorum wrote The GTX 660 only requires 150W of power to function. If your PSU was not large enough, the system most likely wouldn't even power on. What was your old GPU? As stated above, re-install latest drivers, that is possibly your issue.

That's more often than not how it works. Usually you can power on your PC, but it struggles to keep chugging along. Sometimes it will turn off 10-15 mins in, sometimes hours if you're just sitting on your desktop. I doubt it's the shear wattage amount that's the issue, it's probably a low quality PSU with dismal amperage.

I have never even heard of someone who hasn't had a large enough PSU to power all of their components so I wasn't even sure! That's a good point though, could be a low quality PSU..

im suspecting it might be a temprature overheat measure...try checking your cpu or gpu to see if its hot...or even the thermal paste on your cpu...my thermal paste came off and it got to like 80 degrees and shut off..or it might be a voltage problem...i highly doubt the psu would be the problem if its 600w and lastly check your drivers if they arent corrupted etc

I agree with your overheating point, but I don't think you understand how PSUs work. Just because you have enough wattage, doesn't mean you have enough amps to keep you going. A good quality 430w PSU will easily out-perform a 600w off-brand PSU.

-Mashiro wrote

atombomb30000 wrote

Sanctorum wrote

-Mashiro wrote

Sanctorum wrote The GTX 660 only requires 150W of power to function. If your PSU was not large enough, the system most likely wouldn't even power on. What was your old GPU? As stated above, re-install latest drivers, that is possibly your issue.

That's more often than not how it works. Usually you can power on your PC, but it struggles to keep chugging along. Sometimes it will turn off 10-15 mins in, sometimes hours if you're just sitting on your desktop. I doubt it's the shear wattage amount that's the issue, it's probably a low quality PSU with dismal amperage.

I have never even heard of someone who hasn't had a large enough PSU to power all of their components so I wasn't even sure! That's a good point though, could be a low quality PSU..

im suspecting it might be a temprature overheat measure...try checking your cpu or gpu to see if its hot...or even the thermal paste on your cpu...my thermal paste came off and it got to like 80 degrees and shut off..or it might be a voltage problem...i highly doubt the psu would be the problem if its 600w and lastly check your drivers if they arent corrupted etc

I agree with your overheating point, but I don't think you understand how PSUs work. Just because you have enough wattage, doesn't mean you have enough amps to keep you going. A good quality 430w PSU will easily out-perform a 600w off-brand PSU.

yeah true..eg a corsair will outdo a stock psu for instance etc