GPU performance drops after replacing new PSU

[Jeremy Ong]

Hello fellow experts. I have been looking for solution for my problem lately but found no luck. I would be glad if u guys would help me out.

Here's the story. My graphic card performance has dropped significantly ever since my power supply was overheated due to hot weather. I could smell something was burnt from the power supply, and so I replaced a new power supply.
After that, all my games fps has dropped significantly. For example, I used to be able to play games like Counter Strike: Global Offensive in max settings. But now i can only have a smooth fps on low settings in 1920x1080.

My previous power supply, the one got overheated was Cooler Master RS-460-PCAR-A3 460W.

My new power supply is Huntkey Jumper 500

Im posting this two pictures because i don't know how to read them. i want to know whether my new power supply is sufficient to support my graphic card or not.

My graphic card is Nvidia GeForce GTS 450.

My question is that whether is there is a problem with my new power supply, is it not enough power allocated to graphic card?
Or my graphic card was spoiled due to the overheat incident.
With your answer, I will be able to know whether should i replace a new PSU/GPU/else.

I would be glad to be helped by the experts from here! Thanks for your time to reading this. Please let me know what do you think and what should I do. Sorry for my poor English.😀

 

[animal]

I normally only recommend using PSUs made/sold by reputable companies such as Seasonic, XFX, Corsair or Antec (maybe a few others). I have never heard of your new PSU manufacturer, so I cannot vouch for it's operation, or even if it can operate at the continuous power levels required in gaming situations. Many cheaper, no-name PSUs may say that they are a 500W PSU, but that is the peak power they can deliver, not the continuous amount of power they can deliver. However, it may be the new PSU is capable and that your GPU was damaged when the PSU was, either by the same excessive heat that took out the PSU or by your original PSU dying, causing it to damage the GPU.

 

[Jeremy Ong]

I normally only recommend using PSUs made/sold by reputable companies such as Seasonic, XFX, Corsair or Antec (maybe a few others). I have never heard of your new PSU manufacturer, so I cannot vouch for it's operation, or even if it can operate at the continuous power levels required in gaming situations. Many cheaper, no-name PSUs may say that they are a 500W PSU, but that is the peak power they can deliver, not the continuous amount of power they can deliver. However, it may be the new PSU is capable and that your GPU was damaged when the PSU was, either by the same excessive heat that took out the PSU or by your original PSU dying, causing it to damage the GPU.

Thanks for your reply!
Is there anyway to diagnose my GPU to see whether is it damaged? If there is, i can easily know that whether should I replace a PSU and GPU.

 

[animal]

The simplest way would be install your GPU in another computer and see if it behaves the same way. That or if you know someone that has a GPU you could borrow to install in your rig and see if it works correctly.