PSU is faulty after installing a new graphics card, unsure of next step

Bormear

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I purchased a new graphics card from amazon, the ASUS Strix GTX 970, and it arrived this Monday the 29th of August. I installed it when it arrived.

Immediately, there were no issues. However, soon I discovered that my computer was creating a burning smell, like maybe burning plastic or dust. This only happened when the card was under load: playing GTA V or giving it work for mersenne.org.

After a while, I got worried, as the burning smell continued. I opened up the case and inspected the card for any labels I missed (as per a thread I found on this forum), any loose connections, perhaps any wires touching something, but there wasn't anything significant I found.

So I put the card back in, and decided to ignore it, and try to return it if it broke. I was relieved because the burning smell started to fade away, but then my computer powered off. When I tried to switch it on, the fans spun for half a second and stopped. Reading more forum posts on this site, I checked all the connections, cleaned the dust out, replaced the mobo battery, and miraculously it was able to power on again.

Everything was normal, and I decided to be ballsy and try put the GPU under load again. After maybe 2 minutes the computer powered off again.

Again, reading forum posts here, I decided to try the "paperclip test" on my PSU (google it if you don't know what it is, there's tonnes of posts about it). Finally, some insight: when I switched the power on with the paperclip in, the fans spinned and then stopped, just as before. So, conclusion: PSU is busted...sort of, because for some reason doing the paperclip test allowed the computer to power on again once everything had been reconnected...(this happened twice)

So, I should buy a new PSU, right? But I'm worried that there's something wrong with the card, and that it somehow broke the PSU...reading reviews for my PSU on amazon, there were a LOT of people complaining that the PSU "exploded" after a few months, so maybe I just bought a bad model/brand...I'm worried that if I buy a new PSU, the new graphics card will break it...

Should I:
- Scrap this PSU and buy a new one
- Bring the desktop in to a repair shop nearby (they also built this PC) and see what they think
- Something else?

Here's the build:
CPU: Intel Core i5 3.33 Ghz
Motherboard: Intel DH5TC
RAM: 8GB 1333(Mhz?)
GPU: ASUS Strix GTX 970 (old one was the NVidia GTX 550 Ti)
PSU: "Alpine 700W PSU 120mm Red Fan"
Drives:
- Liteon 24x SATA DVD RW
- 1TB Sata hard drive
- 120gb Samsung 850 EVO SSD (System drive)
OS: Windows 7 Home premium 64bit


Advice would be appreciated! :)
 
Solution
Your new graphics card did not "break" the PSU, it just exposed how bad it is. I would take the PSU back to the shop that built the computer for you and explain what happened (the burning smell, computer shutting down), and ask them to replace the PSU with a higher quality one at little or no cost to you.

Here is a link to the Tom's PSU Tier list, in addition to the PSU's suggested above:

http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html
Your new graphics card did not "break" the PSU, it just exposed how bad it is. I would take the PSU back to the shop that built the computer for you and explain what happened (the burning smell, computer shutting down), and ask them to replace the PSU with a higher quality one at little or no cost to you.

Here is a link to the Tom's PSU Tier list, in addition to the PSU's suggested above:

http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html
 
Solution

Bormear

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Alright, I'll buy a new PSU. From that list, it looks like the XTR TS 550W (from the tier 2 list) would fit my build nicely, at a reasonable price.

TBH, I've had the computer almost 5 years now, I think it would be unreasonable to go back and expect a replacement, even if they did spend too little on the PSU.

Thanks for your help, I'll report back to this thread with the results.
 

Dark Lord of Tech

Retired Moderator


http://www.komplett.ie/seasonic-g-series-g-550-550-watt/80010778/details.aspx
G series is first rate
 

Bormear

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I've already ordered the one I mentioned above
 

Bormear

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No worries. I searched a bit online to find the 700 watt power supply was being sold for £14 / €16.69 / $18.62 !

That's just crazy...who knows why they decided that was a good idea.
 

Bormear

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So I received & installed the new PSU a few days ago (http://www.amazon.co.uk/dp/B004RJ8EKI). Everything is in order now: No problems having 100% load on GPU and CPU for a day, runs GTAV, etc. Thanks for assistance.