New PSU no display

[flerbergerber]

I've been using a custom built PC for a while now, and I've never had an issue with it. Recently, I forgot to clean it out and the PSU got dusty and overheated. I got a new PSU (Thermaltake TR2 430W) and suddenly the display doesn't come on, even though nothing but the PSU has changed. I figured maybe the PSU overheating broke the mobo, so I replaced that with the exact mobo I previously had. Still nothing. I replaced the CPU, still nothing. I've used a voltage tester to confirm that the PSU is outputting, so the PSU isn't a problem. Here's what I've tried so far

- using another graphics card, which does work in another PC
- reseating all components
- unplugging and plugging back in all plugs
- booting with only CPU, PSU, GPU, and one stick of RAM. I only plugged in CPU power, mobo power, GPU power, and the power switch.
- clearing the CMOS
- everything in the "read before" sticky thread

It seems that this would confirm that the CPU, GPU, RAM, and PSU are not the problem. I'm temporarily using another PC and I'm using the same monitor and it works, so the problem also can't be the monitor. I've completely run out of ideas for what to do at this point, anyone know anything else?

PC specs -
CPU: AMD FX-8350
mobo: Gigabyte GA-970A-DS3P
GPU: GeForce GTX 750 Ti
PSU: Themaltake TR2 430W

 

[atomicWAR]

Well the fact you got a tier 7 PSU and it is the only thing changed tells me your PSU is the problem. Stick to tier 1 and tier 2 only. You couldn't get a much worse quality PSU. I would return it immediately. I hope it did not damage anything.

https://linustechtips.com/main/topic/631048-psu-tier-list-updated/ look at tier 7 and you'll see yours there
http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html You PSU in untiered in Toms.

Point being your PSU is the heart of your system and the last place you want to try and save money as it has the potential of killing you whole rig, burning your house down with you in it, etc. I suggest you get something by Seasonic or any other tier 1 or 2 unit.

 

[flerbergerber]

Well the fact you got a tier 7 PSU and it is the only thing changed tells me your PSU is the problem. Stick to tier 1 and tier 2 only. You couldn't get a much worse quality PSU. I would return it immediately. I hope it did not damage anything.

https://linustechtips.com/main/topic/631048-psu-tier-list-updated/ look at tier 7 and you'll see yours there
http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html You PSU in untiered in Toms.

Point being your PSU is the heart of your system and the last place you want to try and save money as it has the potential of killing you whole rig, burning your house down with you in it, etc. I suggest you get something by Seasonic or any other tier 1 or 2 unit.

Ah, I was hoping the PSU would still work fine. I knew it was generic Best Buy brand and probably wasn't too great, but I didn't expect it to be so bad. I'll order an EVGA PSU (like my old one) and let you know if it works

 

[atomicWAR]

Sorry the news wasn't better. Yeah unfortunately Thermaltake is one of those companies that has some tier 1 supplies and some tier 5+. They are all over the place. EVGA is a little better but even they have some bad ones as does Corsair. Seasonic is the only company besides PC Power and Cooling that nearly everything they put out is tier 1 or 2. PSUs require more research then your average PC component being the heart of your system. Which EVGA do you plan on getting. Their Supernova line is pretty good as are some of their other ones but unfortunately even a few of their supplies are tier 7. I suggest you check what every you buy against the lists I linked you.

 

[flerbergerber]

Sorry the news wasn't better. Yeah unfortunately Thermaltake is one of those companies that has some tier 1 supplies and some tier 5+. They are all over the place. EVGA is a little better but even they have some bad ones as does Corsair. Seasonic is the only company besides PC Power and Cooling that nearly everything they put out is tier 1 or 2. PSUs require more research then your average PC component being the heart of your system. Which EVGA do you plan on getting. Their Supernova line is pretty good as are some of their other ones but unfortunately even a few of their supplies are tier 7. I suggest you check what every you buy against the lists I linked you.

I tried the SuperNova 750 B2, still no luck. I once again tried moving the GPU to a different computer, and it runs correctly there, and the display works. I tried moving the PSU from the other computer into mine, and it still doesn't work. The mobo I'm using is brand new, I bought it under a month ago, but could it still be the problem? I have no other AM3+ mobo, so I'm unable to transfer my entire setup to another mobo without buying a new one.

 

[atomicWAR]

The problem with cheap PSUs is they can fry components. So when you first put the thermaltake in your system it could have easily killed your motherboard, cpu, vid card or anything plugged in for power. I can't say for certain your motheboard is dead but it is possible your PSU killed it. So when you bought the new PSU your system was DOA. It could just be your CPU as well. without parts to swap there is no way to tell. I suggest taking it to a tech at this point,