PSU or Mobo gone? PC won't start after power trip

Mister-M5

Hi guys,

Last night I was using my computer when all of a sudden everything powered off suddenly, as if the switch had tripped. Computer, monitor and powerline adapter.

Sure enough, I went to the switchboard and it had. So I reset the switch and tried to restart the system. Monitor and powerline adapter work fine but the there isn't a kick out of the computer. Changed the fuse in the power cable but still no luck and the socket is working fine. Neither the fans nor the lights on the case are powering up either.

The computer is 13 months old and has the following components:
-CiT Vantage Midi Mesh Gaming Case with HD Audio, 4 Fans, Card Reader and No PSU - Black
-Asus M5A97 LE R2.0 Motherboard (AMD 970/SB950, DDR3, 6 x S-ATA 600, ATX, PCI-Express 2.0, USB 3.0, Socket AM3+)
-AMD FX6300 Black Edition 6 Core (3.5/4.1GHz, 8MB Level 3 Cache, 6MB Level 2 Cache, Socket AM3+, 95W, Retail Boxed)
-Kingston Technology 120GB Solid State Drive 2.5-inch V300 SATA 3 with Adapter
-Corsair Builder Series CX 430 Watt ATX/EPS 80 PLUS Bronze Power Supply Unit
-Corsair CMZ8GX3M2A1600C9 Vengeance 8GB (2x4GB) DDR3 1600 Mhz CL9 XMP Performance Desktop Memory Kit Black
-Radeon HD 7770 VTX3D X-Edition

Any advice or suggestions would be greatly appreciated.

Cheers

duridian

If the green LED on the motherboard isn't lighting when the PC is plugged in and the PSU is switched on, then I'd say it doesn't look too good for your power supply. LED is near the SATA connectors of your motherboard judging by the images I saw when I googled it.

I'm a bit surprised as Corsair are a very good brand, but maybe 430W is not quite enough, honestly I couldn't say for sure. I believe AMD processors and graphics do tend to be a bit heavier on juice than Intel and Nvidia.

I feel your pain as I actually had something similar happen last week on on an older backup PC of mine, which had a mishmash of parts. Old Asus LGA775 socket Nvidia 680i motherboard, 2.4 GHz Pentium Dual Core E2220 and Radeon 4850, with 2 hard drives and 4GB of DDR2. The 480W Tagan PSU running this behaved exactly as you described when it popped its clogs, tripping the switch etc. I have bought a Corsair CS650M to replace it, fingers crossed.

Mister-M5

duridian wrote: »

If the green LED on the motherboard isn't lighting when the PC is plugged in and the PSU is switched on, then I'd say it doesn't look too good for your power supply. LED is near the SATA connectors of your motherboard judging by the images I saw when I googled it.

I'm a bit surprised as Corsair are a very good brand, but maybe 430W is not quite enough, honestly I couldn't say for sure. I believe AMD processors and graphics do tend to be a bit heavier on juice than Intel and Nvidia.

I feel your pain as I actually had something similar happen last week on on an older backup PC of mine, which had a mishmash of parts. Old Asus LGA775 socket Nvidia 680i motherboard, 2.4 GHz Pentium Dual Core E2220 and Radeon 4850, with 2 hard drives and 4GB of DDR2. The 480W Tagan PSU running this behaved exactly as you described when it popped its clogs, tripping the switch etc. I have bought a Corsair CS650M to replace it, fingers crossed.

Thanks for the info. I've had a look around the web today and there are a few tests similar to the one you described above, so I'll give them a blast after work today. I didn't get a chance last night as it happened quite late and I had work early this morning.

Truth be told, I used the PSU Calculator when I built the PC and it actually recommended a little more than 430W, but I was assured by a couple of different forums that it would be sufficient. To be fair to the people that assured me, 2 friends of mine built very similar computers around the same time, one with a less powerful graphics card and one with a more powerful processor. Both of these are working perfectly with the exact same PSU, so maybe I was just unlucky.

My computer was also in regular balanced power mode, don't know if that makes a difference.

Cheers again for the info.

Redfox25

That should be enough wattage for your pc.
It is likely just a blown fuse. Check fuse in plug of psu.
Also double check if socket is still working. Might soud silly but will only take 2 mins to check.

Rebel Rebel

Happen to me a few months ago, to get my pc to boot i had to flick the on/off switch a good few time before it would finally start up. In the end i replaced the PSU

Redfox25

If you have a spare kettle lesd try that.
Does the fan turn on in the psu when you turn it on?

Mister-M5

Thanks for all the info guys. Popped a spare PSU into it last night and it booted up immediately.

It's unusual because the Corsair PSU is only 13 months old and there's a 3 year warranty on them. Trying to organise a warranty replacement now.

Cheers again