Power Supply or Motherboard gone bad?

[LENOSGAR]

Hi guys. Im having a problem with my Pc. I was happily playing Assassins Creed with my new video card, a GTX 760, when all of a sudden the screen went without a signal. I quickly looked at my PC and saw that it was still on, so I tried to exit the game by pressing alt+ctrl+delete, but no luck. Then, I shut down the computer by holding down the power button.When I tried to turn it back on, the power light turns on, but absolutely nothing else will. No beeps, no fans, nothing.

I tried everything; removing the new video card, testing out different ram cards in different slots, putting the old video card back, but nothing works.

After from a few sites, it is down to two things: the motherboard or the PSU.

My guess (AND I HOPE) its the PSU. Why? because not even the PSU fan will work. I suppose if the PSU still worked, at the very least its fan would spin. I don't think the PSU's fan depends on a functional motherboard to work.

This PSU is a replacement from the original which came with the PC. It was installed at my local repair shop and cost no more than $30, which could mean it isnt very good. It gives out 600w, which is average I guess, and it is enough to power my new videocard.

Something must have gone bad and it has now rendered it unable to power the whole Pc. I should note that my Pc has decorative lights that won't turn on (sometimes they turn on for less than a second).

After a few months of use the PSU had been making a very strange sound when powering up. After that, it went quiet. It could be that my new videocard, which requires 100w (600w) more than my old video card (ATI HD 5850), pushed it too far and it gave out.


I'm going to take it to the repair shop on Monday, but I just want to have an idea of what to expect. Thanks in advance for your help.

My system specs:

Win7
Intel i7 860

8GB RAM
PSU AGILER PS600 600W
GTX 760

 

[Pc_Gamer_0426]

Maybe because your psu is not a reliablie one.
Well for that get the Corsair TX 650w 80+bronze psu its quite efficient, and its from corsair.

 

[zink1701]

Possibly thats the case. The thing with budget PSU's is the dont do what they say on the tin, even thought it states 600w you will almost never get that. The 12v rails are week and has probably been pushed to the limit with that GPU and the rest of your rig. Replace the PSU with a 500w+ bronze or better rating, they cost a bit more but you get what you pay for. The power supply is the most overlooked part in any built but it one of the most important.

 

[LENOSGAR]

Thanks for your replies. I've taken it to the repair shop and I'm awaiting their diagnosis. I will update this thread when I get it.

I should note that, after I wrote this thread, I researched some more to find out whether the power supply's fan spins without being connected to the motherboard.
The answer is...nope. So, my biggest reason for thinking the PSU was to blame is now gone. We'll see.

 

[maarkr]

i buy an inexpensive psu tester for such times... good luck.

 

[LENOSGAR]

■ Good news everyone! Repair shop called, it was the PSU! They are going to have it repaired by tomorrow. The guy said he was going to install a 1,000w PSU, which costs around $65. I hope this one lasts.

 

[Pc_Gamer_0426]

Don't go with that psu maybe its cheap but the performance isn't good enough maybe It will work for quite some time but don't go with that. Perhaps go with a branded Psu w/ 80+ bronze certified.

 

[LENOSGAR]

Don't go with that psu maybe its cheap but the performance isn't good enough maybe It will work for quite some time but don't go with that. Perhaps go with a branded Psu w/ 80+ bronze certified.

Thanks, I figured. I already ordered a better one. The repair shop allowed me to keep using this one until my new one comes as a way to apologize for installing a bad PSU the first time.

Thanks for all your replies. Hope this thread helps someone in the future. 😀