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Can one mobo burn out a PSU quicker than the next?

post #1 of 8
Thread Starter 
The reason I ask is b/c I recently grabbed an ASUS Rampage IV Formula mobo second hand from a buddy. I heard it's a good board.

Anyway, I first grabbed a Corsair TX 650W (or it could've been 600W, can't remember). It was a refurb. I plugged it into the mobo and the mobo lit up, but never turned on. I troubleshot it with my friend, he switched the PSU to a Platimax 1000W and it fired right up like nothing was wrong w/ the mobo. Worked fine.

I thought everything was okay until the other night the computer completely shutoff, abruptly. Then again... the mobo lit up but never actually turned on anymore. I noticed the PSU spinning it's fan, but not much else happening. I just bought another PSU (an Antec 750W) and of course... the mobo is now powered back on like nothing happened.


Granted... i'm not keeping this ASUS mobo. I also bought a Gigabytte board yesterday b/c 1) I want to upgrade to 64GB RAM... and 2) the ASUS mobo had damaged PCI ports. Also.. this Gigabyte board has more USB 2.0 slots. However.... i've been thinking...


Was this a case of bad luck with the PSUs?

Or did this mobo completely destroy 2 PSUs in a row on me?


Granted... the 2 burnt out PSUs were a used one and a refurb one. But still.... I wouldn't have expected the refurb to be a DOA to be honest. And I would've expected the Platimax to work for more than 3 months. I honestly put maybe a total of 48 hours worth of actual run time on it in the 3 month period it was working for me. Prior to that.... my buddy had it for a year.... he probably did put it to some more serious work.

So yeah... I just want to do a final assessment here so I know what to look for in computer components. I may never buy used key components like this again to be honest.

Is it possible for a certain mobo to be a PSU-killer? Or was this just bad luck of the draw on 2 PSUs in a row.
post #2 of 8
Are the old PS's completely dead? I would try it on another working machine to verify that it is indeed your MB causing the problems.
post #3 of 8
Thread Starter 
^Thanks, I forgot to mention... i'm going to test the Platimax on my new mobo just to see if it still works. Going to test tonight.


I don't remember if the Corsair was completely dead or not.... but the Platimax is not completely dead. It turns on and the fan spins... just doesn't power up the board.

I also tested it by jumping the PSU using the paperclip test (insert paperclip on green wire and black wire). The PSU still turned on, but again didn't fire up the mobo. Going from memory, i think the Corsair did the exact same thing... the fan was spinning but it didn't turn on the mobo.
post #4 of 8
well if the motherboard has a damaged (legacy) PCI slot that gets 5 volts . . . it could be the MOBO.
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loon 3.2
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post #5 of 8
Thread Starter 
^makes sense

it's got 2 damaged slots lol.

We turned them both off on the mobo (it actually has a switch for it, i thought that was cool)... but still... that sounds sensible.
post #6 of 8
Thread Starter 
So guess what.... I can't even test if the Platimax PSU is truly working or not, b/c my brand new Gigabyte mobo is a DOA.


#JumpingOutAWindow
post #7 of 8
Wow that sucks. You sure there isnt a short somewhere else? Like motherboard mounts, ect? I could be wrong but my thinking is that even a faulty motherboard shouldnt kill a decent PSU certainly not an Antec or Corsair. Their overload or short-circuit protection should cut in and prevent the PSU from damaging itself.
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post #8 of 8
Thread Starter 
^No clue...

In any event... I returned the first gigabyte board and got a replacement. THe exact same thing is happening.. the brand new board, with brand new PSU (confirmed to be working) is not posting.. at all.

I've tried by putting different combinations of ram in different slots. I read the manual obviously and tried what it suggested. I've tried w/ 4 sticks and 2 sticks, in all recommended configurations... nothing worked. video card is in it's slot w/ monitors connected.... still no post.

The PSU turns on, spins for a sec, and then stops. It waits a few secs, and then tries to turn on again. THis cycle just continues itself, but it never stays running. With this also happening on the replacement board.. i'm wondering if there's something i'm doing wrong. Granted... i'm still a novice here.... but.. i've never ever had a mobo just simply not post on me. this is ridiculous. I even built a computer for someone else using a much cheaper micro ATX gigabyte board for AMD and even that posted. so why can't I get this Gigabyte GA-x79-up4 board to post. Would on earth could i possibly be doing wrong.

The ASUS mobo posted even without a heatsink installed on the 3930k. SO I know the chip isn't the issue either. it's this freakin mobo. I'm trying very hard to not return it and spend +$80 for the newer Asus Pro mobo. There's no reason this Gigabyte shouldn't work. I don't want to keep RMA'ing over and over again until one posts easily. (I drive to Micro Center... not far... but i could see this seriously getting out of hand, i don't want to run thru their entire inventory until one works.. maybe i actually am doing something wrong. BUT WHAT!)
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