HELP! Dead motherboard but what else is dead?

Greebo

Greebo

Greebo

Caporegime
Joined
20 Jan 2005
Posts
45,777
Location
Co Durham
My Asus P6X58D-E dies on me this week, completely dead.

Received a new replacement on Friday, put everything back together but system won't boot up

Mobo lights up and fans spin but memory red light stays on. No beep codes.

On checking the manual and googling, unfortuately this can mean one of the following things:

Incompatable or faulty memory
Cpu not present or faulty
12v power supply not connected to mobo

Or lastly, loads of people have reported receiving brand new mobos from Asus which are dead on arrival with the memory red light stuck on.

So no help whatsoever to me and finding the problem.

So, what is it most likely to be? I have no other gear or mates with the right gear to test/replace anything in my system. I don't want to send each bit back one at a time for RMA as that will take weeks.

With the mobo dying, and on closer inspection it seems one of the mosfets blew, is it likely that it has killed one or all of the following?:

CPU
memory
PSU

Which would you order first to try as a replacement? PSU?

Or send the new mobo back to ocuk and try another one?

Anybody got any ideas for me finding what the problem is?

Anybody close by to me with an i7 1366 who wouldn't mine me bringing my rig over to test my cpu/memory/psu? I appreciate that will mean them stripping down their pc and it's a lot to ask but there would be some beer money in it.

Thanks
 
Spare memory? Try and use minimum parts e.g one stick of memory, old motherbpoard may have fried it. Check if its in right slot.
 
tried memory one stick at a time in each of the 6 slots. No dice.

If it makes any difference,fans and hard drives spin up and red memory light stays even when I do the follwoing:

No memory at all
No cpu in socket
No 12v power leads connected

This is making me either suspect my psu is faulty or it's a DOA mobo.

I have no spare memory,cpu, psu to try in the new board.
 
PSU - sounds like you've lost a rail. Personaly, I would remove the mobo from the case, and run it up on a flat surface outside the case then you rule out anthing else.

Get another psu and try again.
 
Pursauded my mate to lend me his pc so i could strip his psu out in exchange for installing a dvd writer.

Tried his psu and same result so that leaves me with

mobo
memory
cpu

:confused:
 
Have you tried the CPU in a different machine? As has being suggested before try the build outside the case maybe short
 
tried build outside of case and have no mates with a socket 1366 board to try the cpu in :(

unless a local ocuk volunteers?;)
 
I see your from Co Durham , but am using an AMD build

Have tried different brand of memory? or wild stab in the dark try a different 1366 motherboard
 
Next most likely candidate is memory...get a cheap stick of DDR 3?

Then RMA motherboard...Oh see if you can check your GPU in your mates rig....possibly hd too.Bribe him with a tenner or something...
 
I still had a 9800gtx+ which i used to chec the gpu so not that.

Ordered some 2000Mhz ram today so will check that tomorrow. If it works then i'll rma the corsair and sell it on return.

If that doesn't work then it's either mobo or cpu.

I have first mobo to come back from rma since i bought a new one as i couldn't wait so that will solve the cpu/mobo question.

I hate this.:(
 
Received new mobo, thanks Rich, and sam problem :(

That means it is either the cpu or I am really unlucky and have received two DOA mobo's from Asus which is unlikely.

Timeto RMA the cpu I think.:(
 
Does it beep at all during POST? The only time I've had a bad CPU the motherboard beeped to let me know, in a similar way to when you have bad RAM.
 
No beeps at all. Which is why I sent the 2nd mobo back as thought it was more likely than a dead cpu.

I just can't beleive I would have 2 brand new mobo's with the same fault though.
 
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