View Full Version : Has my Motherboard blown up?
Well, a hour or two ago my PC turned it's self off.
Upon turning it on again the fans started, but there was not beep from
the MB and no output to the moniter.
The GPU has it's 'VDDC_FAULT' / insufficant voltage light on, but a quick
test of the PSU shows that all voltage rails are producing correct
voltages.
A CMOS wipe, RAM removal, GPU and HDD removal and even CPU removal
produce no beeps from the MB.
Am I right in thinking my MB has blown?
What could have caused this?
CaptainHaplo
12-06-09, 09:29 AM
Letum,
Remove all the add in boards and the drives from the MB. Basically you want just the board, the cpu and power hooked up. Start it then. If you get no POST beep at that point, yes its the MB.
It sounds like it is already, but I have seen other boards die and while still connected cause the mb to not be able to post.
I'm watching with interest Letum but CaptainHaplo has the best diagnosed answer!:up:
Lord Justice
12-06-09, 09:06 PM
curious indeed, with psu still pumping norm, with no post beeps at all def sounds like mobo, did u check all wiring attached, and all connectors clear of dust, all leds light up ,check the pci e rail carefully, pins on graphics card? even with the psu still on norm reg output if situated on bottom of case is there a sufficent gap floor to base for air intake no carpet pile blockage? but if no post probly pointless checking graphics side, iamm 99per cent something has fryed on mobo if ALL correct wires and psu cables are seated correctly. sorry keep us up to speed could be a vital lesson learned here.
kiwi_2005
12-06-09, 09:58 PM
Might sound crazy i had similar problem to yours and after switching video cards swapping ram around and adding an older cpu i still had the problem I then went out and brought a new mobo battery. Fixed. I spent like 2 days crying over my precious gaming rig and the problem was a dead battery! :rotfl2:
So before you give up and chuck mobo away buy a new battery ($11-15). Good luck
Ahhhh! now that is interesting kiwi.
Ack!
the battery was fine so I bought a new MB.
Problem persists. Looks like I wasted my cash. Dammit.
http://duxcw.com/faq/mb/deadmb.htm
Some basic trouble shooting procedures on this site. I was to lazy to type it.
Lord Justice
12-09-09, 11:09 AM
sorry, poor fellow, is one covered, warranty?:)
Arclight
12-09-09, 12:25 PM
Ack!
the battery was fine so I bought a new MB.
Problem persists. Looks like I wasted my cash. Dammit.
Too hasty. :(
Check the CPU, would be my guess at this point. ;)
FIREWALL
12-09-09, 12:58 PM
@ Letum. Sorry to hear about problem especially this time of year when money has to be spent on others.
I am going to watch this thread closely as a friend has a simular problem.
I would like to post it here with Letums permission.
It is an interesting situation and all are close to cracking the case. (lame pun NOT intended)
We both might get an answer to this problem.
Too hasty. :(
Check the CPU, would be my guess at this point. ;)
I doubt it is the CPU because I can't see how that would cause the VDDC
error in the GPU.
My suspicion is that the VDU has become defective. I have sent it off for
testing as it is under warranty.
Arclight
12-09-09, 02:46 PM
Fair enough, but you mention the board doesn't even beep a code. Removing a dead graphics card should let the board function normally, unless the circuitry to the PCI-E slot is toast. Considering you got a new board, this is highly unlikely.
Board that does nothing = dead CPU in my experience. Even a dead battery should normally let the system boot, but with a "bad checksum" error, notifying of a reset of BIOS settings.
SteamWake
12-09-09, 04:31 PM
Have you tried re-seating the CPU (take it out and re-install it) and making sure the cooling equipment is properly seated as well?
Yer, I moved the CPU when I tried the other MB.
I found out why there is no post beep.
After *lots* of googling I managed to find out that it signals the end of the
post tests via a light and not a beep unless I plug in my own speaker for
postbeep.
Gah!
At least I can confirm it's a GPU issue now. Post light flashes fine except
with the GPU in.
Wonder what the new MB will get on ebay...
ed: It's depressing seeing how far the value of my kit had sunk in less than a year.
What a bummer Letum, you should have done what CaptainHaplo suggested on the second post and removed all boards and drives, then power up, this would or should have produced some post beeps.:oops:
Oh well, hopefully you get most of your money back, otherwise if the new board is better use that and sell the old one!:yep:
What a bummer Letum, you should have done what CaptainHaplo suggested on the second post and removed all boards and drives, then power up, this would or should have produced some post beeps.:oops:
That was something I tried before the first post.
No post beeps because I was looking for sounds, not lights.
Oh well!!:doh: Atleast you found it, lets just hope that you can sell one of the boards for a decent price, I usually get very reasonable prices when selling on eBay, also check out the prices for a new GPU, just make sure the seller has a good high star rating, I have purchased 3 this way and very happy, also be aware that 5% are unreliable (don't receive goods), for this reason now I always make sure the expensive goods are posted either registered or insured!:yep:
FIREWALL
12-09-09, 11:46 PM
Just came online. Sorry to hear how this turned out.
So it was the video card ?
HunterICX
12-10-09, 04:12 AM
Since your computer is less then a year old, don't you have a year warranty on its components might they break down?
HunterICX
Just came online. Sorry to hear how this turned out.
So it was the video card ?
No idea. I will find out soon tho.
Hunter:
My GPU is, but not my MB as I customised some of the cooling.
SteamWake
12-10-09, 10:29 AM
Yea some mobo's have the little pizeo speaker built in, others do not. Without a speaker of some sort you will not get sounds.
Did you recently change video cards? Its possible that it may be drawing too much currrent on one yoke of the psu and the psu is shutting down in an overcurrent situation.
No, the video card has been in there for a while now without problems.
Besides, the PSU is a beefy 800watter.
SteamWake
12-10-09, 12:25 PM
No, the video card has been in there for a while now without problems.
Besides, the PSU is a beefy 800watter.
Maybe so but that doesent mean a component cant fail to short and cause an overcurrent condition. Switching power supplies are odd things and pretty intolerant of overcurrent conditions.
Hey your kid dident try to jam a penut butter sandwich in there did he? :haha:
Ohh! I see what you saying now.
Yes, a possibility indeed.
Good news.
The results came back for the GPU and it is faulty. They are sending a replacement.
Golly good!
Thankyou very much everyone who offered help and advice.
SteamWake
12-22-09, 11:41 AM
Good to hear...
A while back I ordered a machine from Ailenware (before they were assimilated) and the video card died in the first month. They (Ailenware) responded that they no longer had that particular card and would have to settle for a new better card :yeah:
Well that one died too just inside of warrantee believe it or not and again I had to settle for a new more powerful replacement.
I dont suppose you will get that kind of support out of Ailenware any more. :nope:
Good news.
The results came back for the GPU and it is faulty. They are sending a replacement.
Golly good!
Thankyou very much everyone who offered help and advice.That's very good news Letum, a Christmas bonus!!:yeah:
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