PSU Fault?

SuperBOB

SuperBOB

SuperBOB

Associate
Joined
11 Jan 2004
Posts
515
Location
Sydney, Oz
My new PC has a curious problem.

I am now reasonably confident its the PSU - but I wouldn't mind some advice still.

The PC refuses to bring the monitor out of Mode 2. The DVD Drive was being probed constantly to - I now think this is because it is rebooting constantly. I disconnected everything except what is required to post - and it still has the same behaviour.

I have swapped:

Monitor
Graphics Card
PCI-X Slot (Although I am unsure if the second slot would work without another card in the first slot, so this could still be the issue, unless someone can confirm the slot is irrelevant)



Here are the components im using:

Item: Antec 1200 Twelve Hundred Full Tower Case - No PSU - Qty: 1
Item: Gigabyte GA-MA790X-DS4 790X Socket AM2+ 8 channel audio ATX Motherboard - Qty: 1
Item: Corsair 4GB Kit (2x2GB) DDR2 800MHz/PC2-6400 XMS2 Memory Non-ECC Unbuffered CL5(5-5-5-18) Heat Spreader Lifetime Warranty - Qty: 1
Item: AMD Phenom 9550 Socket AM2+ 2.2GHz 4MB L2 Cache Retail Boxed Processor - Qty: 1
Item: Hi-Power Black 700W 14cm Blue LED Fan PSU - 20+4pin 4x SATA 4x PCI-E - Qty: 1
Item: Arctic Silver 5 High-Density Polysynthetic Silver Thermal Compound Thermal paste 3.5gram - Qty: 1
Item: Extra Value 120mm Blue LED Fan - 4pin Molex Connection - Qty: 1
Item: Speedlink SL-8793 Medusa 5.1 ProGamer Edition Headset - Qty: 1
Item: Extra Value CD-311 MP3/iPod Earphones - 1.2m Cable 3.5mm Jack - Qty: 1
Item: Nexos Black DJ Headphones - Flexible Easy Store Folding Design - 3.5mm Jack - Qty: 1
Item: Logitech G5 2007 Edition Laser Gaming Mouse - USB - Qty: 1
Item: Sapphire HD 4850 512MB GDDR3 Dual DVI TV Out PCI-E Graphics Card - Qty: 1



Any advice much appreciated =)
 
Also

Also I have no PSU to test against, so I will have to do any further testing without one. All this stuff is <6 months old and from OCUK so I need to get it narrowed down as much as humanly possible, then go the RMA route I suppose.
 
I have located a PSU to test with - borrowing it off a friend, will be here tomorrow. Lets hope thats the end of it.
 
have you made sure in both the control panel display center and the display center for your gpu? had more or less the same problem when i hooked up my plasma to play crysis on it, what with having to switch the display mode from 1 to 2 so i could get display on the tele and vice versa when i wanted to go back to my LCD. :)
 
hm

Ok I swapped the PSU with a friends just now and still it wouldnt boot :-(

I removed ram, graphics, mem, still no bios error codes even.

I guess my motherboard is fried?
 
Sounds like it. To be clear - did the rig ever boot or has it been like that from the off? It could be a shorted board so if you can arrange to have the mobbo powered up out of the case (resting on wood or cardboard) then that would tell you.
 
As above, take it out the case and power it up with the bare minimums, checking all cables are plugged in.

If that works (slight chance, as long as the board hasn't melted a few tracks due to the short...) then check the positioning of the raisers on the case.
 
I bought this kit mid-august, it has worked fine upto about a week ago.

I hadn't thought of a short - I will try to boot on cardboard tonight,

thanks.
 
Got through to OCUK support today - they have no orders to my address in their system. .. . .

How.. interesting. Sent an email to Gigabyte UK instead - hopefully they will sort it out.

Another bit of evidence that it is constantly rebooting - the LEDs on the graphics card come on every 6 seconds or so. (Little red ones, which google says indicate a lack of power to the board, which occurs during every reboot!)
 
gigabyte respond

Gigabyte asked me to do some troubleshooting.

With no ram in - 1 long beep
With ram in, in any configuration - no beeps but still no boot/post

I also booted it on my desk outside of the case for them - same behaviour.

:-(
 
hm

I thought id provide the end to this thread, Gigabyte accepted the RMA and confirmed a problem with the board.

Al working now
 
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