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GA-P55A-UD5: POST fails.

GA-P55A-UD5: POST fails.
« on: November 16, 2011, 11:56:48 am »
G'day Guys,

Specs below.  My beauti has been running for just over a year.  One morning I get this failure.  I'm guessing it is something to do with the CPU because of the cpu_led but I'd like an opinion on it.  CPU, or CPU fan.  The board led's sparkle as follows:

At rest:
s4/s5 = red

Pressing power button I get 5 sec cycles of the following:
S4/s5 remains on
s3 for a split sec lights yellow
md1 = green and md2 = yellow for a split sec
cpu_led = blue and stays until s0 below
dimm_led = blue for a split sec
gd1 = green and gd2 = yellow and stays until s0 below
phase led dd1 = green and stays until s0 below
holds for 1/2 sec
s0 for a split sec lights yellow. Then all off.

No other blue leds light up.  No audible beeps nor any activity on the monitor.

Two notes (in case it means something):
- It is possible that the successful boot I updated the Graphic drivers (GTX470).  Warm reboot was successful.
- It is possible the last known operational state was left to hibernate.  I just starting to let the beauti hibernate.

Things I've done/tried:
- Isolated all from the mobo bar CPU/fan, case fans, mem and PSU (and front case connectors).
- Have installed a cheap PCI bus powered graphics card.
- Have tested and swapped PSU.
- Reset mobo bios factory defaults.
- Pulled the Bios battery and power cable and allow to sit for a while.
- Googled my brain out.
- Thinking of buying a cheap(?) CPU to swap and see.

The beauti:
i7 860 (clocking per board defaults ie no overclocking)
Zalman copper fin low RPM CPU cooler (with speed controller). Keep in mind this has been running for a year so I'm rulling out the CPU fan speed check.
GA-P55A-UD5 Rev 1.0
Corsair HX 750W
Corsair Dominator 4G (2x2G) TW3X4G1600C9D ver 2.4. I know this is a 1.8v (1.5v SPD) but again keep in mind this has been running for a year.

All bar hard disks were bought new and assembled a year ago.

I'd love to hear any thoughts.  I feel empty with out this beauti running...
Cheers,
Idiot Boy.

Dark Mantis

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    • Dark Mantis
Re: GA-P55A-UD5: POST fails.
« Reply #1 on: November 16, 2011, 01:10:01 pm »
Hi

The first thing to try is to clear the CMOS. Please follow these instructions exactly.

Remove the power cable from the mains supply and then press the power switch on the case for a few seconds just to drain any residual energy in the PSU capacitors.

Once done remove the motherboard battery for at least one hour before replacing it.
 
Next plug back into the mains supply and boot.
 
You will now need to enter the BIOS by pressing DEL and load Optimised BIOS Defaults.

Make any other changes to the BIOS settings to suit your self like disabling the floppy drive, disabling the full screen logo and making the HDD the primary boot device and then press F10 to save and exit.
Gigabyte X58A-UD7
i7 920
Dominators 1600 x6 12GB
6970 2GB
HX850
256GB SSD, Sam 1TB, WDB320GB
Blu-Ray
HAF 932

Gigabyte Z68X-UD5-B3
i7 3770K
Vengeance 1600 16GB
6950 2GB
HCP1200W
Revo Drive x2, 1.5TB WDB RAID0
16x DLRW
StrikeX S7
Full water cooling
3 x 27" Iiy

Re: GA-P55A-UD5: POST fails.
« Reply #2 on: November 17, 2011, 10:58:38 am »
G'day Dark Mantis,

Thank you for the suggestion.  Followed it to the letter.  Still the same (double checked) christmas tree led 5 sec cycle light display.

Any other things to try?
Cheers...

Re: GA-P55A-UD5: POST fails.
« Reply #3 on: November 18, 2011, 04:46:40 am »
Is this heading for an RMA as per http://forum.giga-byte.co.uk/index.php/topic,7378.0.html??

CPU or mobo?