More problems with my EP45-UD3P
This build is 3 years old now. Had a lot of problems early on with memory timings but has basically been running pretty well for a couple of years now. Gets used a lot, heavy gaming etc.
Today it just powered down while in Windows (7). No BSOD or anything, just shut down. It continually tried to power up but would not post at all. It wasn't the "normal" continuous reboot cycle that is common with these boards, it was simply just powering on for a few seconds, then powering off, then powering on etc. nothing being displayed on monitor, monitor remained in power save mode.
Disconnected all peripherals, keyboard, mouse, hard drives, same result. Removed gfx card and memory, same result. Took the motherboard out of the case, same result. Connected a working power supply from another machine, same result. What happens is the 6 phase leds light up, the CPU fan starts to spin for maybe 10 secs, then the power shuts down, then it repeats, indefinitely. Does the same with both power supplys. Do those phase leds give some indication of what the problem could be. I can't remember what those leds do under normal running conditions. Anyway, the leds are 2 green, 2 yellow, then 2 red.
What else can I try? Sounds like it's the motherboard? How can I confirm if it is the motherboard causing the problem.
One thing I did notice when I pulled the machine apart is that the case fan that sits directly behind the CPU wasn't working, looks like it had seized up, (I thought I had a BIOS warning on that). It wasn't dirty or anything, but was very stiff. Initially I thought power supply might have been having a hard time trying to spin this fan and fried itself. The CPU fan also seemed to be spinning much slower when it was going through the power cycle on/off, maybe I was just imagining that. Anyway, this power supply powers up another PC, but I didn't give it a full workout.
Any suggestions greatly appreciated. I want to rule out any other possible causes as best I can before I ditch the motherboard.
(1) Gigabyte 3DAurora chassis - Gigabyte Ex38-DS4 - Xeon 3110 - Zalman CNPS9500 LED - 2x1GB PC2 8500 Crucial Ballistix Tracer 2.0v (BL12864AL106A) - ThermalTake Cyclo RAM cooler - 2xMSI Radeon HD4670 - Corsair HX 620W - WD 36GB Raptor - Seagate 250GB (ST3250310AS) - Asus DRW 2014LIT - XP Pro SP3 (32bit)
(2) NZXT Apollo chassis - Gigabyte EP45-UD3P - E8400 - Xigmatek S1283 Red Scorpion - 2x2GB PC2 8800 G.Skill 1.9v (F2-8800CL5D-4GBPI) - Gigabyte GeForce 9600GT - Corsair HX 520W - Seagate 250GB (ST3250318AS) - LG DRW GH22NP20 - XP Pro SP3 (32bit)