Hi all,
I had a very similar problem some two weeks ago, like
1) machine stopped suddenly, symtomps
a) no video
b) power button amber light blinking
c) lights 1 & 4 ON
2) same as above happened a couple times until I reached a no power button light at all status
Suspicions:
1) hard drives, CD ROM, video or LAN adapters
2) memory
3) motherboard failure
First I removed all hard drives, one PCI LAN adapter and replaced the video card for a brande new one
- No result, machine seemed dead, no power
Secondly I removed ALL memory sticks then tried to boot with one at each time
- Same. Machine dead, no power
Then I removed the power supply and took it to a PS maintenance shop
- Technician tested it as OK on all tensions
The worst suspicion would be a motherboard failure. A technician said he examined the machine and told me it would cost some USD 450 to repair.
As the machine cost the same I returned home and
- removed the two processors heat sinks
- opened the processor bay lid
- removed both processors
- sat them back and closed the lids
- applied thermal grease to both processor caps
- reinstalled firmly the heat sinks
- replaced the CR2032 battery that powers the BIOS memory (old one was 2.8V, new one 3.3V)
After that the machine started working and passed all Dell tests without any failure. It's been working for 12 hs (last time I used it worked for 15 min).
Hope this can help you guys
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