I have 3 of these Dell 755 with odd problem. All of them has no apparent components failing yet when I try to power them on the amber color power light comes on for less than a second then powers off.
I have replaced power supply, CPU (I have tried several: Q6600, E5500, E4400), same issue EXCEPT that when I install Pentium 4 CPU (which doesn't belong to this model) it keeps powered on with solid amber light and solid network activity light (one board has fan spinning at medium speed, while other 2 boards with normal idle speed).
Kindly let me know what could be the issue, I have replaced CPU, RAM, PSU with no luck...
I have replaced power supply, CPU (I have tried several: Q6600, E5500, E4400), same issue EXCEPT that when I install Pentium 4 CPU (which doesn't belong to this model) it keeps powered on with solid amber light and solid network activity light (one board has fan spinning at medium speed, while other 2 boards with normal idle speed).
Kindly let me know what could be the issue, I have replaced CPU, RAM, PSU with no luck...
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