|This flashing amber start light is referred to in Dell manual as due to PSU or Mobo. However, I have done all the usual checks:|
Removed ALL peripherals (Cards, cd's, memory etc) without result.
Tried new more powerful PSU, replica Pentium 4 HT CPU, no difference. Changed Bios battery, reset Bios, no difference & Bios amber Led is on. Still nada, no fans, no beeps, nothing.
Checked old and new PSU's with a meter and with a tester, All
voltages, leds OK, PG 350 OK.
PCI post test card flick on for less than half a second then nothing. If I unplug the 4 pin P2 CPU cable everything works, fans, HDD, CD etc., but of course as no CPU power no POST or beeps. Flashing amber now on steady.
PCI card tester now shows leds for all voltages, clock, but reset light on continuously & no Frame led! Reading shows 4 bars indicating no post started.
By the way the machine just died during use & no recent add on hardware changes. Also with the 4 pin cable inserted, but the CPU removed the system is dead apart from bios 5 volt led on mobo.
I need a real "techie" to help me as I've run out of ideas now.