Computer turning on, no bios, no display, no beeps..
I have a pentium 4 1.9ghz pc.
First, the chip was replaced, it has now been replaced 3 times, none which power on the machine (all the same configuration, 2 known to be working).
When the ram is removed, the motherboard beeps 3 times (Intel D845WN)
Ram placed back in, one at a time (3 slots, 3 sticks) nothing.
Tried 4 different video cards, 2 PCI 2 AGP.
Tried a new power supply.
Removed the cmos battery and replaced it about 5-10 minutes later.
Reset the bios through the motherboard jumpers.
Have tried to remove and reconnect all cables (IDE)
The harddrives/cdrom are all getting power, all fans are turning.
Is there anything else that I've missed? Any idea what the problem can be? Thanks.