Updated motherboard/CPU, PC won't even POST?

Question

I changed my busted motherboard for a ASrock 4CoreDual VSTA, then changed my 478 P4 processor for a Pentium D. I have two DDR-333 512MB memory sticks and an NVIDIA 7600gs 512MB AGP card. I put everything in place and plug it to a monitor but the screen is just black. No BIOS or anything at all. Tried with a different monitor with the same results. Tested monitor with another PC and it works perfectly. Tried booting with 1 RAM stick or none at all, same results. My case speaker had a broken mole, I used two other different moles to be able to plug them in, but I don't hear any beeps. Everything in the case seems to run fine mechanically, all fans sping, DVD-ROM opens. I reset the bios by using jumpers as indicated in the manual, no change. Video card was working on another motherboard right before I changed it (it's almost brand new) I don't believe I damaged any parts with static or anything similar. What else could it be?

Answer 1

In my experience.... I would disconnect all devices from the MB, HD, FDD, CDROM, MEMORY, VIDEO, NIC, All Daughter Cards etc...
Then power up, Any beeps????

Yes.. Add ram ; No.. Reseat CPU Boot up Any Beeps?? NO then CPU is dead if Yes Add Ram continue.

Boot up, No beeps?? Good shutdown add Video

Boot up, Does it post (Have video display) No.. Test video card in another computer. Work in other computer?
Yes, then its your MB thats bad;
No, then your video card is bad.

Video card works Yes... Shut down

At this point start reconnecting one device at a time until everything is reconnected, and post without freezing.

Ensure all ribbon cables (Red cable) is lined up with pin one on all devices that use ribbon cables i.e. ATA HD, FDD, CDROM.

One more thing use a 9v or AA battery using paper clips and test your onboard speaker to see if it "POPS" if it does the speaker is working, then reconnect it to the MB.

Hope this helps.

Answer 2

Try running w/ bare minimum. That means 1 stick at DIMM1, detached HDD, ODD, FDD. Should at least get to BIOS w/ that. Also check the cpu heatsink to make sure it is not touching anything except the cpu cover (or heatspreader).

If nothing happens, try running bare min PC with motherboard unscrewed and not touching any metal part of the PC case. If it runs ok, mobo circuit is touching something in the case when mounted.

If it's still a black screen, return the mobo for warranty claim.

Answer 3

8600GT could desire to precise be gained for $126AUD. It runs on 256DDR3 RAM (i think of of, genuinely no longer DDR2). attempt IT assets while you're in Australia. it is in NSW regardless of the easy actuality that yet i think of of they furnish interstate. you would be needing a PCI-16x in a position motherboard regardless of the easy actuality that.

Answer 4

find a cheap video card, maybe a pci one, and then see if your card went bad.