Help, Compuers Gone Brain Dead!!

[croak5]

Last nite my Gigabyte GA 965p DS3/e6300@ 3.4ghz went black. No smoke/funny smells, pops, nothing, just “bing” nothing on the screen. Weird in that, the system was still whirring away. Whole setup is only about 5 months old, running on an improvised test bed, light use, only really stressed awhile ago for O.C.ing and some video stuff.

OBSERVATIONS:

1) Fans on the board (noisy as ever) still fire up, hardrive spins up to.

2) The NB gets warm (usual state)

3) Graphics card, overclocked (but seldom under load) is warm…usual.

4) At time of crash cpu (e6300 @ 3.4 Ghz) was running at about 37c… just running word and a browser.

5) Rig had been crappng out intermittently for the last few days, sometimes requiring more than one cold boot to get started again (not the first time).

6) Can not log on to it from network, it just doesn’t show up.

7) Computer will start from keyboard with just the password programmed into bios (setup)

8) The display show nothing and does appear to be receiving as signal (usually displays a little blinking “digital” logo between the time the rig fires up until post screen appears. Also swapped out the monitor…Nada.

9) have unplugged and re-plugged in all peripheral multiple times

10) Tried running it on one stick of memory at a time.

11) Swapping monitors does nothing

CONCLUSIONS By observation number (above):

1) (fans etc.) Rules out problems with bulk of PSU. At least some circuitry on board is working.

2) (NB) Would seem to indicate circuitry for NB (and I assume the same as the cpu) is powered up and doing something…not a PSU core circuitry lead problem.

3) (GPU) At a minimum its power up, but probnably not receiving any signal to process and put out.

4) (Temp.)No weird smell, didn’t’ overheat and burn. Throughout its buggyness nothing been more than luke warm to “pretty” warm to touch)

5) (intermittent crapping) Seems to suggest a loose or bad connection, but pulled and re-plugged in everything, given all a good jiggle to. Corrosion unlikely in that here in So. Cal we’ve had the driest year on record.

6) Problem is not the monitor, the thing is not posting or booting in any hidden way. Dead CPU !!?, Dead mobo !!?

7) Bios is not corrupted, doesn’t jive with the intermittent crap outs anyways. But…

8) Monitor, blank: swaped it out, not getting any signal at all (but the cards warm)

9) Bad conections unlikely the problem.

10) Memory, not likely the prob, miracle for both sticks to die simultaneously

11) Monitor swap, Again not likely the problem, both moitor work on other system.


So, It start up from the keyboard, everything gets to normal warmth. Nothing on the screen, no access through the network.

What dead and why? Mobo or CPU? Would resetting the bios have any chance of helping (hesitant because it has a bunch of fine tuned O.C’d memorized)?

Thanks for any advise

Croak