Author: ualdriver
Subject: x99 Extreme 4 won't post / erratic behavior
Posted: 19 Nov 2016 at 11:21am
Edited by ualdriver - 2 hours 27 minutes ago at 11:22am
Subject: x99 Extreme 4 won't post / erratic behavior
Posted: 19 Nov 2016 at 11:21am
 parsec wrote:I'm struggling to figure this out myself. Particularly using the same board, and a new one. So now you have nothing on the monitor at all? I'm at the point where your CPU might have been damaged, but given the system had the ability to POST after the initial problem, why should it be dead now? I would not dismiss this possibility yet. I wish your board had the Dr Debug display. If you had a POST beep speaker connected, when you cleared the BIOS/CMOS, that reset the POST beep option to Disabled. Just saying, I really don't get the logic behind disabling that option by default.  You wrote earlier that, "The keyboard is in a serial port", do you mean the PS2 port on the board's IO panel? Have you tried removing all the drives from the PC? As in remove the Samsung M.2 SSD from the M.2 slot, and disconnect any SATA data cables from the board. Just have the CPU and CPU cooler, video card, and memory installed in the board. No mouse or keyboard, nothing else connected. Double check your power cable connections, the 4/8 pin CPU power cable must be connected. Be sure the CMOS jumper on the board is in its normal position. Clear the BIOS/CMOS again with the button on the IO panel (done with the PSU unplugged from AC power, right?) The board won't POST completely with no drives and without keyboard and mouse, but it should at least display the ASRock screen and wake up the monitor. I forget if we determined your memory was not damaged due to the incident that started all of this. Regardless, try one DIMM in the A1 slot only. You may need to cycle through each piece of your memory. Or, going full debug mode, take the board out of the PC case, set up on cardboard on a table with the same minimal connection of components. |
To add to the continuing saga.....
Put a brand new CPU in......same as before. Computer turns on, fans turn, some mechanical hard drive activity heard, sounds promising, then nothing. System just hangs with fans turning and no POST to BIOS. Monitor doesn't even come out of standby.
Baffled. I've tried two MB's, two CPUs, two PSUs, two graphics cards. Unless all 4 sticks of my RAM went bad simultaneously or there is something wrong with my case, I am just utterly befuddled.
I'm heading out of town for a few days again, but when I get back I'm pulling everything out and putting it on cardboard and just getting back to basics. If you have any other ideas, I'm all ears......
Have a good weekend. Thanks for the help.
Edited by ualdriver - 2 hours 27 minutes ago at 11:22am