The problem comes when the BIOs is booting, after Dell splash screen it starts hardware check, but very slow, printing letter by letter everything.
I have seen the behavior described above as related to memory compatibility. However, after considering the graphics card and processor, could it be the power supply is not providing sufficient power to your system?
I have checked both power supply, ram and everything.
The problem is with the mob (i'm almost sure of that), actually, the problem came suddenly after cleaning the mobo, but i can't not guess what may i have touched or damaged that have lead to this problem
You may test the system out of the chassis with minimum components on a non-conductive surface.
I have already tested everything (including almost bare MOBO) but even if running with only cpu and ram i get the same:
if graphic card removed boots fine (i can access via ssh, all cpu cores recognised, fast boot and everything ok), but if i plug the card i get the slow bios boot (hardware check screen is very slow, prints letter by letter so it takes a lot of time to perform boot check and start running the os (or giving disk error if testing with minimum components).
Few random tries boots without problem with the GPU plunged, so i hope its a fixable damage, but i hadn't determined yet whats the source of this problem.
Any recommendable test to perform and discard possible issues?
Perhaps there is a misplaced jumper somewhere on the board.
What about BIOS settings? Did you reset them back to default?
yes, with both menu restore default settings and jumper way, any of them worked (it might be something with the hardware, but i cannot figure it out)
I ran out of ideas. Hopefully other members will jump in and assist you with this odd behavior.
Thanks for the help.
I know is a strange behaviour, and i don't know which test can i perform to get more accuracy results about whats going on, but i hope other members can guess what could this be.
Anyone? I think i'm giving up repairing this mobo
I would suggest based on the bent pins, to confirm if all of them are properly fixed to the socket and arranged. If the processor is not properly seated this could be causing the issue.
Additionally, you may test your processor on another known working motherboard to see if all the cores are detected.