Question X99 OC formula boot issue- CPU Led 1 blinks shortly in red, then system stops (in a loop)

dmilush

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Apr 28, 2015
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Hi Everyone

I have an X99 OC formula and never had issues so far (build is almost 5 years old).
Last week I tried to boot, but no success.
Fans start for 1-2 second, CPU Led 1 blinks shortly in red, then system stops and then keeps repeating the same until I switch of the power.
I do not hear a beep (even with an external speaker plugged in).

It is not the PSU, I tried a spare one.
I have tried reseting the CMOS (in several ways) and changed the battery.
I have removed everything short of the CPU, board and PSU, still no change.
I have tested for corrupted BIOS by trying the backup one, still no change.

What would be the next steps - reseat the CPU (does it make sense)? Anything else I am missing.
I obviously do not have a spare MB or CPU to test.

Many thanks in advance.
Best,
Dimiter
 

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