LA-B972P Caps lock Blink one Time

[battery.12v]

15-r259ne LA-B972P came no display, caps lock blink one time (CPU not Functional)
CPUcore is present 1.73V, all other voltages are present also 5v,3.3., 1.35v, 1.05v , gpu volt
any guidance ? flashed too many bios files but no luck

[Sephir0th]

Re: LA-B972P Caps lock Blink one Time

Using known working DDR3L RAM?

Check VIDALERT_N, H_VR_READY, PCH_PLTRST#, PCH_PLTRST#_EC, DDR3_DRAMRST#_CPU

You can find Schematics Here: https://www.badcaps.net/forum/showpo...75&postcount=2

[battery.12v]

Re: LA-B972P Caps lock Blink one Time

Using known working DDR3L RAM?

Check VIDALERT_N, H_VR_READY, PCH_PLTRST#, PCH_PLTRST#_EC, DDR3_DRAMRST#_CPU

You can find Schematics Here: https://www.badcaps.net/forum/showpo...75&postcount=2

It is not the same board, i cannot measure the signals

[Sephir0th]

Re: LA-B972P Caps lock Blink one Time

And what Board is it then? Full Board Number including Revision.
Also Pictures Would be nice

[piernov]

Re: LA-B972P Caps lock Blink one Time

Board is LA-B972P as indicated in OP. Link points to LA-A972P schematics which is a completely different board, it has been moved to its own thread with corrected title.

[Sephir0th]

Re: LA-B972P Caps lock Blink one Time

Thank you for clarifying. Missed that. And of course, my apologies

[mcplslg123]

Re: LA-B972P Caps lock Blink one Time

You can use LA-A992P schematic. Its 90% similar.