hp 655 NEWTON_BR_HPC no display

[doctormasry]

i hAVE HP 655
pn: 010172W00-600-G
NEWTON_BR_HPC
MV_MB_V1

FIRST NO POWER AND ADAPTOR LED IS OFF
I FLASH BIOS . LAPTOP TURN ON OK = POWER OK
BUT NO DISPLAY

I TRY WITH MANY BIOS and many spi ic
ALL I FLAshed
here
https://www.badcaps.net/forum/showth...ight=010172w00
but no new

i check bios pin
pin 1 = 2.3 v
pin 2 = 0.98 v
pin 3 = 3.3
pin 5 = 0
pin 6 = 0
pin 7 = 3.3
pin 8 = 3.3

is Amd bad?
help please

[doctormasry]

Re: hp 655 NEWTON_BR_HPC no display

up

[mon2]

Re: hp 655 NEWTON_BR_HPC no display

Can you post or link a schematic ?

Which bios ? What are the markings on the bios ?

[doctormasry]

Re: hp 655 NEWTON_BR_HPC no display

don't found schematic for this model
just one ic bios winbond 32m

[Sephir0th]

Re: hp 655 NEWTON_BR_HPC no display

If another compatible BIOS doesn't work (as expected) make sure, all voltages are present which are supposed to be present, so check the voltages of all coils.

[mcplslg123]

Re: hp 655 NEWTON_BR_HPC no display

DRAMRST# present??