DELL 3537 LA-9982P not detecting hardisk

[ravi_1617]

Hi
DELL 3537 LA-9982P. Board is unable to detect any hardisk.3 volt and 5 volt present at hardisk connector
Where to start from

[ravi_1617]

Re: DELL 3537 LA-9982P not detecting hardisk

Although, Board it non graphic ,takes long time (25 to 30 seconds )display to come, mean time hardisk led glows. Flashed bios.same condition unable to detect any hardisk.booting with usb

[KvnTM]

Re: DELL 3537 LA-9982P not detecting hardisk

Flash a "virgin" BIOS with clean ME. Thats your problem with the slow POST. This COULD also prevent it from detecting your drive.

SATA HDD/SSD or NVME SSD ?

EDIT: Attached the Schematic if you need it.

MOD Edit: Link to schematic - https://www.badcaps.net/forum/showthread.php?t=122412
.

[ravi_1617]

Re: DELL 3537 LA-9982P not detecting hardisk

Thanks for such a fast reply.
Definitely I will try

[SMDFlea]

Re: DELL 3537 LA-9982P not detecting hardisk

The bios and schematic are already posted in a few threads: https://www.badcaps.net/forum/showthread.php?t=46349 .Please try to post links to existing files rather than posting the same ones again .

[KvnTM]

Re: DELL 3537 LA-9982P not detecting hardisk

The bios and schematic are already posted in a few threads: https://www.badcaps.net/forum/showthread.php?t=46349 .Please try to post links to existing files rather than posting the same ones again .

Will do

[SMDFlea]

Re: DELL 3537 LA-9982P not detecting hardisk

Will do

Thank you .

[mcplslg123]

Re: DELL 3537 LA-9982P not detecting hardisk

Sata ODD detects??

[ravi_1617]

Re: DELL 3537 LA-9982P not detecting hardisk

Hi.
sorry for late update
when this set came for repair it had short problem. not heating any where. so opened many jumper to find,problem was PU300 SY206DQNC defective.
Replaced it .but by mistake i forgot to close jumper PJ300 back side,
so PU300 SY206DQNC was blown. repaced it again .
Than came the late display ,HDD not detect problem

My question is "virgin" BIOS with clean ME. as said by" KvnTM" why if its original clean working bios of same set

now flashing after many bios .what went wrong ,now board again down problem ,board on without display ,again PU300 no power.
is problem somewhere else . should i replace and try.

Thanks