HP P5LP - pc mainboard wont work

[ktmmotocross]

Hello,
have this HP P5LP mainboard that wont work.

with processor power cable it start for half of seconds and without it for two seconds.

dont have short anything on CPU power, no mosfet shorted, even with psu it didnt draw current

without cpu power i check all power rails and looks good expect some ST D888 power transistor that have 1,22V output.
Dont have schematic or boardview to check wat is supplying but i dont think 1,22V is something usual voltage.

Any hint on this?

[SMDFlea]

Re: HP P5LP - pc mainboard wont work

Here`s the boardview .

[ktmmotocross]

Re: HP P5LP - pc mainboard wont work

thank mate. u helped me again

[ktmmotocross]

Re: HP P5LP - pc mainboard wont work

damn. its completely different i dont have that LE version and rev is 1.07

[SMDFlea]

Re: HP P5LP - pc mainboard wont work

damn. its completely different i dont have that LE version and rev is 1.07

I don`t have version 1.07 ,its available on ******* and remont-aud if you can manage to sign up.

Name of file: ASUS P5LP (60-MBB0VI-0J) REV 1.07 - BoardView

[piernov]

Re: HP P5LP - pc mainboard wont work

P5lp/60-mbb0vi-0j

[ktmmotocross]

Re: HP P5LP - pc mainboard wont work

thanks looks like it is the same

[SMDFlea]

Re: HP P5LP - pc mainboard wont work

P5lp/60-mbb0vi-0j

Thanks for the boardview piernov .

[ala_borbe]

Re: HP P5LP - pc mainboard wont work

Hello,
have this HP P5LP mainboard that wont work.

with processor power cable it start for half of seconds and without it for two seconds.

dont have short anything on CPU power, no mosfet shorted, even with psu it didnt draw current

without cpu power i check all power rails and looks good expect some ST D888 power transistor that have 1,22V output.
Dont have schematic or boardview to check wat is supplying but i dont think 1,22V is something usual voltage.

Any hint on this?

that 1.22v may be a problem.... look around that transistor for some driver (maybe gone bad) adn try to replace

other than that, you may shot black and green on psu connector and then measure, or test with good old finger if something is heating... my bet is on LAN chip.... in my country there is a lot of power surges so either sound or lan chip goes bad.... removing it from board fixes it

hope it helps

[ktmmotocross]

Re: HP P5LP - pc mainboard wont work

i look on boardview and that tranzistor is on 1.2V line so it looks ok

[saifou]

Re: HP P5LP - pc mainboard wont work

thanks