jopapadogr
Member level 2
Hi all
i recently bought a used and broken acer aspire 5942g mobo (LP5511-P) from an e-shop and i noticed the following things:
1) With mobo only (no cpu, no ram, no interfaces, no lcd screen etc) i put the power jack and the mobo lights the 3 leds. Then i push the power btn and it lights the rest 4 leds too.
2) I noticed that after a couple of seconds, the 7 above leds are going off and after a couple of seconds it goes on again in a endless loop sequence.
3) I put the FAN in the slot and it starts blowing air and after a couple of seconds it goes off again
4) I check the +3V and +5V signals and it looks ok
5) I also noticed that when it starts, all the signals +3VALW and +5VALW are on and off again in the same sequence as at step 2.
6) When i plug in the battery it goes on the same sequence loop (on then off)
7) With the battery only (no AC adapter) it goes on the same loop (on and then off)
Is it any walkthrough guide or other way to check this mobo?
TIA
PS I have the schematic diagram also
i recently bought a used and broken acer aspire 5942g mobo (LP5511-P) from an e-shop and i noticed the following things:
1) With mobo only (no cpu, no ram, no interfaces, no lcd screen etc) i put the power jack and the mobo lights the 3 leds. Then i push the power btn and it lights the rest 4 leds too.
2) I noticed that after a couple of seconds, the 7 above leds are going off and after a couple of seconds it goes on again in a endless loop sequence.
3) I put the FAN in the slot and it starts blowing air and after a couple of seconds it goes off again
4) I check the +3V and +5V signals and it looks ok
5) I also noticed that when it starts, all the signals +3VALW and +5VALW are on and off again in the same sequence as at step 2.
6) When i plug in the battery it goes on the same sequence loop (on then off)
7) With the battery only (no AC adapter) it goes on the same loop (on and then off)
Is it any walkthrough guide or other way to check this mobo?
TIA
PS I have the schematic diagram also
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