Nearly dead acer aspire 5935g

[PC-MOT]

Ive got an Acer Aspire 5935g at the moment, it powers on, but doesnt get to post, or boot. the dvd fires up, fans work and keyboard lights up but thats about it.
It just wont boot at all, im suspecting dead mobo, heres what ive tried.

with/without battery
different psu
different ram
re thermal pasting and clean heatsink
booting without dvd, hdd or wireless card
checking mobo for obvious faults.
All lead nowhere
anybody think of anything else?

 

[Slaters Kustum Machines]

When you say with/without battery do you mean the external or CMOS or both? If you haven't removed CMOS battery I would try that as well.

 

[computersnmore]

Dead Acer

Did you plug in an external monitor. I didn't remember you saying anything about checking Video.

 

[PC-MOT]

Did you plug in an external monitor. I didn't remember you saying anything about checking Video.

forgot to mention that, I did do it, and nothing

 

[PC-MOT]

When you say with/without battery do you mean the external or CMOS or both? If you haven't removed CMOS battery I would try that as well.

All these have got is a soldered RTC battery.

 

[PC-MOT]

Ok so here is an update:

If I reset bios by shorting out the pins and leave the AC lead in it boots up now, however If I unplug power lead, I need to reset it all again, am I right in thinking this is a cmos battery issue?
As I mentioned it is soldered to the main board so should it be getting recharged when laptop battery does, or will it need replacing?

 

[dgiles79]

Ok so here is an update:

If I reset bios by shorting out the pins and leave the AC lead in it boots up now, however If I unplug power lead, I need to reset it all again, am I right in thinking this is a cmos battery issue?
As I mentioned it is soldered to the main board so should it be getting recharged when laptop battery does, or will it need replacing?

The rtc battery is not rechargeable, it will need to be replaced.

 

[PC-MOT]

The rtc battery is not rechargeable, it will need to be replaced.

thank you, i'm not practiced at soldering, but I suppose its time to learn! Ive got loads of old boards to try on first.