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Widespread problem with HP Omnibook XE3-GFs?

J

Joe

Jan 1, 1970
0
I posted this to the laptop groups and, as you can see from the
followups, didn't get any replies. Anyone have any idea about this
very common problem with HP laptops?


Anybody? Mr Ikenfixit? You MUST have come across this problem. The
forums are full of posts with the same problem. With all the different
omnibooks and Xe's I'd say I've seen hundreds of em. Anyway, I'm fed
up with wasting time on this thing(but it has been tempting after the
succesful repair of the Toshiba) and will probably sell the lcd and
some other parts on. Is there a market for this? Put the money towards
buying a new one....but it won't be an HP, that's for sure. There's a
design flaw here somewhere and I guess it won't come out on usenet.

Looks like I'm reduced to replying to myself, but I've worked on the
MBs a bit and this might help some of the many XE3/Pavilion owners out
there with the same problem, which is, in short, green light on, Fan
for 5 seconds, HD activity, CD spin up, but doesn't get to bios. Very
similar to the notorious Presario fault .
I resoldered the ac power sockets and thoroughly cleaned all the plugs
sockets and ribbon connectors. I then cleaned the entire motherboard
with an electronic solvent
Switched on and both the GF and GC booted up!! But *why* would the
ground on the ac socket prevent them booting up on battery?
Sadly, the GF still won't boot up 100%.....maybe 50%, but, insanely, I
*can* get it to boot up every time by firmly grabbing the left hand
rear of the case, or by pressing on the metal shield under the MB near
the bios/ram, so I'm pretty sure this is a ground problem

Really would like to find a circuit diagram.schematic for these.
 
T

Triffid

Jan 1, 1970
0
Joe said:
I posted this to the laptop groups and, as you can see from the
followups, didn't get any replies. Anyone have any idea about this
very common problem with HP laptops?

HP laptops have an atrocious reputation. Owners who are experiencing the
reasons for this are best advised to cut their losses in favour of a
Toshiba or IBM replacement.
 
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