Re: Laptop powers off at random



Sorry I misread the battery part. I thought I read it as you had tried
with a battery alone.


The ram stuff...

Older Dells, such as PIII 100MHz bus have to have PC100 ram installed.
PC133 will not work even though it is backwards compatable with PC100.
The bios is programmed to not take it. Now Dell's ( such as C8x and
8000's ) with a 133 bus chipset, weither the cpu installed is 100 or
133, will accept PC133 ram. Why Dell did this I will never know. It's
a pain. I haven't had this issue so far with other brands but I
wouldn't be suprised. They all use SODIMM memory. The only physical
difference is SDRAM or DDR/DDR2. SDRAM is 144pin and the DDR is 200
pin.

If your older Dell had the problem of only powering on without a
battery installed, then it is a problem with either the DC jack, power
supply (very unlikely) or the power board ( if it used a seperate board
for this function, some do, some don't ) and since the power goes
through the battery, it will back feed to the motherboard. No laptop I
have refurbished so far has needed a battery in the system to operate
unless there was a problem with either of the above mentioned things.
I know this is not your current problem but I thought you and others
might be interested in this information.


Might also suggest a bios update.

Sometimes there are bugs with reguards to cooling and fan cycling that
they fix even if they ( the manufacturer ) don't say so. I had a sony
vaio with an Duron 900 that would crash and freeze in WinXP. I knew
there was a bios update specificly for XP but didn't think it was a big
deal. After getting sick of rebooting and crashes, I updated the bios
and it fixed everything. The most noticable thing was, the fan ran
almost all the time and at high speed. I knew it was heat related
because I had made it better with removing the thermal pad and
replacing with silver thermal compond. But that alone didn't cure the
issue totally. So even though Sony said it was for XP compatability,
it was more of a cooling fix than anything.

.



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