Re: Upgrading laptop to 1GB of RAM causes blue screen crash

techman41973 wrote:
I have a 6-year old Fujitsu lifebook that had 512MB RAM (1 512MB
module). I recently purchased a 2nd 512MB module to upgrade to a full
1GB. My laptop manual states that it supports 1GB of RAM with a 512MB
module in each of the two banks. Now I get the blue screen of death
around 5-10 minutes after I open the lid coming out of standby. When I
reboot, I don't get the blue screen until minutes after I close and
reopen the lid again. I tried swapping the modules (in each bank) and
still had the same problem. Each 512MB module works fine alone.

Just making a wild guess about how your machine is set up.
What's the OS?
See if you've got enough hard drive space. Making the ram bigger
can make the swap file bigger. Ditto for hibernation.
I'd turn it all off, reboot, then back on again to reinitialize it.
Shouldn't have to, but strange things happen.
I'd turn off hibernation.
Turn off the swap file.
Reboot. to the bios setup. Check to see the ram is correctly
reported. Save and exit.
reboot to the OS.
Make sure the hibernation file and swap file are gone.
If you need hibernation, turn it back on.
If you need the swap file, turn it back on.
reboot
If it's still busted, download and run cpuz.
see if the memory modules are matched. If they have
different speeds, you may have trouble. Not supposed to,
but strange things happen.

Download and run memtest86+ to check for memory errors.
Run at least one full cycle, more if you have the patience.
Swapping modules suggests that each memory thinks it's ok,
but they get interleaved when they're both in there.
Operating mode is different. Interface loading is different.
Failure mode may be different.
Not supposed to happen, but you've exhausted the obvious,
it's time to look at things that shouldn't happen.
mike
.

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