Upgrading laptop to 1GB of RAM causes blue screen crash

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.

 

I had a similar problem with an old Sony Vaio.
The problem turned out to be a poor connection to the motherboard of one of the Ram slots.
The problem is well known in Vaio circles, maybe your problem is similar.
There was no easy fix for it that was inexpensive, so I just reduced the Ram and used the laptop as a back up.
Ended up with a new T61 which I am VERY happy with.

Best of luck.

Cheers

Malai5

 

Then it could be a problem with the second RAM port. Did you try booting with just one 512MB stick on the second (previously unused) port ?

You can use Memtest86 to test memory errors.

 

Nope. Not a physical socket problem.
Each module works fine independently regardless of which slot its installed in.
Its only when I have them both together (in either of the 2 slot of configurations) where I have this problem.

 

Could it be that the modules wont match ? As you have one old stick and a brand new one, maybe they just won't work togheter, sometimes it's important to have 2 matched sticks.

Can't you order another one that's the same as the last one and try it out? And if it doesn't work, just return it?