Hi. I was in the process of upgrading the memory on an Omnibook XE3 from 64Mb of PC100 ram to 256MBx2 of PC133 (Many websites pointed me to these sticks so I'm not sure why the Mhz number is different.) So I first took out the 64Mb stick and stuck one of the 256Mb sticks in there and all I got was a black screen when it started up i heard the fans going but nothing on the screen. So I moved the same stick into the other slot and got the same thing, no beeps no nothing just a black screen. So just to cheak that it wasnt already screwed up I just took the new stick out and put the old one back in and it booted fine. After that I decided to try it again with the newer sticks and then it started beeping.
There are two types of beeps it makes,
one of the beeps is 3-3-1( with no memory, PC cards, or usb's)
the other beep is 1-1-1-1( it makes this beep when i have the old or the new memory in, and again nothing else plugged in)
Neither of these combinations of beeps show up on the service manual (Omnibook XE3 Service Manual
I think i have determined that the problem isn't the battery I have tried the older one and a brand new one and with no battery just with the Ac cord.
Any help is greatly appriciated
P.S. I might have tried both the PC100 and the PC133 sticks in the two slots at one time I don' know if this would cause I problem like this or not just an idea.