finding faulty hardware

[civilian]

I've been having some errors with a program that I wrote.
On my laptop one of the double variable contains 0.00034534e-102 when it should contain 0.
When testing it on a different system the variable contains a 0 as it should.

My first guess is that it is the laptop's (eeepc) hardware.
It's not the harddrive. (Produces the same error with different drive.)
How can i test the memory and CPU?

[Telemin]

I'm not sure it's a hardware problem. Otherwise other software would be having faults as well.

It may well be something to do with the FPU or CPU instruction set. Google for any quirks with the CPU.
_________________
The Geek formerly known as -Freestyling-
When you feel your problem has been solved please add [Solved] to the topic title.
Please adopt an unanswered post

[pappy_mcfae]

There is a program called mprime. Its purpose in life is to find very large prime numbers. Its secondary purpose troubleshooting hardware. It puts computers under a real bind, either CPU, memory, or both. It is used by many as a troubleshooting tool. I have personally used it on all my systems. They all passed with flying colors, even the tired old Toshiba laptop.

I have read numerous other testimonials from people who have used it to find hardware problems. It might help with yours. Simply decompress the source file, and place the compiled executable into /usr/local/bin. Give it a try.

Blessed be!
Pappy
_________________
This space left intentionally blank, except for these ASCII symbols.

[civilian]

I can't find any problems with my CPU (Celeron-M ULV 353) on google, but I'm not very google proficient.

I ran mprime for 6 hours and no errors. So far so good.

In our labs at the university, the grub boot screen gives the option of booting the kernel in a special memory scan mode. Unfortunately I don't have the privileges to get to grub.conf. Can anyone tell how to do this memory scan?

[jcat]