Can 2 different brands of memory coexist?

[redss]

I added a 1 gig memory stick (DDR400/PC3200) to a computer that already had one slot filled with a 512 MB stick.

Will the fact that the 2 memory sticks are different brands present any issues? And does it make any difference which slot has the larger memory size?

 

[Shadow703793]

Depends. Some times it will work perfectly fine, other times it will not. Download Memtest86+ and test over night. If it fails, you have problems if not you'll be fine most likely.