RAM not detected

[KiiKxz]

I got these 2 RAMs from my friends old computer and I tried to put one in the slot.
It didn't fit so I took off 1 of my RAMs that was already
installed in the computer when I bought it to see what it looks like.
I reinserted the original RAM (but not the 2
RAMs I got from my friend) back in and turned on my computer.
I went to view my settings and it only says I got 248MB of RAM.
It used to be 512MB.

HELP PLEASE!!
:(

[cguan_77]

try to clear your CMOS...and go to BIOS..choose load default settings...check if it will help..

[KiiKxz]

uhmm..
may I ask how?

sorry, n00b here..

[cguan_77]

check this link..

http://www.dewassoc.com/support/bios/bios_password.htm

i suggest just take out the CMOS batt and power on your machine for 10secs.. turn it off and put back CMOS batt..

but if you're not tech savy....ask a friend..who knows how to do it.. you might get into more problem