the rams is right but the pc doesn't like it

[borednurse]

hi guys can anyone help?? I've try to upgrade my ram from 2 x 256 to 2 x 512. Every time I switch on the pc with the new ram it runs slowy for about 5 mins then reboots and doesn't load. do i need to change a setting or something I've manage to get it to work with 1 x 256 and 1 x 512

 

http://support.packardbell.com/uk/item/index.php?i=spec_cosmos&psn=010862120322

 

here the link for the detail of my pc the cpu as been upgraded to 2.5 celon

and this the ram I bought

 

SPECIFICATION :

 

168PIN Memory

133Mhz

3.3 Volt Module

DIMM (DUAL IN-LINE MEMORY 64 X 4)

Non-ECC, Non-Parity

Unbuffered

High quality

1GB (2 X 512MB)

PC133

168-pin high density memory

Non ECC

Unbuffered

Gold leads

Operating voltage: 3.3V

[Dalo Harkin]

According to the link that you gave the boards does support a maximum of 1GB of RAM - have you changed the setting for the voltage manually in the BIOS as 3.3V is quite high and I would have thought needed doing manually