DDR PC-2700 and PC 3200 performance

hi,
i'm using an old computer with this specs:

CPU: Intel Pentium 4 Northwood 2.53 GHz
Motherboard: Asus P4P8X
RAM: 2GB DDR
GPU: Sapphire HD 3450 512 MB DDR2 (AGP 8x)
PSU: 400W
OS: Win XP PRO SP3 / Win 7 PRO SP1 (all 32bit)

this is my question...my ram is:
1,5 GB pc-3200 (200MHz)
512 MB pc-2700 (166MHz)

if i use only pc-3200 ram modules, should I get a performance boost?
now my RAM clock is 134.7 Mhz...

Due to the processor cited you won't really get anything running at multiples of more than 133Mhz on the system.

Your slower RAM is as much as your board can handle anyway, so the faster 1.5Gb stuff is running in legacy mode anyway.

Unlikely you'd find it now, at least cheaply, but 2 x 2Gb of DDR2 533Mhz RAM would give you a boost... :)

Qdos said:

Due to the processor cited you won't really get anything running at multiples of more than 133Mhz on the system.

Your slower RAM is as much as your board can handle anyway, so the faster 1.5Gb stuff is running in legacy mode anyway.

Unlikely you'd find it now, at least cheaply, but 2 x 2Gb of DDR2 533Mhz RAM would give you a boost... :)

thanks for reply!

but in my bios i have 4 options in "ram speed"...:

Auto
133MHz
166MHz
200MHz

now i'm running Windows XP with RAM at 166MHz... but i'm not able to run them at 200Mhz

Just realised I said DDR2... I mean't to say DDR...

Man that sounds like on old Intel 845 board you're using...

this pc is very old... and yes, the Asus p4p8x has got Intel i845 chpset