Memory compatibility/matching question

[AiponGkooja]

System:
ASUS P5QL Pro
e7200 @ 3.8ghz (400 x 9.5)
2x2gb Mushkin ddr2-800 (stock 800mhz 5-4-4-12)
Visiontek HD4870 512mb
Corsair 550VX PSU
case/hdd/ssd/dvd


My question is, can I match the ram that I currently have with 2x2gb of ddr2-1066? (I don't know the brand or timings just yet, but I will update with them)

I have searched around, and I think the answer is yes, but I wanted a little more input.

Thank you,
Aip

 

[veri745]

You can, but all your memory has to run at the same speed/timings, so you'd probably have to downclock the ddr2-1066 sticks to ddr2-800 speeds