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Mixing Memory and finding affordable DDR2

Last response: in Memory
August 4, 2011 2:57:36 PM

Hello gents,

My desktop right now is running 4 GB of RAM and I want to bump it up to 8 before DDR2 goes away forever.
However, I'm currently using OCZ reaperX RAM. This can't be installed next to eachother, already limiting me to single channel, not dual channel, which will run the RAM at 800MHz.

Current RAM:
MOBO: k9as cf-f
Processor: AMDx2 64bit

-Am I able to mix RAM with the reaperx safely? How do I go about doing that? (I was always just told not to mix RAM)
-Would it be better to change to new RAM and ge tthe dual channel?
-Can anyone find some affordable DDR2 that's compatible on the market? I got the reaperX for around $50 I think (2 years ago), but with DDR2 going away its hard to find reasonable prices.

Thanks for any help!
a c 347 } Memory
August 4, 2011 3:49:02 PM

First you'd have to find another set of DDR2 '1000 MHz' 5-5-5-18 @ 2.1v for them to work properly together. You 'can' mix-match Frequency, CAS and attempt an averaging of Voltage but it's a 'CONCOCTION' of MAYBE. Also, mixing the Type including IC's and Brand itself has no guarantees. OCZ got out of the RAM business for a good reason - they produced inferior RAM and people quit buying their 'stuff.'

I assume that you have a 64-bit OS otherwise 4GB is your MAX.

Mix-Match ; ALL BIOS Values must be entered manually and the MOBO BIOS must/slould have access to: DRAM Frequency, DRAM Voltage, and CAS Timings; otherwise the chances are even further reduced that the 'SPD' encoding will 'by chance' accommodate the mix.

1000 MHz 5-5-5-18 @ 2.1v
1066 MHz 6-6-6-20 @ 1.8v
1000 MHz 6-6-6-20 @ 1.95v + PRAY ; BIOS

The closet matche I found is the F2-8000CL5D-4GBPQ ->

1000 MHz 5-5-5-18 @ 2.1v
1000 MHz 5-5-5-15 @ 2.0~2.1v
1000 MHz 5-5-5-18 @ 2.1v + PRAY ; BIOS

RAM Specs:
link ->
1000MHz DDR2
2.1 Volts

MOBO Specs:
Memory Supported: 533MHz DDR2
Dual Channel Supported
667MHz DDR2
800MHz DDR2
1066MHz DDR2 (AM2+ CPU Only)

Memory Type: DDR2
Number of Pins: 240-Pin
Number of Slots: 4
Maximum Memory Supported: 8GB - 64bit
Max. Memory Supported Per Slot: 2GB