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Mix different ddr2 kits on same board that have different timings

i currently have a Kingston HyperX 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory Model KHX8500AD2K2/4GR
Cas Latency 7
Timing 7-7-7-20
Voltage 2.0V
these are discontinued however i would like to upgrade to 8gb ram and buy another 4gb kit but all the avliable modules are now
Cas Latency:5
can \ will mixing both kits work on the same board
ASUS M3N72-D AM2+/AM2 NVIDIA nForce 750a
6 answers Last reply Best Answer
More about ddr2 kits board timings
  1. Hard to say. Usually memory will just default to the slowest module. That is a huge difference though.2.0 vs 2.3v and cas 7 vs cas 5 makes it a crapshoot. Too bad DDR2 is so expensive now or I would say just get an 8GB kit.
  2. so the best bet would be to just upgrade both kits since the current one is quite a bit slower then the current modules avliable
  3. Best answer
    I would not try to match the 2 but it may work if you try it, thus saving you some money. I hate to give wrong info but I really just do not think those will match well with such different voltages and cas latency. My opinion is don't try it.
  4. after more reading on other posts i agree with you in this , theres just too much of a difference to go that route :-)
    thank you for the input most helpfull
  5. Best answer selected by areicebo.
  6. This topic has been closed by Mousemonkey
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