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I am looking to upgrade a Desktop currently with 2 sticks of 2GB RAM, by adding a couple of sticks of 1GB RAM. I am unsure what I need to look at to check their compatibility. Both sets of memory run on DDR3, the current 2GB sticks are CH9, while the two I want to add will be CL7. Will these two different types be compatible?
Is there something else I should be looking at to see if the RAM is compatible? Would I be OK to just put both types in the PC and see if at accepts the new RAM or am at risk of damaging something?
Thanks for your help
EDIT:
Current set-up: 2*2GB running at 1600
change to: 2*2GB running at 1600 + 2*1GB running at 1066
As an aside, typically, the less RAM chips you have, the better access the CPU (motherboard) has access to. So, you'd be better off getting 1 x 4GB ram chip, middle choice would be 2 x 2GB RAM and least performance would be 4 x 1 GB RAM. Of course, it depends on the motherboard. – Dave – 2012-10-09T12:01:30.637
2x2GB would actually be faster assuming dual channel is used. – Miles Hayler – 2012-10-09T12:23:48.677
I never heard of CH... CL is CAS Latency http://en.wikipedia.org/wiki/CAS_latency and it's not the only property for a RAM that counts: http://en.wikipedia.org/wiki/SDRAM_latency#SDRAM_access & memory clock speed ... Anyway, I tell you one thing, you are light years faster with more RAM than with using the swap file on the disk. Don't worry about clock speeds. You're not running benchmarks on a computer all day.
– None – 2012-10-09T14:04:59.673Your question is not clear. Please give exact model numbers. You have to explain what CL and CH memory is only because your incorrect usage of terms. – Ramhound – 2012-10-09T14:57:58.063