memory voltage, and quad ranked vs dual
Posted on 2009-07-08
Our company purchased a Dell PE 2950 III Quad Core Xeon X5450 (3.0GHz, 2x6MB, 1333MHz FSB) server a year back, and are now looking to upgrade the memory.
From the spec on the invoice, the current memory is:
8GB (2x4GB Quad Rank DIMMs) 667MHz FB
... but when I search on the Dell site to purchase another 2 4GB chips, I can't find anything that looks like it matches... Unfortunately, I can't seem to find spec that says whether or not the memory that comes up in searches is Quad Rank or Dual Rank, or what voltage I need...
My question is, does Rank Matter - ie, if I end up buying Dual Rank instead of Quad, will that work / affect performance / cost more/less? Also, with regards to the voltage - is there a correct voltage I should order, and again, how does that affect performance / cost? I don't know what we currently have in the server, or how to find out...
Many thanks in anticipation!