Discuss Matching memory in the Memory forum on Dev Hardware. Matching memory Memory forum for discussing chips and modules from brands such as Corsair, Patriot, OCZ, Mushkin, G.Skill, Crucial and Kingston. Learn to fix RAM problems, overclock memory, adjust latencies, change timings, and use Memtest86.
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Matching memory
So stupid question. I just built a cheap, low power system recently and I was curious about the future.
The system I built is
Core 2 duo E7500 running at 3ghz
2x2gb G. Skill DDR3 1600 running at 1091mhz
Powercolor Go Green 5570
MSI P43-C51 Mobo
Samsung F3 500gb HDD
I am thinking down the line of a few upgrades. OCZ Agility 30 or 60gb SSD as a boot drive and windows 7 (still stuck with XP at the moment). Far down the line, maybe next year Core 2 quad 9400s or 9550s when prices come down more (power consumption is important to me) and possibly more memory.
4gb certainly doesn't seem very limiting, but I do use things like Photoshop pretty hard and some gaming, though not a lot of the later, at least not any really powerful games.
At any rate, with 4 slots on the Mobo I was thinking of maybe increasing the memory at the same time as getting the quad core processor. I don't really want to spend on another 4gbs so I was thinking of getting 2gb, 1x2.
Would this work and still work and dual channel mode so long as I keep the memory modules matched in the appropriate slots? Do the CAS latencies, etc have to match up between the memory modules? IE is it going to have to be DDR3 (well, duh) 1600 memory with CAS-7-8-7-24? Or could it be rated differently so long as I was actually running everything at the same clock rate? Latency? Memory module size on the 2nd set of slots doesn't matter so long as they match to each other, correct?
I'm not particularly knowledgeable on the P43 chipset, but for P35 at least you can never actually use the full 8GB as it lacks the address space, I think you end up limited to 7.25GB or similar. I think your manual may say.. In which case, I'd recommend sticking a couple of 1GB sticks in, that way you get 6GB and get to run dual channel. But maybe that problem was sorted in the P4x series, I don't know.
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