I looking to build a high-memory box. Here are the main things I need:
- As much RAM as possible (32GB+) at the lowest price possible.
- CPU performance is not as important. Dual or quad core chip would be fine.
Extra features that would be nice (but are not required):
- ECC RAM
- Reasonably efficient, not power hungry
I get some of my stuff from AcmeMicro.com. They have a pretty good selection and allow you to search and filter by almost anything (# of memory slots included). The RAM there is pretty cheap too.
You have to be pretty careful with memory. Server boards tend to be much more picky than desktop boards; sometimes you'll get RAM with the right specs and it just won't work. I'd recommend going through a place that allows you to configure RAM with the server rather than buying it separately, that way you know it's compatible.
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I fell in love with the opteron 6100 systems because of the amount of memory slots they usually come with. But the pickyness also worries me, and I've already heard about issues there
We use the Opteron 6100 series on several servers, some with registered ECC and some with unbuffered ECC, and I haven't encountered any problems with memory compatibility. The platform is very flexible.
If you're using huge amounts of RAM, there are things to keep in mind. The H8SGL has 4 channels, each with two DIMM slots. The RAM that you linked to is quad-rank, which will work at full speed if you put one per channel. If you put two per channel, they'll probably need to be downclocked from 1333 to 1066 to run reliably. If you were using dual-rank or single-rank memory cards, that wouldn't be necessary. See section 2-6 of the H8SFL manual.
If you were using dual-rank or single-rank memory cards, that wouldn't be necessary.
To save people some trouble, when you're looking at Kingston RAM, you can tell whether it's single/dual/quad-rank from the model number. Their DDR3-1333 ValueRAM starts with KVR1333D3 for 1.5V, or KVR1333D3L for the low-voltage ones. The next letter is the rank, either S, D, or Q.
Thanks for the suggestion. Do you recommend any specific 8GB RAM modules for the X8DTN+?...
just about any 8G ECC registered DDR3-1333/1066 module will do. x4 or x8, dual-rank or quad-rank, doesn't really matter! the IMC on Gainestown/Gulftown Xeon takes them all, and each CPU supports up to 144G RAM.
if you like Kingston, these 8G modules will do just fine on X8DTN+ board, BUT you don't want to mix them, though!
for CPU, you can also use Xeon E5503 dual-core if you don't really need a quad-core E5506.