AnnCoreOver 1000 dollars isn't that much for what you're getting I guess, but what are you getting out of this anyways?

Don't tell me it can run Minecraft or something along those lines. :laugh:

I'd like to know the application of such a set up as 64 GB seems like a lot as it is.

Kurt MaverickI have a slightly unrelated question....putting all the 8 modules on a X99 motherboard would reduce the overall RAM speed of all of them, or that's a thing of the past already?

I ask this because my crappy current PC' RAM went down from DDR2 800 to 667 when I installed the 4th module (and it went down from 1066 to 800 when I installed the third one). I don't remember right now if I bought all DDR2 800 modules or 1066, but they're all at least DDR2 800.

Rich Knapp...

But there really shouldn't be much of a difference in speed. More RAM the better. Speeds are in milliseconds, hardly noticeable. One more thing you can check is the order the chips are in, on your motherboard. I believe the slower chips would go in last according to your motherboard specs.

Kurt MaverickI have a slightly unrelated question....putting all the 8 modules on a X99 motherboard would reduce the overall RAM speed of all of them, or that's a thing of the past already?

I ask this because my crappy current PC' RAM went down from DDR2 800 to 667 when I installed the 4th module (and it went down from 1066 to 800 when I installed the third one). I don't remember right now if I bought all DDR2 800 modules or 1066, but they're all at least DDR2 800.

xkm1948You will be surprised. I use my X99 rig for genome file processing. One run of raw genome read is about 8~10GB. Running multiple of these reads through genome aligning pipline can eat up 128GB RAM in no time. I currently have 32GB and I can max out RAM usage easily.

AnnCoreDon't tell me it can run Minecraft or something along those lines. :laugh:

PP MguireI could have used this kind of testing when I reviewed a 64GB kit of Hyper X Beast. I literally couldn't find anything besides VMs and RAMDisk that would eat even half that RAM.

xkm1948We run most of these types of workload on our super computers where each 16 core nodes Xeon have access to 192GB registered RAM. However there are certain genomic data which will be inappropriate to process on those public funded University computers. We tried in the past and once the University administration found out they were not happy about it at all.

This is how most grad students in our department figured out it is better to use our own PC for those side line projects. 32GB RAM is barely enough for me. I will be grabbing one of these 128GB kit once their price comes down a little bit. This X99+Haswell-E rig is my poor man's super computer. It is still painfully slow comparing with the real deal though. What takes a mere 2hrs project will drag on for an entire day on my X99 platform.

AnnCoreDon't tell me it can run Minecraft or something along those lines. :laugh:

Rich KnappYour RAM needs to be the same speeds. Your RAM speeds will always default to the lowest. If you have 1066 modules and 800 modules, 800 would be the speed of all chips. You must have a 667 chip in the mix. Check again

But there really shouldn't be much of a difference in speed. More RAM the better. Speeds are in milliseconds, hardly noticeable. One more thing you can check is the order the chips are in, on your motherboard. I believe the slower chips would go in last according to your motherboard specs.

Kurt MaverickWhat I'd like to know is if X99 motherboards have some kind of similar one.

Kurt MaverickDidn't I already said that I DEFINITELY don't have any DDR2 modules inferior to 800?

Also, it's a motherboard limitation (I've got one with an AM2+ socket + nForce 750a chipset). What I'd like to know is if X99 motherboards have some kind of similar one.

Kurt MaverickSo, based on those replies, I guess that the problem is the crappy motherboard I own, more than the chipset of anything else...thou I'm still a bit paranoid over that, because I don't wanna sacrifice again memory speed for capacity, and be again in this pathetic situation where I currently have DDR2 667 :p

Kurt MaverickI have a slightly unrelated question....putting all the 8 modules on a X99 motherboard would reduce the overall RAM speed of all of them, or that's a thing of the past already?

I ask this because my crappy current PC' RAM went down from DDR2 800 to 667 when I installed the 4th module (and it went down from 1066 to 800 when I installed the third one). I don't remember right now if I bought all DDR2 800 modules or 1066, but they're all at least DDR2 800.

Fierce GuppyAs Rich Knapp wrote, RAM speeds default to the lowest speed module. In addition, these days RAM modules have a plethora of timings. Buying them as a kit means that there is a greater likelihood they'll work on the motherboard at their rated speed. In the case of DDR4 anything above 2133MHz is not guaranteed to work. It depends on how good the CPU's memory controller is and may also involve some stuffing around with the memory settings in the BIOS to get the modules working at their rated speed. I got lucky. My 16GB 3000MHz (4x4GB) kit works on my motherboard at 3000MHz with a slight increase in voltage to channels C and D.

Kurt MaverickWell, I'm either gonna get a Broadwell-E or a Zen CPU....so you tell me how good those memory controllers are gonna be :)

And my current CPU is a Phenom II x4 920. But like I said, that memory speed decrease came specified in the mobo's documentation, if I remember correctly.

PP MguireAnytime I used AMD stuff I inherently ignored stuff and did whatever I want. Like running 4 sticks of 800 in my board. Could probably do 1066 but put priority to CPU clock instead.

Kurt Maverick...which brings me to another question: Broadwell-E will support up to DDR4-2400. Is there any point on buying, say, DDR4 3000 modules having in mind that I don't plan on overclocking my system? (at least not anytime soon). Is the extra bandwitch useful for something, or does any other PC component uses it?