If you are still interested in the Corsair, personally I would pick the 6400C4s or the 8500s if the C3 is out of budget. If you intend to OC at 1:1, the PC6400s are still good up to and usually well past 800mhz. We are seeing them hit 900-1000mhz although that's past the official rating. If you want to use the memory upclock ratios, then the 8500 is great on that board.
If you go with another brand, good luck with your build and OCing 8)
Fortunately for Corsair I purchased the 8500's shortly before retiring to bed last night - only to awake this morning to apt403's post.
I don't mind spending a little bit more for a better product - but I hate wasting money. I've always bought Corsair ram, and I'm running 3200 2-2-2-5 right now, so I'm not new to spending a lot on ram either. I just hope the difference in price relates to something.
I'll be sure to post my results here as soon as my new hardware arrives - hopefully I won't have spent over $100 for some nifty heatsinks.
What you are seeing there is the SPD tab. That is simply the "generic" or JEDEC compliant timings programmed into the SPD to allow the memory to boot with a variety of MOBOs at the bios defaults. Your actual speed is shown under the memory tab.
Keep in mind that your CPU FSB is 266mhz. PC6400/DDR800 runs at 400mhz but tranfers data 2 times per cycle. So, you get a dual data rate of DDR800.
If you run your system at stock speeds at 1:1, you will be running the memory at 266mhz or, DDR533. You will need to manually overclock the CPU and/or use the dividers ( aka - ratios ) to get your memory to run at 533mhz or DDR1066/PC8500.
Am I right in saying that instead of running at 5-5-5-15 as they should be, they're operating at 5-5-5-31? And at only 399Mhz instead of 533Mhz?
"IF" CPU-Z is reading the info correct, then yes, the bios has set 31 for tRAS. In any event, you should set these timings manually in the bios. And, yes your memory is running 399mhz because your MOBO is set up to use a 2:3 divider and the FSB is at 266mhz. As I said, you'll need to OC to get the memory to 533mhz.
I'm still having some trouble, I brought my CPU up to 3Ghz without issue. The motherboard seems to think that 333Mhz bus at 5:4 that should be 1066Mhz on the memory. Unfortunately it freezes loading windows.
If I bring my RAM down to 3:4, it runs at 444Mhz, and I can take the CPU up to 3.3Ghz, and it's still loading into windows - so I think it's the memory that isn't making it.
My motherboard doesn't have a 2.2V setting on the memory either, it's 2.17V or 2.259V. I left it on auto for now so it might be using an even lower setting, which one should I be using?
Set it manually to either setting, 2.17v or 2.259v if 2.17v fails. You should not be having issues at the memory with that speed. Set your memory for unlinked and enter 1066 manually with the CPU at stock.
The system wouldn't pass post at 3-5-5-15, it reached windows but didn't pass my stability testing at 4-4-5-15 (system rebooted during Lost Coast stress test with Prime95 in the background), and similarly at 4-5-3-10.
Picture included with Super PI 16M test and 3DMark 06 Score: