w3680 bclk
w3680 bclk
@thrasher_565 @Zando_ noticed the problem with 3200 wall. The 3t command rate seems broken, so I reduced it to 2t. Now I'm hitting 3300 on two sticks. I'll run a short test session first—check if my expected times match. Then I'll try one stick max and see what happens next. The 3-stick frequency issue might actually come from how the command is set up, so I'll re-test that too.
3000 ddr3 installed on Windows with uncore memclk 5:4. Prime95 doesn't cause crashes across threads, possibly allowing stable performance at a 3:2 ratio. The system runs smoothly at around 20x memory multiplier and 16x twin sticks on a 3300 BIOS. It looks like the clock speed is near its limit, and I might need to swap in more sticks. I should probably purchase another Xeon W and add more GPUs. It’s getting really late—maybe I’ll stop soon. I need to check if this can handle the 18x multiplier and save it for tomorrow. I’ll finish what I was supposed to do and help my friend recover files from his broken HDD. This board seems capable of running over 2800 in the third channel, though Bloomfield appears to cap around that point. That’s good news—no need for a replacement right now. Impressive for a lower-end X58 board!
Makes sense, I didn't even know 3t was a thing. Always ran 2t. I believe 1t is better for performance, but it's very rare to get sticks that clock well with that, so it ends up being slower. Nice! That's already damn good for DDR3 on a regular board. IIRC a friend got some up to... 3200Mhz or higher I think, but that was on an LGA1150 ASRock XOC board with dedicated VRMs for the RAM DIMMs. If it's a BCLK limit, how does a new CPU help that? BCLK should be the northbridge, not CPU. Speaking of which, have you tried cooling that? My EVGA Classified boards have massive heatsinks on the northbridge, the ASUS Rampage III Extreme had some pretty beefy cooling for it as well, so it seems they can get quite hot and cause instability. Waterblocks for these boards usually cover the northbridge as well, it gets rather toasty. If it doesn't have a fan already, worth pointing a 40 or 60mm one at it IMO. That's the heatsink EVGA slapped on the X58 Classified SLI 3-Way and 4-Way northbridge: I believe this is my 3-Way which was missing the stock 40mm fan, thus the Noctua. My 4-Way had an EVGA fan.
this model doesn't show a significant performance boost over the second one, probably similar to other primaries. It seems like frequency will depend more on the secondary and tertiary parts than just this chip. The 3200 clock speed is likely around the lower side of 1150, so I expect around 3600+ with a decent CPU. Haswell offers strong DDR3 support and can reach 4000+ with certain chips, though X58A UD3 might struggle with stability above 200GHz unless it hits 220GHz. It could be my X58A being a sample, so I'll try it with another X58A to see if that helps. I hope RAM binning isn't an issue on this board since my ASUS P6X58DE is pretty unstable at higher speeds. If this other X58A has bad memory channels, it's a problem either way—bet above 220GHz though, because most CPUs should handle 250GHz with QPI slowmode if they're 32nm. But beyond that, it might be time to look for better CPUs.**