05-21-2020 12:58 AM
12-27-2020 05:03 AM
Braegnok wrote:
This board will take any value I put in on any timing and not crash at re-start, it will boot Windows every time, or go to F1,.. it's crazy.
Lowering tRFC from 367 only reduces Read/Write/Copy & raises Latency, Default is 734 so I settled on 1/2 that and called it good, as I have tried 300 up to 400.
Lowering tWTR L/S I leave both in Auto while adjusting tWRRD sg/dg, and can go 26/22 and 6/2 stable but reduces Copy and raises Latency, so settled on 29/25 & 8/4.
CAS Write Latency (tCWL) is strange on this board it should be same as Primary (tCL) unless that is odd #, like 17 than rule is change 1-lower to 16. But like I said this board is strange and my tCL is 16 so setting tCWL on 16 will cause issues while adjusting other values, so I leave it in Auto while adjusting than set it when finished. And this crazy board does not like an even #,.. in Auto it will run 15 till I get really tight on other settings than change to 13 but generally it likes 15, so I settle for that, as I have tried 16, 15, 14, 13, and 15 works best, vary odd indeed.
Lowering tCKE seems to have no effect on anything, I have tried 8, 6, 4, and stable at all, and Read, Write, Copy, and Latency stay the same, so I settle at 6, as I think running a lower # 4 might put more stress on memory controller for no gain.
12-30-2020 11:09 AM
Braegnok wrote:
BIOS 1003 is solid on Maximus Extreme XII board.
Loading my old 5.3 all core profile and running Prime95 now,..
12-23-2020 03:56 AM
12-23-2020 08:50 AM
12-23-2020 10:45 AM
12-24-2020 11:10 AM
12-27-2020 07:10 AM
12-29-2020 02:24 PM
martine-dee wrote:
So, my new settings are in. Nothing spectacular, and I override the CPU settings with XTU anyway.
@BloodBaron ^ up there. I compute the DRAM voltage by stretching the range 2133 MHz - 4000 MHz linearly to the 1.2 - 1.5 Volts. So, X MHz would mean:
1.2 + (X - 2133) / (4000 - 2133) * (1.5-1.2)
Volts.
@Braegnok touche, that is impressive for the kit. Not sure if rasising DRAM RAS# to CAS# Delay from 15 to 17 (vs. my setup) did something there. I might get that AIDA64 thing at some point, to compare the latency, and play better with the RAM settings. Tho, it looks like a subscription software model, which I don't endorse or support for plainly checking RAM latency every now and then. I am not that much of a large customer.
12-30-2020 06:03 AM
Braegnok wrote:
I generally run in default settings with memory @ 3600MHz tuned instead of using XMP.
Blue Room run @ default settings. http://www.3dmark.com/vrpbr/96478
You will enjoy tuning your memory and checking results with AIDA64, it is a nice way to get a bit more performance, confirming results.
I'm testing another 3600MHz G.SKILL kit, F4-3600C14D-32GTRS it's a 2x16GB kit, I disabled DIMM0 A, B and will see how 2x16 bars work with the two unused DIMM slots disabled.