3 ms·
you could try 6400 on memory synced if 6600 boots with 4 dimms which is a very good result. 6600 is into the territory of needing luck with IO die and then also
by Numerlor 2y ago
you could try 6400 on memory synced if 6600 boots with 4 dimms which is a very good result. 6600 is into the territory of needing luck with IO die and then also tuning all the voltages.
For the infinity fabric if you're trying to push it checking for performance regressions is a good idea as it delays and retransmits as a form of pseudo ecc when it detects an error. Same with memory if you're not using all custom timings as motherboards can set some very much not good timings if left on auto and sitting on the edge of stability
- bravetraveler 2y agoI appreciate the tips, will give it a try :) When speccing out this system/building it, I chased memory frequency as we can tell. Seeing 1:1 is potentially within reach, perhaps dropping down to 6400 is worthwhile. Thanks again, will give it a whirl! While I have chosen the EXPO profile, history has shown boards can't reliably read the (sub)timings... so I do it/apply those :P I try not to mess with those much, I don't really know the relationships between them.
- Numerlor 2y agoFor the most part it's usually best to just go lowest that's stable, there are some "rules" online but most of them are just random things someone came up with. There are a couple JEDEC ones but the memory controller will adjust to work with those or it'd just not work. A 1:2 sync usually starts being worth it above ~7200MTs but I don't know how viable that'd be with 4 dimms, at the very least it'd need tuning the various termination impedances