AniChatt wrote:
By the way guys use this bios 4008 it is working flawless for me and my FlareX Kit is absolutely at CL14 at default DOCP in 2X8GB mode with 1600X. However not so stable at 4x8GB default. I have not tweaked timing yet and I will post it.
Regarding the RGB mess, it is fixed and the cause was the driver corruption.
About using 4 dimms, you cant overclock near as far compared to 2 dimms, gives to much stress on the internal memory controller of the cpu.
Maximum achievable is 3333 mhz with 4 dimms, compared to 3600 mhz with 2 dimms.
You could experiment with command rate / geardown:
1T geardown disabled, would be amazed if you could get it stable past 3000 mhz
1T geardown enabled (is like 1.5T)
2T geardown disabled, more stable, you might achieve 3200 mhz cl14 with your ram and you can use uneven CL timings, like CL15.
try tweak all manual timings, as the ryzen dram calculator advises, gives much lower latencies then leaving it on auto
to only ones that did not work for me is
- trdrdscl 2 or 3, needs to be 4
- twrwrscal 2 or 3, needs to be 4
- my ram cant do trcdwr 16, so using e.g cl15-17-17-17, get no performance increase if I use cl15-17-15-15
im using this atm with:
Crucial Ballistix Elite 4x8GB DDR4-3466 - BLE2K8G4D34AEEAK
XMP 3466 16-18-18-36
(samsung B-die, but not the best ones, but they where cheap)
3266 mhz CL16-17-17-17 is also stable for met with Geardown enabled, 1T
3333 mhz stable-ish, can game with it fine but ussually gives me an error in prime stress testing after an hour or so
Orb79 wrote:
About using 4 dimms, you cant overclock near as far compared to 2 dimms, gives to much stress on the internal memory controller of the cpu.
Maximum achievable is 3333 mhz with 4 dimms, compared to 3600 mhz with 2 dimms.
You could experiment with command rate / geardown:
1T geardown disabled, would be amazed if you could get it stable past 3000 mhz
1T geardown enabled (is like 1.5T)
2T geardown disabled, more stable, you might achieve 3200 mhz cl14 with your ram and you can use uneven CL timings, like CL15.
try tweak all manual timings, as the ryzen dram calculator advises, gives much lower latencies then leaving it on auto
to only ones that did not work for me is
- trdrdscl 2 or 3, needs to be 4
- twrwrscal 2 or 3, needs to be 4
- my ram cant do trcdwr 16, so using e.g cl15-17-17-17, get no performance increase if I use cl15-17-15-15
im using this atm with:
Crucial Ballistix Elite 4x8GB DDR4-3466 - BLE2K8G4D34AEEAK
XMP 3466 16-18-18-36
(samsung B-die, but not the best ones, but they where cheap)
3266 mhz CL16-17-17-17 is also stable for met with Geardown enabled, 1T
3333 mhz stable-ish, can game with it fine but ussually gives me an error in prime stress testing after an hour or so
Really good info thanks man. Just to add the default DOCP is setting main latency values as per SPD of the FlareX kit. Now I know that the 4x4 config stresses out really the the IMC of the CPU so stability is also CPU dependent. I have not tweaked anything yet for RAM. Since I am using 1600x so I think PBO will not work for me. I have tested with 38.5x at 1.35v (-ve offset of 0.0250) works just fine but gonna increase to 39 and test soon. Using Ryzen balanced power plan and reduced idle cpu rate to 60% just for fun nothing else.
In this mobo the CPU temp by the CPU and CPU temp show by the Mobo is same unlike the older Strix B350F where the CPU temp shown by the mobo is always a bit lower than the actual shown by my CPU.
I will test with Ryzen DRAM calculator again in this new mobo and post you. To check stability why you are using prime? HCI memtest is a much better program for this and it detects error really fast. Try the dang wang version of the hcj memtest from g.skill forum. They also use it for their stability testing and run it for at least 350%+. It also does not generate lot of heat for the CPU.
