Crosshair VI Hero: UEFI build update thread

[Darth Ender]

Hello Darth Ender

I wouldn't sign, that cmd2t 1T is made for Single Ranked and 2T for Dual Ranked Ram.

Currently using 2x16GB Dual Ranked Dominator Platinum 3466 @3333. (14-14-14-35)
Just teststed it with 1T and 2T
Both settings working and no Test faild.
But 1T is faster in Benchmarks. I bet I wouldn't notice any differnce in real life computing.
1T seems stable on my system.

the norm is that if you have dual rank and it's having trouble running at the specs it should be able to run at, the first steps you take is setting cmd2t to 2 and start pushing procodt up.

there is some rank2 ram that can handle cmd2t=1 ...but most can't. just like how most can't even run at 3200 on ryzen systems even if they're rated for it but there are a small minority that can. So call it a rule of thumb then instead of a hard rule.

[FoxTech]

Thanks for explaining Mate!
Then I'm a lucky one

The Ram controller sit in the CPU, as far as I know. So with a quite nice CPU you gain higer Ram clocks.
Well, I haven't had AMD for years. Maybe this is complete nonsense I type.

[Syaoran]

2T, at least in my experience with this particular motherboard, is almost necessary with more than 16GB of RAM at speeds above 3466 for memory. The sweet spot for memory performance on this board (in terms of noticing things being super snappy in response) seems to kick in around 3466+. My two kits of PC43600C15 run at 1T around 3560 on a much earlier BIOS but when both kits are in, 2T is pretty much necessary for me to achieve stability.

So far, on 6003, I have had my system running 3501 for my 4X8GB sticks set at 2T running fine since Sunday. We shall see how long that lasts as some previous experiences with this board suggests it will suffer from Tourette's Syndrome after the third day and just outright refuse to boot at anything with a memory speed above 3200, regardless of the timings and voltage. Two BIOS's have been an exception to this experience for me but hopefully 6003 will be the third.

[sbakic]

2T, at least in my experience with this particular motherboard, is almost necessary with more than 16GB of RAM at speeds above 3466 for memory. The sweet spot for memory performance on this board (in terms of noticing things being super snappy in response) seems to kick in around 3466+. My two kits of PC43600C15 run at 1T around 3560 on a much earlier BIOS but when both kits are in, 2T is pretty much necessary for me to achieve stability.

So far, on 6003, I have had my system running 3501 for my 4X8GB sticks set at 2T running fine since Sunday. We shall see how long that lasts as some previous experiences with this board suggests it will suffer from Tourette's Syndrome after the third day and just outright refuse to boot at anything with a memory speed above 3200, regardless of the timings and voltage. Two BIOS's have been an exception to this experience for me but hopefully 6003 will be the third.

I have 3200CL14 at 1T with AIDA64 latency 70.5 and read, write and copy at ~49.8 GB/s it passed all stress tests but it failed to train ram from cold boot, not every time. I will try to set to 2T at boot training.

[Syaoran]

I have 3200CL14 at 1T with AIDA64 latency 70.5 and read, write and copy at ~49.8 GB/s it passed all stress tests but it failed to train ram from cold boot, not every time. I will try to set to 2T at boot training.

The cold boot issue could be back. We had a power outage here the other day due to some winter weather happening during the spring. :P It took powering on twice (only pressed the power button once) for my system to boot. I do have it set to 3 retries. I haven't actually tested to see if the cold boot issue is back. I just figured it might have been because my system lost power unexpectedly.

[Darth Ender]

Really, the fault to this is the standards body for DRAM, JEDEC i guess, that treats everything above 2667mhz@1.2v as overclocking ... when it's been pretty much industry standard for many years now to have ram well beyond this. Allowing companies like AMD and motherboard manufacturers and the ram makers themselves, to be able to advertise OC'd speeds but not really fully support them. And since it's overclocking, there's no real spec that hardware manufacturers can build to and expect everyone else to support the same.

It's BS. These companies get to have their cake and eat it too while the consumers are left with the lottery excuse when their expensive ram doesn't work at the advertised specs.

[HnS-CHH]

Nvm about pump not working.

Does anyone here own a 2700x? Can you bench occt default setting on stock setting and overclock setting.

Right now my is stock running 58c at occt within 5 min.

[Syaoran]

Nvm about pump not working.

Does anyone here own a 2700x? Can you bench occt default setting on stock setting and overclock setting.

Right now my is stock running 58c at occt within 5 min.

I don't, but temperatures vary based on BIOS version. Which BIOS version are you running? 6003 on my Ryzen 1700X is about 10 degrees lower over the 1XXX BIOS's.

[HnS-CHH]

I don't, but temperatures vary based on BIOS version. Which BIOS version are you running? 6003 on my Ryzen 1700X is about 10 degrees lower over the 1XXX BIOS's.

6003. Just in case I am running latest hwinfo non-beta.

[sbakic]

The cold boot issue could be back. We had a power outage here the other day due to some winter weather happening during the spring. :P It took powering on twice (only pressed the power button once) for my system to boot. I do have it set to 3 retries. I haven't actually tested to see if the cold boot issue is back. I just figured it might have been because my system lost power unexpectedly.

It looks like 3502 bios with clear memory : disabled made this cold boot bug gone.