X370 Taichi and 1700X

Ken429 wrote: Dogmifier, I started to set the BIOS to Ultafast boot and then read the description in the BIOS and got cold feet. It seems to say that once set to Ultrafast the only way to get back into the BIOS setup is to Clear CMOS. Since I'm still playing with the BIOS settings I don't think I want to go there?!

Yeah, that's what it does...I was asking if you had that set, not to set it....

sorry for the misunderstanding...

Not sure why you're not going into UEFI if that's not set.

Ken429 wrote: I just edited my post while you were answering my original post. Taking ~19 seconds to get to the first BIOS screen is a symptom of a problem? I'll try the Fast Boot and see what happens.

I would say the post taking 19 seconds is (not correct, but correct for now) right...post is slow on these machines right now as far as I know..

maybe parsecs or wardog has better insight than I do..

Ken, question

did you set it to "Fast" or "Ultra fast" boot? If so, I don't think it will go into UEFI until you reset CMOS and try again.

As for the boot time, I think the AMD Post times are a bit slower than Intels...this may change as the platform matures...

The CPU temp I think stems from software not reading things correctly...tho again, I could be wrong...my temps and voltages jump all over using any software that monitors them

I don't have a taichi, but a gaming K4

I just assembled my first AMD based system! It consists of:
X370 Taichi MB BIOS Version 230
X1700 Ryzen Processor running at 3.8GHz
EVGA Memory 2X8GB DDR4 3000 1.35V Cas Latency 15
MSI GTX 560 TI Video Adapter
MasterLiquid Pro 280 AOI
Samsung 250GB 960 EVO NVMe M.2 Boot Device
Crucial 500 GB MX200
Seasonic 760XP Power Supply
Corsair 750D Case
Windows 10 Pro ver. 1703

I'm almost a very happy camper. The AMD system transcodes a test BluRay to MP4 in 41% less time than a 4790K running @ 4.6GHz. That's about what I expected based upon all the benchmark stuff on the internet.

Several things still aren't quite right:

ASRock's "Restart to UEFI" does not work - it boots right back to W10.

The Z97 Extreme/4790K system with the Samsung 960 EVO NVMe device boots to the Post Screen in ~6 seconds. The X370 Taichi/1700X system takes ~9 seconds to boot to the Post Screen. Both systems have the Samsung device in the Ultra M.2 slot. It almost seems like the Taichi BIOS is having trouble with something. I'm about ready to make an "old" Sandisk SSD the boot drive!

The CPU temperature is a bit of mystery - under full load on all threads for an extended period HWInfo64 says the maximum temperatures reached were 77.6 (Tctl) and 57.6 (Tcle) (the 20C anomaly?). Seems pretty low considering the CPU is clocked at 38 and using a Vcore of 1.28V. Either I have a very good chip or I'm not understanding what is going on. Most of the people posting on the Internet are using much higher voltages to get to 3.8GHz. This thing is very stable and seems like it wants to go faster @ 1.28V? I haven't spent much time trying to find what Vcore setting is the minimum for 3.8GHz but I've gone from 1.36V to 1.30V and now 1.28V and the CPU temperatures, if I can believe them, don't change that much?!