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  Topic Review (Newest First)
10-17-2019 07:13 AM
Myzrael
Quote: Originally Posted by laxu View Post
Has anyone ran into this weird issue?

After some gaming the fan connected to the SYS_FAN4 header seems to get stuck at 100%. Restarting the machine fixes this. Using F42b BIOS with a 3700X.

The fan in question is set to manual in BIOS and to only go to 100% in extreme temp situations which just don't occur. Still occurs on normal or silent profile. I have tried connecting different fans to it and it happens with all of them, just on this specific fan header.
I don't remember if it happens with SYS_FAN4 header, but i have a strange issue with fans too. From time to time, just after the post, the fan connected to that particular header (i'll check if it's SYS_FAN4) stops, it's like the header isn't pumping enough juice to the fan. Happens with any of my fans (all noctuas, different sizes). Happens rarely on latest bios, was more frequent on older bioses.
I suspect it's a bios bug of some sort. I have a custom fan curve, the minimum speed i've set is way above the min supported by my fans, so that's not the problem.
There could be a bug involving that header (or fan headers in general). I'll let you know if it's SYS_FAN4 for me too.

edit: if i reboot, enter bios and save, without touching anything, the problem fixes by itself, supporting the idea that's a bios bug
10-17-2019 03:16 AM
laxu Has anyone ran into this weird issue?

After some gaming the fan connected to the SYS_FAN4 header seems to get stuck at 100%. Restarting the machine fixes this. Using F42b BIOS with a 3700X.

The fan in question is set to manual in BIOS and to only go to 100% in extreme temp situations which just don't occur. Still occurs on normal or silent profile. I have tried connecting different fans to it and it happens with all of them, just on this specific fan header.
10-10-2019 07:02 AM
Fastie
Quote: Originally Posted by AlphaC View Post
Was it an SOC voltage issue for 3600C14? I wish I could help out more with Ryzen 3rd gen stuff but the current pricing of R9 3900X is still more than retail and Microcenter hasn't received any in stock (my preferred supplier).
I tried setting SOC between 1 and 1.125 with no difference at all so it seemed like that didn't affect the stability issue. Only way for me to "fix" it was to either increase DRAM Voltage to 1.42 or increase timings/lower the multiplier (3533mhz for example).

I also tried LLC at high/turbo/extreme with no difference in behaviour because at first I thought it was maybe caused by droop.

Here's my current settings that runs the kit completly stable, only thing I've touched is setting dram voltage to 1.42. It runs a pretty high tRFC but I havent bothered with manual timings yet.

Edit: Decided to set the timings manually with help from the DRAM calculator, 3600 Safe settings + the Neo kit xmp timings. Stable so far. Still +.2 mV.
10-08-2019 02:40 PM
AlphaC Was it an SOC voltage issue for 3600C14? I wish I could help out more with Ryzen 3rd gen stuff but the current pricing of R9 3900X is still more than retail and Microcenter hasn't received any in stock (my preferred supplier).
10-08-2019 03:32 AM
Fastie
Quote: Originally Posted by gamervivek View Post
Is it 2x8GB or 2x16GB kit?
2x8GB kit.
10-06-2019 09:35 PM
gamervivek
Quote: Originally Posted by Maracus View Post
So after trying multiple DRAM Calculator settings and versions I'm ready to pull out 16GB RAM and give that a shot. There's really is some strange things going on once i go over 1800mhz IF, take the picture for example. So both AMD CBS and Overclocking settings set to 1867mhz Infinity Fabric clocks and the divider Mem ULCK==FLCK 1, Rysen master shows "coupled" in these setting I was actually using the x570 chipset Safe recommendations for memory( Trust me I've tried them all) RttPArk shows RZQ/1 when I had set it to 5 in the bios.

Look at the memory read/write/copy and latency and the snippet of HWINFO showing, yep thats right the memory clock was actually ramping up and down now to how true that is im not sure but I watched it for several minutes.

Anyhow thought I'd share this because it seem crazy, but I shall keep trying to push over the 1800 IF, maybe ill drop out 16GB ram and see if that helps, either that or I have a bogus chip.
Try disabling the power saving feature for RAM.

Quote: Originally Posted by Fastie View Post
Recently bought a kit of 3600 CL14 @ 1.4v from Gskills new Trident Z Neo lineup. I'm here to tell you all that the XMP on those kits are NOT stable with an X470 Gaming 7 Wifi (f42b) & 3800X combo. I returned one kit and bought another - same with both kits. At 1.4v that the xmp sets - it is not stable. The kit runs stable at 1.42v however so it's not a dealbreaker.
Is it 2x8GB or 2x16GB kit?
10-05-2019 03:33 PM
Fastie Recently bought a kit of 3600 CL14 @ 1.4v from Gskills new Trident Z Neo lineup. I'm here to tell you all that the XMP on those kits are NOT stable with an X470 Gaming 7 Wifi (f42b) & 3800X combo. I returned one kit and bought another - same with both kits. At 1.4v that the xmp sets - it is not stable. The kit runs stable at 1.42v however so it's not a dealbreaker.

Edit: 2x8Gb kit (F4-3600C14D-16GTZN).
10-03-2019 01:43 PM
tsamolotoff Here's modded f42b:

- Enabled chipset spread spectrum control (not sure if it does anything, as bclk OC worked without disabling this)
- Enabled bgs alt/interleaving/other settings AMD decided to keep away from us

https://yadi.sk/d/i4KlA3ZXbiQfcg
10-02-2019 09:27 PM
Maracus So after trying multiple DRAM Calculator settings and versions I'm ready to pull out 16GB RAM and give that a shot. There's really is some strange things going on once i go over 1800mhz IF, take the picture for example. So both AMD CBS and Overclocking settings set to 1867mhz Infinity Fabric clocks and the divider Mem ULCK==FLCK 1, Rysen master shows "coupled" in these setting I was actually using the x570 chipset Safe recommendations for memory( Trust me I've tried them all) RttPArk shows RZQ/1 when I had set it to 5 in the bios.

Look at the memory read/write/copy and latency and the snippet of HWINFO showing, yep thats right the memory clock was actually ramping up and down now to how true that is im not sure but I watched it for several minutes.

Anyhow thought I'd share this because it seem crazy, but I shall keep trying to push over the 1800 IF, maybe ill drop out 16GB ram and see if that helps, either that or I have a bogus chip.
10-01-2019 11:14 AM
Whatisthisfor
Quote: Originally Posted by tsamolotoff View Post
@GBT-MatthewH Also, I'm sure all of us would appreciate if the profiles were cross-version compatible - it's a pain to re-do everything each time I update the bios (and I have three different kits of ram that I periodically test)
Yeah i agree too to that.
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