Hi,Contact ASRock support. Fan control disappeared on BIOS update for me as well and they provided me a beta bios that brought them back.
value 0 is lowest and sets to 30%It looks like the minimum possible duty cycle is 30%. I wish I could set lower in idle...
0x245A6 Form: Smart Fan Control, Form ID: 0x28EC {01 86 EC 28 9E 08}
0x245AC Subtitle: Smart Fan Duty Control {02 87 9F 08 00 00 00}
0x245B3 End {29 02}
0x245B5 Grayout If: {19 82}
0x245B7 Variable 0x22D equals 0x1 {12 06 2D 02 01 00}
0x245BD Setting: Smart Fan Duty 1, Variable: 0x1A4 {05 91 A1 08 AC 08 AE 28 01 00 A4 01 14 10 00 0A 00}
0x245CE Default: 8 Bit, Value: 0x0 {5B 06 00 00 00 00}
0x245D4 Option: 30 %, Value: 0x0 {09 07 AD 08 00 00 00}
0x245DB Option: 55 %, Value: 0x1 {09 07 AE 08 00 00 01}
0x245E2 Option: 60 %, Value: 0x2 {09 07 AF 08 00 00 02}
0x245E9 Option: 65 %, Value: 0x3 {09 07 B0 08 00 00 03}
0x245F0 Option: 70 %, Value: 0x4 {09 07 B1 08 00 00 04}
0x245F7 Option: 75 %, Value: 0x5 {09 07 B2 08 00 00 05}
0x245FE Option: 80 %, Value: 0x6 {09 07 B3 08 00 00 06}
0x24605 Option: 85 %, Value: 0x7 {09 07 B4 08 00 00 07}
0x2460C Option: 90 %, Value: 0x8 {09 07 B5 08 00 00 08}
0x24613 Option: 95 %, Value: 0x9 {09 07 B6 08 00 00 09}
0x2461A Option: 100 %, Value: 0xA {09 07 B7 08 00 00 0A}
0x24621 End of Options {29 02}
soic16I have the EPYCD8-2T (R32 which means 32MB for the BMC or BIOS (I don't know (probably both))). I need to buy the (soic) BMC chip and the (soic) BIOS. I bought a BIOS chip off ebay from netherlands (probably asrock), but where can I get the empty chips so that I can flash them myself. I've been waiting for about 3 weeks now. I need to test some CPUs (and I want to save the settings for each chip on a different IC).
- What are the chip types|brand|[serial number] (like do they have a Serial or Brand number on the chip or soic-8 or soic-14 or whatever)?
- Where do I get them from (if you suggest)?
Hey! sorry to necro an old comment, but I have the Asrock w680 board and am also noticing that the BMC is setting a lower threshold of 20% on the fans. Have you figured out a way around this?I have a server in my office that I can keep quiet with a windows task that is run every time I login or unlock the computer. I have a Supermicro 846 with SM fans except for the CPU fan, so when I login I sending the ssh command that keeps my CPU fan at max (1400 RPM) and the chassis fans as low as it can go (1300-1600RPM):
ipmitool raw 0x3a 0x01 0x64 0x01 0x01 0x01 0x01 0x01 0x01 0x01
When I log out it sends this command to return the chassis fans to auto:
ipmitool raw 0x3a 0x01 0x64 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Yesterday I saw there was a new BMC firmware (03.02.00), so I ignored the warning to not upgrade if I don't have a reason to and spent a few hours getting the new BMC to upgrade and be accessible over the web. It was a pain in the ass, and others have experienced the same problems.
I noticed that the new fan control commands were different, significantly that it seems that the lowest I can manually set the fans is 20%, any lower and I get an error. @Borromini above has a comment in his script that there's an error if it's below 20, which I confirmed in my own testing.
Well, 20% is a lot louder than 1%. Here are the commands I used to set the chassis fans to manual and as low as I could go:
ipmitool raw 0x3a 0xd8 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
ipmitool raw 0x3a 0xd6 0x64 0x14 0x14 0x14 0x14 0x14 0x14 0x14 0x14 0x14 0x14 0x14 0x14 0x14 0x14 0x14
To reset them to auto, I used
ipmitool raw 0x3a 0xdc
After a few hours of loud fans I flashed the 2.20 BMC back, I don't know if I'm missing something or they really did limit how low you could set the fans to 20%. Posting this here for posterity.
Necro'ing this thead because this IPMI fan control information is very obscure, so I'm adding a comment FBO.However, I do not know what that last 0x00 corresponds too. I think it's unused?Code:ipmitool raw 0x3a 0x01 CPU1_FAN1 0x00 REAR_FAN1 REAR_FAN2 FRNT_FAN1 FRNT_FAN2 FRNT_FAN3 FRNT_FAN4