Supermicro H13SSL-N and fans oscillating between low and high speed

[mattlach]

For what it's worth, review this thread and overview:

https://forums.servethehome.com/index.php?resources/supermicro-x9-x10-x11-fan-speed-control.20/

I was able to lower the fan rpm thresholds in the BMC using ipmitool from the command line on my old X9DRI-F to end this problem once and for all.

I imagine it likely works similarly on the H13 series, as long as that board has IPMI

 

[autoturk]

do you have any idle power measurements on the supermicro board with the 9334 QS chip? I'm considering getting one myself.

thanks!

 

[RolloZ170]

do you have any idle power measurements on the supermicro board with the 9334 QS chip? I'm considering getting one myself.

AC voltage ? how many drives ? how many RAM and type of RAM ?
what is IDLE for you ? don't do that, you can only be disappointed because others always have lower values...
silicon lottery...

 

[autoturk]

AC voltage ? how many drives ? how many RAM and type of RAM ?
what is IDLE for you ? don't do that, you can only be disappointed because others always have lower values...
silicon lottery...

understand all of that, just trying to get a sense of order of magnitude. Ie.: is it 10 watts or 250 watts?

 

[RolloZ170]

understand all of that, just trying to get a sense of order of magnitude. Ie.: is it 10 watts or 250 watts?

10W is impossible, the IO DIE draws min. 40W. can be 400Watts, depends on what devices you have apart from Mobo/CPU/RAM/PSU.
if slow reaction of threadwork is not a problem you can reduce idle power, depends on your workload.
there are many threads about this.

 

[sand]

iirc when i measured mine with processor, 2080ti, 6 sticks of ddr5, and 1000w gold consumer power supply and
at stock clocks it was pulling 100-120watts at idle when not active.

 

[autoturk]

iirc when i measured mine with processor, 2080ti, 6 sticks of ddr5, and 1000w gold consumer power supply and
at stock clocks it was pulling 100-120watts at idle when not active.

Thanks! And this is with the 9334 QS? No issues to report in your usage so far?

 

[sand]

I haven't had any issues. I got the GIGABYTE MZ33-AR0 AMD Genoa EPYC 9334 QS from seller kuaka02(657).
I'd probably get a different mobo if i did it again. It's layout is horrible as you have to use risers on the pcie, and you basically can't use the extra DIMM slots unless you severely underclock the ram. The board is packed with features though.

 

[ServerSemi]

I haven't had any issues. I got the GIGABYTE MZ33-AR0 AMD Genoa EPYC 9334 QS from seller kuaka02(657).
I'd probably get a different mobo if i did it again. It's layout is horrible as you have to use risers on the pcie, and you basically can't use the extra DIMM slots unless you severely underclock the ram. The board is packed with features though.

Wait so you can’t run ddr5 4800 when populating all 24 slots?

 

[sand]

if you're careful you can do 4000, if not it is limited to 3600 when all 24 are populated. It's listed in the manual in the memory population table section. https://download.gigabyte.com/FileL...e_v1.0.pdf?v=ea0fb14d4ff8394cbf0e78e96fe4e6b9

motherboard and processor has been rock solid so far

 

[michel333]

if you're careful you can do 4000, if not it is limited to 3600 when all 24 are populated. It's listed in the manual in the memory population table section. https://download.gigabyte.com/FileL...e_v1.0.pdf?v=ea0fb14d4ff8394cbf0e78e96fe4e6b9

motherboard and processor has been rock solid so far

How much you paid for the CPU and for the motherboard?

 

[sand]

paid 2k one year ago for cpu+motherboard combo. I imagine it is much cheaper now.

 

[michel333]

I bought the same 9434 CPU 100-000000897-03 with the tyan s8050 motherboard. Normally should boost to 3.6 all cores, but it doesn't, it stays at base frequency 2.5 GHz max, that is base clock. In ipmi it shows max frequency clock 3.6 GHz, so my guess is that because I updated to last bios and last Agesa version which doesn't allow boost clocks for qs cpus?! Can it be this the cause, the latest Agesa version ?
I tested yesterday under Windows server, i can try installing Linux or W11..
Also I am thinking to downgrade Bios to the second or the first version...
Any ideas about this problem? Thanks!
Or maybe I need to add a second power CPU cable?!

 

[mattlach]

I bought the same 9434 CPU 100-000000897-03 with the tyan s8050 motherboard. Normally should boost to 3.6 all cores, but it doesn't, it stays at base frequency 2.5 GHz max, that is base clock. In ipmi it shows max frequency clock 3.6 GHz, so my guess is that because I updated to last bios and last Agesa version which doesn't allow boost clocks for qs cpus?! Can it be this the cause, the latest Agesa version ?
I tested yesterday under Windows server, i can try installing Linux or W11..
Also I am thinking to downgrade Bios to the second or the first version...
Any ideas about this problem? Thanks!

I think this might deserve its own thread. You'll probably get more attention on it if it isn't buried at the bottom of a thread about Supermicro Fan control.

Or maybe I need to add a second power CPU cable?!

I have absolutely no experience with Tyan motherboards, but if a motherboard has more than one 8 pin 12v (EPS) CPU power connector, it is generally a good idea to connect them all. Just because it will start up with only one connected doesn't mean the board isn't doing something to try to reduce power use if it detects it isn't plugged in.

 

[michel333]

I think this might deserve its own thread. You'll probably get more attention on it if it isn't buried at the bottom of a thread about Supermicro Fan control.



I have absolutely no experience with Tyan motherboards, but if a motherboard has more than one 8 pin 12v (EPS) CPU power connector, it is generally a good idea to connect them all. Just because it will start up with only one connected doesn't mean the board isn't doing something to try to reduce power use if it detects it isn't plugged in.

Thanks for your reply!
Actually I tried Ubuntu 22.04 and all is working well, the CPU boost all cores to 3.5 - 3.55 GHz...so maybe it is about windows server 2019 version!? I didn't tested with W10 or W11 yet!
These Genoa CPUs are amazing...they run so cool! It is my first Genoa CPU build.

 

[vau1ter]

Can someone run memory bandwidth test for 9334 QS - it's 4 ccds but should have 2 qmi lanes per ccd - wanted to see how that compares to other Genoa CPUs with 8 ccds in terms of bandwidth on full 12 channels