yupop
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Posts posted by yupop
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4 hours ago, mgutt said:
That's typically ASRock. On some Asrock boards you can only choose C6. It seems ASRock made an internal decision to limit C-States on all their boards to reduce driver issues / support requests. Because some bad hardware drivers work in for example C3, but crash on C8 and maybe the customers than ask ASRock for support although it's because of a bad driver of a PCIe card of a different manufacturer. Finally it means for us not to buy any ASRock products.
That's the kind of thing their support should be telling me. I don't mind if that is this case it would just be nice to know so I don't waste my time with it further.
I'll give Asrock a miss next time, but will also be checking for that sort of thing no matter the brand.
Thanks for the explanation.
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12 hours ago, mgutt said:
Maybe you should ask how to reach C8 and if this state is visible as a setting in the BIOS, ask why it is offered, although it's not working.
Well damn, they are being very misleading.
I've emailed them back. It will be interesting to see what they come up with next.
To be fair to them, the BIOS does not give any visable indication that C6, C8, or C10 can be achieved. The option is simply 'enable' or 'disable' pkg C-States. But it would just be nice to know what the issue is exactly so I can avoid it in the future. Maybe next time check the manual out ahead of time and if the BIOS doesn't give specific C8/C10 options, don't buy it.
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On 9/2/2023 at 6:34 PM, mgutt said:
I bet they will answer you with the hint to use the aspm off Kernel option (two other users already quoted this). Their support is incompetent. 😒
Not exactly.
Firstly they said that I should turn my C-State package on in the BIOS (even though I already told them I did). I then emailed all the screenshots I posted here to them. They emailed again and said that the C-States work on exactly the same setup (except on windows) for them and they posted a screenshot to prove so.
When I looked at the screenshot however I could see they were only getting c2 and c3. I point this out to them and then got back the following reply
QuoteRegarding your question, to get to C6, C8 and C10 should enable modern standby.
The motherboard does not support modern standby.
I checked out modern standby and according to this website it is indeed required
QuoteModern Standby is a platform state. On display time out the OS requests the processor to enter package C10 and platform devices at RTD3 (or disabled) in order to attain low power in idle. Modern Standby requires proper BIOS and OS configuration.
So, I think this time they were helpful and I would advise anyone looking for a low power board to make sure that it is modern standby compatible.
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Tried the live usb just now with the nvme drive removed. No change. Asrock B660M-ITX/ac is definitely a no go for a low power system. I've contacted Asrock support and if they come back with anything useful I'll post here.
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56 minutes ago, mgutt said:
I say that's the case. Those things happen often with LGA1700 Setups:
- ASRock Boards reach bad C-States
- using the CPU M.2 Slot causes bad C-States
- using the CPU PCIe Slot causes bad C-States
Your PSU will have a bad efficiency at low loads, but does not influence C-States.
Ok Thanks, not what I wanted to hear but was prepared for it. I'm going to try running it with a live usb without the m2 drive connected and see what happens.
Do you know of any board, preferably ITX, that would work (regarding cstates) with the i3-12100? and what brand motherboard is usally the best?
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Hi there,
I’m another one of those poor souls who can’t get their pkg c-states any higher than C3. Here’s my setup:
Motherboard: Asrock B660M-ITX/ac
CPU: i3-12100
NVME: Samsung 970 EVO 500Gb
RAM: 1 x Kingston Value RAM 16Gb 3200
PSU: Silverstone Strider 550W 80+ Gold ST55F-G
I do also have a 6TB Ironwolf HDD as well, but at the moment I have it unplugged. Also unplugged are my front panel USBs, front audio ports and a case fan. I’m currently running Ubuntu 22.04 LTS Server with kernel 6.2.0-31-generic. This is a completely fresh install, so far I have only setup ssh, ufw, powertop, and turbostat.
I believe I have setup my BIOS correctly, it is also updated to latest release. C-States and APSM are all enabled, along with SATA Aggressive Link Power. Intel turbo boost has been disabled, along with Audio, RGB LEDS, Intel Ethernet I219-V. WAN device is still enabled as this is what I am using at the moment to connect to my network but I have tried with wifi disabled and LAN enabled and there was no difference. I even tried with both disabled, again no difference.
When running powertop I can get no better than C3. When I run powertop with auto-tune there is no difference. My governor is set to powersave.
I’ve been measuring my power use at the wall and I am getting 19watts without the HDD and 27 with.
Here is a screenshot of my powertop
Here is a screen shot of my APSM status
Here are my BIOS photos
Questions:
- Does there appear to be anything wrong with my setup?
- My PSU is old, could it be preventing the higher C-States?
- Is perhaps powertop not registering the higher C-States?
- If powertop is not registering the C-States correctly and I am actually at say C6 what would explain the high power use. The old PSU? Or the mobo is just crap?
- If the PSU is a problem what PSUs are currently recommended. The Corsair RM550x (2021) seems to be no longer available.
- If I’m just unlucky and have a crap mobo what Itx 12th gen boards are recommended
Thanks, and appreciate the help.
Reduce power consumption with powertop
in User Customizations
Posted
Finally an honest reply from Asrock