Maybe that's why they connected it to the upper fan header for the 1U version, making it user accessible.Interesting... Mine has the cooler connected to the upper fan header (by looking at the wire) and I'm having a hard time taking the motherboard from the case
Qotom Denverton fanless system with 4 SFP+
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Got my Q20342G9 1U up and running with proxmox but it idles at 20w from the wall. Seems on the high side. Anything I can do in BIOS to reduce this? I have 2x4gb mem, 2tb nvme (Hynix P31 gold), and a single ethernet port plugged in.
Btw, 2x32gb ECC 2666mhz sticks from ebay Mem-Store does not work on this platform. I bought Micron 2x32gb ECC 3200mhz instead.
Btw, 2x32gb ECC 2666mhz sticks from ebay Mem-Store does not work on this platform. I bought Micron 2x32gb ECC 3200mhz instead.
I haven't checked which BIOS version mine came with, but you can find the download link on their website.
This appears to be the latest one (check the Readme file to make sure):
Ok, I was finally able to run some tests on my 1U C3808 unit running pfSense+ 24.11. I know iperf3 isn't the best tool to test router performance but it's a good to measure throughput. pfSense is as tweaked as my knowledge can go. Not running any kind of IDS/IPS.
Running inter-vlan routing I was able to reach 19gb/s (which is the maximum I can get on a 2x10Gbps LAGG) and CPU usage is 35 to 40%.
Doing NAT I could only test at 10Gbps and I was able to reach 9.28Gbps sending, with cpu usage going all the way up to 100% and 8.3Gbps receiving with CPU usage around 80% which indicates that my iperf3 server was not able to handle the traffic somehow...
I'm not sure what kind of impact pfBlockerNG will have on performance but I'll try configuring it and testing again.
Running inter-vlan routing I was able to reach 19gb/s (which is the maximum I can get on a 2x10Gbps LAGG) and CPU usage is 35 to 40%.
Doing NAT I could only test at 10Gbps and I was able to reach 9.28Gbps sending, with cpu usage going all the way up to 100% and 8.3Gbps receiving with CPU usage around 80% which indicates that my iperf3 server was not able to handle the traffic somehow...
I'm not sure what kind of impact pfBlockerNG will have on performance but I'll try configuring it and testing again.
Put very thin heatsinks and a fan with variable speed control, look back through this forum for more details.
Just wonder, since this unit is running Denverton CPU. Would getting a relatively known brand ECC RAM that people have reported worked Synology NAS w/ Denverton CPU help? I means, would it have better chance to get it working in ECC? More specifically D4ECSO-2666-16G from Timetec, there are a lot of people report that this SK Hynix RAM are working well in Synology NAS.
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I am also looking for ECC memory. There are some cost-effective 2400MHz and 3200MHz options on Amazon (OWC and A-Tech brands). Do you have experience with these? Can you tell us which ECC memory did not work, so we know to avoid it?I think ECC memory compatibility is more dependent on the motherboard as a whole, not just the CPU. I've tried a couple different ECC modules they didn't work. I just ended up going with Micron/Crucual brand and 64gb worked flawless.
Edit regarding RAM size and CAS latency:
3200MHz modules are typically CL22. They can operate at a lower 2400MHz frequency, but the CAS latency remains 22. So native 2400MHz modules with their CL17 are faster. I think the answer is no, but will ask anyway: Do 2400MHz ECC modules get to 32GB in size? Basically, I'm looking for this, only 64GB (2x32GB).
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I'm actually thinking of trying this one (Timetec DDR4-2666 ECC). People are saying they work w/ Synology Denverton NAS and it seem to be using SK Hynix chips. I do have DS1819+ that I'm thinking about stealing its RAM(SK Hynix too if I remembered correctly) to test it once I get the unit (ordered but not here yet).
I would avoid budget off-brands like A-tech, OWC, Nemix, or mem-store. I tried saving a few bucks but it ended up costing me more since I'm now stuck with them and in the end still bought ones that are known to work. These "compatible" brands either won't POST at all, or if they do, ECC might not be working correctly. I've only tried 64gb ECC, no experience with other capacity so you might have better experience with smaller modules. Refer to this post by @ZPrime that had similar experience:
Not sure how if same applies for today's RAM, but back in the DDR3 days, I remember if you ran a lower speed than what's rated for, you can also tighten the timing to compensate. So if you bought 3200mhz and downclock it to 2400mhz, you might be able to run a lower CL, tRCD, tRP, and tRAS. But spending days to tweak and testing for stability to find optimal clock/timing isn't worth the hassle to me.
There are discontinued 32gb modules that are 2400mhz ECC ddr4 SODIMM from SK Hynix, Samsung, and Micron. But they're discontinued and you won't be able to find them. I've tried
. So I settled for 3200mhz ECC.I have just purchased the Q20331G9 unit. I currently have 1GB Centurylinnk fiber but hoping to upgrade to 2 or 3 GB Google soon. I currently have a mixed 1GB/2.5GB network.
Does it make sense to use the 10GB interfaces at all? If I hook 3 GB google fiber to the Qotom unit 10GB interface will it just send 3 GB over the 10GB interface or will I need a special tranceiver to negotiate down to the 3Gb speeds?
Thank you.
Does it make sense to use the 10GB interfaces at all? If I hook 3 GB google fiber to the Qotom unit 10GB interface will it just send 3 GB over the 10GB interface or will I need a special tranceiver to negotiate down to the 3Gb speeds?
Thank you.
@JDE1000, I don't have those kind of bandwidth but from previously research I have done I think you have to look at it as how does the data is coming in. If your internet is coming in via fiber and you are using their ONT as a modem then that ONT will dictate what form of connection you will be using. Some people will try to skip the ONT by replacing it w/ custom firmware PON SFP+. But, either way it will look like you will be using one SFP+ port for that. Unless your ONT has 10GB RJ45 port that can negotiate down to 2.5G then you could use one of the 2.5G RJ45 port and sacrifice some potential bandwidth.
Unless Google Fiber lets you connect directly via an SFP+, you need a 10GBaseT SFP+ and that will connect at 10 gigabits with Google's ONT assuming Google's ONT does 10GBaseT. Or 2.5/5 gigabits if your SFP+ supports it and Google's does too.
Keep in mind '3 gigabits' is not an Ethernet standard, it's just rate limiting on your ISP's equipment. Ethernet standards are 1/2.5/5/10 gigabits and that's what the actual equipment supports. If your ISP gives you an ONT with a 10 gigabit port to your equipment, that will run at 10 gigabits regardless of whether you pay for 50 megabit or 8 gigabit service.
I would note because I am dealing with this myself right now - 10GBaseT SFP+ are not officially standard-compliant, they are moody, etc. The one I have now, there's way too high error rate on the interface. I suspect the SFP+ is the problem and will be trying another one. People who have ISPs who supply SFP+s instead of separate ONT with only copper Ethernet ports are very lucky.
My plan is to also add spinning 4TB 2.5inch HDD and possibly 40mm fan to the 1U. Any one have good idea? I see there are vent on the side and I'm thinking about adding one or two 40mm Noctua fan(s) in there. And there are two route I could go with. One is using 12v fan and tap that directly to the integrated PSU and the other is to use 5v fan and hook that to the USB port that's on board. Both options should theoretically cool both the unit and the HDD I would put in there. What would be ideal?
PS: possibly get an adapter and hook it up to the system fan header on the CPU side?
PS: possibly get an adapter and hook it up to the system fan header on the CPU side?
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If you plan to add 10GbE devices to your network, like a NAS or a homelab server, then it makes sense to future-proof your ethernet switch. Router, Firewall, and an ISP fiber interface are a differnt story. You may want to look into a SFP HSGMII compatible ONT module, but fair warning before you decide to go this route: Cheap AliExpress ones had a high packet loss rate. They are not worth it IMO, and the ones that are worth it are quite expensive.
I ordered 2 Noctua NF-A4x20 5V fans and some 4-pin splitters (note that the CPU fan header is a micro 4-pin type). My plan is to mount them vertically between the 2.5" disks and the SFP+ ports, to get some airflow over those ports. Did not test them yet, so I cannot tell you if this would work.
Edit: The motherboard also has a SYS_FAN2 header on its back side, so I might connect the Noctua fans there.
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This is what in one of my plan for that SYS_FAN2 header on the CPU side, but I don't think it will fit. For the 1U unit, losing the PWM function isn't a big problem, so that's why I plan on the simpler USB or direct 12v solution as well. I don't know what I will do until I have the unit. But you could mount the FAN directly on the side between side cage and PSU using zip tie, at least that's my plan. The problem may be getting the air flow pass the SFP wall. Meaning if there is no HDD involve, one 40mm fan could be enough (mounting closer to the rear to avaid the SFP wall). But then again adding two 40mm fan could help cooling the SFP if using BASE-T SFP(which I don't plan on using).
I think all 4TB 2.5" HDDs are SMR (if you know of any that aren't, let me know...); what are you planning to do where an SMR HDD would be a good idea?
I happened to have an old Seagate ST4000LM016 lying round that I got from the USB enclosure. I'm pretty sure it's CMR, and plan to use it to store some IP Cam footage. So I'll be hosting a VM on the Qotom as an NVR. I ran the same test and compare the result to the one AnandTech tested (which confirmed CMR). My result is extremely similar, but slightly better. So, yea it's CMR drive. But if that does not work out, I could still utilize that SFF-8087 and get an external chassis w/ larger old CMR drive.
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