Server Fans Never Slow Down After Speeding Up

I have a server motherboard in a large tower case with several hard disks installed. It’s basically a media server that serves over CIFS. I’m using the ‘sensors’ command on Linux to monitor the system temperatures. It typically runs around 70c, but if it gets a tough load (downloading several things, hashing the downloaded content) … Read more

Cooling Solution for CCTV Rack

I’ll do my best to provide a clear question. I’m not a network/server guy…just a young controls/systems engineer who knows enough to be dangerous 🙂 My company is working on a major controls upgrade for a jail. I was put in charge of upgrading their video surveillance system. Currently they have an all-analog system sitting … Read more

Random CPU and case fan speed up to maximum

Motherboard: ASRock EP2C602-4L/D16 RAM: Kingston KVR16R11D4K4/64 CPUs: Intel Xeon E5-2670 x2 CPU coolers: Noctua NH-U12DXi4 x2 Case fans: Noctua NF-F12 x6 I have had the system for about a month. I am running Proxmox on it and it is on 24/7. The CPU fans are set to adjust automatically in the BIOS based on temperature, … Read more

Server advice for a newbie [closed]

Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Server Fault. Closed 3 years ago. Improve this question I’m new to serverfault, and server computers in general, and I got a few questions. Forgive me, they’re quite basic, but I’d like … Read more

Upgrading CPUs for my HP G5 DL380 – will the cooling suffice?

Just a month ago or so, I bought my first rack server for some personal number crunching. It’s been great fun playing around with and I’m thinking about upgrading the CPUs to get more bang for the bucks ( and noise, lol ). Is it likely that my current heat sinks for my 2 x … Read more

Hardware Checks after Air Conditioning Failure

We had an overnight air conditioning failure. We discovered that the temperature in the server room had reached about 110-115°F (43-46°C). We powered off everything that hadn’t already and had the A/C fixed. Now that it’s fixed, I’m concerned of the damage done by the extended exposure to the high temperature. I’d like to run … Read more

Is it true that higher delta T (outsideT – insideT) will in HVAC systems will result in lower power usage?

I have been comparing our server room logs for power usage, compressor usage, and outside temperature and I’m not sure if something is wrong with my understanding how these systems work, or if something is wrong with our records. Hot day: +30C outside, ~50% compressor use, ~25 KW electricity use Cold day: -30C outside, ~50% … Read more