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Questions tagged [cooling]

22 questions
42
votes
8 answers

Server Room Temperature Control

We have a makeshift server room that contains a rack with half a dozen servers and some network equipment. The room is cooled by a dual-hose portable a/c unit that is vented into the attic. At this time the portable a/c unit can not keep up with the…
Brandon
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11
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2 answers

Cisco Catalyst 2960 Switches - Can I reverse the air flow?

I have some equipment that will be moved to a new datacenter soon. At the current datacenter, the switches are mounted in the back of the racks so the air flow for the switches is reverse in comparison to the rest of the equipment on the…
Cha0s
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10
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7 answers

Server corrosion, air conditioning and climate control

We made the unfortunate discovery that our servers in our in-office server room are rusting away. This came to light after the first one had failed. One obvious candidate is the AC unit, that something is wrong with its humidity regulation. So, I…
Halfgaar
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2 answers

Is there a best placement of hot hardware in a rack to maximize convection cooling for the whole rack?

To maximize convection cooling in a rack, does it make a difference whether the hottest items are at the top or bottom? If so, which produces the most cooling and why? Please limit answers to ones based on facts or industry-standard design…
sam
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2
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1 answer

Does the power consumed by an air conditioner adds to the total heat generation in a server room?

I have to size up the air conditioning in my server room. I have calculated a total load of all the power consuming equipment in my server room, i.e. servers, networking devices, SAN, lighting, UPS, and PDUs. Since the air conditioner also consumes…
Shreedhar Kant
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2
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4 answers

HP DL380p Fans run 100% as soon as OS Loads

Sounds like a 747 taking off. I have 2 exactly the same, bought used. Has P420i RAID controller, 64GB RAM, 3 500GB SSD, each in its own RAID0 array, and 2 - 2TB Seagate Firecuda hybrid drives in RAID1. Fans run quietly after startup while posting,…
jerryrig
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2 answers

Estimate power and cooling for server room

We are trying to determine the right power and cooling for a new server room which would be about 350 sq ft., our power is 220V. We are initially only planning to start with a single rack with potential of expanding upto 4 or 6. The rack would have…
jackie1100
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2
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0 answers

Poweredge 1950 iii SO LOUD with 8gb fb-dimm stick

I understand that the 1950 family is pretty notorious for the fan speed sound like a jet engine taking off. I just flashed the bios to the latest version, and now it can support my 8x8gb FB-DIMMS! Yay right? Well, after installing the ram, and of…
Patrick Carey
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1
vote
0 answers

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…
user3280964
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1 answer

Where to find high/critical temperatures for GPU?

I am looking for a database that has high and critical temperatures listed for CPU's and GPU's, or a tool that will be able to extract this information. Google is filled with 'my gpu runs at 63C, is it too hot?' and long pointless discussions that…
Dimi
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1
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1 answer

Has anyone purchased an AcoustiRack?

Looking for first hand experience with an AcoustiRack. Noise is fairly important. The main concern is heat. The unit will have a few Dell servers r510, r620, VRTX fully loaded, 2 APC UPS 2200va. Any other suggestions for a rack that can house…
code
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1
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1 answer

In a 42U server rack with 12 very hot 2U-nodes, what is a good configuration? All nodes at the top or bottom?

Currently we cannot fill the 19" rack completely. So we have 12 GPU nodes, 2U each. The 42U rack is connected to a cooling unit that blows cold air in front of the computers, sucking in hot air from behind. As far as I understood this thread, the…
Pavel
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Replacement fan for a T&T 6020H12S NF1 (0.16A/12VDC/3 wire)

I have a DVR unit that is over 10 years old and the cooling fan is going out. The current cooling fan is a T&T 6020H12S NF1 (0.16A/12VDC/3 wire). I cannot find this fan at all searching the internet, a couple similar ones but they are not the same…
mt programmer
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0
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0 answers

Increasing chassis fan speeds?

I have a rack-type server whose motherboard is ASUS Z11PG-D16 Series (according to lshw). ipmitool reports 7 front fans, and I would like to increase their speeds. Is there any way to do that? Thank you.
noname
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0
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1 answer

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…
Bailey Parker
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