Fans are the primary cooling devices used in most types of computers and are typically installed in the case and in the power supply of desktop machines and are also often installed directly on the CPU or GPU.

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Check that Laptop Fan is Functioning Correctly on Linux

I just completely disassembled and reassembled my Dell Studio 1555 laptop. I had to remove the hard drive, WLAN card, unplug optical drive, display connector, even the motherboard to get to the fan. ...
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2answers
200 views

Can magnetism from a custom cooling pad interfere with the laptop?

I made a custom cooling pad for my laptop and want to connect the fan below my laptop with the help of tape to the vent at the bottom of my laptop. Can the magnetic waves produced by the fans motor ...
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1answer
292 views

Cooling a computer cabinet [closed]

In general, how many air exchanges would be necessary to cool an enclosed computer cabinet? Is there a ratio? A constant? A rule of thumb? Something like 100CFM of airflow per CF?
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1answer
538 views

What does the fan speed sensor really report?

I have an overheating issue on my netbook (ASUS EeePC 1015PW), which I'm trying to troubleshoot. Using lm-sensors while overheating gave me this output : acpitz-virtual-0 Adapter: Virtual device ...
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1answer
594 views

What is a pump failure on a computer?

So I have this computer at my work that was giving me an error "Alert! Hard Drive fan failure." Well, I replaced that fan and then when I was bringing that computer back up, I received the following ...
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1answer
465 views

Antec 900 fan plugs are not compatible with PSU or motherboard

I have an Antec 900 case, which has two small fans in the front, a large fan on top, and an exhaust fan in the back, all of which have individual power cords/plugs. They look identical to the piece on ...
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0answers
159 views

Odd fan speed show in Speedfan

I just made some maintenance to my computer. The fans were replaced. When I check the temperature with Speedfan, there is an odd fan speed showing up. Should I check the fan? Or it is a bad ...
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1answer
424 views

Laptop fan buzzing sound [duplicate]

Possible Duplicate: Why is my computer fan so loud? 3 days ago my HP dv6 fan started making buzzing sound. At first it was un-noticable but yesterday It got a bit louder and my notebook ...
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2answers
548 views

Chassis fans and power LEDs still work in Hibernate

I have ASRock Z68 Extreme3 Gen3 motherboard recently updated to 2.20 BIOS version. OS is Windows 7 x64. The problem is after that update full hibernation (by that i mean full system power off) stopped ...
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1answer
1k views

Windows 7/ATI graphics: GPU fan speeds up when display goes into sleep mode

I am using Windows 7 Professional 64-bit with an ATI Radeon HD 4870 video card with latest drivers (Catalyst 12.4). In normal desktop Windows use, the fan of my video card powers down and is so quiet ...
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2answers
1k views

Laptop turns off after 20 minutes of use

My laptop a sony vaio VGN-NW11S http://www.trustedreviews.com/Sony-VAIO-VGN-NW11S-S---15-5in-Laptop_Laptop_review. Everytime i turn it on, in safe mode or not, if i try to open an application i.e. ...
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4answers
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PC not running for more than 15 minutes after cleaning CPU fan

I thought that my CPU fan was gathering too much dust. So I removed it (just the fan), cleaned it and re-attached it. Now my PC only runs for approximately 15 minutes, then the CPU shuts off. It ...
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1answer
4k views

Hardware issue: computer plays beep sounds at startup, and then turns off

Turns out that after moving, my computer got damaged somehow. I installed my computer 2 days ago. I didn't check the state of the hardware parts and turned the pc on recklessly, not realizing that the ...
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4answers
7k views

Why does the fan spin up to high speed momentarily when the computer is starting?

On many computers, when the computer is turned on (even before POST), the fan spins up to high speed momentarily, then settles down to normal operating speed. This appears to be normal, but why is ...
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3answers
2k views

How can I know I'm buying a heatsink that will work with my CPU?

How can I find out what CPU heatsink and fan will work for my system? If a system is shutting down after being used extensively for gaming or other intensive activities, I would assume it is over ...
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2answers
14k views

Should I connect my case fan to a pwr_fan or chassis_fan header?

My ASUS P8Z68-V PRO/GEN3 motherboard has the following fans: 2 x Chassis Fan connector(s) (1 x 4-pin, 1 x 3-pin) 2 x Power Fan connector(s) (3-pin) The fan cable connector has three pins (and it ...
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0answers
575 views

Speedfan won't automatically regulate

I used to have Speedfan regulating my fan speed automatically, but ever since I've reformatted, I can't get this to work. I've done the following: In Temperatures, I have only CPU checked with CPU ...
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1answer
102 views

If no cores are online in a CPU, it would be safe to turn off its fan?

I think the question is self explanatory: I have a server (running Linux) which has 2 CPUs with 2 cores each. I know how to turn off cores and fans pragmatically. If for example, I turn off both ...
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1answer
476 views

Video card is a little noisy. Coffee type grounds near the fan

I have a Palit Nvidia GTX-460 PCie card. Half the time it is a little noisy. A light rattle and a light squeak. I have taken it out and have made the following observations. The fan is not hitting ...
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2answers
501 views

Does a chassis fan DC12V 0.18a have higher RPM than one with DC12V 0.16a?

I am going to purchase a few chassis fans (12cm) for my computer and the salesperson told me that a fan with DC12V 0.18a has higher RPM than one with DC12v 0.16a. I don't know anything about ...
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How to determine why the fan is running on MacBook Air?

I have a MacBook Air with OS X Lion and the fan started running loudly. I presume it is because the system is overheating and would like to determine the cause. What tool can I use to see what is ...
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How can one identify the fan model and other fan specs within Linux?

I know I could disassemble my laptop to find this information, but I was curious if I could find it in the /dev or /proc directory, or from a shell command. There was no fan information in /proc/acpi ...
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785 views

Does “not use fan all the time” through BIOS reduces fan noise?

I wonder if there is a way to reduce the noise of the fan. I read that through BIOS you can make it work only when it is necessary. What other options do I have to reduce the noise?
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Windows 7 Goes Down, but Machine still Running, eg, Fans, CPU, etc

I have a weird problem that has me baffled. A few days ago, my wife reported that, when she went to run a program for our daughter on an alternate login, my machine was "off." I asked her if she ...
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1answer
816 views

Radeon HD3850 Fan Won't Respond

I bought a HD3850 256mb second hand. Didn't come with any drivers so I downloaded the Catalyst CC that AMD recommended but I've noticed that the fan doesn't respond to load. It just sits there idling, ...
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4answers
675 views

Which size fan should I put at the front of my case? 92mm or 120mm [closed]

I've made a new system, it has a 92mm exhaust fan at the upper rear. I have two fans here, one is 92mm, the other is 120mm. This will go on the lower front and will be the air intake. Which would be ...
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1answer
930 views

Flash causes Macbook Air to heat up and fans to spin

Any flash application results in a drastic increase in CPU temperature (50C->80C) on my Macbook Air, causing the fans to spin really fast. Is there any solution to this, such as an alternate flash ...
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How do I install rubber pins onto a case fan?

I have the following rubber pins with my new case fan: I'm not sure how to install these. They are obvious to install into the case, the rubber pulls easily into the screw hole and stays in place, ...
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4answers
703 views

Bad Heatsink in My Computer? [closed]

My computer gets extremely hot where the fan and heatsink are. The fan works, so I think the problem must be with the heatsink, even though that seems very unlikely, since it's passive. Thought I'd ...
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1answer
1k views

Samsung Series 7 Chronos Fan Runs Constantly on Ubuntu 11.10

First off, I'm a Linux Noob - I successfully installed it on an older laptop, so I went out and bought this Samsung series 7. After dual booting Ubuntu alongside Windows I noticed the fan would ...
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1answer
178 views

PC won't power on due to graphics card loop

One day when I decided to turn on my PC, something strange happened. All the fans were running, but I had a blank screen. I then heard my graphics card's (ATi 5770) fan go in to a loop, turning on for ...
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What is a long-term strategy to deal with CPU fan dust in my home office?

There are numerous discussions of CPU overheating and how sometimes this can be corrected by removing the dust from the CPU fan. I have read many of these, but I can't find anyone expressing a ...
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1answer
62 views

T-60 suddenly crashing. What is average heat readings?

My IBM t-60 is suddenly crashing. When I run speedfan I see that all laptop heat source are too hot. What is the average temperature that it should run at? EDIT based on response by ntw1103: Speedfan ...
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2answers
520 views

Thinkpad L412 Fan not working and some fn keys as well

I have a problem with my laptop which is following : The cooling system had completely stopped working Some hot keys doesn't respond anymore (brightness, sound) First of all, I was thinking about ...
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2answers
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Ubuntu/Toshiba Fan Speed Issue

I am using Ubuntu 11.10 AMD64 on my Toshiba laptop (L505D-S5965). After I boot into the OS, my fan works perfectly being mostly quiet. Recently, I noticed that whenever I resume from system ...
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1answer
918 views

Cooler does not shut down in standby

In some computers, when I put them to stand-by, they do not shut down their fan-based coolers. Even though they go stand-by (and can be waken up with the mouse), they just don't shut up. I have no ...
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3answers
382 views

Would this short circuit?

My computer case has a built in fan which uses a Molex 8981 connection for power, but before reaching the fan, the wires split to form another male molex connector. My problem is that if I was to ...
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1answer
1k views

iMac fan is constantly spinning

I recently left for vacation, and when I came back yesterday, my computer was behaving quite strangely. Now it will boot up fine, all is good, but the fan is loud, and constantly moving! This has ...
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3answers
2k views

Tricky workaround to power supply a GPU fan: is it safe?

My nVidia GeForce 8800GT had a serious problem with its stock cooling fan: it started to make strange noises and I later discovered that it was hitting the heat sink, because of an abnormal rotation ...
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2answers
294 views

Power supply does not silent after few seconds

I have a desktop computer that I intend to use as a Linux server. I assembled all components and the computer properly boots in Ubuntu, and works fine, however, the power supply fan does not turn down ...
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3answers
608 views

GPU overheating

I have an nVidia GTS250 that, in the last couple of months, has decided that it has a problem with newer games. Older games are fine, but anything made in the last couple of years will eventually make ...
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1answer
1k views

HP Pavilion DV4 laptop fan always running at high speed

A few days back I had a display problem with my HP Pavilion DV4 laptop. I took it to a service centre and they told me that some NVIDIA chip on the motherboard needed to be replaced to fix this. ...
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908 views

Fan on HP Pavillon DV5 always on, even with CPU idle

my laptop (HP Pavillon DV5 1110el) has a big problem. The fan is always on and very loud (I think maximum speed). For example, now the CPU temperature is just 40° but the fan is at maximum speed ...
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3answers
1k views

1U vs. 2U Rackmount HTPC Chassis?

I'm in the initial stages of planning out the HTPC/Media server I'll be building come the summer, and I've run into a bit of a conundrum. My rack currently has 1U left free, and part of the appeal of ...
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1answer
912 views

Fan on CPU makes strange cracking noise

I recently bought a new video card for my pc. It's a Nvidia Geforce GTX 560 Ti with dual fans on it. On this picture you can see: ...
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1answer
589 views

After upgrading Lenovo 3000 N200 Intel T2330 to T9500 CPU Fan stays on High Always

After upgrading Lenovo 3000 N200 Intel T2330 to T9500 CPU Fan stays on High Always. Running a dual Boot with Windows XP & 7. Stays high on both never decreases & CPU not hot, why & how do ...
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Noisy fan on ASRock 330

The cpu fan on my ASRock 330 has been making really horrible noises, and it's so close to the other heatsink (On some other component) that I can't remove it and fix it. I googled a bit and found ...
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1answer
2k views

my laptop's fan is loud, how to make it stop?

I have cleaned my laptop many times, and there is no dust inside. The temperatures the speedfan gives me are: HD0: 31 C TEMP1: 39 C CORE 0: 24 C CORE 1: 25 C When the 'TEMP1' goes over 40 C it ...
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1answer
150 views

What is better oil for oiling fans: grapeseed or refined? [duplicate]

Possible Duplicate: Can I use oil from kitchen for oiling my fans I want to oil my CPU fan, maybe case fan too (in future). But I have found only mineral oil in my home. I have grapeseed ...
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2answers
170 views

Computer works correctly but CPU fan won't run

I got a used pc from my job since a week. The motherboard is an Intel, model DDG965WH. CPU is Core2 quad. I installed Linux Mint on it. Everything's ok since a couple of days, but I just realized ...