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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My computer is loud: How do I tell which fan is the issue?

On my new computer, my fan(s) is/are plain LOUD! Using SpeedFan, I find that my temps are all under 32 degrees C under my normal use (IDK how accurate that is but the CPU itself says 27 C). The fan ...
24
votes
1answer
77k views

What is a normal/safe temperature for an i7 2600K CPU? [closed]

I just completed my first build, and while I was finagling around in the BIOS I noticed, with some concern, that my CPU was sitting around 60 °C. Even when I set the maximum temperature to ...
19
votes
11answers
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How can I set the fan speed to 100% on a laptop?

I recently purchased a HP Pavilion dv7-4031. When it's cool, it works smoothly and efficiently. However when CPU and GPU temperatures reach 60c and above, the PC starts freezing up and stuttering. I ...
15
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4answers
1k views

Buying A Computer “Case” Fan… Does It Always Run At 100% Unless Told Otherwise?

What happens if I do not plug it into the motherboard and it does not have a switch? I have seen fans before with an "off/low/high" switch that allows you to manually set their speed. I have seen ...
13
votes
6answers
1k views

In which direction should an extra case fan be fixed? [duplicate]

Possible Duplicate: Optimal Fan Placement and Direction for Air-Cooling a Computer This may sound dumb but this is a genuine question. I just bought an extra fan for the case and installed ...
12
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7answers
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Optimal Fan Placement and Direction for Air-Cooling a Computer

My current computer has always run unusually hot no matter what steps I have taken such as: lots of fans—including four 120mms; thermal grease—both generic and Arctic Silver V; placement of the ...
11
votes
1answer
598 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 ...
10
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3answers
5k views

should case fans blow air into or out of the case

Well there's not really much more to ask than the title, so which way should fans blow?
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4answers
2k views

Is it normal for a Dell Inspiron 530 to have is fan to spin up 3 times before it POSTS?

I picked up an used Dell 530 desktop. It seems to work, but it has an odd pattern of powering up the case fan (which might be faulty - it sounds like a jet engine) 3 times, while blinking the power ...
10
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1answer
301 views

Are two fans at half rpm always more silent that one fan at full rpm?

I am new to silent pc building so if I am making some lame assumptions please correct me. For example this is claimed properties of Noctua NF-S12-1200 fan. airflow noise 1200 rpm ...
10
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5answers
2k views

Why does my fan run high when computer is very cold

On very cold days, when I first turn my computer on, the fan runs on its highest setting for 20 seconds. On this boot, the computer responds much more slowly than usual. I have to reboot after the ...
8
votes
2answers
13k views

Why can't I control the speed of my CPU fan?

I bought a new computer with an ASRock H61M motherboard and XILENCE ICEBREAKER 64 Pro PWM CPU FAN. The problem is that I can't control the speed of the FAN. I tried settings in the BIOS and with ...
8
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8answers
523 views

Making an old computer quieter

I have an old Athlon XP computer that I've been using as a Smoothie Router for about 3 years now, after my first Smoothie router (a Pentium 2 266Mhz) died. One of the most aggravating things about ...
8
votes
6answers
1k views

CPU usage shoots to ~50% and stays there until suspended

This is the Windows Vista problem, seen, I think, mostly on dual processor laptops, where % CPU suddenly shoots to about 45% and stays there. Once this has happened, % CPU will never return to normal ...
8
votes
1answer
339 views

SMD transistor on motherboard is blown after a big spark; case fan no longer works

So I installed a new fan and upon turning on the computer there was a huge spark with loud bang. Everything stopped working until I unplugged power from motherboard. Now upon boot, computer says one ...
7
votes
3answers
2k views

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 ...
7
votes
2answers
11k views

Utility to manipulate speed of fan in Windows 7

I know Speedfan does monitor the CPU temperature, but it doesn't have the option to increase the speed manually. I used to have a programme in MAC OS which does that, but is there one for windows 7?
7
votes
3answers
5k views

CPU temperature too high but fan not running at max speed

I think I am having some problem with processor fan... it never runs on full speed event though my processor temperature is going so high. I am using HWMonitor (also speedfan) to record temperatures ...
6
votes
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 ...
6
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5answers
2k views

How can I make my desktop PC cooler and quieter?

I own a three year-old HP Pavilion Elite housed beneath my desk. Last week, for the first time I opened the case of my computer and thoroughly cleaned the insides. Since then the computer runs ...
6
votes
5answers
7k views

Is the exhaust fan necessary?

On my new PC, the component making the most noise is the rear exhaust fan on my case (it is the only exhaust fan in my PC). I tried to disconnect it and watched temperatures in SpeedFan and CPU was ...
6
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6answers
30k views

Is a CPU fan speed of 3590 RPMs normal?

Ant pointed me to SpeedFan in this stackoverflow question. I downloaded SpeedFan and it reports that my CPU temperature peaks at about 73C which seems to be normal according to this chart (although ...
5
votes
5answers
6k views

Could I replace a stock PSU fan with a more quiet one?

I have a cheap 450W PSU with an exhaust fan at the rear. This fan, however, is very loud. Is it a good idea to replace the stock PSU fan with a quiet fan with similar airflow? The PSU fan is ...
5
votes
3answers
12k views

Does the fan go on the bottom or top of the power supply?

Which direction should I install the corsair tx 750 psu? Should the fan go on the bottom or top? It seems the fan should be on the bottom of the case correct? Update I have a antec P183 case, so ...
5
votes
4answers
1k views

Should a disconnected CPU fan spin freely if I spin it with my finger?

I have an Arctic Freezer 7 Pro CPU cooler that stopped working yesterday after just a few months of use. It doesn't appear to be too dusty, but the fan just won't spin. In trying to figure out what's ...
5
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7answers
9k views

Laptop Overheating. Is there a way to cool it?

I have a laptop that's running on the following: MSI MS-1634X motherboard AMD Turion X2 TL-66 CPU ATI Mobility Radeon HD2600 It keeps overheating, especially when I do something more CPU and ...
5
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2answers
3k views

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 ...
5
votes
1answer
440 views

How fast will a fan run on Molex? [duplicate]

Possible Duplicate: Buying A Computer “Case” Fan… Does It Always Run At 100% Unless Told Otherwise? I don't have quite enough 3 pin fan slots on my Motherboard so I'll need to run at least ...
5
votes
2answers
3k views

Can my laptop fan die? If yes, what to do?

All, I have a new issue with my laptop (3-yr old Lenovo ThinkPad T61 running Windows XP). For a few months, it has been running hot, hotter than before. A couple months ago I took off the keyboard ...
5
votes
1answer
118 views

Need to find a power adapter

Just finished upgrading the heatsink and fan in my wife's computer (dropped the temperature about 20 degrees on an AMD), and everything works great except one problem. The BIOS is reporting that it ...
5
votes
5answers
17k views

Is the laptop's fan supposed to start and stop very frequently?

I bought my first laptop and the one thing that bothers me about it the fan starts and stops all the time. With normal usage (web browsing) the fan starts for half a minute then the it is silent for ...
5
votes
1answer
795 views

How to add more 4 pin fan controllers (hardware hacking)

I'm looking at building a new system and most of the good cases come with several fans, but most of the motherboards I've looked at only have one 4 pin case fan header. I'm looking for a guide on ...
4
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7answers
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Can I remove fans from my system?

I can't tolerate any noise in my room at all. I want to remove all 4 fans I have in my system: Processor Fan, Cabinet Fan, SMPS Fan, Graphics Card Fan Can removing all these fans produce any fire ...
4
votes
4answers
3k views

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 ...
4
votes
5answers
5k views

Compaq Motherboard gives “CPU Fan Error”

I have a motherboard for a HP business desktop dx5150 PC. The model written on the board is "MS-7050" and it is for an AMD socket 939 processor. I got everything installed in it, and when I turned it ...
4
votes
4answers
769 views

My laptop stays on only with the help of… hair dryer

My HP Pavillion dv6000 laptop can not stay on if I do not use the hair dryer to cool it. I have cut (!) the plastic case from the behind to get more air. However this was not a solution because it ...
4
votes
3answers
11k views

Do I risk destroying the fan if I use a vacuum cleaner on my laptop?

To get rid of dust that had gathered near the fan, I put a vacuum cleaner to the air intake (with the computer turned off). This removed the dust. It also caused the fan to rotate at a fairly high ...
4
votes
1answer
1k views

How can you reduce minimum fan RPM on a Mac? Is it safe?

How can you reduce the minimum fan speed? I couldn't find any command line utilities for doing it with a quick search. There must be some though? Neither smcFanControl or Fan Control are able to set ...
4
votes
2answers
12k views

How many watts do case fans generally use?

I'm deciding between a 500 watt PSU and a 600 watt PSU. I currently have a 460 watt PSU that powers everything but my dvd drive, spare hard drive, and 2 fans. I've determined 40 watts is enough to ...
4
votes
7answers
6k views

Dell XPS M1530 overheating

My Dell XPS M1530 gets insanely hot. What can I do? -- edit I just confirmed that the cooling fan is not moving. Is there any way of replacing a laptop fan?
4
votes
2answers
15k 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 ...
4
votes
1answer
1k views

Are these acceptable temperatures for my laptop?

I just installed SpeedFan 4.0 since my laptop's fan seems to be continually running at a high speed. It reports these numbers: GPU: 74C Temp1 (ACPI): 75C Temp2 (ACPI): 95C Core 0: 89C Core 1: 89C ...
4
votes
1answer
141 views

Preferred bearing type for a CPU fan

I've been doing some research into my first computer build and have come to a cross-roads when choosing my CPU fan. I have been told of various bearing types such as ball, sleeve, rifle, magnetic and ...
4
votes
3answers
3k views

What is the maximum temperature my CPUs can reach before causing damage?

After my BIOS reset itself for some reason, my computer/cpu fan is running non-stop, so I installed speedfan so I can monitor the temperature of the four cores I have. I was alarmed to see three ...
4
votes
3answers
5k views

Graphics card fan too loud

I'm beginning to notice that the fan on my graphics card is too loud. I messed with things today and accidentally forgot to plug the fan back in. (I was wondering how my computer became silent.) ...
4
votes
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 ...
4
votes
4answers
3k views

Difference in fan speed between Windows and GNU/Linux

On my Dell Vostro 200 (2.2GHz Core 2 Duo, 4GB ram) there's very noticeable difference in fan noise (and thus fan speed?) between WinXP and Ubuntu 10.04. I'ts a dual boot setup, and the fans (or at ...
4
votes
3answers
1k views

laptop fan does not stop

My laptop does not stop spinning its fans after i installed a hdd from a desktop. Here is what happened. I installed windows 7 on the laptop.2 I moved laptop hdd to a desktop. Desktop worked without ...
4
votes
4answers
7k views

Can't control case fan speeds

I a new case fan that is plugged directly in to the Mobo in "System Fan 2". I want to be able to control the RPMs of the fan. I have enabled system fan control in the bios. I am using SpeedFan. I am ...
4
votes
2answers
654 views

Is a positive, neutral or negative pressure airflow design preferred when using a single open cooled graphics card?

With a blower type graphics card, I don't think it matters very much whether you arrange the fans in your case to provide positive, neutral or negative pressure inside your case, since the blower ...