Power cables are clogging my CPU fan!

Hey all.
I just upgraded my MEGA 865 from a GeForce4 MX to a GeForce 6600GT(mmmmm.....GT.....)
Anyway, all is going well so far except for 1 thing.
the trusty GF4MX was a small-ish card, and the thick wadge of power cables coming out of the PSU just came around the top of it. The GF6600 however is 'full-sized' There is no room alongside it for the 'snake', so i had to push all the cable under the PSU. This seemed fine, PC started up, Graphics card was working fine etc... Then i cranked up SpeedFan to check out my temps, and saw that Fan1 had 0 RPMs. Pulled the computer to bits again and tried to the cables around the CPU fan, but no luck.
Can anyone help me? I don't want a molten CPU!
(strangely enough, the CPU temp has actually only gone up by a few degrees compared to before, but i would still like to have the fan going).

what is fan 1?
are all the fans running that you can see of?
It isnt surprising the temp has increased, the newer video cards put out more heat, thus the internal temp of the box will be hotter.
also the bigger card will restrict air flow too....
Is your PC locking up? it will lock up way before anything melts.
I would use the system as is and if you have frezzing, blue screens of death, then investigate the fan problem furthur.

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BIOS: 6398E V.1
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RAM: 512GB Infineon
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Hard Disks: WD and Maxtor 10GB-30GB
Hi all,
whenever I plug in the power cable to the hard disk computer shuts down after 2-5 seconds. If I try to start it again nothing happens. So I need to plug off and on the ATX-connector again so that the power supply works and the CPU-fan spins. However, as long as a hard drive is attached (it does not even need to be connected to any of the IDE-controller; having connected to the power supply is sufficient) it shuts down.
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2- other power supply resources were used
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Hi again,
after reading the PSU guide I used a HDD which was 20GB (an older one of app. 4 years) and system booted normally. It seems that the PSU of 300W was having a difficulty of serving the relative newer HDD with power. I will test it with a min. 400W PSU and let you know if the problem is completely solved.
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CPU Fan Speed and Memory Questions

I"ve noticed recently that my fans sound a little different. When using aperture and sliding some of the image adjustment controls the fan will increase as I'm sliding the controls and stop when I stop.
I've been monitoring with istat pro, and my CPU fan is almost always at 0, I've seen it not at 0 a few times but very rarely.
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http://support.apple.com/kb/HT3964
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HP Pavilion dv6-6093ex Entertainment Notebook PC support
LM610EA#A2N
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CPU Fan Has Failed! PC will automatically power down
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http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00013522&cc=uk&lc=en&dlc=en&product=3876701
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Hi Susielee. what was the heat sink and cpu fan that the tech installed in your HP computer? I got a used HP s5120y computer from a longtime friend that is missing a processor fan but the heatsink is there.
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Windows XP Professional (Single User) V5.01 Build 2600 Service Pack 2 MSI MS-7246 English (0x0809)
Workgroup
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System Paging File 402 (411,536) 3,939 (4,033,884) 3,537 (3,622,348) RAS Precharge 5
System File Cache 451 (461,852) 451 (462,136) 0 (284) Activate Precharge 14
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Connet cpu fan power to m/b or psu?

Hi,
finally my new computer case and thermaltake volcano 9 came this mornig.
I have a question about the power connection since I found a big connector (same as HDD's) which is used to connect to psu directily. I have K7N2G-ILSR M/B. should I plug my volcano 9 on the M/B or on the psu 12v connectoer?
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P/N A1365
Cooler Dimension 80x80x77.3 mm
Fan Dimension 80x80x25 mm
Rated Voltage 12VDC
Started Voltage 6VDC
Rated Current 0.20AMP ~ 0.70AMP
Power Input 2.40W ~ 8.40W
Max. Air Flow 20.55 CFM at 1300 rpm
75.7 CFM at 4800 rpm
Air Pressure 1.45mmH2O at 1300rpm
8.43mmH2O at 4800rpm
Noise 17 dB at 1300 rpm
48 dB at 4800 rpm
Bearing Type Two Ball Bearing
Life Time 50,000 hours
Connector 3 PIN
Tt Fan grille TR=0.38C/W

to the psu,if it does not have a seperate single wire speed sensor to plug in boards socket disable cpu fan detection in the bios,plug a case fan in there for first boot as it might not boot if it senses no cpu fan
big fan like that would pull to many watts and just burn out fan header

CPU fan at high speed due to power supply sensor

The CPU fan on my Imac runs at 3900 RPM. Apple hardware test provides an error code of 4 SNS/1/40000000:TpOP-131.000 which is the temperature sensor on the power supply. I opened the Imac and the single wire to the power supply is connected securely. At this point, the problem could be in the sensor wire ( which disappears into the wiring harness), the power supply sensor - which I assume is built into the power supply, or in the the logic board where the temperature information is processed. I have tried the SMC and PRAM resets with no results. The wiring harness is very difficult to replace, and the power supply is relatively expensive, so I would appreciate it if anyone who has solved this problem could tell me what the solution was. I would really like to repair the Imac and eliminate the loud fan noise.

Hi ee36,
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The apple repair manual for my Imac says to replace the wiring harness if you have this problem. A daunting procedure for me since you have to almost completely disassemble the Imac. It seems that if the sensor is disconnected (open circuit) the associated fan (CPU fan in this case) will always run at high speed. It seems to me that several failure modes would create this open circuit, and I was hoping that someone could identify how their Imac was fixed so I could hopefully determine the most likely effective repair. I have created an applescript program which I have set up to limit the cpu fan to 1500 RPM and limit the noise, but I would really like to have the security of knowing that the fan could respond to elevated temperatures if necessary. Thanks again.

PS and CPU fan comes on merely by plugging in AC power

I am repairing a friends Athlon xp machine and have tested everything with extras.
I put a new MSI KM4M-V board in. The pc runs xp fine, etc., etc., however, when shut down the pc, Windows shuts down, but the ps and cpu fan stays on. Indefinitely. I have to either flip the on/off switch on the back of the ps or pull the damn plug.
What gives?
When I plug the thing in cold, same thing; the fans come on and then I press the start button whenever I want and the system posts and boots normally.
A motherboard Short? I checked the switch and even pulled the connector; the fans still come on when I plug it in.
Any thoughts?
Thanks.
J Romulus

Yes, I've let it run for hours after Windows shuts off, it simply doesn't go off.
Simply plugging it in or flipping ps switch, the same thing; ps and cpu fans come on automatically.
I've read all the APIC threads; if I were strictly having problems shutting down, maybe it be that. But it is so strange that it does it from a cold start.
Got to be some kind of short, or else a bad board.

Cpu fan 90B alarm and plugged in but not chragiung alarm

hi,
I have HP notebook product: b6u29pa#acj and model: g6-2101TX.
I am getting following problem:
A. while start up pc i found alarm 930B cpu fan failure and then after restarting window7 start.
B. many time when i put laptop for changing it shown plugging but not charging and led near to charging port keep on biking white colour. that time charging not happen so if i removed charger and keep on using notebook my battery level is not getting down and suddenly at one point notebook power off. That means battery getting used but notebook not getting understand and giving me battery low alarm. Then i have to remove battery and insert it again. it will work for 2-3 days n then same problem repeat.
( pl note that note book battery is good and giving 2-3 hours backup when fully charge)
Both my problem was chronic so i took photograph when problem came and then given laptop for repair at service centre as it was under warranty.
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for CPU 930B fan alarm they only clean fan may be alarm will come in few days.
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Hello @yoursviru ,
Welcome to the HP Forums!
I understand you have issues with charging and a 90b fan error on startup.
To address your question about a trial period after repair: Typically the repairs should include a 90 day service warranty or the remainder of your existing warranty whichever is greater. This depends if the repair was done by HP or an authorized HP provider. HP Phone Support can confirm this for you.
If the repair was not done by HP or an HP service provider HP cannot guarantee the work of third party companies.
The power not charging the notebook could be an issue with the battery, internal power connector cable, power adapter, or motherboard. All of which are hardware related.
You can read about the fan error here and what to do to fix it: System Fan (90b) error message on startup.
To sum everything up. I suggest you get in touch with HP Phone Support as soon as possible as they are the ones who can give you a straight answer regarding service and warranty questions. My answers are based on personal experiences, as the forums do not offer service and are available regardless of the warranty status.
Hopefully Phone Support can give you the answers you're looking for.
Please click the "Kudos, Thumbs Up" at the bottom of this post if you want to say "Thanks" for helping!
Please click "Accept as Solution" if you feel my post solved your issue, it will help others find the solution.
The Great Deku Tree
I work on behalf of HP.

CPU fan plug stopped working

I started my rig the other day (actually about 3 weeks ago) and the cpu fan was not moving. Tried a few things but finally stuck the cpu fan plug into the sys1 fan slot and its now working. Will this be a problem in the future or will the mobo be fine without the cpu fan plug not working?
Everything else seems to be working fine - any suggestions on what to do?

I see no problem on not having your cpu fan plugged directly into the cpu header... but it may just be a tempory fix for an underlying problem. Any stability issues? Also if that header dies you can always plug directly into the power supply 4 pin to 3 pin cables are not hard to come by.
Good Luck
Jeremy

Computer won't load Windows after installing new CPU fan

My wife's computer's CPU fan quit working so she bought a new one and installed it just now. She turned the compuer on and it says "Windows failed to Start. A recent hardware or software change might be the cause."If Windows files have been damaged or configured incorrectly, start up repair can help diagnose and repair the problem. If power was interrupted during start up, close Windows normally." The choses are "Launch repair" or "Start Windows normally." When she chooses either of those, the computer shuts down. If she tries to perform a system recovery, the computer shuts down. She tried loading BIOS defaults (as was suggested on other websites), it had no affect.

Hello anthonydobmann,
You’re having a problem with the computer not booting after replacing the cooling fan.
First I’d make sure that the cable did not come disconnected from the hard drive.
Boot the computer into diagnostics by tapping F2 at startup and run the hard disk test.
If diagnostics passes try to boot the computer into safe mode by tapping F8 at startup.
If you’re able to load into windows you might have to run the recovery.
Here are some links to run a recovery.
Vista Recovery
Windows 7 recovery
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Satellite Pro L20 - power cable overheating

Hello
For several months I've had problems with keys suddenly working intermittently. Although brushing below keys with a toothbrush eased the problem for a while it obviously wasn't the main cause. Different keys each time, so not attributable to individual damaged keys.
When unplugging the power cable the metal part is very hot, and I've worked out the keys problem happens only when the computer is running on a/c AND the battery is fully charged. In other words, no problem on battery or re-charging battery. The adapter is also hot but presume this is 'normal'.
The power cable has been tested directly from another socket and not running from the usual belkin surge protector, so external sources seem ruled out. I have been trying to find another cable/adapter to test but living very rurally doubt this will be possible/practical.
The fan seems to be running OK, the air coming out the side is very warm. It doesn't appear to be dust-clogged. The area of laptop above the fan also gets warm.
Sometimes the computer crashes to black screen or blue screen (on iplayer most recently, maybe other progs too) but sound continues. I off by holding the on button for 5 seconds but it won't power on again for a while. I assume from overheating. But not certain this is always on a/c-not charging, it may be on a/c-charging as well.
Sometimes the computer seems confused whether it's re-charging, on a/c or on battery. At least the icon switches, and requires a session of unplugging before getting it right.
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Hi
I had the L20 series several years ago and as far as I can remember the DC in was at the back near the left notebooks side.
The cooling modules are placed at the left too and I assume the AC adaptor plug could be a little bit warmer due to the hot air which flows out from the left.
But listen Robin, this is only my personal theory and speculation and as the previous user already said, this issue could be related to the faulty AC adaptor too.
Therefore contact the ASP in your country and ask for the further handling.
Possibly the technicians will need the faulty part for a check and you will need to send it.
Anyway. contact the guys and ask for the help.
Good luck

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Q'n'C is on, CPU clock is down when idle but CPU fan rotates on full and makes noise. Bios fan settings cannot do anything to slowdown the fan.
Tried two coolers with same result. All coolers were with 3pin connectors while there is 4-pin jack on mobo. Bios has been updated - no result.
Any ideas?
Thank you

"Fan Power Connectors: CPUFAN1, SYSFAN1
The fan power connectors support system cooling fan with +12V. When connecting the
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mainboard has a System Hardware Monitor chipset on-board, you must use a specially
designed fan with speed sensor to take advantage of the CPU fan control.
Please refer to the recommended CPU fans at processor’s official website or consult
the vendors for proper CPU cooling fan.
CPUFAN1 supports fan control. You can install Dual Core Center utility that will automatically
control the CPU fan speed according to the actual CPU temperature.
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SYSFAN1 support fan control, too. You may select how percentage of speed for the
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The mainboard provides the Smart Fan function which can control the CPU fan speed
automatically depending on the current temperature to keep it with in a specific range.
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PC Health Status
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These items display the current status of all of the monitored hardware devices/components
such as CPU voltage, temperatures and all fans’ speeds." P3-15
Do n o t use other monitoring and fan controlling programs at the same time. There must be something the matter with the fan cable or the processor seating. 3 pins have been enough for fan control since before 2000, and as you notice on the processor fan connection, you can choose between 3 and 4 pin fan connection. Pretty silly to have such a choice if 3 pins wouldn't work.
- Heck, even the photos in the manual displays a three pin '!

CPU fan on new 27"

Hi, I bought an 27" iMac from Apple 2 1/2 months ago, and most of the time it's very quiet. But sometimes the CPU fan gets very loud and the rpm is over 3,000. When it's quiet it's usually in the
938-940 range. I did a hardware test and there were no problems. Do I need to bring my Mac in, or am I missing something?

{quote:}1. Get a can of compressed air and make sure the vents on the bottom of the computer are not clogged with anything (do you have pets?).
2. Do the same for the circular vent behind the pedestal/base (above where the power cord enters the computer)
3. Do the same for the vent slit at the top of the back of the computer.{quote}
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Power cables are clogging my CPU fan!

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