Fan speed too low.. 1

[solarFlash]

I recently fitted a new front fan and an additional rear fan to my case (it originally only had one fan at the rear). I have a MSI KT3 Ultra MOBO with an Athlon 2100+. Problem is the software is use to monitor the temperature (PC health III i think its called) is reporting that fan 3 is running at 1800rpms approx, this is getting flagged as a problem by the software (1900 RPMs is the default lowest value before it gets flagged).

How would I increase the RPMs of the fan?

Thanks

Gordon.

 

[paparazi]

Is this a problem? or just annoying?
You have several choices:

Replace the fan for a faster one

Disconnect the fan (exclude it from the sensing) connect it to a molex instead of to the motherboard sensing.

If this fan is thermally controlled? then you could cut of the thermo sensor bulb and join the wires for "full speed" operation.

What size is the fan? 80mm? 90? 120? the bigger the fan generally the slower it spins.

Standard fans:

80's typically around 2,800rpm
90's " " 2,000
120's " " 1,500

Martin





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[solarFlash]

Ive had some overheating problems recently which result in the machine rebooting itself, thats why i bought some extra fans although the pc does still reboot itself after being on for prolonged periods (it beeps once then resets), and when I check the temp its only around the 50 degree mark. So i thought it might have something to do with the fan warning I was receiving. Its fan 3 which i think is the front fan which is 120 and its not controlled thermally, although a friend just suggested that might be a good idea. So I guess its not really spinning so slowly, its just strange the health software was complaining about it. Thanks very much for your informative relpy Martin.

 

[evolutionary]

try motherboard monitor (and maybe even cpuidle pro) for some good cooling and monitoring. ive gotten much better cooling and monitoring with these awesome two tools.

 

[paparazi]

solarFlash
As you can see your reported RPM figure (or lack of it) isn't unusual for a big, slow turning 120mm unit.
It has simply gone outside the monitors threshold.
These H/W monitors were originally designed for much faster CPU fans eg: 50 and 60mm units, that would often spin at or around 5,000rpm, so you can see why they find a slow 120mm fan difficult to detect.
As for your temps:
The XP2.1 was the fastest of the Palomino core XP's, as with all the "last in the core range" CPU's, AMD had reached their design limit in terms of heat disipation, so they ran pretty hot.

Athlon Thunderbird 1.4 damn hot!
Athlon Palomino XP2.1+ Hot!
Athlon Barton XP3.2+ Hot man hot!

All the fastest in there core ranges!

Having said all of this, it seems you have things well under control at 50C, this is a very acceptable idle temp for the XP2.1+ CPU
I'm just wondering what you max temps reach?

Martin


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[solarFlash]

Thanks for the replys guys, im at work at the minute but as soon as I get back i'l give those programs a try and get some max temps. Thanks again

 

[solarFlash]

I tried out those programs mentioned and Im actually beginning to wonder if the problem is related to heat at all. The machine only restarts when im not at the pc so i never actually see it restart, all i see is the log on screen, followed by this error message:

Error signature

BCCode : 1000008e BCP1 : C0000005 BCP2:AA1F4A51 BCP3:A91156B0
BCP4:00000000 OSVer:5_1_2600 SP:2_0 Product:256_1

Doesnt mean much to me, can anybody else help?

 

[Nelviticus]

I'm at my Win2k work machine at the moment so I can't remember exactly where you do this in WinXP, but you can control whether the machine reboots when serious errors are encountered. On Win2k it's Control Panel/System then the 'Advanced' tab and the 'Startup and Recovery' button. The default setting is for it to automatically reboot. If you turn that option off you'll be able to see the error message.

However, only disable it if you're pretty sure that the problem is not heat-related - the last thing you want is for your machine to reach a critical heat level and stay there when you're not around.

The problem might be faulty memory. Have a look for something called MemTest86 in a search engine. It creates a bootable floppy which runs extensive memory tests over a period of hours - if errors show up then you probably have a dodgy RAM module.

Nelviticus