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#1
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Faulty fans: dust or bearings?
I have a MSI KT Ultra motherboard (VIA KT333 chipset) and an Athlon XP 2100.
Normally this pc is running SETI 24/7. However, recently, on the occasional reboots, the alarm sounds because one or both of the fans are either not going round, or too slowly. Sometimes the CPU fan just takes a while to get to full speed (~5000rpm). Sometimes the fan on the chipset goes round jerkily, before finally getting up to speed. I've noticed that occasionally in Windows the CPU fan has dropped to ~2000rpm. If I then put my finger on the fan to stop it, just a quick tap, it will often fix itself and go back to ~5000rpm. Given that both fans seem to be affected, and it is quite dusty, should a good blast of air (when I manage to find somewhere to buy it) fix it? Or is it the fan bearings? Or something else? Thanks for your advice. -- Susan |
#2
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Dust in bearings = worn bearings. A bit of molly (molybdenum disulphate or
MS) or lithium grease will make them last another 3 months or so but they will have to be replaced eventually. I've managed to find industrial grade fans (not cheap) for replacement purposes and they've been great, not one failure yet. |
#3
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Replace the fans with panaflows their quieter and should last about 10
years, most fans that come with computers should be thrown in the trash because their so cheaply built. http://www.casecooler.com/vanstealquie.html Lane "S.Boardman" wrote in message ... I have a MSI KT Ultra motherboard (VIA KT333 chipset) and an Athlon XP 2100. Normally this pc is running SETI 24/7. However, recently, on the occasional reboots, the alarm sounds because one or both of the fans are either not going round, or too slowly. Sometimes the CPU fan just takes a while to get to full speed (~5000rpm). Sometimes the fan on the chipset goes round jerkily, before finally getting up to speed. I've noticed that occasionally in Windows the CPU fan has dropped to ~2000rpm. If I then put my finger on the fan to stop it, just a quick tap, it will often fix itself and go back to ~5000rpm. Given that both fans seem to be affected, and it is quite dusty, should a good blast of air (when I manage to find somewhere to buy it) fix it? Or is it the fan bearings? Or something else? Thanks for your advice. -- Susan |
#4
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"Lane Lewis" wrote in message om... Replace the fans with panaflows their quieter and should last about 10 years, most fans that come with computers should be thrown in the trash because their so cheaply built. http://www.casecooler.com/vanstealquie.html Lane OK. Is it possible to replace the chipset fan? Or do I have to replace the whole motherboard? -- Susan |
#5
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"S.Boardman" wrote in message ... "Lane Lewis" wrote in message om... Replace the fans with panaflows their quieter and should last about 10 years, most fans that come with computers should be thrown in the trash because their so cheaply built. http://www.casecooler.com/vanstealquie.html Lane OK. Is it possible to replace the chipset fan? Or do I have to replace the whole motherboard? -- Susan It can be replaced but panaflow doesn't make one that small, just do the best you can on that one. Lane |
#6
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On Sat, 11 Oct 2003 22:11:41 +0100, "S.Boardman"
wrote: "Lane Lewis" wrote in message . com... Replace the fans with panaflows their quieter and should last about 10 years, most fans that come with computers should be thrown in the trash because their so cheaply built. http://www.casecooler.com/vanstealquie.html Lane OK. Is it possible to replace the chipset fan? Or do I have to replace the whole motherboard? KT333 chipsets can run fine with a passive cooler (assuming typical/adequate chassis airflow). http://www.svcompucycle.com/zazmnobrhe.html http://www.svcompucycle.com/zanoco.html Dave |
#7
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Lane Lewis wrote:
It can be replaced but panaflow doesn't make one that small, just do the best you can on that one. They make some pretty small fans. http://www.panasonic.com/industrial/..._mini_cool.pdf |
#8
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On Sat, 11 Oct 2003 22:43:21 -0700, ric wrote:
Lane Lewis wrote: It can be replaced but panaflow doesn't make one that small, just do the best you can on that one. They make some pretty small fans. http://www.panasonic.com/industrial/..._mini_cool.pdf Yep, they make fans small enough, but finding them sold in single units is hard, and even harder with the appropriate plug on the end. Probably someplace like http://www.digikey.com .. they do have the following, but it's ball-bearing (which in my mind is actually better) but are quite steeply priced @ $15 ea, and probably bare wires so there's still the need for a plug or soldering/crimping/etc, not something one ought to have to do for a fan already costing $15: http://www.digikey.com/scripts/us/dk...447&Row=345174 The following "might" be a reasonable substitute, but thicker, needing new screws. This is assuming the original fan is 40mm sq. However, very few if any decent aftermarket fans are going to have the same backwards flow and open-frame mounting as the original on the motherboard. http://sales.goldmine-elec.com/prodinfo.asp?prodid=2549 Dave |
#9
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"kony" wrote in message ... On Sat, 11 Oct 2003 22:43:21 -0700, ric wrote: Lane Lewis wrote: It can be replaced but panaflow doesn't make one that small, just do the best you can on that one. They make some pretty small fans. http://www.panasonic.com/industrial/..._mini_cool.pdf Yep, they make fans small enough, but finding them sold in single units is hard, and even harder with the appropriate plug on the end. Probably someplace like http://www.digikey.com .. they do have the following, but it's ball-bearing (which in my mind is actually better) but are quite steeply priced @ $15 ea, and probably bare wires so there's still the need for a plug or soldering/crimping/etc, not something one ought to have to do for a fan already costing $15: http://www.digikey.com/scripts/us/dk...447&Row=345174 The following "might" be a reasonable substitute, but thicker, needing new screws. This is assuming the original fan is 40mm sq. However, very few if any decent aftermarket fans are going to have the same backwards flow and open-frame mounting as the original on the motherboard. http://sales.goldmine-elec.com/prodinfo.asp?prodid=2549 Dave I'm in the UK not the US. I'm also not *that* technical, I'm afraid. I haven't yet worked out how to get the chipset fan off for cleaning! I'm also afraid if I try and get the CPU fan off, I'm going to scrape the motherboard :-( -- Susan |
#10
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"kony" wrote in message ... On Sat, 11 Oct 2003 22:11:41 +0100, "S.Boardman" wrote: "Lane Lewis" wrote in message . com... Replace the fans with panaflows their quieter and should last about 10 years, most fans that come with computers should be thrown in the trash because their so cheaply built. http://www.casecooler.com/vanstealquie.html Lane OK. Is it possible to replace the chipset fan? Or do I have to replace the whole motherboard? KT333 chipsets can run fine with a passive cooler (assuming typical/adequate chassis airflow). http://www.svcompucycle.com/zazmnobrhe.html http://www.svcompucycle.com/zanoco.html Dave I run it with the case off. With case on, CPU temp gets to 57 deg, with the case off it is only 50 deg. It's also pretty noisy. I'm thinking maybe I should just get another motherboard, new CPU (one with a cooler barton core). New CPUs don't come with a heatsink and fan, do they? Should I get one that supports a higher spec CPU? Do I need to get thermal grease or something as well? -- Susan (UK) |
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