Fans continually siezing in one computer.

[Tau]

Well i just took my HTPC appart as its been running a bit warm (Q6600 stock @ ~50*C idle) so i knew something was up, i figured the cooler was just clogged with dirt or some wires were in the way or something.

Anyways i open it up and notice that the intake, and CPU fan are siezed! These fans are at most 4-5 months old, and before i put them in the old CPU fan that was in it siezed as well.... i had figured the fan just died and replaced it (later cleaned it and fixed it) but now i see the two other fans i put in there are siezed as well it makes me wounder...

http://www.memoryexpress.com/Products/PID-MX19091(ME).aspx

Those are the fans I have been using, i have them in most all my machines and have not had seizing issues with them in other machines (even machines that pick up more dust....)

The HTPC lives in a mostly sealed Stereo rack with the rest of my equipment, as well as the intake is filtered so there is not that much dust in the case....

Any ideas? I mean its possiable i just got bad fans.... but i bought a dozen or so at once and just the ones in the HTPC are buggered...

Anyways if anyone has some input, i need to try and track a couple more down or take these ones appart now

 

[Flyordie]

Push-Pull Ratio? Maybe they don't like being stressed? lol.

 

[sneekypeet]

are you plugging them both into the motherboard headers?

 

[Tau]

Push-Pull Ratio? Maybe they don't like being stressed? lol.

in the HTPC there is one for intake, one on the CPU and a pair of 60mm fans (as well as the PSU) for exhaust....

its really weird as the last one that seized in here was on the CPU.... and just the stock 92mm instake... (now gone)

@Sneaky

No they are all right into the PSU with molexs.... i hate motherboard headers...

Actually the CPU fan might be on a header.

 

[sneekypeet]

ahh I was thinking the headers voltage may have been set to low to opperate the fans.

 

[Tau]

are you plugging them both into the motherboard headers?

ahh I was thinking the headers voltage may have been set to low to opperate the fans.

I dont think so, the intake fan wont even turn, and the CPU fan is VERY stiff seems like a bearing issue, I'm going to take them appart there in a few minutes and try to "revive" them.

 

[sneekypeet]

you dont have a pet with long hair that is getting wound up or anything right?

 

[Tau]

you dont have a pet with long hair that is getting wound up or anything right?

No pets with hair... thats why i'm stumped as well... and its ONLY in this one PC that they seize.... Iv had these fans running for over a year in a workstation that sits on the floor on carpet and sucks ALOT of dirt and their fine :S

**EDIT**

Maybe they are drying out from the heat? thats the only thing i can think of is the cramped quarters and fairly warm operating temps are causing them to seize up...