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The fan in my 1000H make alot of noise when horizontal, but if it's tilted the noise stops. I can't return my computer, so I'm thinking of ways to fix it myself.
When I flipp the computer up-side-down I have no noise problem, so I'm thinking of flipping the fan up-side-down. Do you think this will work? The fan is a centrifugal type fan, so it shouldn't make any differens which side is facing the hot parts of the interior as long as the outlet is placed in the right direction, right?
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if you flip the fan you invert the air flow...
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I actually posted the same earlier then deleted it lol
what made me do that was having not seen the fan and reading it has a side exhaust
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konidair wrote:
if you flip the fan you invert the air flow...
Will it reealy be inverted? It's not a regular fan where air is sucked from one side and blown out the other, in axial direction. The air is blown out radialy, through a hole in the fan frame, and that's why I think flipping it won't cause any change in air flow.
But I'm not sure that the fan will fit up-side-down...if I remember correctly the top side of the fan frame if not flat, and is sticking up a few mm through the MB.
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is one flat side of the fan blocked off or does it suck in from both flat sides?
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AlmostInvisible wrote:
is one flat side of the fan blocked off or does it suck in from both flat sides?
Both sides are open, so it sucks from both sides.
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Ok, so I never got around to flipping the fan. Instead I ended up removing the rotor of the fan, added some new lubricant to the sleeve bearing and put the thing back together.
Now the fan is completely silent, so I can recommend trying that is you have problems with a noisy fan.
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What about a good blast from a can of air?
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skropp wrote:
Ok, so I never got around to flipping the fan. Instead I ended up removing the rotor of the fan, added some new lubricant to the sleeve bearing and put the thing back together.
Now the fan is completely silent, so I can recommend trying that is you have problems with a noisy fan.
Care to show us how to remove the rotor from the fan?
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ehnvis wrote:
skropp wrote:
Ok, so I never got around to flipping the fan. Instead I ended up removing the rotor of the fan, added some new lubricant to the sleeve bearing and put the thing back together.
Now the fan is completely silent, so I can recommend trying that is you have problems with a noisy fan.Care to show us how to remove the rotor from the fan?
Havn't got any pictures, but here's how to do it:
Disconnect the fan from the MB and unscrew it from the chassie. Unscrew and remove the metal plate from underneath the fan.
The rotor is only held in place by magnetic forces between the rotor and stator, so just pull the rotor straight out. Be carefull not to bend the sharf or damage the bearing!
Add lubricant to the bearing (I added one drop of sewing machine oil to the bearing and one to the shaft), put everything back together and enjoy your silent eee!
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I've had my eee 1000H for 3 days now and had been, until last night, suffering from exactly the same problem as described; loud, scratchy, loose bearing noise coming from a fan, which would go away if i tilted my eee.
I was all set to follow skropp's advice (which looks excellent, and which I may yet need to still follow) regarding oiling the bearing in offending fan, this morning. However, the last thing I set my eee doing last night was a little benchmark I have been running on my new computers since 1994 using a ray-tracing engine called povray to draw a pretty picture of a chess set. I put the eee on Super mode (1.8GHz clock) and the fan sped up after only a few seconds. I immediately noticed that the dodgy bearing was no longer resonating at this speed. Just out of interest I clocked her back down again and at the lower fan speed she started back grinding away with the same mindnumbing noise. "damn" I thought "that didn't fix it, must have just stoped bearing resonating at diff speed, ah well". So I clocked her back up and went to bed.
Chess set done, looks very pretty. Time comparable to a P4 desktop I had a few years back if anyone cares.
I clocked the eee back down, the fan slowed, but no noise. Been working now for about 3 hours with eee on lowest power and fan speed and yet no noise. yay!! Seems like a solid night of top speed has fixed the bearing... maybe worked some lubricant to a useful place, or ground something into shape, or perhaps the thing has slipped into place in some way. Who cares?
It'll probably go loud again the moment I finish writing this. But maybe not. Going by a few other threads I've seen out there, there are lots of people suffering with the same manufacturing flaw. Many seem to think it's normal and haven't noticed the tilting effect on noise, and hence inferred the problem not being one of quality, but being an actual flaw.
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you may as well lube it now to avoid undue wear on a possible dry bearing as there almost certainly will be a bronze bush as part of the bearing, the other being the spindle.
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I just oiled the fan in my 1000H so here are some pics about how to do it.
Unscrew all 8 screws
plus the 3 screws inside the battery compartment.
Remove the keyboard pushing these tabs inside (there are 4 along the F's)
Remove the keyboard connector.
Remove the 7 screws holding the aluminium plate.
Disconnect the touchpad.
Disconnect the hotkeys.
For the next operation you need something like this (a guitar pick would be ok) in order to protect the case from scratches.
Open the case.
Now you can see the fan. 
You need to remove the 2 screws that hold the mobo in place.
Remove the tape from the fan connector.
Disconnect the fan.
Remove the screws that hold the fan in place.
Easily lift the mobo and remove the fan.
Remove the screws that hold the face of the fan in place.
Disassemble the fan by lifting the rotating piece.
Use some oil or grease.
Assemble the whole thing reversing the order of the operations.
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lol damn. what a disection! all said and done, did it quiet down the fan for you?
], kingston 2gb ram, WD 250gb hdd, LG external DVD, 12 000mAh battery)Offline
danristei - AMAZING guide!!!
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lol sadly i think i'm going to have to do this too. w/eeectl and the fan turned to 0% it still seems like something's not right. i'll give it a go in a few days time. wish me luck lol 
], kingston 2gb ram, WD 250gb hdd, LG external DVD, 12 000mAh battery)Offline
dangit. u know what, i think it's actually my hard drive that's making the noise while at idle. it's not the ticking, more like a spindling noise. anyone? i have a WD 250gb 5400rpm.
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Nice break down/explanation and pics!
Last edited by projectkmo (2008-10-27 12:17:27 pm)
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I notice my fan is a little loud, is it also normal for it to be on ALL the time???
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Yes! Thanks a lot, danristei! I have the 1000H for two weeks now, and yesterday the annoying fan noise started. (Usual symptoms: when I tilt the netbook from horizontal to vertical, the noise stops.) I was very disappointed, and so I was happy that I found this tutorial on how to oil the noisy fan. It worked fine and now I don't hear the noise anymore. (I hope it stays that way.) Just two remarks:
1) about disconnecting the keyboard and touchpad:
Because I didn't know how the connectors work, I made a small mistake. I simply pulled the cables out, because I expected that it consists of two connectors, one at the cable and one on the motherboard, that stick together. But there is no connector attached to the cables, so I wondered about how I would ever put them back inside. (For my defense: in my device there is a tape above the connector(s) so that I didn't see it so clearly like in the pictures shown.)
The correct way (I guess) to unplug them is to push the white part of the (e.g.) touchpad connector away from the black part (please refer to picture 6 of danristei's posting). Then you can pull the cable easily out. And if you reassemble the netbook you simply slip the cable back into the connector and push the white part of the connector against the black part to clamp it. It works the same for the keyboard.
2) about removing the rotor from the fan:
My fan looks slightly different from danristei's. But the disassembly worked just as well: remove the 3 screws which hold the silver plate attached to the fan, and then I had to push quite hard to remove the rotor from the fan. In fact, it was so difficult that I was searching for additional screws that might hold the rotor. But there were none.
By the way: I used "all-purpose bicycle oil" to lubricate the fan. It seems to work fine.
(I hope my remarks are understandable, because english is not my first language...)
Last edited by hgk (2008-11-26 4:17:20 am)
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this should work for just about all fans... i've used tons of different lubes (and improvised lubes) for many types of notebook/desktop fans... my favorite had to be "i can't beleive it's not butter spray" in my friends CPU fan... it smells like fresh popcorn whenever it's running pretty hot now but the fan is super quiet!
(KY works really good too)
(edited for typo)
Last edited by RandyLude92 (2008-11-26 3:01:42 pm)
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Excellent work!
What kind of bearing is this? Sleeve bearing or hydralic bearing?
Now excuse me while I go get some tools and lube to quiet my 701 *and* my spanking new amd cpu...
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sure its just 2 screws holding the mobo? Still seems a tight fit for getting at the fan without braking anything
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