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All Forums > Tech Talk > Tech Talk Forum Page 28 > Seemingly random restart involuntarily
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AuthorPost
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 4 2008 : 1:30PM
I use the the most recent version of XP. Today twice my computer has decided to shut down and restart with no prompting from me.
It might be an issue with CPU heat. The fins of my heat sink are caked with un-vacuum able dust so I am afraid my CPU fan is cooling the crud and not the CPU.
What is a good way to clean out the fins? A toothpick does not bend the way I need it to and a pipe cleaner is made with a scratchy metal core.
Have you folks any ideas?
ninja1
Senior Member

2939 Posts
1/08
Posted - Feb 4 2008 : 8:41PM
A toothbrush, makeup application brush, small paintbrush, pastry brush or a basting brush might work.
Drew Black
broken crankshaft

8009 Posts
9/99
Posted - Feb 4 2008 : 9:16PM
Compressed air?
Bob All-Star Supporter
All-Star Member

5516 Posts
3/03
Posted - Feb 4 2008 : 11:20PM
Have you been monitoring your CPU's temperature? If not, there's almost certainly an Asus software utility for your motherboard that does so. Also, have you checked the BIOS for system failure reports?
RandomPrecision
Senior Member

Enjoy!
8175 Posts
3/06
Posted - Feb 4 2008 : 11:27PM
I doubt it's a heat issue but you never know. Compressed air is expensive but is safer than using a vacuum cleaner (static). I use a combination of an old, soft toothbrush and compressed air. It takes a while because you not only need to get the dust out of the fins but you don't want to leave it inside your case at all. So. You need something like a small paintbrush to get it all out.
I need to do this myself. I've been putting it off and I just know there's a ton of crud in there.
 
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 5 2008 : 2:26AM
Thanks.
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 5 2008 : 5:14AM
@ Bob: a quick check shows that I am operating with way too much heat. Over 50 degrees metric right now. Ack!
EDIT for spelling.
Edited by - conquistador on 2/5/2008 5:17:56 AM
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 5 2008 : 5:17AM
@ Drew : I have attempted to clean up my heat sink with compressed air/gas and it is going nowhere. The crud is firmly intact in my heat sink.
I have an awful fear that nothing is getting cooled.
EDIT: because I failed to spell "it" properly.
Edited by - conquistador on 2/5/2008 5:19:09 AM
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 5 2008 : 5:20AM
I want to buy a new heat sink/fan for a socket 775 chip but I cannot find one locally.
Drew Black
broken crankshaft

8009 Posts
9/99
Posted - Feb 5 2008 : 9:03AM
Just take your heat sink out and wash it in the sink.
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 5 2008 : 12:28PM
Seriously? (I don't mean this post as a joke) Is that really okay to do?
I'll have to get a tube of heatsink grease when I put it back on right?
Edited by - conquistador on 2/5/2008 1:16:22 PM
Drew Black
broken crankshaft

8009 Posts
9/99
Posted - Feb 5 2008 : 1:07PM
Sure, there's no reason you can't wash it. It's just a piece of metal. Make sure you disconnect the fan if it's attached. Then dry it with a hair dryer or something along those lines.
Did you know that most circuit boards are washed with a water solution during the production assembly process?
Yes, you'll also need some heat sink paste.
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 5 2008 : 1:13PM
I can definitly take the heat sink and fan apart but the whole thing makes me very nervous.
What do you folks recommend as a good heat sink grease/paste/whatever? And is it expensive? (As in more expensive then just buying a new socket 775 Pentium heat sink?)
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 5 2008 : 1:18PM
Please forgive my ignorance but why does that happen? I have always thought (possibly incorrectly) that moisture was an enemy of my computer...
Drew Black
broken crankshaft

8009 Posts
9/99
Posted - Feb 5 2008 : 2:07PM
Prolonged exposure to moisture can be a bad thing. It can promote oxidation and other problems. A quick wash is not a problem.
During the manufacturing process as the components are soldered to the circuit board there's nasty chemicals involved. The circuit boards go through a wash cycle to remove these chemicals. At one point in time the wash cycle used chemical solvents. I think by the late 90s most of that was replaced with water based solutions or just plain deionized water.
 
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 5 2008 : 2:10PM
Thanks Drew.
RandomPrecision
Senior Member

Enjoy!
8175 Posts
3/06
Posted - Feb 5 2008 : 2:37PM
Well, it would make me nervous too. I'm guessing you didn't install the processor yourself? From what I've read (I have no personal experience, mind you), that sometimes, the factories cheap out with the thermal conductors and after a while, the processor and heat sink become pretty firmly attached. apparently, if that happens, it can be pretty easy to crack the processor so you're going to want to try and make sure you don't apply too much pressure.
In my opinion, there are two factors here. First, the risk of taking the heat sink out isn't worth it if you can clean it some other way. You should be able to get at the fins with a toothbrush if you just remove the fan.
HOWEVER, if you're having an issue with too much heat, it could also mean that you need a fresh application of thermal grease. I hear that the good stuff can cost as much as $30 (US$) but since it's such an important component, the money spent could be well worth it. However, the kind the has silver in it conducts electricity so if you use that, you'd better make sure you don't spill any on the board and don't put so much in there that it squishes out and spills over the edges.
Again, I'd try just cleaning it first if you aren't really comfortable and see if that brings the heat down.
OTOH, unless you have a fancy processor, even if you had to replace the processor, prices have come down quite a bit and you can get a nice processor for not too much.
Edited by - randomprecision on 2/5/2008 2:39:02 PM
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 5 2008 : 2:56PM
RP you have succeeded in making me petrified about this.
The fins in my CPU heat sink are caked with immobile dust/crust.
I can probably easily clean the thing if I can come up with a way to do so. The paint brush is a smart idea. My vacuum cleaner does not work.
EDIT: to say that I have attempted to vacuum the gunk out of it. No dice. And also I have tried to blast the crud out with compressed gas dusters with no luck. It is firmly embedded.
EDIT AGAIN: to say that I would not find the option of removing it and washing it appealing. Drew, I think you know your stuff about computers but this makes me super nervous and worried. Though it makes perfect sense to me.

Edited by - conquistador on 2/5/2008 3:05:05 PM

Harri Patel
Senior Member

#SDNY he's all yours. -- Michael Steele
5110 Posts
3/03
Posted - Feb 5 2008 : 3:25PM
Removing the heatsink is really not very difficult at all. You just have to look at the spring clip and figure out how to unlatch it from the tab on the motherboard. Some of them have a thing you can just press down on with your thumb; others require you to use something like a thin screwdriver (you need to be careful to not press down too hard and/or at a bad angle, and have the screwdriver tip careen off and stab into the motherboard). It will come right off the CPU after you unlatch it. A new little vial of the standard white CPU grease should be close to free at any computer store. I wouldn't bother with the "Arctic Silver" stuff.
Harri Patel
Senior Member

#SDNY he's all yours. -- Michael Steele
5110 Posts
3/03
Posted - Feb 5 2008 : 3:27PM
I should add, I'm used to AMD chips, but I assume that it's basically the same drill with Intel.
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 5 2008 : 3:48PM
Thanks Harri. The whole thing still makes me feel scared though.
Bob All-Star Supporter
All-Star Member

5516 Posts
3/03
Posted - Feb 5 2008 : 6:56PM
The first step is to take your motherboard out of your case and put in on something like cardboard or foam. You can then mask the motherboard -- other than the CPU socket/heatsink area -- with shopping-bag paper or something similar. It will be much easier and safer to clean it that way. Another cleaning tool you might try is a cheap electric toothbrush.
I'm with Harri -- taking off your heatsink is not a big deal if you're reasonably careful. It's also much less stressful if you spend some time inspecting your motherboard to see how the heatsink is attached. Also, go to the website of the company that manufactured your heatsink and look up your model. There should be support documentation about installation and removal.
Once you've removed the retainer clips on the heatsink, don't use force to pull it off the CPU; instead, rotate it around some to loosen it.
I think Arctic Silver is worth it, especially if you're overclocking your CPU. It's about $10 for a re-sealable tube, which can be used many times (you don't need or want to use too much per application). I clean off both the heatsink and the CPU die with solvent to get all the old paste off. Then I squeeze a very small amount on the processor die and spread it all over with my index finger, so that the whole surface is just covered.
Bornyo
Deactivated Member

803 Posts
12/04
Posted - Feb 5 2008 : 7:05PM
I wouldn't hesitate to take the CPU and the heatsink off the MB together, remove the fan and wash them both in the sink with a toothbrush. That's assuming I couldn't separate the heatsink first.
Like a gonzogirl- your cpu is "airtight".
Drew Black
broken crankshaft

8009 Posts
9/99
Posted - Feb 5 2008 : 10:58PM
I think brake cleaner would work pretty well too if the heat sink is removed from the system. I use brake cleaner for lots of stuff it's not supposed to be used for.
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 5 2008 : 11:10PM
@Drew: are you being serious?
EDITED TO ADD: I just googled break cleaning fluid and it sounds incredibly caustic. It will dissolve asbestos. Do you have to use the stuff outdoors?
EDIT AGAIN LATER: Oh my. I like the way you think. I could take off my dirty heat sink and dunk/spray it with that stuff and it would probably remove all of my caked on dust/crud.
EDIT yet again because my spelling sucks.
Edited by - conquistador on 2/5/2008 11:15:16 PM
 
Drew Black
broken crankshaft

8009 Posts
9/99
Posted - Feb 5 2008 : 11:21PM
Yeah, you don't want to use brake cleaner in the house. You should also rinse it off with water to be sure no residue remains. I am serious. I'd use brake cleaner. It might not be the smartest thing to do but I know it works.
Don't get it on your skin either. It will leave it red and raw like the kind of sunburn you get when you accidentally leave skin exposed while welding steel.
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 5 2008 : 11:30PM
OFF topic: I have gloves that I got at a farming supply store which are made for handling pesticides. I believe they are coated in PVC which shouldn't be dissolved by break cleaning fluid.
Okay so I want to get all this straight:
I should carefully remove my heat sink and fan and then remove the fan from the heat sink. I should also buy a tube of heat sink grease/paste/whatever.
Next I should get a can of brake cleaner and scrub the heat sink with it.
Then pretty much reverse the steps?
Harri Patel
Senior Member

#SDNY he's all yours. -- Michael Steele
5110 Posts
3/03
Posted - Feb 5 2008 : 11:35PM
I can't believe there could possibly be anything on that thing that won't come off with soap and water, or any kind of common household cleaner.
But, having said that, if it's total overkill you're after, get yourself one of those gallon cans of carburetor cleaner that comes with a dip basket. Guaranteed to take years off your life, and leave your hands, computer, and apartment smelling like embalming fluid for months.
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 5 2008 : 11:38PM
Harri: the way you write posts is very funny.
I'll take a picture if you folks want. My CPU heat sink is seriously (no joke) caked with immobile crust.
Bornyo
Deactivated Member

803 Posts
12/04
Posted - Feb 5 2008 : 11:48PM
I demand to see a picture. If you post a picture of this mess you have while its still installed on your motherboard I will uninstall my processor and heatsink and wash it in my sink. I will post pictures of that process.
I never said use solvents. Hillary Scott is not "gunk proof" she is air tight.
Drew Black
broken crankshaft

8009 Posts
9/99
Posted - Feb 5 2008 : 11:51PM
That parts dip stuff is amazing. I bet it would eat right through the thin fins on a heat sink in a matter of minutes. I always liked that stuff for cleaning greasy or rusted parts.
BTW, you shouldn't have to scrub with brake cleaner. It will do all the work for you. You just spray it on and the crud will wash away with zero effort. It's chemically formulated to wash brake dust away and leave little residue. It does leave some residue that you should wash off.
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 5 2008 : 11:55PM
[Image not found DB]
This was taken just now while the fan was running.
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 5 2008 : 11:56PM
I can probably take a better picture but I think it is very clearly a mess.
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 5 2008 : 11:58PM
@Drew: wait what and huh? you think this process will break my heat sink. I am totally confused.
EDIT: the word "this" hasn't a letter "d".
Edited by - conquistador on 2/5/2008 11:59:17 PM
Bornyo
Deactivated Member

803 Posts
12/04
Posted - Feb 5 2008 : 11:59PM
That's just the fan. Where is your heatsink? Shut down your system, get an old toothbrush and a vacuum and clean the damned thing out.
 
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 6 2008 : 12:01AM
It's hiding behind the fan. I haven't got any thermal grease/paste right now so I am afraid to mess with removing it.
RandomPrecision
Senior Member

Enjoy!
8175 Posts
3/06
Posted - Feb 6 2008 : 1:21AM
Well, you're probably going to have to remove that fan before you do anything anyway. You might have to disconnect a few of those wires. Just remember where they go. Different colors of Sharpie markers work well for that if they aren't already marked. Removing the fan shouldn't do anything to the heat sink but expose it for inspection and make it easier to get at it. That's how mine is, anyway. I take my fan off and I can just brush out the dust. And yeah. Last time I cleaned mine, some of the dust was too stubborn for compressed air. But with the fan out of the way, it shouldn't be a problem to get at it with whatever implement you choose to clean it with.
I don't know if this was necessary (my monitor is a little dark) but I brightened your pic a bit.
[Image not found DB]
It looks like the fan is held in place by clips. Some have screws, some clips. I can't really tell from the pic.
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 6 2008 : 1:27AM
This is totally off topic but why did RP's pic look nicer then mine?
RandomPrecision
Senior Member

Enjoy!
8175 Posts
3/06
Posted - Feb 6 2008 : 1:30AM
I just used Irfanview to brighten it up a little. I wasn't sure if it was just my monitor making it dark or not.
RandomPrecision
Senior Member

Enjoy!
8175 Posts
3/06
Posted - Feb 6 2008 : 1:33AM
Just out of curiosity, do you smoke? That looks just like the crud that builds up in mine from my smoking.
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 6 2008 : 1:50AM
I do not smoke any more.
RandomPrecision
Senior Member

Enjoy!
8175 Posts
3/06
Posted - Feb 6 2008 : 1:55AM
As an aside, I was thinking about putting screens on the air intakes on my computer to see if they would catch most of the dust before it even gets inside the case. Then, I could just visually check them and brush them off as needed. I'm not sure though. It seems like it could block a little air flow.
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 6 2008 : 1:56AM
RP: pardon me please but I am confused.
RandomPrecision
Senior Member

Enjoy!
8175 Posts
3/06
Posted - Feb 6 2008 : 2:02AM
Confused about what? I think I might be too.
Edited by - randomprecision on 2/6/2008 2:03:33 AM
Bob All-Star Supporter
All-Star Member

5516 Posts
3/03
Posted - Feb 6 2008 : 10:27AM
All my air intakes have screens. They keep out all of the crud other than fine dust, which is easily removed with compressed air. The air flow has not been impeded in any significant way and the air filters can be easily removed and cleaned with a combination of compressed air and tap water in the sink.
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 6 2008 : 10:29AM
Sorry RP. at that time of the morning I was way too drunk to understand what you meant. What you wrote makes sense and I was confused.
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 6 2008 : 10:30AM
Bob: did you buy or make your screens? I have never seen them at a computer shop but it seems like a very smart idea.
Bob All-Star Supporter
All-Star Member

5516 Posts
3/03
Posted - Feb 6 2008 : 10:39AM
conquistador,
Is your motherboard covered with crud, too? It looks that way from RP's photo. If so, you might want to clean that as well when the board is removed from your case.
Note: Since you're currently using Intel's stock heatsink, you might also consider finding a replacement for it on eBay. Lots of people who purchase retail LGA 775 CPUs use an after-market heatsink and want to unload the unneeded stock heatsink that came in the retail box. I'd guess you could pick up a brand new replacement of your current heatsink for $10-$15 bucks plus S&H.
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 6 2008 : 10:43AM
Most of the board is not crusty. It is pretty much only on the main CPU heat sink and the South Bridge (which I can photograph if you want).
conquistador
Deactivated User

Hellhamster.
2947 Posts
10/03
Posted - Feb 6 2008 : 10:44AM
Should I look for something that is *not* made by Intel?
Bob All-Star Supporter
All-Star Member

5516 Posts
3/03
Posted - Feb 6 2008 : 10:52AM
I bought mine at Frys Electronics (a retail chain in Los Angeles) as part of a package that included a plastic grill that snaps on the inside face of the intake fan and holds the filter screen (made of 1/16 inch fiber) in place. Frys also sells stand-alone replacement filters.
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