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How do you reinstall a processor thats stuck to the heat sink?

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September 4, 2009 11:11:14 PM

I'm trying to reinstall a Socket 478 processor. I removed the heat sink to clean it out (really filthy) and I noticed that the processor came out with it. How do I put it back in the socket (w/o removing it from the heat sink)? Since it's stuck to the heat sink, it's really hard to know if all of the pins are alligned with the socket or not. Can someone please help me out? Thanks in advance.
September 4, 2009 11:29:27 PM

I managed to get the heatsink on with the processor. I'm pretty sure it's secure. I put those two pins back into place (the ones that snap into place and hold the heat sink in place. Once I get the fan installed, is it ok for me to power up the desktop again? Are there any risks to powering it up now? Will the processor be ok?
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September 5, 2009 12:14:07 AM

I don't think there's a way we can tell from here whether the cpu is seated properly or not. Perhaps these photos will help you decide before you power up.

http://www.mechbgon.com/build/P4.html
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September 5, 2009 12:54:12 AM

Twoboxer said:
I don't think there's a way we can tell from here whether the cpu is seated properly or not. Perhaps these photos will help you decide before you power up.

http://www.mechbgon.com/build/P4.html


If it's not seated properly and I do power up, will the cpu be damaged at all? Would I be taking any risks?
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September 5, 2009 2:07:59 AM

Yes.

If you are not certain, remove the cpu from the heat sink (alcohol, nail polish remover, anything in small quantities that will loosen glue), clean the surfaces, insert the cpu, apply thermal material, and reattach the heat sink.
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September 5, 2009 1:50:12 PM

Twoboxer said:
Yes.

If you are not certain, remove the cpu from the heat sink (alcohol, nail polish remover, anything in small quantities that will loosen glue), clean the surfaces, insert the cpu, apply thermal material, and reattach the heat sink.


But that's the problem, I don't have any thermal material. How do I know if the processor is properly seated? I already checked that link you gave me, but it doesn't help since the pics in that link work under the assumption that you have a processor that's not stuck to the heatsink. I need to know how to insert the processor with it already on the heatsink. If I insert it properly, will the heatsink still move around a little bit? Or will it be locked in place?
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September 5, 2009 8:25:11 PM

Mike, you can't touch your left elbow with your left hand, and I cannot tell you from here whether you've got the insert right.

If you cannot *see* that it is aligned . . . if you cannot feel it and *know* that it is aligned . . . then you must remove the heat sink and go buy some thermal material.

Otherwise, power it up and find out.
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September 5, 2009 8:46:43 PM

Twoboxer said:
Mike, you can't touch your left elbow with your left hand, and I cannot tell you from here whether you've got the insert right.

If you cannot *see* that it is aligned . . . if you cannot feel it and *know* that it is aligned . . . then you must remove the heat sink and go buy some thermal material.

Otherwise, power it up and find out.


I tried powering it up and I have an orange light on the power button. Nothing happens then I try to turn it on (except for the fact that the power button is orange). Does that basically mean that it's not seated properly? If so, I guess I will have to get that thermal compound.
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September 5, 2009 9:06:14 PM

When you remove the stuff, look for bent pins before reinserting anything.
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September 5, 2009 9:06:32 PM

If you have refitted while CPU is still stuck to heatsink it will NOT be fitted correctly! :non: 
If you cannot fit CPU while ZIF locking lever is up, it will not fit. Remove the CPU & HS. Lay them on a firm surface and use a penknife or similar to seperate them. Then you will need nail varnish remover, isopropyl alcohol or TIM remover to clean the CPU and heatsink. Then follow the advice on the link given earlier.
A better prevention is , if you find yourself in that position is to twist the heat sink clockwise then anticloskwise to break the atachment between them.

Mike.
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September 5, 2009 10:25:51 PM

It happed to me once. The procesor was stuck on the heatsink on an s478 as well and i ended up with 3-4 bent pins that i had to straighten. There is no way to re-sit the processor in there with out removing in form the heatsink. If you have secured the heatsink on without putting the processor on with the lever open you probably have some bent pins

slo
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September 5, 2009 11:06:07 PM

Pulling a processor out of the zif socket with the heatsink can ruin the processor.
You must get a magnifying glass and look at all the pins carefully.
Make sure they are all there, and none are bent. If you tried to reinstall it, with the heatsink still stuck to it, you have most likely bent pins for sure, and might have even ruined the processor.
When you remove a heatsink, you must twist it left and right firmly, but gently until the heatsink breaks it's bond with the processor, so you don't pull the processor out of the socket....bad, bad, bad if you pull the processor out with the heatsink as you have just did, especially if the zif socket is still locked! Some older processors with small heatsinks you actually could raise the lever while the heatsink was still on, and pull them out together. Newer processors, you cannot do this, the heatsink is too big and prevents you from lifting the lever to release the processor. If you dont' unlock the processor, you are very lucky if you don't damage, or even pull some pins out of it. You do that, it is toast.
The only thing you can do now is use a sharp knife, and be careful or you will cut your finger off, or stab yourself, and work it under the edge of the processor and pry it off the heatsink. Hopefully none of the pins are damaged. If they are bent, you can take a mechanical pencil and slip over them and staighten them. All of this is tedious work, you must be careful. Do not damage the processor. Work very slowly, very carefully, and gently until you break the bound.
You will need to clean the top of the processor, and the bottom of the heatsink, reapply new thermal paste.

Last but not least, there was absolutely no reason to remove the heasink to simply clean it. You could have removed the fan, which should have came off easily by taking out 3 or 4 screws on the top, and then a few blasts of compressed air from a can would have done the job nicely.
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September 5, 2009 11:17:50 PM

The previous respondents have given good advice, but additionally it may help to know that to ease separating the processor from the heatsink, you can warm it with a hairdryer. Hand-hot only, don't heat it so much that it's uncomfortable to touch.
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September 6, 2009 3:18:34 PM

Ok, last night, I managed to get my hand on some thermal material. I will try to separate the heat sink from the processor. I already tried doing the hair dryer trick, but it won't come off at all (keep in mind, this thermal material is about 7 years old). I also heard that isopropyl alcohol will get the old thermal material off. Is there a special manner in which I should apply the isopropyl alcohol? Is it ok it alcohol actually gets on the pins?
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September 6, 2009 9:08:26 PM

Quote:
Is it ok it alcohol actually gets on the pins?

Yes, it's fine, it evaporates without leaving a reidue. It's also used for cleaning tape heads on tape amd video recorders.

Mike.
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September 6, 2009 9:09:38 PM

For now, any way that you can get the alcohol to soak into and attack the "glue" without bending any (more) pins. Or getting fibers (like q-tip fuzz) amongst the pins.

Solvent (alcohol), xacto knife or razor blade to cut into the glue seam and allow the alcohol to work in deeper, some heat to soften the glue . . . and some patience.
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September 7, 2009 1:16:01 AM

Twoboxer said:
For now, any way that you can get the alcohol to soak into and attack the "glue" without bending any (more) pins. Or getting fibers (like q-tip fuzz) amongst the pins.

Solvent (alcohol), xacto knife or razor blade to cut into the glue seam and allow the alcohol to work in deeper, some heat to soften the glue . . . and some patience.


I already tried what you said. My computer is an old gateway PC. Does gateway use glue in addition to thermal material? Seriously, that stuff simply will not come off. When I scraped off some thermal material from the edges, it did not come off easily at all. I really had to scrape it. I used 95% alcohol and a razor blade. It's really hard to get the razor blade in between the heatsink and processor. I also used a hair dryer to warm it up a bit. That thing simply wont budge.
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September 8, 2009 1:07:04 AM

I FINALLY got the processor off. I cleaned off the heatsink and I'm ready to put fresh thermal material on. The tube of thermal material that I have holds 5 grams. How much should I put on the CPU?
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September 8, 2009 1:33:51 AM

A small amount, about the size of a grain of rice.
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September 8, 2009 1:45:17 AM

Yes, small amount. It is only there to fill any imperfections between the 2 surfaces.
Too much is as bad as not enough. It should not be squeezing out from under the processor in globs when you put the heatsink back on. Just maybe a small amount should just start to come out around maybe 2 or 3 of the sides. If you see that, you have got it about right. If you see none anywhere, you could have slightly too little.
But it don't take much!
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September 8, 2009 7:44:46 PM

Ok, I seated the processor, put a small dab on, spread it around evenly, and then put the heatsink and fan back on. When I tried starting the computer up, all of the hardware responded this time around. However, that orange light won't go away. What can I do about that?
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September 8, 2009 8:44:54 PM

What does your orange light mean?

Is the PC working or not?
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September 9, 2009 1:28:43 AM

I don't know what it means. I'm guessing it means that something is wrong. When I pressed the power button, the computer would start up. However, I didn't have anything on the screen (no signal). But don't be alarmed. That problem predated this one (it's the reason why I posted). I won't know for sure if everything is working until I get a new video card (which I already ordered today.

But for now, what do I do about the orange light? The computer obviously isn't happy with something. What could it be?
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September 9, 2009 1:44:11 AM

Dunno lol. From your concern I'm guessing it wasn't there or was a different color before.

That LED light has some wires to a connector that plugs in somewhere on the mobo. Perhaps, if it has three pins, you reversed it?
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September 9, 2009 1:52:06 AM

I assume the orange light is in the motherboard... you should check you user's guide about that computer and see what that means, usually blinking lights means a special code dependent on the manufacturer, but it can also just be a power/stand by light that says the board is getting power from the power supply. Did you ever notice the light before you had a problem?

try changing the memory modules from slots, try only one in each socket... and by the way you should avoid getting a new graphics card for that computer, especially if it has already has a problem to start with, you should try to borrow one from a friend, or even try to get it diagnosed in a shop if you cant get a hold of one... thats an old system, and most things you buy for it wont work on newer systems... i also have a 478 machine thats currently not working and i prefered to buy a new system... (though i will be reparing it for my father to play with it lol

Oh and just out of curiosty i had the same problem when i first took out my CPU, it was hard but i managed to do it in a rather funny way... i heated the cooler in my chest until it was near my body surface temperature and i just turned the CPU until it got free... =) though i took it out of the socket a few years back so maibe the thermal paste wasnt so stuck yet lol...
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September 9, 2009 2:22:29 AM

Sorry, misread the post where the light was mentioned.
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September 9, 2009 11:22:43 PM

The orange light is not on the motherboard. On the gateway PC, when you press the power button, the light comes on (it's built into the power button). Normally, it's green. But now when I try to start it up, it's orange. I cannot find that anywhere in my gateway user manual. Why is it orange??? When I try to start the computer up, I have "No Signal" on my monitor. What could be causing that? I already changed the video card. I tried using S-Video instead of DVI (in case the cable was bad). What is wrong with my PC?
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September 10, 2009 12:13:58 AM

You're missing or not answering some questions.

However, I gather your PC is still not working. And you have an orange light on your power button instead of green.

If all you did was rip the heatsink & processor out of the socket, and if you put it back in correctly, and your PC now doesn't work . . . the odds that something else failed right at that same moment are quite low.

Odds are you now have either a bad processor, or a bad mobo (socket), or both.
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September 10, 2009 12:20:26 AM

I have had that issue and twice had to put the heatsink on the stove burner till it got warm but not hot enough to ware you can't touch or hold but match the warmth of that of a cup of coffee or hot tea. Then the tim should become soft enough to be pulled away with the hand or with the aid of a dull knife. After that mess just clean up the cpu and the heatsink while checking to see if there is any bent pins.
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September 10, 2009 12:26:58 AM

nforce . . . you need to read the whol thread - we are quite a ways past that now.
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September 11, 2009 1:01:01 AM

mikekazik1 said:
The orange light is not on the motherboard. On the gateway PC, when you press the power button, the light comes on (it's built into the power button). Normally, it's green. But now when I try to start it up, it's orange. I cannot find that anywhere in my gateway user manual. Why is it orange??? When I try to start the computer up, I have "No Signal" on my monitor. What could be causing that? I already changed the video card. I tried using S-Video instead of DVI (in case the cable was bad). What is wrong with my PC?


lols, you and I are in th same boat cap'n. I did the same thing with my processor, it came out still stuck to the heat sink and I thought it was supposed to be that way. The first time I reinstalled it I thought it went into the socket all the way, but it didnt'. Then I found out the processor comes off, so I unlocked the zif socket and did the whole reassemble thing with the new compound. Got my computer back together completely and I get the no signal input with no post, just fans and a hard drive spinning. I think it may be the motherboard or the CPU, I need to find a way to test my processor without another working computer. Does anyone know of a way to test the processor? maybe a special tool, or somewhere I can probe with my DMM?
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September 11, 2009 4:06:16 PM

SaintKr0 said:
lols, you and I are in th same boat cap'n. I did the same thing with my processor, it came out still stuck to the heat sink and I thought it was supposed to be that way. The first time I reinstalled it I thought it went into the socket all the way, but it didnt'. Then I found out the processor comes off, so I unlocked the zif socket and did the whole reassemble thing with the new compound. Got my computer back together completely and I get the no signal input with no post, just fans and a hard drive spinning. I think it may be the motherboard or the CPU, I need to find a way to test my processor without another working computer. Does anyone know of a way to test the processor? maybe a special tool, or somewhere I can probe with my DMM?


Finding a tool or test kit for testing your cpu won't be easy or worth it. Your best best is what others have said test your cpu in a different board. Your board maybe at fault when you tried to reinstall your cpu while it what still stuck to the cooler. Look again for any bent, damaged, or missing pins because the can be fault two in your setup.
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September 11, 2009 10:18:44 PM

Today my friend came over with a compatable processor, we installed it and i still have the no signal input window. The only other thing it could be is the mobo.
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September 11, 2009 11:47:00 PM

Well there you go a new board and your good just be sure to not go through the same problem as with the old one.
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September 20, 2009 1:21:48 AM

I have access to neither a test kit not another mobo. On the processor, there is one bent pin. It is bent at the halfway point and I did my best to straighen it out. I put the processor in and it popped into the socket just fine. The thermal material was applied and I put everythin back in place. I still keep getting that orange light. What is going on??? I need to know for sure! I have to get that desktop up and running soon, because it's the family computer and everyone is basically using my laptop.
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September 20, 2009 1:46:57 AM

You need a new cpu and/or mobo. There is no way anyone of us can be sure of anything, except that pulling the cpu out of its socket without releasing it has damaged the cpu or the mobo or both.

You say you put a different cpu in it, and it didn't work. Assuming that cpu was compatible with your mobo and BIOS, that would confirm the mobo is bad.

Your cpu is also probably bad, but that remains unconfirmed.
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September 20, 2009 2:30:34 AM

yeah, what do I do when this problem is solved? Should I just post or is there a special button to click?
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September 20, 2009 2:40:09 AM

SaintKr0 said:
yeah, what do I do when this problem is solved? Should I just post or is there a special button to click?

As you did not start this thread there is nothing for you to do, if the information found here has been useful to you then that is reward enough.
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September 21, 2009 4:06:09 AM

Mousemonkey said:
As you did not start this thread there is nothing for you to do, if the information found here has been useful to you then that is reward enough.

kek, yeah you're right this isn't my thread
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August 9, 2010 12:39:41 AM

I just have gone thru the same process ended up one of the pin in the CPU broke. So you better check your CPU pins, under bright light best with magnifying lense. Make sure all pins are there and not bent. If any pin bent, means it will break off when you try to bend it back.
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August 9, 2010 12:42:34 AM

ccpyue said:
I just have gone thru the same process ended up one of the pin in the CPU broke. So you better check your CPU pins, under bright light best with magnifying lense. Make sure all pins are there and not bent. If any pin bent, means it will break off when you try to bend it back.


Well.... we're glad you're helping out and all but...... I think you're nearly a year late on giving that advice. :whistle: 
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August 9, 2010 12:51:32 AM

mikekazik1, I tell you how I fixed my broken pin CPU. It works fine now: I find an electric wire with very narrow and a bit soft metal wire inside. I stripped the metal wire out. I located the broken pin position in the socket. Unlocked socket, I inserted the metal wire in to that position, lightly push it down to bottom. Locked up the socket. Then, I cut the wire leaving app 0.5mm wire stick above the socket. Now sit the CPU in to the unlocked socket. Push CPU down with light force and then locked up the socket. Install heat sink and fan. It should works if it is only the CPU broken pin problem.
But to do this, you must be handy, detail, and be patient. If yor let the metal wire stick out too long, when you press the CPU down, it may bend the metal wire to one side and touching other part of the PCU, consequent may be very serious. May damage not only the CPU. So if you want to do that too, do that at your own risk.
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August 9, 2010 12:52:51 AM

Sorry I didn't pay attention to the date.
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August 9, 2010 1:16:24 AM

This topic has been closed by Mousemonkey
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