ScriptUO
Casa de TrailMyx => Hardware Design => Topic started by: Ultima on September 17, 2011, 08:08:08 PM
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Some OEM manufacturers actually use a thermally conductive adhesive for the CPU/heat sink.
Since you are trying to replace a mobo from a compaq, sometimes the cases are nearly proprietary sized, so be careful with what motherboard you choose.
If you need to find and exact match, I'd look at Ebay. That's a great place to find exact replacements for OEM hardware. Just find the part number for the motherboard and do a search.
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Some OEM manufacturers actually use a thermally conductive adhesive for the CPU/heat sink.
Since you are trying to replace a mobo from a compaq, sometimes the cases are nearly proprietary sized, so be careful with what motherboard you choose.
If you need to find and exact match, I'd look at Ebay. That's a great place to find exact replacements for OEM hardware. Just find the part number for the motherboard and do a search.
I just went down stairs and got the CPU separated from the heat sink and sure enough there is a boatload of adhesive placed on the heat sink and the bottom of the CPU that was causing it to stick! Why the hell would they do that? Is that common practice within the industry?
The thing about replacing the computer I don't want to spend money on stuff that was from 2005. I was hoping to get a motherboard and CPU that would fit in the chassis that's 2009 or later. Doesn't make sense to me to spend $100 or so on hardware that's semi-obsolete.
Are you saying even if I find a Micro ATX that is 9.6"x 9.6" there is a good chance the nuts and bolts won't line up with the board because of HP Compaq's proprietary build?
I might be handing over one of my two computers to my friend.
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If this is 2005, compaq was following more normal hole patterns so you should be OK finding a decent motherboard for cheap.
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when you first install a heat sink and CPU there looks like a small square of adhesive after it has been warmed up it kinda melts and creates a bond to each other this is typical procedure....
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when you first install a heat sink and CPU there looks like a small square of adhesive after it has been warmed up it kinda melts and creates a bond to each other this is typical procedure....
Why though? Why in the hell? It's clamped down and blocked in by a fan. It's like setting up a self destruct mode or an Indiana Jones type booby trap!
Anyways so I learn from my mistakes. What is the rule of thumb? Never take out a CPU once you've placed it into a motherboard? Install only?
Granted I'm just a novice but I'm having a hard time understanding how you attach the CPU (without damaging it) to the ZIF socket with the heatsink attached to it.
There's going to be lots of questions for my instructor come Monday!
The good news is I found some relatively inexpensive motherboards that I think will fit into the Compaq Chassis the bad news is I don't think the 2005 PSU 350 Watts is enough power to support the new board and cpu.
I really messed up! 8)
Live and learn. ;)
Lots more to learn. Lots...
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I work on a lot of my friends and colleagues machines. i warn them that old hardware is prone to break when redoing anything.
That said you were unlucky.
But for heat transfer (which i teach) a small air gap works as a marvelous insulator. Which is why they use an adhesive between to surfaces that conducts heat. (this is the same principal as thermo pane glass).
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Did you try pulling the RAM? Sometimes the contacts of the RAM develop oxides. I've found that you can take a #2 pencil eraser, and "erase" each side of the contacts. However, generally you'll hear beeps from the POST (power on self test) that tells you of bad RAM, etc. Are there any beeps? Also had similar problems when the video card is not seated correctly. Do you have another video card to try?
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Ultima... One piece of advise that I can give is this. Be careful how much you express to others that you will fix PCs. When I got my degree EVERYONE came out of the wood works wanting something done to their PCs for nothing or next to nothing. Nine times out of ten they would bring you a computer that was a dinosaur and expect you to do wonders with it. The other half of the time they was rittled with viruses from porn sites. I completely got burned out in a very short period of time.
Good Luck!
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...Be careful how much you express to others that you will fix PCs. When I got my degree EVERYONE came out of the wood works wanting something done to their PCs for nothing or next to nothing. ..
Man, no kidding! My friends and family claim that I snarl like a wildebeast when I'm asked computer questions. I think the hint was when I got off the plane to visit my family and I was sporting my new tee shirt, "No, I will not fix your computer". They chuckled. I was serious.
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Sorry to hear of your misfortune... I did the same thing when I took my A+ classes. Dove right into my computer, took off the heat sink to clean it, and the chip was stuck to the heat sink! But I made sure to put it back carefully enough. I feel your pain though, because i just spent hours and hours trying to replace my motherboard in my HPm9350f with no luck. The system is 3 years old, and it's not worth it. I concluded that I'd be better off just building a whole new system, with upgradeable parts.
Many valid points here from others, and it being an HP/Compaq is not any better news. They "tattoo" the recovery discs to their motherboard. I am not 100% sure this will affect your model though I am 95% sure, but it will be something that you should research when replacing it the motherboard. Google it. Most of the time, you can get away with it if you buy the EXACT model of mobo with the EXACT bios since the bios and os are "tattooed". Then the OS should install fine. As far as the CPU goes... you bent the pins, and i don't know how bad you bent them, but you might be buying that too.
How bad is the cpu bent?
What is the exact model number on your mobo? Is it an ASUS K8S-LA ? (Salmon-GL6E)
What operating system?
I will try to help a little. I have been researching this stuff intensly the past few weeks and it's still pretty fresh to me.
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If the cpu didn't go in at all (NONE of the pins went in), you are probably in better shape. Depending on how many times you turned it on and off.
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Sorry to hear of your misfortune... I did the same thing when I took my A+ classes. Dove right into my computer, took off the heat sink to clean it, and the chip was stuck to the heat sink! But I made sure to put it back carefully enough. I feel your pain though, because i just spent hours and hours trying to replace my motherboard in my HPm9350f with no luck. The system is 3 years old, and it's not worth it. I concluded that I'd be better off just building a whole new system, with upgradeable parts.
Many valid points here from others, and it being an HP/Compaq is not any better news. They "tattoo" the recovery discs to their motherboard. I am not 100% sure this will affect your model though I am 95% sure, but it will be something that you should research when replacing it the motherboard. Google it. Most of the time, you can get away with it if you buy the EXACT model of mobo with the EXACT bios since the bios and os are "tattooed". Then the OS should install fine. As far as the CPU goes... you bent the pins, and i don't know how bad you bent them, but you might be buying that too.
How bad is the cpu bent?
What is the exact model number on your mobo? Is it an ASUS K8S-LA ? (Salmon-GL6E)
What operating system?
I will try to help a little. I have been researching this stuff intensly the past few weeks and it's still pretty fresh to me.
Good to hear I'm not alone. ;)
Yes ASUS K8S-LA is the motherboard with Windows XP operating system.
I'm leaning towards buying a new case, cpu and mobo. Hopefully I can use his HDD and his Optical Drive.
Anyone see any possible snafu's using his HDD and his DVD Drive?
I've always wanted to build from scratch. It'll cost me but I can chalk it up to an investment into my education.
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You'll need the operating system too, because the mobo is "tattooed" with the OS. And a new mobo, is new computer. But you can get away for $100 or less buying the Athlon 64 3400+ 2.4 GHz it came with, if the mobo isn't fried.
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You'll need the operating system too, because the mobo is "tattooed" with the OS. And a new mobo, is new computer. But you can get away for $100 or less buying the Athlon 64 3400+ 2.4 GHz it came with, if the mobo isn't fried.
These proprietary companies really go out of their way to stick it to you. How is the mobo "tatooed" with the OS?
The original plan was to wipe his HDD and then install windows Vista OS. That wouldn't have worked regardless then eh'?
Fortunately we got all his important data off the drive before I started messing with it.
All this stuff is even more reason I don't want to replace the PC with parts that are proprietary in nature and just start new with ATX Form Factor.
About the HDD and the DVD drive...please don't tell me those are some how tatooed as well or have proprietary elements to them.
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"what is a mobo tattoo" http://www.wisegeek.com/what-is-a-motherboard-tattoo.htm
The original plan would've worked fine. If it was a brand new vista OS and not one that has been used before, it would then re-tattoo itself to the bios, and the old xp would be replaced.
The HDD and disk drive aren't fixed to anything.
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I have transferred to other motherboards before. Actually the problem might come up if you have a drastic change in the BIOS version. If that happens, you will be forced to call Microsoft. If that happens, when I explained that I just did a BIOS upgrade, they went ahead and OKed my installation.
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My wife would kill me if I did any pro boner work!
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You know.. This whole thing reminds me of a saying that I learned in the military. If you ask someone for help or directions and the first words from their mouths is "It's easy." Go somewhere else!
1) It is probably never that easy.
2) They are idiots.
or 3) They will inevitably leave some detail out of the instructions when explaining it to you.
Possibly a combination of them as well:)
Don't get discouraged though my friend. Even in the professional IT world mistakes are made constently and few mistakes are impossible to recover from. You will be fine.
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Some tips (having built a good 25-30 computers from scratch in my lifetime):
- It's actually a good sign that the CPU and heatsink are bonded together. That means they're tight fitting
- Once you separate the CPU and heatsink, alcohol wipes are your best best for cleaning off ALL residue before re-seating the CPU and heatsink
- When reapplying thermal paste, you don't want it covering the CPU like honey. It is ONLY supposed to cover the tiny imperfections on the metal (even though it seems perfectly smooth). Therefore, you want to apply a TINY amount and then use an old credit card to smooth it over the entire surface. You should be able to see any text or markings on the back of the CPU THROUGH the thermal paste. If you can't see any of the metal under the thermal paste, you used WAY too much!
- Bent CPU pins can be fixed fairly easily using a small pair of needle-nosed pliers. I've bent a few pins in my days and you can straighten them out quite well but inserting the pliers vertically and rotating them around the pin then pinching to straighten it out from all angles.
- If you're trying to re-insert the CPU, make sure you open the lever that allows you to re-seat the CPU, otherwise you're trying to jam the CPU into holes that are not aligned (in which case you'll probably bend the pins, see tip above)
If you have any other questions, don't hesitate to ask!