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Primalelectron
4 Posts
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1033
January 18th, 2023 11:00
Help unscrewing optiplex 790MT heatsink
Greetings ,
i've been trying to upgrade my dell optiplex 790MT from an i3 to an i7, but can't manage to unscrew the heatsink off the motherboard I tried first both screwdrivers PZ 1X100mm and pz2 X100 mm with no results.
I then bought Philips screwdrivers P1 and P 00, but i'm facing the same issue the screws wont move at all... am i doing something wrong?
Does anyone know which screwdriver model exaclly i should use to remove the scews from my heatsink please?
Kind regards
426
1
Posted January 18th, 2023 15:00
If you're not having any luck with Philips screwdrivers, try a standard slot screwdriver that's the right fit. I've done it before.
Also, sure it's not already loosened?
453
1
Posted January 18th, 2023 11:00
A standard Phillipps head #1should do it. The screws are spring loaded so you may have to press down while turning counterclockwise. After the screws loosen then turn the heat sink slowly back and forth to break the paste retention on the CPU. This YouTube video should help.
I am not a Dell employee...I am forum volunteer
Serious work on an E5430 and constantly building and working on an i5-6500 Desktop
448
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Posted January 18th, 2023 12:00
Hi , I tried the ph1 that i just bought earlier but didnt work , here's a picture of it , is it me or is small compared to the one shown in the video
Thank you for the reply and the video link
428
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Posted January 18th, 2023 14:00
Yes i try making contact but when i rotate nothing happens if i force it , it just turns in the void without rotating the screw.. i tried the screwdriver on the motherboard screws and it does seem to work but i noticed that this heatsink has different screws heres a picture
I have ordered a professional set of screwdrivers that will be arriving tomorrow i hope it will work
425
1
Posted January 18th, 2023 15:00
May need to remove fan first.
426
1
Posted January 18th, 2023 15:00
Can you post a larger shot of the whole CPU cooler? For some reason this does not look right as compared to the service manual.
I am not a Dell employee...I am forum volunteer
Serious work on an E5430 and constantly building and working on an i5-6500 Desktop
411
0
Posted January 19th, 2023 06:00
Apologies for not replyng, just got home from work,
I did what you guys recomended me about the philipps screwdriver; the one i used before was defective , tried another one and it worked
Thank you for your support
392
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Posted January 19th, 2023 09:00
Happy to help out! I have to admit that was a new situation for me..very strange.
I am not a Dell employee...I am forum volunteer
Serious work on an E5430 and constantly building and working on an i5-6500 Desktop
56
0
Posted January 19th, 2023 10:00
I'm guessing the handle turned but not the screwdriver?
JOcean
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12621 Posts
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432
1
Posted January 18th, 2023 13:00
Strange as it looks like it should work. Can you confirm that the screwdriver makes proper contact with the screw heads? The only thing I can guess is that somewhere along the line non-standard screws were used similar to either Torx heads or the screws were over torqued when tightened.
I am not a Dell employee...I am forum volunteer
Serious work on an E5430 and constantly building and working on an i5-6500 Desktop