Question about LGA 775 cooler backplate adhesive tape.
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From: Bozothedeathmachine on 14 Jan 2010 15:58 Hi, all. I just got a used LGA 775 CPU and cooler. The backplate for the cooler was attached to the MB with some kind of tape. I finally got it off, but destroyed the tape. The tape looked like the insulating anit- static stuff HW ships in. Is that correct? I'm looking for a replacement to put it on my new mobo, but can't find it anywhere. Do I need this stuff, or will normal double-sided tape do? There's some metal solder exposed on the bottom of the board and I don't want to short anything by not having proper insulation. Thanks.
From: Flasherly on 14 Jan 2010 16:54 On Jan 14, 3:58 pm, Bozothedeathmachine <bozothedeathmach...(a)gmail.com> wrote: > Hi, all. > > I just got a used LGA 775 CPU and cooler. The backplate for the cooler > was attached to the MB with some kind of tape. I finally got it off, > but destroyed the tape. The tape looked like the insulating anit- > static stuff HW ships in. Is that correct? I'm looking for a > replacement to put it on my new mobo, but can't find it anywhere. Do I > need this stuff, or will normal double-sided tape do? There's some > metal solder exposed on the bottom of the board and I don't want to > short anything by not having proper insulation. > > Thanks. Heatsink adhesive for directly attaching to the CPU. Garbage compared to better compounds. You risk burning your CPU up without a replacement. Go over to Newegg and look up CPU thermal paste, and look around at some hardware sites for how to put the stuff on.
From: Paul on 14 Jan 2010 16:57 Bozothedeathmachine wrote: > Hi, all. > > I just got a used LGA 775 CPU and cooler. The backplate for the cooler > was attached to the MB with some kind of tape. I finally got it off, > but destroyed the tape. The tape looked like the insulating anit- > static stuff HW ships in. Is that correct? I'm looking for a > replacement to put it on my new mobo, but can't find it anywhere. Do I > need this stuff, or will normal double-sided tape do? There's some > metal solder exposed on the bottom of the board and I don't want to > short anything by not having proper insulation. > > Thanks. The purpose of using double sided tape, is to hold the plate in place when no heatsink is attached to the top of the board. If there is any danger of the plate touching copper conductors or solder blobs, then you should at least place an insulator in the way. If the tape has sufficient density when compressed, it may provide that insulation as well. If you don't use double sided tape, then you may need to have the whole PCB out of the case, while working on your heatsink/fan. That way, you'll be able to visually check the backplate is securely in place, and not have it break loose when removing the heatsink on the top of the motherboard. (I have to do that with my current computer - take it all apart, if the CPU heatsink/fan needs work.) When selecting a plastic to use as an insulator for the plate, select something that has good "puncture resistance". As an example of what not to use, you'll notice that green garbage bags are particularly bad about things like that. The plastic used in overhead transparency slides (for doing Powerpoint presentations with an overhead projector), seem to be pretty good. Multiple layers of that kind of plastic, likely would not be punctured all the way through, if used as an insulator. The black foam that leaded ICs used to ship in, may compress too much, and wouldn't be my first choice as a solution. If you need double sided tape, one place to look in the hardware store, is in the area they keep the "window insulation kits". I remember getting a roll of double sided tape from there. A "window insulation kit" is a supply of double sided tape, plus cheap plastic sheet, that goes over the interior of your home windows, to prevent condensation in the winter. The double sided tape holds the plastic film, to the wood of the window frame. Paul
From: GlowingBlueMist on 14 Jan 2010 18:05 Paul wrote: > Bozothedeathmachine wrote: >> Hi, all. >> >> I just got a used LGA 775 CPU and cooler. The backplate for the >> cooler was attached to the MB with some kind of tape. I finally got >> it off, but destroyed the tape. The tape looked like the insulating >> anit- static stuff HW ships in. Is that correct? I'm looking for a >> replacement to put it on my new mobo, but can't find it anywhere. Do >> I need this stuff, or will normal double-sided tape do? There's some >> metal solder exposed on the bottom of the board and I don't want to >> short anything by not having proper insulation. >> >> Thanks. > > The purpose of using double sided tape, is to hold the plate > in place when no heatsink is attached to the top of the board. > > If there is any danger of the plate touching copper conductors or > solder blobs, then you should at least place an insulator in the way. > If the tape has sufficient density when compressed, it may provide > that insulation as well. > > If you don't use double sided tape, then you may need to have the > whole PCB out of the case, while working on your heatsink/fan. That > way, you'll be able to visually check the backplate is securely in > place, and not have it break loose when removing the heatsink on the top > of the motherboard. (I have to do that with my current computer - take > it all apart, if the CPU heatsink/fan needs work.) > > When selecting a plastic to use as an insulator for the plate, select > something that has good "puncture resistance". As an example of what > not to use, you'll notice that green garbage bags are particularly > bad about things like that. The plastic used in overhead transparency > slides (for doing Powerpoint presentations with an overhead > projector), seem to be pretty good. Multiple layers of that kind of > plastic, > likely would not be punctured all the way through, if used as an > insulator. > > The black foam that leaded ICs used to ship in, may compress too much, > and wouldn't be my first choice as a solution. > > If you need double sided tape, one place to look in the hardware > store, is in the area they keep the "window insulation kits". I remember > getting a roll of double sided tape from there. A "window insulation kit" > is > a supply of double sided tape, plus cheap plastic sheet, that goes > over the interior of your home windows, to prevent condensation in > the winter. The double sided tape holds the plastic film, to the wood > of the window frame. > Paul If you need to make a plastic insulator for a mounting plate that goes under the motherboard here is a suggestion. The plastic from the side of a gallon milk bottle cuts well with a good pair of scissors and is quite puncture resistant as well as non-conductive. Cut it to match the plate, punch the holes needed for the mounting screws and have at it. As already mentioned the tape is really only needed if you plan to remove/replace the fan assembly while the motherboard is still inside the case. If you always remove the motherboard from the case to replace the CPU fan assembly then you don't need it.
From: GlowingBlueMist on 14 Jan 2010 18:08
GlowingBlueMist wrote: > Paul wrote: >> Bozothedeathmachine wrote: >>> Hi, all. >>> >>> I just got a used LGA 775 CPU and cooler. The backplate for the >>> cooler was attached to the MB with some kind of tape. I finally got >>> it off, but destroyed the tape. The tape looked like the insulating >>> anit- static stuff HW ships in. Is that correct? I'm looking for a >>> replacement to put it on my new mobo, but can't find it anywhere. Do >>> I need this stuff, or will normal double-sided tape do? There's some >>> metal solder exposed on the bottom of the board and I don't want to >>> short anything by not having proper insulation. >>> >>> Thanks. >> >> The purpose of using double sided tape, is to hold the plate >> in place when no heatsink is attached to the top of the board. >> >> If there is any danger of the plate touching copper conductors or >> solder blobs, then you should at least place an insulator in the way. >> If the tape has sufficient density when compressed, it may provide >> that insulation as well. >> >> If you don't use double sided tape, then you may need to have the >> whole PCB out of the case, while working on your heatsink/fan. That >> way, you'll be able to visually check the backplate is securely in >> place, and not have it break loose when removing the heatsink on the >> top of the motherboard. (I have to do that with my current computer >> - take it all apart, if the CPU heatsink/fan needs work.) >> >> When selecting a plastic to use as an insulator for the plate, select >> something that has good "puncture resistance". As an example of what >> not to use, you'll notice that green garbage bags are particularly >> bad about things like that. The plastic used in overhead transparency >> slides (for doing Powerpoint presentations with an overhead >> projector), seem to be pretty good. Multiple layers of that kind of >> plastic, >> likely would not be punctured all the way through, if used as an >> insulator. >> >> The black foam that leaded ICs used to ship in, may compress too >> much, and wouldn't be my first choice as a solution. >> >> If you need double sided tape, one place to look in the hardware >> store, is in the area they keep the "window insulation kits". I >> remember getting a roll of double sided tape from there. A "window >> insulation kit" is >> a supply of double sided tape, plus cheap plastic sheet, that goes >> over the interior of your home windows, to prevent condensation in >> the winter. The double sided tape holds the plastic film, to the wood >> of the window frame. >> Paul > > If you need to make a plastic insulator for a mounting plate that > goes under the motherboard here is a suggestion. The plastic from > the side of a gallon milk bottle cuts well with a good pair of > scissors and is quite puncture resistant as well as non-conductive. Cut it > to match the plate, punch the holes needed for the mounting > screws and have at it. > As already mentioned the tape is really only needed if you plan to > remove/replace the fan assembly while the motherboard is still inside > the case. If you always remove the motherboard from the case to > replace the CPU fan assembly then you don't need it. I meant to add that the tape can also double as an insulator if the mounting plate is metal or you don't make a plastic insulator to go between the plate and the motherboard. |