any CPU/Heatsink Fan w/o putting any thermal paste on it?
- Thread starter DavidTan
- Start date
It will work, but when you should get about 40 degrees it will be maybe 60+. Definately always put paste on.
- Aug 22, 2001
- 32,121
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Well, for years now I've been building systems with no thermal paste. On my old Celeron 433, I ran it with stock cooling at 488mhz with no goop. On my Celeron 533a I ran it with a Golden Orb at 880mhz, just the thermal sticker that it came with it as a thermal interface. On my most recent rig, a 1200 T-bird running at 1323mhz, I just have my FEP-32 on it with no paste.
This is all changing. Yesterday I ordered a new cpu, mobo, and ram and I have a fresh 3g tube of ASIII waiting for it
But yeah, you can do it, just don't.
This is all changing. Yesterday I ordered a new cpu, mobo, and ram and I have a fresh 3g tube of ASIII waiting for it
But yeah, you can do it, just don't.
Jeff7181
Lifer
- Aug 21, 2002
- 18,368
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Originally posted by: batmizang
that "tape" on the cpu IS thermal paste.(elite rolling eyes)
No... the "tape" is phase change material... in no way is it a paste. This is what AMD recommends because there is no chance of thermal pumpout, which is said to occur over time and after many hot/cold cycles... which I doubt is a huge problem because we're only talking about a microscopically thin film of thermal interface materal between the two surfaced. But either way... if you use something other than the PCM that comes on the retail heatsink, AMD can choose not to honor any warranties on your retail CPU.
Well, when people will pay $60 for a heatsink that'll drop the temp 10 C over a cheapo, it doesn't make a lot of sense not to put some TIM between the sink and the slug, which may drop the temp 30 degrees. The more heat the CPU puts out, the worse it gets.
Both the pads and goo are TIMs (Thermal Interface Material). They fill in the molecular irregularities of the interface at best. Ordinary processes cannot make a material flat at the molecular level, so the direct contact area is a small fraction of the apparent area. At worst they fill in major gaps of non-flat, junky HSs. The worse the HS, the more you need the TIM. On the other side, nobody but an idiot would leave out the TIM after paying the bucks for a great HS.
There is more than one kind of pad. The good kind are phase change material, so called because they change from a solid to a fluid under heat and/or pressure. After a week they flow and squeeze out till they are about as thin as AS. Most of the ones I have seen are gummy or rubbery at room temp. I just got a sink that has another kind. It is a tape, sticky on the side that is stuck to the sink, then a foil (aluminum?) and then a delicate waxy coating, about the consistency of chocolate and the thickness of paint, on the part going to the CPU slug. Unfortunately the waxy stuff is so delicate that I scraped it so the foil shows by brushing it up against the plastic package, rendering it useless. ( As if I were going to use it But I would have liked to try it out.) I don't know how you could clip the HS on without trashing that coating in the process.
The supreme guru on the OC newsgroup when I used to read it used only pure margarine as his TIM. (Yes the butter substitute. But the newer crop of low calorie stuff has other junk in it besides pure hydrogenated oil.) Toothpaste ought to work as a temporary measure, at least until it dries out and hardens up. Even the low priced HSs I have got generally include a teeny pack of goo, enough for several applications to an Athlon. Put some plastic wrap on your finger and smear enough TIM on the CPU slug so it looks covered. No need to butter it up; it's going to squeeze out anyway, and it will make a mess. Put just enough on the HS where it will contact the slug to be visible but look almost dry.
Both the pads and goo are TIMs (Thermal Interface Material). They fill in the molecular irregularities of the interface at best. Ordinary processes cannot make a material flat at the molecular level, so the direct contact area is a small fraction of the apparent area. At worst they fill in major gaps of non-flat, junky HSs. The worse the HS, the more you need the TIM. On the other side, nobody but an idiot would leave out the TIM after paying the bucks for a great HS.
There is more than one kind of pad. The good kind are phase change material, so called because they change from a solid to a fluid under heat and/or pressure. After a week they flow and squeeze out till they are about as thin as AS. Most of the ones I have seen are gummy or rubbery at room temp. I just got a sink that has another kind. It is a tape, sticky on the side that is stuck to the sink, then a foil (aluminum?) and then a delicate waxy coating, about the consistency of chocolate and the thickness of paint, on the part going to the CPU slug. Unfortunately the waxy stuff is so delicate that I scraped it so the foil shows by brushing it up against the plastic package, rendering it useless. ( As if I were going to use it
But I would have liked to try it out.) I don't know how you could clip the HS on without trashing that coating in the process.The supreme guru on the OC newsgroup when I used to read it used only pure margarine as his TIM. (Yes the butter substitute. But the newer crop of low calorie stuff has other junk in it besides pure hydrogenated oil.) Toothpaste ought to work as a temporary measure, at least until it dries out and hardens up. Even the low priced HSs I have got generally include a teeny pack of goo, enough for several applications to an Athlon. Put some plastic wrap on your finger and smear enough TIM on the CPU slug so it looks covered. No need to butter it up; it's going to squeeze out anyway, and it will make a mess. Put just enough on the HS where it will contact the slug to be visible but look almost dry.
Whoa margarine? *looks at my english muffin* Mmmmm thermal interface material *drooool* Oh, so I don't get sued, you can't put Arctic Silver III on your english muffin or edibles it says "do not ingest" on the website. Hehe. Oh yea, any one use Shin Etsu here?
mechBgon
Super Moderator<br>Elite Member
- Oct 31, 1999
- 30,699
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Very nice analogy. Now why don't you like my nice Parrot avatar :disgust:Originally posted by: batmizang
hrmm, thats like putting no oil in your cars engine.
*borrows the Trout avatar from TheMagnificentCheese and smacks batmizang with it*
Just bought the Thermalright 900 heatsink but I don't think it comes with any sort of thermal heat transfer material... Can anyone make any recommendations as to which thermal paste or pad I should buy? I prefer thermal pads if they make them (I've only seen them on the retail CPU/HSF combos), less messy.
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