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Question about temperature

post #1 of 17
Thread Starter 
Hi,

I just replace my AMD stock fan and heat sink with a Zalman CNPS9500, Fan Speed reading out from Asus PC Probe program is 2410RPM, I have notice the temperature is not getting any better at all.
with a stock heatsink+ fan, the temp around 42 idle and up to 51 w/ load.
with the Zalman heatsink+fan, the temp from 46 idle and up to 50 with midium of load.
Any recommendation ?
I spent $75 for the Zalman but it seems did not do any good at all
post #2 of 17
what thermal paste did you use? AS5? and is the cooler mounted correctly and tight on the cpu?
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post #3 of 17
Thread Starter 
the thermal grease came with the Zalman package (CSL 850). Here is aupdate for my temp. Yeah... I follow instruction how to install the heatsink of the Zalman manual, actually only tight the clip both end down to the motherboard
Ran the Aquamark3, temp goes up to 55. I am afraid
post #4 of 17
some thing isnt right... you should go out and get some arctic silver 5 and use that... and how did you clean the the cpu off? did you use rubbing alcohal and a lint free cloth or q-tip,then after its clean not tough those surfaces. and how is airflow in the rest of the case? what other intake and exhaust fans do you have in the case?
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post #5 of 17
Thread Starter 
the exhaust about 1/2" above the Zalman heatsink, I did clean the CPU, just put the grease on and spead it out then placed the heatshink over an tight it .
Maybe I have to use the AS5 and redo it.
Do you think Best buy have AS5 ?
post #6 of 17
You also need to be careful on the amount of thermal paste to use. Many people make the mistake of using too much. Just a rice sized piece in the middle of the IHS. Do not place any on the heatsink. Do NOT spread it out.

When you install the assembly make certain to tighten from side to side a turn or two at a time. Be sure to tighten it enough and remember that you need some time to let the thermal paste cure.

Set load for five hours. Shut down for another five hours. Do this for a week or so and you should notice a drop of ~3 or more degrees on the cure.

Remember that the stock assemby had cured.

R
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post #7 of 17
i dont htink best buy carries it... maybe a computer should would though like compusa or something... newegg.com doen for sure...lol

what intake fans do you have?
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post #8 of 17
Quote:
Originally Posted by Ropey
You also need to be careful on the amount of thermal paste to use. Many people make the mistake of using too much. Just a rice sized piece in the middle of the IHS. Do not place any on the heatsink. Do NOT spread it out.

When you install the assembly make certain to tighten from side to side a turn or two at a time. Be sure to tighten it enough and remember that you need some time to let the thermal paste cure.

Set load for five hours. Shut down for another five hours. Do this for a week or so and you should notice a drop of ~3 or more degrees on the cure.

Remember that the stock assemby had cured.

R
he used the stock silicone paste... which doesnt cure, every time it gets warm, it becomes thin and liquidy, then when it cools it becomes viscous.there is no cure time involved for silicone like there is for AS5.
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post #9 of 17
Thermal compound should be a real thin layer (not gloppy!).
Thermal compound also takes several days to burn in before you'll notice any real improvement.
Case air flow is very important. A good heatsink can't work well without case ventilation. Keep the rear of the case off the back wall. A rear exhaust fan helps a bunch. Clean wiring also helps airflow.
Sometimes the heatsink isn't seated properly (recheck if in doubt).
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post #10 of 17
Quote:
Originally Posted by pbasil1
he used the stock silicone paste... which doesnt cure, every time it gets warm, it becomes thin and liquidy, then when it cools it becomes viscous.there is no cure time involved for silicone like there is for AS5.
Yes, I was explaining on how to apply the thermal paste AS5 that you advised him to get. There is a cure with thermal silicon paste though. Just that the silver cures better.

Quote:
Originally Posted by factsfacts.com
If silicone does not cure it makes a godawful mess. Most manufacturers specify a shelf life of 1-year from date of manufacturer for silicone caulk in unopened tubes. I've not seen times for partially used tubes. Silicone will last longer than a year, but if it's old you must test it to see if it is going to cure. Silicone does not air dry, it has a curing agent.
http://www.factsfacts.com/MyHomeRepair/caulk.htm

Why would I advise him to apply a method of a thermal paste that is not good especially since you advised him to use the AS5? And why would I advise him on a previous installation? It's already completed.

Quote:
Originally Posted by Zalman Thermal Substrate Patent
Zalman Silcon Thermal Paste Patent # 5593732

Method wherein said organopolysiloxane of said release layer contains terminal silicon-bonded hydroxyl groups and has viscosity in the range of about 1,000 to 50,000 cps at 25.degree. C.; organic groups in said organopolysiloxane of said release layer are selected from monovalent hydrocarbon radicals and halogenated aryl radicals, said organic groups are attached to said organopolysiloxane by means of carbon-silicon bonds; said alkyl silicate of said release layer is selected from monomeric organosilicates defined by the formula: ##STR5## where R and R'' are individually selected from alkyl groups and halogen-substituted alkyl groups, and R'' additionally is selected from aryl, aralkyl, alkaryl, alkoxy, aryloxy groups, and halogenated derivatives thereof; said first curing agent of said release layer is selected from a metallic salts of an organic monocarboxylic acid in which the metal is selected from lead, tin, zirconium, antimony, iron, cadmium, barium, calcium, titanium, bismuth, manganese, and mixtures thereof; said organopolysiloxane of said bonding layer contains terminal silicon-bonded hydroxyl groups and has viscosity in the range of 1,000 to 20,000 cps at 50.degree. C. in which the organo groups are free of alkenyl radicals and are selected from monovalent hydrocarbon radicals, halogenated monovalent hydrocarbon radicals and cyanoalkyl radicals; said bonding layer contains cross-linked particulate matter generated in situ.
@ Lenzo. There should NOT be a layer. This is NOT good advice. A rice sized piece set in the middle and one allows the weight of the assembly to flatten the piece.

R
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