Few questions regarding OC'ing

MadTom

Senior member
Sep 4, 2002
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As I finally arranged to get AS3 (from Germany, and myself living in Croatia - found only AS2 here), a bigger fan with fan adapter and so on, I was wondering:

1. In the AS3 applying instruction from the Arctic Silver webpage it is mentioned (few times stated...) that the best way to clean the surface of the cooler is Isopropyl alcohol which I don't know where to get. I tried in a drugstore (pharmacy) but they don't seem to have something like that. However, I do have acetone (nail polish!). Will acetone suffice? Or, what kind of shop I should check out for isopropyl alcohol?

2. Going from a 60mm fan to a 80mm via a adapter. Should I turn it to blow towards the cooler or from the cooler? The same for the case fan closest to the processor - somehow I've the feeling it would be better to blow air from outside directly to the processor (at the moment it is pulling air out of the case, but as I've a big tower I could go that way, too).

3. What do you use for protecting your PC of dust coming into the case?

4. What is your experience regarding PCI/AGP speeds? If I couldn't hit 166, but only 150, let's say, should I go with a high PCI/AGP of 38/87 or 30/60? Of course, assuming other components don't have problems with the high FSB speed. To be honest, just for testing purposes, I reached those 150 with default voltage on my 8IGX, unfortunately it was to unstable then... And yes, there is no aGP/PCI lock.

Let me share your experience and opinions.

BTW, I've an 1.6A, at the moment running on default voltage, 134 BUS, RAM at 354 2-5-3-3 (could live with 333 2-5-2-2, at 166FSB). It's a Samsung 512MB PC2700 DDR stick. Temps are 38-39 idle, and up to 56 under heavy load (imagine - got higher temps with playing Jedi than running Prime). Because of the high temp I've to apply the AS 3 - using an Glacialtech Diamond 4000 which I find rather OK. At the moment there is only the grease which came with the Glacialtech, but I would really like to remove this stuff.

So, hope I haven't bored you to much, thanks for any help.
 

rogue1979

Diamond Member
Mar 14, 2001
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The artic silver will help lower your temps by a few degrees. Most heatsinks perform better with the air blowing down on the heatsink. The purpose of using alcohol to clean the core of the cpu is to remove all impurites including oil from finger prints. You can use a dish soap solution on a clean moist cloth and get almost the same results. Wrap your finger in plastic and smear a thin coat of AS on there, you should be fine. Usually a 37MHz pci bus is OK for most components, perhaps reaching the 150MHz fsb speed needed a small boost in core voltage. Don't go over 1.70v or you will put the P4 at serious risk. Download Prime95 to check cpu stability. If your board has a 1/5 pci setting then that would be better for your AGP/PCI bus and for yor memory performance. If your cpu is capable of 2650MHz (166MHz fsb), it will most likely need more than stock voltage. Try raising your DDR voltage to 2.8-2.9v and relaxing the memory timings a little.
 

LazyBastard

Member
Nov 18, 2002
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Isopropyl Alcohol is sometimes called "Rubbing Alcohol" at the pharmacy. I can't imagine a pharmacy that doesn't stock it. Go to a different pharmacy.

The fan you're using with the 60 to 80 adapter is the CPU fan? Just test it blowing and sucking, and use the method that gives the lowest temps.