What is the BEST heatsink for Pentium 3 coppermine???

[Muadib]

I know that it used to be alpha, but it still true? No water or fridge type cooling.
Thanks!!!

 

[Viper GTS]

Probably the Alpha PAL6035. Other good contendors include the HedgeHog 238A and the Agilent ArctiCooler.

Viper GTS

 

[Mikewarrior2]

You forgot the PEP66 . An FOP38 will also do well, but the performance drops off radically if you don't use the 38CFM fan.


Mike

 

[gdogfib]

I recommend the Alpha PEP66 as well. It rocks!!

 

[office boy]

PEP66 great always

 

[BlueWeasel]

I am not familiar with the Alpha PAL, but here's my vote for the PEP66. I was using a Gorb to cool my O'Ced Celeron (566@850) before, and I lowered my CPU temps 2-3 degrees C when I switched to the Alpha.

 

[Syborg1211]

PEP66 and PAL are on par with each other, but both are the best. Paired with a Delta fan and peltier and you got one fine cooler.

 

[Muadib]

Viper GTS
I read a review on the ArctiCooler that said that it did a better job than any Alpha. Do you agree, or is that bs? I can't find anyone that has it anyway, but I'd wait if it did.

BlueWeasel
I have a Gorb now, but it now has this high pitch whine & has to go. Is that why you ditched yours?



Syborg1211
I've been down on peltiers since my AMD K6 233 days. I had one kill 2 cpus & got a new motherboard, before I realized it was the problem. This was after the guy I got it from swore it would cool a K6. I didn't have any problem returning it though. Have they improved?

 

[Eug]

The Alpha PAL and PEP66 are probably the best, but if you value your sanity, do not get the 38 cfm Delta fan. A good 30 cfm or less fan should be fine. In fact, I have a 26 cfm Sunon fan with mine, and I've had this thing jacked up to 1.9 V for months. An Alpha with an above average fan will do a lot more than a cheap sink with a Delta. It's all in the fins... My guess is that adding the Delta to an Alpha PEP66 only increases the performance by a small amount, but I haven't seen any tests saying either way.

 

[Mikewarrior2]

Kyle's Arcticooler was better than his pal6035. However, most shipping arcticoolers do not have a finished bottom(they generally are poorfly finished/unsmooth), plus a modified clip that, in most cases, have the arcticooler performing slightly behind the pal series of Alpha's.


Mike

 

[Syborg1211]

My PEP66 has a built in copper plate that really helps in its performance. It is great. The only reason you could screw something up with today's peltiers is if you dont provide sufficient cooling for it and if you don't take care of the condensation. The peltier gets so cold that it produces condensation and cause damage if you don't take care of it somehow with a faom covering or what not.

 

[Muadib]

It sounds like the PEP66 is the way to go. Is there anyplace that sells it as well as panaflos? And while I'm at it, is the delta the only fan that I should look out for that might come with the PEP?

 

[Mikewarrior2]

the PEP will perform well with any heatsink, you don't need the delta 38CFM. IT will maximize peformance, but you can get by with the Sunon/YStech easily. The quietest stock fan would be the Plycon sold alpha's, with the Sanyo-Denki fans(alpha's default choice of fans for their heatsinks).


Mike

 

[thermite88]

I compared the Golden Orb, Chrome Orb and Alpha FCPGA-35t on a P3-700 overclocked to 933 MHz @ 133 FSB at 1.75 volts vcore. The limit of my CPU is 1.0 GHz @ 143 FSB at 1.9 volts vcore. The Coppermine is such an efficient design, all of them provide sufficient cooling with a large margin to the Intel ultimate spec. Using the Alpha FCPGA-35t and ArticSilver, the CPU never went more than 10C (18F) above case/MB temperature running Prime95 loop. All HSF are completely stable running Prime95 loop.

There is some appeal for the Chrome Orb. It cools just a hair better than the Golden using the same space and cools almost as well as the Alpha using much less space. The Alpha cools 10F better than the Golden Orb at full load, and 3F better at idle, but it blocks off two of the four memory slots in the Asus P3B-F. The Chrome Orb with Arctic Silver cools as well as the Alpha and blocks only one memory slot. The Golden Orb is good enough for the overclocked P3-933 with absolutely no stability problem. Mechanically speaking, it is the most stable of the three.

There is one warning about using the Chrome Orb on Coppermine CPU. The Chrome Orb comes with the Chomerics T-725 phase change thermal interface material when shipped from Thermaltake. The Chomerics T-725 is designed for the Duron/Thunderbird which generate a lot of heat. It will not become effective until high heat is applied to it. Since the Coppermine runs a lot cooler than AMD CPU's, it is not hot enough to cause the phase change. The Chomerics T-725 is a very poor thermal interface for the Intel CPU. Scrap the Chomerics T-725 (relatively thick light brown sticky stuff) off the heat sink and clean it with paint thinner before using it on coppermine.

 

[office boy]

For those that still have clearance problems with the alpha
Look here. http://www.overclockers.com/tips245/
I did almost the same thing with on of my alpha's, but instead mounted the shroud a bit higher (so I didn't have to cut it) and then taped open side of the alpha closed. So there is an equal amount of space on both sides of the alpha. (Does that make sense?)

 

[han888]

artic cooller! i just replace my alpha pal35t with artic cooller, and it's work great here!