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-- Alpha PAL8045 Heatsink
-- Category: Review
-- Posted by: GideonX
-- Posted on: 2001-11-09
-- Price: ~ $39.99 USD
-- Pages: 1 2 [ 3 ]
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One thing to note, this unit is large so please check and double check that your case and more importantly your motherboard can support it.  On our IWill KK266 test rig, the unit stuck out a little bit more than we liked:

   Not a big problem since we have ample room to work with.  Check Alpha's website for motherboard compatibility.  Hopefully they will update that page with more information as they test more motherboards.

   Our trusty old test rig is as follows:

  • IWill KK266 Socket A Motherboard

  • AMD Thunderbird 800Mhz CPU

  • Crucial PC133 CL2 Ram, 128MB

   The test will consist of an idle temperature check and a full load temperature check.  The full load will be accomplished by using the RC5 program and running 3DMark 2001 for 30 minutes.  Arctic Silver II Thermal Paste used without a doubt.

   Here are some results: 


AMD Tbird 800 Stock

AMD Tbird 800 @ 1003 (1.85V)

Ambient Temp. ~ 27C Idle Full Load Idle Full Load
ThermalRight SK-6 31C 34C 36C 40C
GlobalWin CAK38 34C 37C 38C 42C
ThermalTake Dragon Orb 3 35C 37C 38C 43C
Vantec CCK-6035D 32.5C 35.5C 36C 42C
Swiftech MCX370-0A 31.3C 33.7C 34.3C 38.5C
SVC Golden Gate 40 33.5C 36C 39.5C 43.5C
Thermal Take Volcano 5 35.9C 37.5C 39C 43.8C
Thermal Take Volcano 6Cu 35.6C 37.4C 38.6C 43.3C
Thermal Take Volcano 6Cu+ 35.2C 37C 38.2C 43C
Bits Power NP60D 31.3C 35.2C 36.7C 42.4C
Bits Power NP80D 31C 34.8C 36.5C 42.4C
 Dynatron DC1206BM0 31C 33.5C 37.2C 40.6C
Vantec CCk-6027D 31.8C 34.9C 35.7C 41.5C
Alpha PAL8045 31.5C 32.8C 34.8C 38.1C

   These numbers are actually not that surprising, I sort of expected this drop in temperature in using this unit.  It isn't copper based, but a hybrid of aluminum with a copper embedded base.  This combination proves to be a success as seen in these tests.  Please also note, this unit is quieter than the screaming 60mm Delta fans!  A strong and quiet unit, always a plus in our books.

   Overall, if you have the cash, this is the cooler to get.  Hands down, it beats out the rest of the pack in almost all the speed tests.  The best proof of its great performance is the lowest temperature at the highest overclock on this chip.  Granted, this is only at 1Ghz, but pitted against the other units, this turns out to be a good indication of what the PAL8045 can do.  If you get the 8045U, I am sure the temperatures will be even lower considering that the Delta fan pumps out about twice as much CFMs as the Sunon fan we used.

   Thanks to William at Heatsink Factory for sending us this new unit.  If you need any heatsink solutions, get 'em at the factory.


  • Great performance
  • Option to choose with or without ear splitting fan
  • No clip installation, a lot more secure for a heatsink this size
  • Very detailed instruction manual

  • Cons:

  • May be a bit pricey, but what is money when you can get the lowest temps for you CPU
  • Installation requires motherboard that supports it

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