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Spire SP741B3-U DiamondCool II

Date: Sunday, June 25, 2006
Author: Joe Di Figlia
Provided By: Spire SP741B3-U DiamondCool II
Page: 2 of 2



Mounting the heatsink is not so easy after you replace your stock assembly with the provided back plate. You just can't simply tighten down the screws. This is the tricky part... if you tighten them too much you don't get a proper seating, and if you don't tighten them enough you are in the same boat. After approximately 20 minutes of screwing around (literally) I finally got some temperatures that seemed reasonable. The perfect mount seems to be somewhere around where the springs on the screws are barely compressed. There is no indication in the instructions as to which direction the heatsink should be mounted either. I guess it doesn't matter with a big fat flat copper base. With all that out of the way I can get to the fat of the sandwich, the results.


spire  spire


The test rig is simple, I have my rig: ECS KN1-Extreme, an Athlon 64 3000+, an Albatron GFX 5750, some PQI Turbo 3200 (2x512), a bunch of HDD's (6 of them), an Antec TruePower 550 PSU, and all sitting inside my Lian Li PC-70. The testing will consist of a couple of numbers. There will be the idle temperature, the ambient temperature (room temperature), and the 100% load temperature. These numbers will be gathered in three runs for each idle and load environments. If you have read our earlier reviews, you will notice a difference in numbers here, I had a bit of bad luck and lost my spreadsheet for all the previous results on past heatsinks, so I will conduct them ALL OVER AGAIN! For these tests, the ambient temperature will be the temperature in the room not the case (as in previous tests). If the numbers look different from the last review, it's because of this reason. The CPU voltage is at 1.550V (for your reference).


charts


spire  spire


According to the numbers, it doesn't look like this heatsink performed at the level I was hoping for. The copper design and sleek looks didn't amount to much after the installation troubles. The asking price of around $36.00 doesn't make this a viable alternative to the stock heatsink you get when you purchase your retail processor. If looks will sway your decision and performing slightly better than stock is enough for you; then save your self some money by purchasing the OEM (vs. retail) CPU of your choice and slapping this UV reactive copper fat boy on your chip. Don't forget to invite your friends over to stare at the spider glowing inside your chassis.


charts


Bottom line, would I buy one? It certainly is quiet, but doesn't perform as well as the Freezer Pro which is just as quiet... Um... I am going to have to pass on this one. Sorry.


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