Tennmax TNT Detonator Cooler - Page 2
The Test System  
  • Intel Pentium III 450 MHz (overclocked to 558 MHz @ 2.1V)
  • Abit BX6-R2 (MN BIOS)
  • Spectek 64MB x2, LGS 64MB x1 (all rated to operated at 125 MHz)
  • 300W PowerMan ATX
  • Creative 5x DVD-ROM
  • Yamaha CD-RW 4416S
  • Seagate 10.1GB UDMA/66, Seagate 4.3GB UDMA/33 and Seagate 3.4GB UDMA/33
  • Win98SE

Before starting to stress the TNT2U card / CPU:

  • Outside air ambient temperature: 26 degrees C
  • Card ambient air temperature: 35.5 degrees C
  • CPU temperature 40 degrees C

(PCI cards in order of slot distance from the AGP slot)

  • Creative 3D Blaster TNT2 Ultra 32MB (reference 2.08 drivers)
  • 12 MB Creative 3D Blaster Voodoo2 SLI
  • Adaptec AVA-2902 PCI SCSI card
  • Creative Encore Dxr2 DVD Decoder
  • Creative Soundblaster Live! Value

Temperature Measuring Equipment
The temperature of the TNT2U chip surface was measured by placing a type-k probe of a thermocouple as close to the chip as possible.

Card ambient air temperature was measured with a thermistor placed near the back of the CL TNT2U. CPU temperature was measured with an external probe supplied with the motherboard.

The Test Card
The Creative 3D Blaster TNT2 Ultra comes with 32 MB 5.5 ns Hyundai SDRAM. On continuous 3DMark loops the highest stable core setting was 165 MHz and highest memory speed was 210 MHz. The TNT2U chip surface temperature was 43.4 degrees C.

(Note: The card was overclocked with the Creative Overclocking Utility version 1.09).

Installing The Cooler
The hardest part of installing the Tennmax cooler was getting the original active heatsink off. The original heatsink was attached to the TNT2U chip using some kind of glue. Getting it off is a matter of breaking the brittle glue on a cool card I eased the old heatsink off using a flat head screwdriver, applying pressure carefully along the edges of the heatsink. It comes off pretty cleanly.

(Warning: Tampering with the original heatsink voids your warranty)

To remove the excess glue on the TNT2U chip, I used a glue removing gel purchased from the hardware section of Metro Tampines. The glue comes off almost immediately.  

Having a clean and flat contact surface is essential to ensure optimal cooling. The TNT2U chip surface was cleaned thoroughly using rubbing alcohol, following which a thin layer of silicon based heatsink compound was applied.

Installing the Tennmax cooler was simply a matter of fitting the push pins through the matching holes adjacent to the TNT2U chip and securing the pins.

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