Dr. Thermal TI-V77 Heatsink Preview

Check out the clipping mechanism.  The clip itself is almost identical to Thermosonic except for one (big) thing.

The clip has a small shaft underneath that operates off a finger lever.  This lever when closed, puts extra pull on the clip effectively locking it in.

Notice the small 'hump' in the shaft.  This is what the lever operates that puts the pull on this beast.

The size of the cooler was quite impressive.  On our ABIT KT7A we didn't have any problems installing the Dr. Thermal at all.  If it was one hair wider we would have had problems.  It is very easy to see that you would be wise to not assume it will fit your mainboard without doing a little checking of space.  See for yourself the tight fit below.

Performance

We have recently changed our comparison cooling product to the Vantec CCK-6035.  The importance of a comparison heatsink is to give you some perspective on our results.  No two systems will perform identically, or for that matter, there will be variations within a single system to some degree depending on several factors.  Hence, our results may end up being a little better or a little worse than the results you may get in your own box.  By using a designated constant, our Vantec CCK-6035, it helps you evaluate the performance of whatever we are testing, relative to other tests.

Our idle CPU temperatures were obtained by taking a reading five minutes after the PC was powered up, following it being left off for thirty minutes.  The CPU load temperatures were obtained after running the CPU Stability Tester Program for thirty minutes to obtain our "under load" temperature.  Arctic Silver Thermal goop was used as our thermal interface material for all sinks.  The TIM went into file 13 (aka the trash.)  Our average ambient room temperature was 77 degrees Fahrenheit.  At no time did the room temperature deviate more than 0.5 degrees during testing.  All readings are in degrees Fahrenheit. 

Test Bed

• AMD Thunderbird 1.4GHz @ 1.75 volts

• ABIT KT7A Mainboard

• 256 megs Infineon PC133 SDRAM

• 7.6 gb Quantum Fireball HDD

• ASUS GeForce 3 Pure

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