SUMMARY: A nice package for VGA cooling.
- Four Ramsinks
- Thermal Grease and Tape (for Ramsinks)
- Plastic Pushpins
- Four pin to three pin power plug
These heatsinks can be used for the following videocards:
- Iceberq4 Pro
- nVidia GeForce 4 Ti 4200, 4600 & 4800 Series
- nVidia GeForce FX Series
- ATi Radeon 8500, 9000, 9500, 9700 & 9800 Deries
- nVidia GeForce 2 Series
- nVidia GeForce 3 Ti, MX Series
- nVidia GeForce 4 MX Series
For other use, the following measurements may help:
As an extra added attraction, the Iceberqs include a two blue LEDs in the fan:
The fan is fairly quiet, although high pitched – I could not get a reading with a Radio Shack sound meter 8″ from the fan’s intake.
The base is well finished and polished:
When I ran my nail over it, I could not feel or hear any ridges. Polished does not equal flat, however – I found that the Iceberq4 was not particularly flat and performance suffered as a result.
The Iceberqs were tested on the Large Die Simulator. Most GPU package sizes are in the 25-35mm range – the Large Die Simulator measures 31 mm.
|Iceberq4 Pro, 4863 rpm, 29.9 watts|
|Iceberq4, 5976 rpm, 29.8 watts|
To give some idea of what smaller die sizes can do, I ran both on the Small Die Simulator:
|Iceberq4 Pro, 4872 rpm, 30.0 watts|
|Iceberq4, 5941 rpm, 29.9 watts|
C/W = Delta / CPU Watts
Interpreting C/W: For every watt (CPUw) that the CPU
consumes, the HSF will limit the CPU’s temperature rise to (C/W x CPUw)
plus the temperature at the HSF’s fan inlet. For example, at an ambient temp of 25 C, a C/W of 0.25 with a CPU radiating 50 watts means that CPU temp will increase 50 x 0.25 = 12.5 C over ambient temp, or 37.5 C. The lower the C/W, the better.
Die Simulator results indicate that for a large package GPU, the Iceberq4 Pro will limit GPU temp over ambient by 0.6 C for each GPU watt and the Iceberq4 will limit GPU temp over ambient by 0.7 C for each GPU watt. As package size shrinks, the cooling challenge increases markedly (as we’ve seen for CPUs). For a small package size, performance worsens so that the Iceberqs will limit GPU temp over ambient by about 1 C for each GPU watt.
Vantec’s Iceberq4 VGA Cooling Kit is a nice package for GPU cooling. Simulator results indicate OK cooling performance for large GPU package sizes.