There are 3 parts to this
review, please use the pulldown below to browse sections or simply hit "Next"
at the bottom of each section to continue
Installation
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is the ability to use a pair of pliers. There are two snaps that hold the old
and new heatsink to the card. Squeeze the snaps and the heatsink pulls off easily.
Before the G4-VGA Cooler is snapped on though, it is necessary to apply the
thermal paste supplied with the kit. This will ensure proper contact between
the GPU and the Heatsink. More is not always better in this case either. A small,
even amount of paste is enough to do a proper job.
Installing the ramsinks is a matter of applying the double-sided tape to the
heatsinks and then to the memory chips. Be very careful here, because once the
tape comes in contact with the memory it will not be going anywhere after that.
The bonding strength of this tape amazed me. You will be able to hold the card
from the ramsinks after their application without them so much as wiggling whatsoever.
At this point, the only thing to do is connect the G4-VGA fan connector to
the card and reinsert the card in the motherboard.
Testing
Before installing the Heatsinks, I took the time to measure the temperatures
of the GPU and the memory chips. I measured the temperatures at an idle system
from a fresh boot and then under a load. I used the Codecreatures Benchmark
Pro loop running at 1600x1200 to stress the video card.
I was a little surprised by the temperatures at first because I really wanted
to see something a great deal lower than my stock temps. There is not much to
cause heat though in an idle state, so this can be expected.
Once I put the system under a load I saw the temperatures reflect what I saw
at idle temperatures. The difference between the Stock heatsink and the G4-VGA
was less than expected.
Overclocking
Previous attempts in overclocking my video card were met with what I considered
to be great success. My Ti4400 using the stock heatsink and no memory heatsinks
would reach speeds higher than the Ti4600. Stock settings on my Ti4400 are 275MHz
Core (GPU) / 550MHz (Memory). While overclocking, I could achieve 310MHz Core
/ 670MHz Memory with no problem, but anything beyond that produced erratic behavior.
With the G4-VGA Copper Cooler installed I was hoping to surpass these numbers.
Overclocking to 310/670 was no problem, but anything beyond that produced the
same results as with the stock heatsink arrangement. Certainly this was a disappointment.
The limitation at this point would appear to be more than just a heat limitation.
This certainly was a shocker to see the stock memory temperatures lower than
what was produced by the Memory Heatsinks. We see the G4-VGA's GPU temperatures
are still staying below stock temperatures.
At least we see the new ramsinks outperforming the stock settings under a
load. With the GPU temperatures we still see very little change over the stock
settings.
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