W1zzard
04-21-2005, 03:55 PM
[Page=Introduction, Packaging & Installation]
Introduction
From the manufacturer Jetart (http://www.jetart.com.tw):
Delicate Welding Technique Applied
All-In-One VGA Cooling Kit
Super Bright LED Fan
Silent & High Performance Ball Bearing Fan
Compatible to all nVIDIA & ATi VGA cards
Extra 8 pcs Memory Heatsinks Included
<table border="1" class="resulttable" cellspacing="0" cellpadding="3">
<tr>
<th scope="row">Cooler Dimensions</th>
<td scope="row">110.0 x 88.7 x 31.6mm</td>
</tr>
<tr>
<th scope="row">Fan Dimensions</th>
<td scope="row">60 x 60 x 12mm</td>
</tr>
<tr>
<th scope="row">Heatsink Material</th>
<td scope="row">Copper</td>
</tr>
<tr>
<th scope="row">Fan</th>
<td scope="row">12V, 0.2A, 2.4W</td>
</tr>
<tr>
<th valign="top" scope="row">Fan Speed</th>
<td valign="top" scope="row">3400 RPM</td>
</tr>
<tr>
<th valign="top" scope="row">Weight</th>
<td valign="top" scope="row">320g</td>
</tr>
<tr>
<th valign="top" scope="row">Compatible with</th>
<td valign="top" scope="row"><b>NVIDIA:</b>GeForce3 Ti 200, GeForce3 Ti 500, GeForce4 MX 420, GeForce4 MX 440, GeForce4 MX 440 SE, GeForce4 MX 440 8X, GeForce4 MX 460, GeForce4 Ti 4200, GeForce4 Ti 4200 8X, GeForce4 Ti 4400, GeForce4 Ti 4600, GeForce4 Ti 4800, GeForce FX 5200, GeForce FX 5500, GeForce FX 5600, GeForce FX 5600 ULTRA, GeForce FX 5700 LE, GeForce FX 5700 ULTRA, GeForce FX 5900, GeForce FX 5900 XT, GeForce FX 5950 ULTRA, GeForce 6600, GeForce 6800, GeForce 6800 ULTRA<br />
<b>ATI:</b>RADEON 9000, RADEON 9000 PRO, RADEON 9200, RADEON 9200 PRO, RADEON 9500, RADEON 9550, RADEON 9600, RADEON 9600 SE, RADEON 9600 PRO, RADEON 9600 XT, RADEON 9700, RADEON 9700 PRO, RADEON 9800 PRO, RADEON 9800 XT, X300, X600, X700, X800, X850</td>
</tr>
</table>
Packaging
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/package1_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/package1.jpg) http://www.techpowerup.com/reviews/Jetart/JACSH1/images/package2_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/package2.jpg)
Box contents:
VGA cooler with fan and screws
Backside mounting clip
Thermal Paste
Instruction manual
Eight Ramsinks
Power Cable
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/flatness1_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/flatness1.jpg) http://www.techpowerup.com/reviews/Jetart/JACSH1/images/flatness2_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/flatness2.jpg)
Some minor ridges from production are visible on the base, they do not effect heat transfer as performance testing shows. On the "knife test" there is very little light shining through. Except for the hole in the center.
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/cooler1_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/cooler1.jpg)
The whole cooler is made from polished copper - blingbling. Very beautiful.
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/cooler2_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/cooler2.jpg)
For protection, the heatsink base has a sticker on it, a good idea. However, the glue Jetart uses does not stay on the sticker. A little bit remains on the cooler base as following pictures show.
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/cooler4_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/cooler4.jpg)
I also wonder what the little hole in the center of the heatsink base is used for.
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/fan1_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/fan1.jpg)
A blue LED is lighting up the fan when it is running.
Installation
Installation is extremely easy and can be done in a few minutes.
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/cooler3_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/cooler3.jpg) http://www.techpowerup.com/reviews/Jetart/JACSH1/images/installation1_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/installation1.jpg) http://www.techpowerup.com/reviews/Jetart/JACSH1/images/installation2_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/installation2.jpg) http://www.techpowerup.com/reviews/Jetart/JACSH1/images/installation3_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/installation3.jpg) http://www.techpowerup.com/reviews/Jetart/JACSH1/images/installation4_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/installation4.jpg)
A minor issue I spotted, is that the diameter of the through-PCB mounting screws is rather small, so the screw can move in the hole. This review shows that this has absolutely no effect on performance or contact quality, I just wanted to mention it because the first time you think "did I install something wrong?" - This is not the case. Everything is perfectly fine.
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/screw_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/screw.jpg)
The included Ramsinks look like copper but are made from copper-painted aluminum as you can see from the scratched away paint near the corner.
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/ramsink_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/ramsink.jpg)
[PAGE=Performance, Value & Conclusion]
Performance
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/contact1_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/contact1.jpg) http://www.techpowerup.com/reviews/Jetart/JACSH1/images/contact2_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/contact2.jpg)
After the initial installation the heatsink was immediately removed and the contact area was inspected. Heatsink contact is just "wow". On the core there is almost no thermal paste left, on the cooler base you can make out the ATI logo.
After cleaning up the cooler base you can see that the mounting pressure is pretty high. There is a relief of the ATI logo imprinted into the copper:
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/contact3_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/contact3.jpg)
[hr]
For the overclocking tests I used my ATITool overclocking utility version 0.0.24 Beta 9. ATITool has the unique ability to detect artifacts, or flaws, in a rendered image. As defined by ATITool, the maximum stable overclock on a card is the speed at which it is able to consistently (15 minutes in this test) produce no errors, or artifacts. ATITool detects ANY artifacts, even ones which will not be visible in game. Using the human eye to detect artifacts introduces subjectivity into the test, so despite the fact that an ATITool tested overclock will be characteristically lower than a human one, I will use this.
Temperature was measured with one case side open by b reading the on-die X800 XT thermal diode. Idle temperature was measured after letting Windows sit one hour at the desktop. Load temperature was measured after running 3DMark2001 looped for one hour. Both at the card's default clock of 500 / 500 Mhz.
Arctic Silver Lumière was used as thermal interface material for the GPU core in all installations. Lumière is a specially engineered testing compound - it needs no settle in time to reach its maximum performance, but it's not designed for permanent use.
A 7V setting is possible by connecting the fan connector's black wire to the PSU's 5V output, and the fan connector's red wire to the PSU's 12V output (12V - 5V = 7 V).
The dynamic fan setting of the card changes fan speeds from 43% (idle) up to 80% (load). The stock cooler was also tested with forced 100% fan speed for better comparison.
<table class="resulttable" border="1" cellspacing="0" cellpadding="3">
<tr>
<th valign="top" scope="row">Radeon X800 XT</th>
<td>Maximum Core Clock</td>
<td>Sound level</td>
<td>Temperature Load</td>
<td>Temperature Idle</td>
</tr>
<tr>
<th valign="top" scope="row">Stock cooler - dynamic fan</th>
<td>534 Mhz</td>
<td>Quiet</td>
<td>80°C</td>
<td>42°C</td>
</tr>
<tr>
<th valign="top" scope="row">Stock cooler - fan 100%</th>
<td>545 Mhz</td>
<td>Noisy</td>
<td>67°C</td>
<td>39°C</td>
</tr>
<tr>
<th valign="top" scope="row">JACSH1 12V</th>
<td>542 Mhz</td>
<td>Acceptable</td>
<td>63°C</td>
<td>38°C</td>
</tr>
<tr>
<th valign="top" scope="row">JACSH1 7V</th>
<td>540 Mhz </td>
<td>Quiet</td>
<td>68°C</td>
<td>40°C</td>
</tr>
<tr>
<th valign="top" scope="row">JACSH1 5V</th>
<td>536 Mhz </td>
<td>Very Quiet</td>
<td>71°C</td>
<td>40°C</td>
</tr>
<tr>
<th valign="top" scope="row">Watercooling (Water ~30°C)</th>
<td>564 Mhz </td>
<td>Inaudible</td>
<td>35°C</td>
<td>31°C</td>
</tr>
</table>
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/graph1.gif http://www.techpowerup.com/reviews/Jetart/JACSH1/images/graph2.gif http://www.techpowerup.com/reviews/Jetart/JACSH1/images/graph3.gif
When looking at the data, the first thing you notice, is that even though load temperatures are considerably lower compared to the stock cooler, the maximum core clocks are actually lower (look at stock 100% vs. JACSH1 12V).
To make sure this is not an installation or measurement error, I tested stock cooler and JACSH1, three times each. Install JACSH1, install stock cooler, install JACSH1 and so on. The results are what you see above.
At the moment I do not have a perfect explanation for you, why this is happening, my guess is that the maximum core clock also depends on how fast the heat is removed from the core, not only the temperature.
While temperatures are pretty good, the overclocks are not existant, compared to the stock cooler. What the JACSH1 gives you, is a decreased sound level and lower temperatures at same clock speeds like the stock cooler.
A big disadvantage is, that the fan is not connected to the video card's fan power connector. This means that on cards which support dynamic fan controls, like all X800s, you will not be able to use that feature and your fan will constantly run at the same speed. Also the extra cable with the bulky connector is a bit disturbing for people who like to show off their case insides.
Value and Conclusion
<table width="100%" cellpadding="5" cellspacing="0" id="result">
<tr><th>http://www.techpowerup.com/images/dollar.gif</th>
<td>
With a street price of about $20, the JACSH is one of the cheaper VGA coolers on the market. The price is ok for the performance it delivers.
</td>
</tr><tr>
<th>http://www.techpowerup.com/images/thumbup.gif</th>
<td>
Full Copper design
Good compatibility
Easy to install
Great surface finish
Blue LED in fan
</td>
</tr>
<tr>
<th>http://www.techpowerup.com/images/thumbdown.gif</th>
<td>
Performance could be better
Fan does not connect to video card
Ramsinks from aluminum
Minor issues (sticker on cooler base, screw diameter)
</td></tr>
<tr><th>7.5</th>
<td>If you are looking for a replacement to your video card's stock cooler and do not plan on overclocking, the JACSH1 is a viable option. However, if you want to overclock your video card to higher levels than what the stock cooler allows, you should look elsewhere.</td></tr>
<tr><th></th><td></td></tr>
</table>
Introduction
From the manufacturer Jetart (http://www.jetart.com.tw):
Delicate Welding Technique Applied
All-In-One VGA Cooling Kit
Super Bright LED Fan
Silent & High Performance Ball Bearing Fan
Compatible to all nVIDIA & ATi VGA cards
Extra 8 pcs Memory Heatsinks Included
<table border="1" class="resulttable" cellspacing="0" cellpadding="3">
<tr>
<th scope="row">Cooler Dimensions</th>
<td scope="row">110.0 x 88.7 x 31.6mm</td>
</tr>
<tr>
<th scope="row">Fan Dimensions</th>
<td scope="row">60 x 60 x 12mm</td>
</tr>
<tr>
<th scope="row">Heatsink Material</th>
<td scope="row">Copper</td>
</tr>
<tr>
<th scope="row">Fan</th>
<td scope="row">12V, 0.2A, 2.4W</td>
</tr>
<tr>
<th valign="top" scope="row">Fan Speed</th>
<td valign="top" scope="row">3400 RPM</td>
</tr>
<tr>
<th valign="top" scope="row">Weight</th>
<td valign="top" scope="row">320g</td>
</tr>
<tr>
<th valign="top" scope="row">Compatible with</th>
<td valign="top" scope="row"><b>NVIDIA:</b>GeForce3 Ti 200, GeForce3 Ti 500, GeForce4 MX 420, GeForce4 MX 440, GeForce4 MX 440 SE, GeForce4 MX 440 8X, GeForce4 MX 460, GeForce4 Ti 4200, GeForce4 Ti 4200 8X, GeForce4 Ti 4400, GeForce4 Ti 4600, GeForce4 Ti 4800, GeForce FX 5200, GeForce FX 5500, GeForce FX 5600, GeForce FX 5600 ULTRA, GeForce FX 5700 LE, GeForce FX 5700 ULTRA, GeForce FX 5900, GeForce FX 5900 XT, GeForce FX 5950 ULTRA, GeForce 6600, GeForce 6800, GeForce 6800 ULTRA<br />
<b>ATI:</b>RADEON 9000, RADEON 9000 PRO, RADEON 9200, RADEON 9200 PRO, RADEON 9500, RADEON 9550, RADEON 9600, RADEON 9600 SE, RADEON 9600 PRO, RADEON 9600 XT, RADEON 9700, RADEON 9700 PRO, RADEON 9800 PRO, RADEON 9800 XT, X300, X600, X700, X800, X850</td>
</tr>
</table>
Packaging
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/package1_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/package1.jpg) http://www.techpowerup.com/reviews/Jetart/JACSH1/images/package2_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/package2.jpg)
Box contents:
VGA cooler with fan and screws
Backside mounting clip
Thermal Paste
Instruction manual
Eight Ramsinks
Power Cable
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/flatness1_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/flatness1.jpg) http://www.techpowerup.com/reviews/Jetart/JACSH1/images/flatness2_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/flatness2.jpg)
Some minor ridges from production are visible on the base, they do not effect heat transfer as performance testing shows. On the "knife test" there is very little light shining through. Except for the hole in the center.
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/cooler1_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/cooler1.jpg)
The whole cooler is made from polished copper - blingbling. Very beautiful.
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/cooler2_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/cooler2.jpg)
For protection, the heatsink base has a sticker on it, a good idea. However, the glue Jetart uses does not stay on the sticker. A little bit remains on the cooler base as following pictures show.
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/cooler4_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/cooler4.jpg)
I also wonder what the little hole in the center of the heatsink base is used for.
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/fan1_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/fan1.jpg)
A blue LED is lighting up the fan when it is running.
Installation
Installation is extremely easy and can be done in a few minutes.
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/cooler3_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/cooler3.jpg) http://www.techpowerup.com/reviews/Jetart/JACSH1/images/installation1_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/installation1.jpg) http://www.techpowerup.com/reviews/Jetart/JACSH1/images/installation2_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/installation2.jpg) http://www.techpowerup.com/reviews/Jetart/JACSH1/images/installation3_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/installation3.jpg) http://www.techpowerup.com/reviews/Jetart/JACSH1/images/installation4_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/installation4.jpg)
A minor issue I spotted, is that the diameter of the through-PCB mounting screws is rather small, so the screw can move in the hole. This review shows that this has absolutely no effect on performance or contact quality, I just wanted to mention it because the first time you think "did I install something wrong?" - This is not the case. Everything is perfectly fine.
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/screw_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/screw.jpg)
The included Ramsinks look like copper but are made from copper-painted aluminum as you can see from the scratched away paint near the corner.
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/ramsink_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/ramsink.jpg)
[PAGE=Performance, Value & Conclusion]
Performance
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/contact1_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/contact1.jpg) http://www.techpowerup.com/reviews/Jetart/JACSH1/images/contact2_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/contact2.jpg)
After the initial installation the heatsink was immediately removed and the contact area was inspected. Heatsink contact is just "wow". On the core there is almost no thermal paste left, on the cooler base you can make out the ATI logo.
After cleaning up the cooler base you can see that the mounting pressure is pretty high. There is a relief of the ATI logo imprinted into the copper:
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/contact3_small.jpg (http://www.techpowerup.com/reviews/Jetart/JACSH1/images/contact3.jpg)
[hr]
For the overclocking tests I used my ATITool overclocking utility version 0.0.24 Beta 9. ATITool has the unique ability to detect artifacts, or flaws, in a rendered image. As defined by ATITool, the maximum stable overclock on a card is the speed at which it is able to consistently (15 minutes in this test) produce no errors, or artifacts. ATITool detects ANY artifacts, even ones which will not be visible in game. Using the human eye to detect artifacts introduces subjectivity into the test, so despite the fact that an ATITool tested overclock will be characteristically lower than a human one, I will use this.
Temperature was measured with one case side open by b reading the on-die X800 XT thermal diode. Idle temperature was measured after letting Windows sit one hour at the desktop. Load temperature was measured after running 3DMark2001 looped for one hour. Both at the card's default clock of 500 / 500 Mhz.
Arctic Silver Lumière was used as thermal interface material for the GPU core in all installations. Lumière is a specially engineered testing compound - it needs no settle in time to reach its maximum performance, but it's not designed for permanent use.
A 7V setting is possible by connecting the fan connector's black wire to the PSU's 5V output, and the fan connector's red wire to the PSU's 12V output (12V - 5V = 7 V).
The dynamic fan setting of the card changes fan speeds from 43% (idle) up to 80% (load). The stock cooler was also tested with forced 100% fan speed for better comparison.
<table class="resulttable" border="1" cellspacing="0" cellpadding="3">
<tr>
<th valign="top" scope="row">Radeon X800 XT</th>
<td>Maximum Core Clock</td>
<td>Sound level</td>
<td>Temperature Load</td>
<td>Temperature Idle</td>
</tr>
<tr>
<th valign="top" scope="row">Stock cooler - dynamic fan</th>
<td>534 Mhz</td>
<td>Quiet</td>
<td>80°C</td>
<td>42°C</td>
</tr>
<tr>
<th valign="top" scope="row">Stock cooler - fan 100%</th>
<td>545 Mhz</td>
<td>Noisy</td>
<td>67°C</td>
<td>39°C</td>
</tr>
<tr>
<th valign="top" scope="row">JACSH1 12V</th>
<td>542 Mhz</td>
<td>Acceptable</td>
<td>63°C</td>
<td>38°C</td>
</tr>
<tr>
<th valign="top" scope="row">JACSH1 7V</th>
<td>540 Mhz </td>
<td>Quiet</td>
<td>68°C</td>
<td>40°C</td>
</tr>
<tr>
<th valign="top" scope="row">JACSH1 5V</th>
<td>536 Mhz </td>
<td>Very Quiet</td>
<td>71°C</td>
<td>40°C</td>
</tr>
<tr>
<th valign="top" scope="row">Watercooling (Water ~30°C)</th>
<td>564 Mhz </td>
<td>Inaudible</td>
<td>35°C</td>
<td>31°C</td>
</tr>
</table>
http://www.techpowerup.com/reviews/Jetart/JACSH1/images/graph1.gif http://www.techpowerup.com/reviews/Jetart/JACSH1/images/graph2.gif http://www.techpowerup.com/reviews/Jetart/JACSH1/images/graph3.gif
When looking at the data, the first thing you notice, is that even though load temperatures are considerably lower compared to the stock cooler, the maximum core clocks are actually lower (look at stock 100% vs. JACSH1 12V).
To make sure this is not an installation or measurement error, I tested stock cooler and JACSH1, three times each. Install JACSH1, install stock cooler, install JACSH1 and so on. The results are what you see above.
At the moment I do not have a perfect explanation for you, why this is happening, my guess is that the maximum core clock also depends on how fast the heat is removed from the core, not only the temperature.
While temperatures are pretty good, the overclocks are not existant, compared to the stock cooler. What the JACSH1 gives you, is a decreased sound level and lower temperatures at same clock speeds like the stock cooler.
A big disadvantage is, that the fan is not connected to the video card's fan power connector. This means that on cards which support dynamic fan controls, like all X800s, you will not be able to use that feature and your fan will constantly run at the same speed. Also the extra cable with the bulky connector is a bit disturbing for people who like to show off their case insides.
Value and Conclusion
<table width="100%" cellpadding="5" cellspacing="0" id="result">
<tr><th>http://www.techpowerup.com/images/dollar.gif</th>
<td>
With a street price of about $20, the JACSH is one of the cheaper VGA coolers on the market. The price is ok for the performance it delivers.
</td>
</tr><tr>
<th>http://www.techpowerup.com/images/thumbup.gif</th>
<td>
Full Copper design
Good compatibility
Easy to install
Great surface finish
Blue LED in fan
</td>
</tr>
<tr>
<th>http://www.techpowerup.com/images/thumbdown.gif</th>
<td>
Performance could be better
Fan does not connect to video card
Ramsinks from aluminum
Minor issues (sticker on cooler base, screw diameter)
</td></tr>
<tr><th>7.5</th>
<td>If you are looking for a replacement to your video card's stock cooler and do not plan on overclocking, the JACSH1 is a viable option. However, if you want to overclock your video card to higher levels than what the stock cooler allows, you should look elsewhere.</td></tr>
<tr><th></th><td></td></tr>
</table>