Wesley's Tool-Box

• Video Card Mods (cont.)

The noticeable feature of this card is that it uses Tiny-BGA memory chips that are used in Ti-grade cards, but not in MX-grade cards. The small size of the chips must've helped in designing this card so small. Here comes the northbridge heatsink removed earlier. It's going to be stuck to those chips with the thermally conductive adhesives from Zalman (they came in the northbridge heatsink package) which is visible on the left corner of the picture.



But wait, there are memory chips in front, too! So I went out to buy some heatsinks meant for cooling MOSFETs, lapped it, then stuck it with the adhesive.



The video card modification is complete. The heatsinks are placed nicely, as you can see. Time to build the case now!

• First Assembly

Now the CPU and the cooler is properly in place. The CPU used is AMD Athlon XP 1700+ (1467MHz), which is really from another project called TabletXP, my attempt at creating an Athlon XP based tablet computer. It did not go as expected because the CPU was taking too much power and wasn't feasible enough to be used on batteries.



The computer makes its first test run for functionality. Due to the expected size constraint, I applied some server parts in this project. I got a slim size CD-ROM / floppy drive combo from a server shop (they had them for 1U servers). The PCI riser card and the power supply came from IKIS. The power supply is a 300W version made for 1U servers made by Matrix Power, twice as powerful as the original Portable Athlon. Operating an Athlon system on a 150W power supply was a risky business, and it became evident in the end, as the power rails eventually fell below normal operating parameters due to stress. Using a high-capacity server-designed power supply should not repeat this problem, I thought. Anyways, the test went well, so the system was ready to be built into a proper casing.

• Video Card Mods

The video card needed some modifications first, though. Operating in a tight space meant that I had to prepare it to withstand hot environments. Therefore, I replaced the original heatsink with the CoolJag JAC311C, a high performance copper heatsink made for cooling CPUs in 1U servers. It actually came from the TabletXP project, too, and it was originally cooling the Athlon XP, so I could expect a very effective cooling. Oh, and the video card is an NVIDIA GeForce4 MX440 based model from Garnet Systems. They had two version of the MX440 card, one in normal size, and the other in slim size (this one). There was no Ti-grade GeForce cards in slim size, so this was the fastest slim size card on the market I could buy.

• Death and Rebirth

The original Portable Athlon was signalling its retirement. The highly overclocked GeForce2 MX in the system finally failed, probably due to extensive operation under the cramped environment. The card seemed fine at first, but it invoked hard drive errors during booting (I thought the hard disk had gone bad at first). I think it was sending unstable signals and risking the stability of the system. Also, the case design had very limited expandability, with no PCI extension cards installable, and without a room for a floppy drive or a CD-ROM drive. I was sort of getting annoyed by that. I decided to get over this, and started building a new version. I'll show the journey around with lots pictures.



This is the EPoX EP-8K3A mainboard with KT333 chipset, supporting PC2700 (166MHz operation, 333MHz effective speed) DDR-SDRAM and 166MHz FSB. You can clearly see the markings on the surface. Like the original Portable Athlon, this mainboard is full ATX, not the smaller microATX that is commonly used in small form-factor or slim-size computers. Back in the original, though, there wasn't much benefit of using a full ATX mainboard in terms of expansion because it was blocked by the power supply sitting all over it. Not this time; those PCI slots would have real use. Here, I'm removing the default northbridge heatsink.



The default heatsink would be more useful somewhere else. I'm going to replace it with Zalman Tech's beautifully gold-coloured ZM-NB32J northbridge heatsink.



The new heatsink is now in place. Next step is to install a CPU cooler. I am to install CNPS5100-Cu, again from Zalman, which does not use clips, but four supporting bolts. Therefore, I needed to put the studs on first.

It's been quite some time since I've added an article to this site. Now that the FIFA World Cup 2002 Korea/Japan is coming to an end this week and that the semester is over, I've got some time to do some projects and write stuff again. Also, I'd hate to see the new server move going to waste. The new article was done by a popular demand - how to create an LCD monitor by yourself. It's not just the computer box that gets to be customized - now the monitor can, too.

• The Finished Product (cont.)

The video connector and the DC power input is more readily visible this way. These two are easily found side by side in normal LCD monitors as well. Let's look at the opposite side.



The OSD controls are visible here. The buttons were low-profile, so I used bolts to extend the buttons' reach. I've bended the LED light to the side so that it can be visible from the front.

So there you have it! This is how you can build an LCD monitor by yourself. With the right components, you can make your very own, one-of-a-kind monitor for use with your custom system. Hey, it looks like I've finally wrote an article without tiring myself to sleep. Anyways, good luck with monitor creation, folks!