Nick: akeeh  Info
Age: 30
Location: Tampere

.:Projects by user



Title: Computer stuff
Created: 28.08.2010 13:24

Second problem with installing the Accelero GPU cooler to my 8800 GTS was that the card didn't start up without any RPM pulses from a fan connected to the fan connector on the card.

After some searching I found that the fan connector pinout is the same that is used in new PWM controlled CPU coolers so I cut the connector and wires from an old GPU fan (from my broken 8600) and soldered a bigger 4-pin connector (the pinout is the same, just matched the wire colors and that was it) to the other end to make an adapter where I could plug in a 4-pin CPU fan or just a normal 3-pin fan to get an RPM pulse to the card.

I used an Intel stock cooler to test the system and it worked well (the PWM controlling worked also) and the card powered up finally. That was just a test setup and at the moment I'm just taking the RPM signal from a case fan to get the card running and there is a separate 12cm under the card to cool it down.
Second problem with ...
I finally installed the Accelero GPU cooler to my 8800 GTS (XFX AlphaDog) and ran into a little problem with cooling all the voltage regulators as the tape in the little memory heatsinks didn't hold very well anymore as I took them off from elsewhere.

So I figured out that I could do a holder from some aluminum sheet and bolt it to the holes around the chips. I drilled some large holes to the places where the heatsinks would be so that the air could get through well. The standoff sticking out of the aluminum piece is for one lonely voltage regulator to get some heat out of it too.

The piece holds the heatsinks well in place and there isn't any worry of them dropping down on their own. The brownish tape in the photos is Kapton tape (very heat resistant tape) to prevent any accidental shorts to component legs etc. Just to be safe.
I finally installed ...
VGA to RJ45 -adapters. I had a need for a longer video cable so I could put my video projector where I wanted but didn't feel like buying an expensive long VGA-cable. I knew that it is possible to run VGA-signal across a CAT-5 cable and found ready masks for a PCB for the adapters.

I butchered the VGA- and RJ45-connectors from a couple of old ISA network cards and PCI video cards so it was quite cheap project to make. The adapters work very well and at the moment I'm using it with a 5 meter network cable and I don't see any interferences in the picture.

The PCB masks can be found here:
VGA to RJ45 -adapter...
Got new coolers for the computer yesterday and spent few hours tuning the case (replaced the front fan to a bigger one and relocated the hard disks). The hard disk frame is done from a piece of aluminum plate and the front fan is running at 7 volts.

The Accelero is passive at the moment because it keeps the 8600 quite cool. Idle temperature is staying at about 37C and after an hour of CoD4 with high settings it didn't get over 46C. CPU is idling at about 32C and stressed with superpi it doesn't seem to get over 40C. I'm quite pleased that the components are staying cool and the computer is now very silent. :)

Also check out the timelapse video that I made about the install of the Accelero for the 8600GTS. I made it just for fun and wanted to try out the intervalometer function in my camera:


My rather low budget machine:

CPU: Intel Dual Core E2140
RAM: 2 * Kingston 1GB 667MHz DDR2
HDD1: Seagate Barracuda 7200.10 320GB SATA2
HDD2: Western Digital Caviar WD3200JB 320GB IDE
GPU: Foxconn GeForce 8600 GTS 256MB
PSU: Nexus 350W

CPU cooler: Sharkoon Silent Eagle CPU cooler
GPU cooler: Arctic Cooling Accelero Rev.2

The case is just a normal ATX case I got for free. It is just a temporary case until I get the time, money and materials for a custom case that has been in my mind for a long time now.

[Edit 06-03-2008] 3DMark03 scores: 17111 marks (10k marks more than my previous setup)
[Edit 08-03-2008] 3DMark06 scores: 5300 3Dmarks | SM 2.0: 2400 | SM 3.0: 2260 | CPU: 1402
Got new coolers for ...
USB memory in a shell casing. I first tried it with the normal connector and didn't come out so nice so I decided to change the connector. I took the connector from an old printer pcb I had lying around and soldered it in place. The tape on the top middle picture is just for some insulation.

The shell casing is from a 12.7mm (.50") caliber anti-aircraft machine gun NSV-12.7 (I got a training for it when I was in the army so that is why I have it). Great fun to try to shoot down an RC plane with it :)
USB memory in a shel...