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Karri Koivusalo

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Karri Koivusalo last won the day on August 22

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About Karri Koivusalo

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  1. Karri Koivusalo

    SilverStone ML07 liquid cooling project

    Hello and thanks The plastic parts are just dressing on a metal chassis, the metal beneath is similar perforated steel sheet as above the I/O panel. I don't think there is an easy way to go around periodic checks. However as refining the loop gave a bit more room to play with, a flow meter and temp gauge could be in future improvements. Also a water wheel flow indicator could be a useful addition, there's a good length of tubing over the I/O shield with acceptable visibility. But for the near future I'll be enjoying my computer by using it. Last timestamps on my computer before 21st of Aug were 10th of July. 42 days with computer in pieces wasn't fun.
  2. Karri Koivusalo

    SilverStone ML07 liquid cooling project

    Well, no cardboard but quite a bit of gorilla tape! Sharp pin heads and raw PCB edges didn't sound too good with rubber tubes in close proximity. One thing I'm really pleased with modern cases is how the chassis steel parts are at least chamfered if not rolled at the edges. Quite the contrast with nineties' razor sharp edges!
  3. Karri Koivusalo

    SilverStone ML07 liquid cooling project

    Finally! FINALLY! One last look inside for hopefully a good while: The cover went on with the tiniest bit of fiddling, the pump is very quiet and primed to the top - it can now be run sideways without air ingestion. Idle temps are pretty pointless, but after a while, it settles to 40°C, fluctuating about ±3°C. Here's a nice cherry picker screen shot:
  4. Karri Koivusalo

    SilverStone ML07 liquid cooling project

    Okay, so I did a few last minute changes to the loop, because of course I did. The pump now feeds the GPU inlet, the GPU outlet feeds the radiator and the radiator outlet is take right across the chassis for the CPU inlet. This allows for fewer bends, less weight and slightly improved flow. And I ran out of coolant while filling the loop. The universe is against me having this computer running.
  5. Karri Koivusalo

    SilverStone ML07 liquid cooling project

    Got the diodes, part# SM6T15A. Turns out the packaging is thicker than the original, so the pump housing bulges ever so slightly. Can't be bothered with it anymore. The pump draws 0.65A @ 12 V, seems about right. No leaks or other problems after 30 hours of running, looks good. Can't access my computer until Friday.
  6. Karri Koivusalo

    SilverStone ML07 liquid cooling project

    Still waiting for the damn diodes. 18v didn't look good at all, but 15v should be here first thing next Monday. In the meanwhile, I took care of something that really bothered me; the mini SATA adapter for the slot-loading Blu-ray drive. here's the cable. The mini SATA and the data half look brilliant. Molded connectors, sleeved cable and all. But then. The power side is two loose cables with a legacy molex. A terrible, wibbly-wobbly molex that's so bad it takes a patience of a saint to get that POS pushed to the molex-sata adapter wasting precious space. One can't but wonder what kind of ill-conceived idea was behind that decision. They did a marvellous job at one side, then *completely* f'd up the other. Anyway, a bag of SATA power connectors, nylon sleeve and heat shrink tubing did a great job at fixing other people's goof-ups. Here's an after shot: Those connectors housings are supposed to be welded together between heated dies, but since I didn't have any, I just went to town with some cyanoacrylate gel. Hopefully it adheres well enough, certainly feels like it now. Here's a look inside the computer before installing the pump: It all goes together without any binds or hose manipulation after my last loop refinement. There is a feeling of enough space for everything, and it feels just *right*.
  7. Karri Koivusalo

    Corsair 750D Metal Carbon

    The CNC plasma table is basically a huge 2d plotter with a plasma torch. It simply heats compressed air to about 30000°C which cuts through pretty much anything. The problem is setting up the sheet stock, uploading the files, picking up and cleaning the parts after cutting and painting them takes a lot of time, which costs a lot in wages and could be used more efficiently. The worst case was when he needed just a few parts; had an employee done them in-house, they would've cost hundreds of euros. When ordered from a laser cutting company, they were about €3 each, painted. He actually had the most profits off it using it as indeed a plotter with a permanent marker for a client needing enormous cardboard templates.
  8. Karri Koivusalo

    Corsair 750D Metal Carbon

    Sorry for the slight off topic, but this reminded me of a very paradoxal situation; a friend of mine built a CNC plasma table when he started his machine/engineering shop business, and now he says it's far too labour intensive, ie. expensive to use professionally 😁 Anyway, have you looked at the chinese CNC routers? They are not expensive but do require a bit of tinkering though once set up properly they should be very useful for cutting aluminium and acrylic sheets.
  9. Karri Koivusalo

    SilverStone ML07 liquid cooling project

    Meh, 15v diodes were out of stock so I got 18 volts instead, they'll arrive monday. Hope they won't blow up the motherboard with some 18v emf pulse. I can't understand how the pump originally worked, the 7v5 unidirectional should've shunted power exactly the same.
  10. Karri Koivusalo

    SilverStone ML07 liquid cooling project

    As, expected, the diode didn't work. It ran fine until about 6.5v and then it began shunting power and damn near melted the plastic shell. I'll get some 15v TVS diodes and hope they work okay.
  11. Karri Koivusalo

    SilverStone ML07 liquid cooling project

    Hey, nice, the new diodes arrived! R At last! I finally get to... Hey wait a minute. Polarity mark is missing?! It seems these are bidirectional diodes, with breakdown voltage of ±7.5v. I don't like the sound of that.. It may well be the summer's over before my rig boots again. Well, since it looks like my system isn't going anywhere fast, I figured I might just as well rethink the loop a bit. The earlier loop fed from the 240 rad at the forward port, and send it from the rear to go round between the cooler and the backplate. Since that ran into some interference problems with the power cord, I'm trying a new approach; the GPU input line dips under the forward port and goes to the rear. Forward port is the outlet and the loop goes around the card to exit the GPU bay at the rear of the riser card. The earlier way kinked the hose just a bit but what's worse, it physically stressed the card.
  12. Karri Koivusalo

    SilverStone ML07 liquid cooling project

    Nah, it's just a glass vial with marker paint at one end. It's completely fine :-)
  13. Karri Koivusalo

    SilverStone ML07 liquid cooling project

    Here's the pump PCB: The failed diode is D3, at nine o'clock position. It's a huge component, really easy to work on. I'll post the part # as soon as I've received the new diodes. I resoldered all the wires, they had the worst cold joint blobs I've seen awhile. On the other hand the PCB was coated, which was a nice touch, and there is a rectifier diode for reverse polarity protection. The pump is going to be better than new with this operation :-)
  14. Karri Koivusalo

    WOPR - Casecon by RandomDesign

    Nice! WOPR had a very Art Deco like feel to it, it lends itself well for manufacturing 🙂 About the LED effects, Sparkfun has 8x8 RGB LED matrix panels, have you considered those?
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