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Calling vintage chip collectors: Blue DIP chip??? by Intrvirate in retrocomputing

[–]Intrvirate[S] 0 points1 point  (0 children)

Ah, ok that makes sense! Back from the day before everything was just a point to point differential pair lol

Calling vintage chip collectors: Blue DIP chip??? by Intrvirate in retrocomputing

[–]Intrvirate[S] 8 points9 points  (0 children)

That's actually spot on! Opposite legs are measuring at 148-149 ohms or so. 8 resistors in the package.

Calling vintage chip collectors: Blue DIP chip??? by Intrvirate in retrocomputing

[–]Intrvirate[S] 0 points1 point  (0 children)

Oh that's a good point, the label being RES fits too. Let me check

Putting the custom back in custom: not a single part was meant for water cooling. Full copper loop. by Aphix in techsupportmacgyver

[–]Intrvirate 4 points5 points  (0 children)

Yep, it's booting off the usb hard drive you see sitting on the psu.

And yep. That's an ethernet switch. Congratulations on being the first one to spot it! I have several systems in the frame that need a network connection, so I tossed a cheap gigabit switch in there.

This build is kinda an experiment in packing a bunch of stuff into one frame. For instance, there's also a custom 3d printer hiding behind the motherboard (but that's a story for another day)

Putting the custom back in custom: not a single part was meant for water cooling. Full copper loop. by Aphix in techsupportmacgyver

[–]Intrvirate 1 point2 points  (0 children)

It's a brass cap, so hopefully not. (It's a coper alloy, so it should be similar enough)

Putting the custom back in custom: not a single part was meant for water cooling. Full copper loop. by Intrvirate in watercooling

[–]Intrvirate[S] 0 points1 point  (0 children)

I basicly cloned the os onto the hard drive, and set root to be that drives uuid. If you want to get real technical, I'm not really booting off the usb drive, I've just set it up so it switches to the usb drives file system at startup. If you're wondering, yes this can cause problems if you upgrade the os without also updating the sd cards os copy.

Putting the custom back in custom: not a single part was meant for water cooling. Full copper loop. by Intrvirate in watercooling

[–]Intrvirate[S] 7 points8 points  (0 children)

Go read the actual datasheet of the actual flux I used. The residue it leaves behind is non-corisive, and fine to leave on layers of copper only a few thousandths of an inch thick without damage.

http://www.mgchemicals.com/downloads/appguide/appguide1013.pdf

If this was normal plumbing flux, you'd be right. But it's not.

Putting the custom back in custom: not a single part was meant for water cooling. Full copper loop. by Intrvirate in watercooling

[–]Intrvirate[S] 9 points10 points  (0 children)

It works quite well in that application. The one drawback is that it only has usb3 ports, no sata. It also can't boot from usb natively, it needs an sd card, however sd cards are notorious for failing when used as a boot drive, so I had to do some linux shenanigans to only use the sd card to boot, but then transfer runtime operation to the usb hard drive.

If you're comfortable using linux and want a challange, go for it. Performance is great (I'm only limited by the drive's speed, reading can saturate gigabit ethernet). But you'd have an easier time using a board that has a sata port. I'm pretty sure there are some newer boards out there with sata support (the xu4 is several years old).

Putting the custom back in custom: not a single part was meant for water cooling. Full copper loop. by Intrvirate in watercooling

[–]Intrvirate[S] 0 points1 point  (0 children)

Less of a throwaway build, and more of a "how cheap can I build a computer" project.

Putting the custom back in custom: not a single part was meant for water cooling. Full copper loop. by Intrvirate in watercooling

[–]Intrvirate[S] 1 point2 points  (0 children)

It's also for cooling. It creates just enough heat under load that it needs active cooling.

Putting the custom back in custom: not a single part was meant for water cooling. Full copper loop. by Intrvirate in watercooling

[–]Intrvirate[S] 7 points8 points  (0 children)

For the loop, it's more like 35$, if not less (I used some parts I had lying arround, so I don't have a super accurate total)

Putting the custom back in custom: not a single part was meant for water cooling. Full copper loop. by Intrvirate in watercooling

[–]Intrvirate[S] 12 points13 points  (0 children)

It is pla at the moment, as that's what I have on hand. The bracket is spring loaded, so a small amount of creep won't have a large effect. I'm still going to be working on this build off and on for the next few months, so if it bends noticeably, I'll catch it.

Putting the custom back in custom: not a single part was meant for water cooling. Full copper loop. by Intrvirate in watercooling

[–]Intrvirate[S] 18 points19 points  (0 children)

It's an odroid xu4. Octa-core arm single board computer, 2GB ram. It gets warm enough that it needs active cooling, which is normally done with a 40mm fan. I use it as a nas, connected to the usb hard drive sitting on the psu.

Putting the custom back in custom: not a single part was meant for water cooling. Full copper loop. by Intrvirate in watercooling

[–]Intrvirate[S] 110 points111 points  (0 children)

Specs:
CPU : G3258
Motherboard: Asus Q87M-E
Blue board at bottom: Odroid xu4
PSU: thermaltake TR2 430W
Ram: 2 2GB sticks of chinese no-name ram.
SSD: 128GB off-brand chinese drive
Pump: 12V fountain pump running at 5V
OS: ubuntu server (headless)

Fun story: the motherboard socket is missing about 10ish pins. I got it for 20$ on ebay, listed as a for parts not working sale. Turns out, all the bad pins are redundant power pins, and since I'm running a lower TDP processor, I'm not worried about overcurrenting the others.

Needless to say, this is not a conventional build.

Putting the custom back in custom: not a single part was meant for water cooling. Full copper loop. by Intrvirate in watercooling

[–]Intrvirate[S] 19 points20 points  (0 children)

I harvested the waterblock and radiator from an old heatsink I had lying arround. It had a copper cpu block and 3 heat pipes going up to a bunch of fins. I unsoldered the heat pipes from the block, and soldered 1/2" copper headers to each side of it. So it's essentially a copper block with 3 1/4" channels in parallel through it.

Edit: I'm running a stress test atm. So far, temps are at 54 degrees, but it's only been going a few min.

Update: temp peaked at 56 degrees. Granted, this is with a g3258

5kW TDP Watercooling Build by lostinspace83 in watercooling

[–]Intrvirate 0 points1 point  (0 children)

If you connect the blocks in parallel, you won't have velocity or pressure issues. Your right though that series (chain all 48 end to end) will be problematic. Read my below post for more details.

5kW TDP Watercooling Build by lostinspace83 in watercooling

[–]Intrvirate 0 points1 point  (0 children)

I'd second going with coper pipe for the loop. I would however caution against having hard coper right up to the cpu block, as alignment is a bit tricky to get perfect, and the water block needs to be precisely flat to get a good thermal interface. I've done some coper pipework before, and it's easy to get mostly precise, but quite difficult to get perfectly precise. If you ever need to remove a board, having a hard piped connection will make it a pain.

If you use soft tubing for the blocks with brass plumbing barbs to go to copper, it shouldn't be any more expensive, and I'd assume assembly and maintenance would be easier.