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June 19, 2013, 03:29:02 AM
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Author Topic: Internal ST20G5 watercooling revamped.  (Read 1532 times)
Maturin
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« on: April 09, 2007, 05:55:29 PM »

My current setup is noisy, messy and not cool enough... its time for a change. I'll take some before, during and after pics to show a couple G5 w/c setups that I've stumbled upon.


System: Shuttle ST20G5
CPU: Opteron 165
Components to cool: CPU and Northbridge

Parts to use:

92mm radiator
WoZZeR has been kind enough to send me one of those 92mm rads. Not installed yet, but looks like it will fit perfectly.

Typhoon 3.5” bay Reservoir
Thanks to Kenaneu for the link to that one.

Swiftech Apogee Waterblock
Currently 3/8”, going to get some barbs to change to 1/4” Or get a low profile Koolance block with angled connectors.

Swiftech MCP350
Need to find good way to go from 3/8 to 1/4 in a tight space.

Koolance Northbridge/GPU water block
The square one with the angled connectors.

2x SilenX iextrema-pro 92mm fans
For push-pull on the radiator.

1/4” Tubes and Fittings
Much more flexible than the 3/8” that I have been using mostly

The Plan:
Pump custom mounted already, sticking out the bottom of the bottom bay of the drive cage a little. 92mm rad rotated sideways, blocking the PCI slot. Hopefully I’ll be able to fit a really short profile wireless card underneath it, as thats whats in my slot currently. The Res I plan on fitting sideways atop the radiator between my short dvdrw and the back of the case. I figure since a HDD can fit up there, that res can also. With the flexibility of the 1/4” tubing, I expect to be able to avoid any trouble with the waterblocks and their nozzles fitting properly.

Pictures and more to come in the next week or so.
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kenaneu
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« Reply #1 on: April 09, 2007, 08:36:47 PM »

Sounds like a fun re-vamp!  Can't wait to check it out!
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Maturin
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« Reply #2 on: April 10, 2007, 04:22:18 PM »

So I decided to go with the low profile Koolance 1/4" block with the angled connectors. I figure it will save a lot of headache. Frozencpu found out they didnt have any in stock though, so its on back order. :\
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kenaneu
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« Reply #3 on: April 10, 2007, 07:54:03 PM »

Which block exactly are you looking for?
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Maturin
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« Reply #4 on: April 10, 2007, 08:30:06 PM »

The one you have in your G4 is the 300... the one I ordered is the 305. It has a darker orange coloring and probably doesnt provide any different cooling, but it comes with all sorts of mountings that I may or may not need.
http://www.frozencpu.com/products/2035/ex-blc-246/Koolance_CPU-305-H06_14_6mm_Universal_CPU_Cooler.html?tl=g30c85s139
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Maturin
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« Reply #5 on: April 13, 2007, 07:41:40 AM »

So I've got most of my parts in, and decided to tear it down to doublecheck the placement of it all.
The radiator fitted sideways leaves room to lay the typhoon reservoir on top, and with the addiition of some angled barbs it would be perfect....EXCEPT... I forgot to check the dimensions on the other side of the radiator, and it blocks the PSU from fitting in place by a few milimeters. CURSES! The PSU cant be cut down in any way due to its internals, and I dont want to risk cutting into that side of the radiator... I MIGHT have enough clearance if I modded the back panel just a bit and moved the PSU into contact with the side of the case cover. I'll measure it tomorrow. If all else fails, I suppose I could stand reconfiguring it...
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mita320
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« Reply #6 on: April 13, 2007, 05:01:59 PM »

Thanks for the update and looking forward for any pics.
I´m interested in a similar setup for my SN95G5V3 as my new Toledo x2 3800 overclocks really well but she´s prettty darn hot.
At 1.3v and 2.4Ghz I´m in the low´s 60´s at full load.I think with a nice water setup I colud push her to 2.8 or 2.9 and keep temps in range.

regards
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Maturin
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« Reply #7 on: April 19, 2007, 05:46:28 AM »

Thanks for the interest Smiley
Finally got some work done on it tonight. I've decided not to go through with modifying the rear panel to accomodate the rad and psu space.
I have rotated the radiator with the barb-side to the top.
The Typhoon 3.5" res is going.... in the 3.5" bay. I think opening up the front floppy door to see the coolant rushing through will still be pretty cool, even if the placement isnt quite where I wanted.
I got a few small 90 degree angle braces and mounted the MCP350 pump underneath the drive cage with a milimeter to spare. I will need to either find some different screws or grind down the heads of the screws a little bit, because they are offsetting the drive cage just a little bit too much.

Pics coming next update.
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blaznc
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« Reply #8 on: June 12, 2007, 06:24:21 AM »

Hey maturin was wondering how well the ST20G5 overclocks? trying to decide between the 20g% and the 25P, does the 240w psu limit overclocking of cpu/video? Thanks!
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kenaneu
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« Reply #9 on: June 12, 2007, 09:43:13 AM »

How about some pics too!  

Sounds like your setup ended up being very similar to my SN85G4, which worked out nicely.  I actually just added the PF16 mesh cover to my G4 and the temps stay in the high 20's under load now.  Gotta love laptop CPUs!  Smiley
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Maturin
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« Reply #10 on: June 12, 2007, 03:06:32 PM »

Quote from: "blaznc" date="1181643861"
Hey maturin was wondering how well the ST20G5 overclocks? trying to decide between the 20g% and the 25P, does the 240w psu limit overclocking of cpu/video? Thanks!

From what I know about overclocking (which is not much), the st20g5 is not a good overclocker because you cant change the HT speed. So the FSB will only go up a little ways. The 240w powers everything in my sig fine though.

Quote from: "kenaneu"
How about some pics too!

Sounds like your setup ended up being very similar to my SN85G4, which worked out nicely.  I actually just added the PF16 mesh cover to my G4 and the temps stay in the high 20’s under load now.  Gotta love laptop CPUs!  smile

Pics are supposed to be on my stepdad's computer, but I havent had access to that in months.
Yeah, this setup is pretty similar to your sn85g4, but with the typhoon res in the drive cage.
I have a hot CPU, and CnQ doesnt work right with it in this Shuttle, but I think temps are pretty decent. Mid-High 30s on idle, 40-42 when running one folding client and 48-49 when running two folding clients for 100% cpu usage for a day. At first glance it seems to be around the same as with my old Swiftech QP 80mm rad, but then I remember its summer here and ambient temps are up like 10 degrees at least since I last used the 80mm:p

Some cons so far:
The silenX fans I bought have both failed. Seems like they got warped a millimeter or two, and since the blades spin so close to the body of the fan they were scraping and making terrible noise. I've switched to two silenX PWM fans from shuttles, and on medium speed the noise is quite tolerable. Smiley


Theres a pesky bubble I cant get out due to the design of the Typhoon reservoir. And with the res laying flat in the drive cage, there is no upper part of the res for the bubble to float up to, so the bubble keeps getting repeatedly split and reformed by the flow of water through the res, making a fishtank noise.
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kenaneu
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« Reply #11 on: June 12, 2007, 07:51:25 PM »

Hey those temps aren't too bad!  Especially for a hot chip and no CnQ!

Yeah, I am sure your 92mm rad is helping keep those temps a little lower than the 80mm swiftech.  

As for the reservoir, it's not that it's flat out so much as that it's got no deflector plate(s) inside to break the turbulence of the inlet before allowing liquid to pull back out into the loop.  If you feel like getting rid of the noise, you might try looking for a res with plates in it.  

Bummer about the fans too.  Sheesh!  At least it seems you've got a nice, stable, and decently cool (for summer especially) rig!
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