Archimedes block install, Cooling upgrade for "Behemoth" - Overclock.net - An Overclocking Community

Forum Jump: 

Archimedes block install, Cooling upgrade for "Behemoth"

Reply
 
Thread Tools
post #1 of 125 (permalink) Old 06-02-2016, 06:47 PM - Thread Starter
TEC Veteran
 
Puck's Avatar
 
Join Date: Sep 2007
Posts: 1,969
Rep: 110 (Unique: 90)
Just got my Archimedes TEC block in today and it is a thing of beauty. I will be running it with the 62mm Thermonamic TEHC1-19940, which is over-zealously and theoretically rated at something crazy like 630w Qmax @ 24v but is closer to [email protected] in the real world...which still makes it the most powerful 62mm TEC available and a whole 72w @ 12v more powerful then the former top dog CTE 400w that I am currently running.

There are already plenty of good pictures of the block itself, but the first thing I would like to mention is how great of a job the machining was on this piece - I lap all my parts (by habit, probably not much difference with a TEC) and this was by far the flattest and easiest to lap block/heatsink/cold plate I've had the pleasure of doing. It didn't even need a real multi-stage lap...I literally spent under 5 minutes and just hit it by hand with some fine grain 1500 finishing paper before polishing it with a paper towel and a drop of 3M Perfect-it stage 1 (best polish ever BTW if you have a dark vehicle, commercial grade stuff that you can't find in stores). To compare, I usually spend close to 30 minutes total with a sheet of glass and wet paper stuck to it going from 800, 1000, then 1500 before killing myself with rubbing compound and then polish ending with a sore arm laughingsmiley.gif.

Before (extremely flat, acceptable surface but has some machining marks):


After (spent literally FIVE MINUTES with that ~1.5"sq piece of sand paper you see and a drop of that polish...thats it!):





Will run some base tests with my current setup by Saturday night and hopefully start installing this Sunday and re-running with everything besides the block identical. Planning to do some simple hyperpi runs at 4.5ghz, 4.7ghz, and 5ghz for people with different OC'ing chips. Since my controller currently limits me to 0c cold plate which it can hold at 4.5ghz I expect the Archimedes to be the same at 4.5ghz, slightly better at 4.7ghz, and much better at 5ghz where my current block gets overloaded and starts creeping up. That should also show in nice easy to follow numbers how a TEC behaves when it starts being ran past its rating...things get nasty QUICKLY :jest:.


Puck is offline  
Sponsored Links
Advertisement
 
post #2 of 125 (permalink) Old 06-02-2016, 07:18 PM
New to Overclock.net
 
toolmaker03's Avatar
 
Join Date: Sep 2015
Posts: 3,390
Rep: 84 (Unique: 64)
well, now you have some conception of the pain I went through sanding and polishing the 6 X CPU water blocks I have. It took me 8 weeks to do all of them working 2 to 4 hours a day. you did a great job though and the final finish looks like a mirror.

https://www.overclock.net/forum/rigbu...tle=AMD+AM3%2B
AMD AM3+
(13 items)
TEC Power
(21 items)
CPU
FX9590
Motherboard
Asus Sabertooth 990FX
GPU
GTX580
RAM
Samsung 1600
Hard Drive
Intel 520 SSD 120Gigs
Optical Drive
DVD
Power Supply
Enermax 1350
Cooling
water cooled
Monitor
Asus 27"
Keyboard
microsoft ergo
Mouse
RAT 9
Mousepad
steel series
Audio
ZX 7
CPU
3930K
Motherboard
DX79SR
GPU
GTX580
RAM
G skill 2133Mhz
Hard Drive
Intel 3700
Optical Drive
Asus
Power Supply
OCZ 1250W, TT 600W, PowerMax 4 X 500W
Cooling
9 X TEC's 250W 15A 24V
Cooling
Standard Water cooling to cool the TEC's 6 X 360mm radiators
Cooling
19 X CPU water blocks
Cooling
2 X GTX580 GPU water blocks
Cooling
6 X water pumps
Cooling
3 X CPU air coolers
Case
Coustom PC case inside a vacuum chamber
Operating System
Windows 7
Monitor
Dell 30" ultra sharp
Keyboard
Blackwidow
Mouse
RAT 9
Mouse
Gaming Pad
Audio
2.1 sound
Audio
G930 head set
CPU
Intel i7 3930K
Motherboard
Intel DX79SR
GPU
GTX580
RAM
G-Skill
Hard Drive
Intel 3700
Optical Drive
Asus DVD
Power Supply
1250W
Cooling
Water Cooled
Case
H2OQPower
Operating System
Win7
Monitor
Asus
Keyboard
Razer
Mouse
R.A.T.9
▲ hide details ▲
toolmaker03 is offline  
post #3 of 125 (permalink) Old 06-02-2016, 07:23 PM
New to Overclock.net
 
foxrena's Avatar
 
Join Date: Jul 2011
Location: US
Posts: 628
Rep: 53 (Unique: 48)
Nice polishing thumb.gif Looking forward to your full test~
foxrena is offline  
Sponsored Links
Advertisement
 
post #4 of 125 (permalink) Old 06-02-2016, 07:33 PM - Thread Starter
TEC Veteran
 
Puck's Avatar
 
Join Date: Sep 2007
Posts: 1,969
Rep: 110 (Unique: 90)
Quote:
Originally Posted by toolmaker03 View Post

well, now you have some conception of the pain I went through sanding and polishing the 6 X CPU water blocks I have. It took me 8 weeks to do all of them working 2 to 4 hours a day. you did a great job though and the final finish looks like a mirror.

Trust me my arm hurt just reading about you lapping 6x waterblocks!

These were so flat and already machined smooth raw copper so it was cake though - 5 minutes tops by hand biggrin.gif.


Puck is offline  
post #5 of 125 (permalink) Old 06-04-2016, 05:44 PM - Thread Starter
TEC Veteran
 
Puck's Avatar
 
Join Date: Sep 2007
Posts: 1,969
Rep: 110 (Unique: 90)
I was busy with other projects today so did not get to do much. I did assemble the block with CLP on both the hot and cold plates, actually running out of it so now I need more for the CPU...

I also am trying a new method for helping insulation...had some Plastidip left over from messing with my beater and have always wanted to try it for insulating. I masked off the hot side, the top, plugged the temp probe hole, and the cold plate raised surface then hit it with a few thick layers both along the side of the TEC+plates and all the surfaces of the cold plate except for the exposed raised area.

I will still be stuffing it with art eraser just in case, but hopefully this not only makes it better insulated but also makes it easier to clean and remove everything. For the motherboard, it is already insulated so I won't do anything with that but replace the paper towel layer on top of the eraser.





I'll remove the masking either tonight or tomorrow morning and report back whether it looks like it will work or not smile.gif. If so, I will be using it to insulate my next GPU when I run the two TEC chillers on it...still waiting to see what the 490x brings to the table but 2x8GB 480s for only ~$460 is crazy tempting...


Puck is offline  
post #6 of 125 (permalink) Old 06-04-2016, 06:21 PM
New to Overclock.net
 
foxrena's Avatar
 
Join Date: Jul 2011
Location: US
Posts: 628
Rep: 53 (Unique: 48)
The plastic dip thing is interesting.rolleyes.gif Did you spray into the gap between cold and hot plate?
foxrena is offline  
post #7 of 125 (permalink) Old 06-04-2016, 06:52 PM - Thread Starter
TEC Veteran
 
Puck's Avatar
 
Join Date: Sep 2007
Posts: 1,969
Rep: 110 (Unique: 90)
Quote:
Originally Posted by foxrena View Post

The plastic dip thing is interesting.rolleyes.gif Did you spray into the gap between cold and hot plate?

Yep, sprayed it into the gap along the edge of the TEC as well. It came out OK, but my last coat was too thick (in a rush) so it bubbled a bit and I let it try too much before removing the masking tape so the edges arent as clean as I'd like. Still keeping it on though, will add some art eraser on top of it and hopefully will make it better insulated and easier to clean.



Puck is offline  
post #8 of 125 (permalink) Old 06-04-2016, 09:30 PM
The 6502 Still Rocks
 
Master Chicken's Avatar
 
Join Date: Feb 2016
Location: Sanford, FL.
Posts: 686
Rep: 30 (Unique: 28)
Are those 18awg leads on that 40amp TEC? I'll never understand that. Please tell me they're at least 14ga or 12ga and that I'm just underestimating. Do you just clip them short and run a heavier gauge to a splice?

That use of plasti-dip is really interesting. Looking good.

My block is in the mail. smile.gif
Master Chicken is offline  
post #9 of 125 (permalink) Old 06-05-2016, 07:42 AM - Thread Starter
TEC Veteran
 
Puck's Avatar
 
Join Date: Sep 2007
Posts: 1,969
Rep: 110 (Unique: 90)
Quote:
Originally Posted by Master Chicken View Post

Are those 18awg leads on that 40amp TEC? I'll never understand that. Please tell me they're at least 14ga or 12ga and that I'm just underestimating. Do you just clip them short and run a heavier gauge to a splice?

That use of plasti-dip is really interesting. Looking good.

My block is in the mail. smile.gif

Yea, 18AWG leads. I would love to see larger but they aren't really necessary once you keep in mind that data sheet is basically all theoretical and bogus.

They are not ran anywhere near their theoretical Imax which is at an impossible 74Dt. At 12v w/~150w load it will be more like ~35Dt, 216Qmax, and 18a. Since I know you know your stuff with electronics, thats probably plenty of info for ya. For those without a ton of electronics experience I'll explain a bit more...

While 18a is still slightly higher then the 16a rating of 18AWG, that is a conservative rating due to many factors that effect a wires load handling ability like ambient temperature and length of wire. It depends heavily on length of the wire, temperature of the environment, and how many load carrying wires are in the bundle. For 1-3 load carrying wires together in a ~23-25c case over a very short distance it will be fine smile.gif. More important then the wire though, it is too much for one connector - which is why we solder them to multiple wire PCIE connectors to spread the load. While 18a on an 18AWG is fine for a short length, we wouldn't want 18a on one molex pin...it will melt the connector.


Puck is offline  
post #10 of 125 (permalink) Old 06-05-2016, 10:26 AM
The 6502 Still Rocks
 
Master Chicken's Avatar
 
Join Date: Feb 2016
Location: Sanford, FL.
Posts: 686
Rep: 30 (Unique: 28)
It occurred to me that the wires may terminate on the cold side of the TEC in which case some of the heat will be drawn out of them. As the current goes up, more heat is drawn out.

I'm looking to run one of these with a peak input of 850 watts ... 85% of their rated 1KW input. I don't think there's any point in running past 85% on just about any TEC as the COP curve really gets ugly beyond that point. I know the impedence can shift a bit with temperature differential but generally this TEC seems to be about 5/8th's of an Ohm. That 850 watts would put me at 23 volts and 36.9 amps at that impedence. Until I test, I'm just estimating of course. For example, in spite of its ratings, I may not want to run this TEC past 750 watts when I wring it out. You guys have indicated that this TEC's ratings are a bit aspirational and so I may have to adjust my assumptions.

Again, that 850 watts is just the occasional peak ... not a continuous condition. If I order some of these, I'm thinking of trying to get the Aluminum Nitride substrate, metalized surfaces, and maybe a slightly larger wire gauge if they offer it.

I agree though, you're perfectly fine where you're running given all of the mitigating factors you mentioned.

I'm really looking forward to your testing. I think I noticed that you are changing out both the block and TEC at the same time on this. I assume some of your gain will potentially come from being at a better spot on the COP curve with this larger TEC and perhaps not just with the advanced block alone.

I'm off to build some boards today on an unrelated item ... a pump driver. I'll keep an eye out for your progress.

Master Chicken is offline  
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Overclock.net - An Overclocking Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off