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2 Stage Cascade Build Log
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Always Work Great sdumper :)
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Hi
As always, beautiful ;)
When the planned completion of your unit.
Ask for information such as unit costs.
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I will finish by next weekend hopefully...
PM sent...
Main problem is shipping cost to Poland even with my 80% discount will still likely run you 300.00 because I have to ship in a crate.
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Looking good, next weekend really?
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Quote:
Originally Posted by
SteveRo
Looking good, next weekend really?
Thats my target :).
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Quote:
Originally Posted by
sdumper
I will finish by next weekend hopefully...
PM sent...
Main problem is shipping cost to Poland even with my 80% discount will still likely run you 300.00 because I have to ship in a crate.
May I ask for the price and shipping price to India?? And can I apply for your 80% shipping discount, :p:
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My prices vary depending on options.
Shipping to India would make this too expensive though. Try someone closer :)
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Quote:
Originally Posted by
SteveRo
Looking good, next weekend really?
I have completed all brazing except for the expansion tank because its late arriving. I am pressure testing the second right now at 300 psi and its holding with no leak bubbles so I am anticipating shipping Monday maybe Tuesday if thats cool.
Note I still have a good bit of electrical to do because I like to go very slow with this piece of the work for obvious reasons.
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sounds great!, take your time tweaking I do not want to rush you.
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I have second stage Ice and most of the electrical and insulation done...
I still need to cut holes in the stand for the digital display, the on/off switches and suction line retainer and then wire it together.
I am taking the rest of the day off because I am getting bitten all over by mosquitoes even with deep woods off on...
Lets target a shipment date of Wednesday...
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How much load are you tuning this one for and how cold will it get?
Looks great as always Scott! :up:
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300 watts
Im not sure about the max temps because its not charged for full load yet and my garage is 82f at night.
I hope it will do an idle of -105/-106c with a 300 watt load of -90/-95c maybe a little colder but am not certain yet.
This is the same specs as Chipsys but a different evap...
Just noticed I have some screws missing...:) That handle is not even secure and that wont do...
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man you realy like those harbor freight carts.
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That will work for cpu's & most gpu's :)
great unit scott!
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Quote:
Originally Posted by
stangracin3
man you realy like those harbor freight carts.
They look perfetc for cascades:D
Good job man!!!
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@Scott - looking good.
Friday shipping is fine.
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Quote:
Originally Posted by
stangracin3
man you realy like those harbor freight carts.
I dont have a preference for using a cart but most people prefer to spend 50.00 extra for me to buy them a cart rather than the 400.00 option for me to provide a powder coated custom case.
I personally like carts because they are easy to push around and if it were me I would chose the 50.00 option any day of the week :)
Quote:
Originally Posted by
quintus
Good job man!!!
Thanks!!
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If your willing to try a new setup, you can do steel square casings for about $100 actually.
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good lookin unit sdumper... id wish i had the skillz to build units like you do
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Quote:
Originally Posted by
n00b 0f l337
If your willing to try a new setup, you can do steel square casings for about $100 actually.
I dont mind its all a matter of what people want to pay for. Can you toss me a link?
I am also considering welding some homemade carts but im a novice to steel welding so it may be more expensive to make than buy.
Started load testing and will wrap up tonight...note I had to move inside because its too hot to work outside...this things really heats my office up quick :(
http://i190.photobucket.com/albums/z...e/DSCF0949.jpg
http://i190.photobucket.com/albums/z...e/DSCF0955.jpg
http://i190.photobucket.com/albums/z...e/DSCF0954.jpg
http://i190.photobucket.com/albums/z...e/DSCF0953.jpg
http://i190.photobucket.com/albums/z...e/DSCF0950.jpg
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Pickup a MIG welder; wire flux from Harbor Freight is $120 ish and is decent for very light steel welding.
Then pick some square steel size and practice practice. The steel and wheels for a casing should be under $100.
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Quote:
Originally Posted by
n00b 0f l337
Pickup a MIG welder; wire flux from Harbor Freight is $120 ish and is decent for very light steel welding.
Then pick some square steel size and practice practice. The steel and wheels for a casing should be under $100.
Why a MIG cant I just use Oxy/Acet or will it be an uneven weld?
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Yeah I guess you could, I prefer the electrical welding processes.
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MIG welding will be much better in the long run.
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Quote:
Originally Posted by
Gunslinger
MIG welding will be much better in the long run.
Becuse of rust?
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ok so -98 at 300w - looking good :)
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Quote:
Originally Posted by
quintus
Becuse of rust?
No, ease of use more than anything. MIG welding is pretty easy to do.
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You guys who have 2 gas torches like acetylene/oxygen can buy flux coated brass rods to gas braze steel............no need for a mig welder.......But if you do buy a mig get one that uses gas as a shielding gas. fluxed core wire is expensive and doesn' t weld as well.
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Fluxed core is better for certain jobs, but normal is indeed considered better. Flux however can be cheaper, doesn't require a purging gas, and on small jobs like ours is more then good enough with proper application of skill.
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Looking good Scott :up: Regarding the carts I'd estimate how long it would take for you to fabricate one, multiply that time by ~3, and then decide if it is cheaper to just buy a cart. I have a feeling it'll be cheaper to let the factories in China pump out the carts and then brace them with a little angle or continue using the wood as you have been.
Quote:
Originally Posted by
Gunslinger
No, ease of use more than anything. MIG welding is pretty easy to do.
A monkey can do it. By far the easiest of the options. If you can hot glue pieces of cardboard together you can MIG weld.
Quote:
Originally Posted by
quintus
Becuse of rust?
It takes a bit more skill to braze steel together I have found. Way faster and cleaner to MIG and grind. I tried to gas braze steel before, it didn't end well.
Quote:
Originally Posted by
wdrzal
You guys who have 2 gas torches like acetylene/oxygen can buy flux coated brass rods to gas braze steel............no need for a mig welder.......But if you do buy a mig get one that uses gas as a shielding gas. fluxed core wire is expensive and doesn' t weld as well.
Agreed on the gas shielding. Used an argon shielded MIG and it was awesome. Sometimes I wish I had a job that would warrant buying one.
Quote:
Originally Posted by
n00b 0f l337
Fluxed core is better for certain jobs, but normal is indeed considered better. Flux however can be cheaper, doesn't require a purging gas, and on small jobs like ours is more then good enough with proper application of skill.
Meh. Argon doesn't evaporate, for light welding it'll last long enough. I think I was using a 75/25 Ar/CO2 blend and it was silly easy.
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The cascade is working great - evaporator head holds at -109 to -104 under load depending on the ambient temps (really heats up the room!).
The temp sensor next to the socket, touching the IHS is showing deltaT of ~-80 relative to ambient under load
Much thanks to Mr Dumper for what so far appears to be a very nice machine.
My only complaint - probably a common one - start up time - it appears I need to wait 25-30 minutes for stage 1 pressure to drop to 75-85psi prior to starting up stage 2.
This is after about 6 tests (Fri-Sun).
So that is the good news - the bad news is my 980 does not seem to be reacting well to the cold - not overclocking nearly as well as I was expecting. looks like I will be lucky to get 5.2 stable.
Still playing around with the evap to 980 mounting - since I am a newbie - that could be the problem.
Any advice on how to make sure I am getting good connectivity?
How tight should I crank down on the screws?
FYI - using ceramique
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just let it drop to -45c on the first before starting and use a decent bit of paste.
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How/where do i measure the first?
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Quote:
Originally Posted by
SteveRo
How/where do i measure the first?
The first has a k type probe wire. Hook it up to a a temp reader or just wait for the second stage pressure to drop to 105psi.
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Very good - i will look for the probe wire when I am home tonight - funny i didn't notice it before.
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Quote:
Originally Posted by
SteveRo
Very good - i will look for the probe wire when I am home tonight - funny i didn't notice it before.
it runs out of the Heat Exchanger which is the rectangular shaped object covered in black insulation.
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Quote:
Originally Posted by
SteveRo
the bad news is my 980 does not seem to be reacting well to the cold - not overclocking nearly as well as I was expecting. looks like I will be lucky to get 5.2 stable.
Still playing around with the evap to 980 mounting - since I am a newbie - that could be the problem.
Any advice on how to make sure I am getting good connectivity?
How tight should I crank down on the screws?
FYI - using ceramique
How are you spreading the paste? This is crucial. Ceramique is the way to go or you could try the Indigo Xtreme that is much better then anything else but requires a perfect cure time/mount.
Plus the evap head should be no where but the exact CENTER of the IHS...
I have somewhere a mod to ad between the IHS and the Cascade evap head to hold better loads (I can't find it right now but it's basically a pure high grade cooper square that sits on top of the IHS entire surface with thermal paste). I will try to find this info for ya.
Don't expect much OC running Linx 20 passes because that will "kill" your cascade when running above 5.2ghz and big volts <- it's normal Steve.
I will hook mine up again soon and we can compare OC's :up:
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Quote:
Originally Posted by
Jor3lBR
I have somewhere a mod to ad between the IHS and the Cascade evap head to hold better loads (I can't find it right now but it's basically a pure high grade cooper square that sits on top of the IHS entire surface with thermal paste). I will try to find this info for ya.
Can you remember roughly how thick the copper was ?
I'm thinking of trying something similar with my SS. But not shure that it will help holding a load better, because we used to use them with de-lidded 939's to help get over the clod bug.
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Thanks Jor - regarding applying the ceramique - i put down a good but thin coating, completely covering the top of the IHS with a very small brush.
Also yes - linx is what I was doing and it would run - for up to about 5 seconds and then just reboot.
watching realtemp - the max temp only got to about 28C and then reboot.
tried 5.5 down to 5.3 - all reboot
vcore anywhere from 1.58 up to 1.78v, cpuvtt 1.46-1.48v, cpupll 1.3 to 1.8v, dramv 1.66 to 1.86v, cpu & pcie clock drive both at 900mv, all other v's at stock or just one click up.
Any suggestions whould be greatly appreciated
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Quote:
Originally Posted by
SteveRo
Also yes - linx is what I was doing and it would run - for up to about 5 seconds and then just reboot.
watching realtemp - the max temp only got to about 28C and then reboot.
tried 5.5 down to 5.3 - all reboot
From a Cascade ? :eek:
My SS dosn't get +C running Linx at 5ghz. Wonder what's going on there then ?
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If those are IHS temps then you have a terrible mount. I don't understand why people spread the thermal paste over the IHS. Just put a blob the size of a small pea on the center of the IHS and mount your evap. THEN take it apart and see how the paste spread. This will give you a good idea of what your contact patch is. Remount a few times till you figure out what is obstructing the mount and then you should be good to go.
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@kitfit - realtemp stays below 0 when you run linx @ 5ghz under your ss?
if i've got that right - sounds like i have a bad mount.
what cpuv where you running - i was runing up to 1.78v when at +28C.
I was at ~+18C even down to ~1.62v
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@gomeler - ihs seems to be staying ~-80C under load but realtemp goes as high as +28C just before rebooting.
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Quote:
Originally Posted by
SteveRo
@kitfit - realtemp stays below 0 when you runlinx @5ghz under your ss?
Yep, have a look at the 975 link in my sig.
Quote:
Originally Posted by
SteveRo
if i've got that right - sounds like i have a bad mount.
what cpuv where you running - i was runing up to 1.78v when at +28C.
I was at ~+18C even down to ~1.62v
My Vcore was set at 1.64v with Vdroop enabled for 5ghz, that of course is with HT on as well. With my chip, anything over 5ghz needs HT to be off. So getting to 5.3ghz/5.5ghz even with more Vcore, still keeps Real Temp at -C temps.
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Oh.. don't use software to measure temperatures. Get a probe on the evap and a probe on the IHS and use those for temperature measuring. I wedge my probe in the little dip in the IHS where the PCB numbers used to be written and I fill that area with ceramique and it is very responsive to temperature change.
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I would at least initially put a small blob of ceramique in the center of the CPU and screw the mounting down tight.
It just sounds to me like a bad mount.
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Quote:
Originally Posted by
sdumper
I would at least initially put a small blob of ceramique in the center of the CPU and screw the mounting down tight.
It just sounds to me like a bad mount.
As SDumper said here.
I follow that up by turning on the PC and bringing it into the BIOS and let it sit there with the cooling unit turned off. I do the same thing with LN2 pots.
Watch your evap/pot temps with your probe and when it gets to about 60c shut it down.
This lets the heat really spread everything out and gives GREAT contact. Its so good that you may have to do the same thing to be able to remove the evap or pot
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Quote:
Originally Posted by
SteveRo
Thanks Jor - regarding applying the ceramique - i put down a good but thin coating, completely covering the top of the IHS with a very small brush.
Also yes - linx is what I was doing and it would run - for up to about 5 seconds and then just reboot.
watching realtemp - the max temp only got to about 28C and then reboot.
tried 5.5 down to 5.3 - all reboot
vcore anywhere from 1.58 up to 1.78v, cpuvtt 1.46-1.48v, cpupll 1.3 to 1.8v, dramv 1.66 to 1.86v, cpu & pcie clock drive both at 900mv, all other v's at stock or just one click up.
Any suggestions whould be greatly appreciated
Like the others have said, don't use realtemp, once you go subzero the mobo's sensors go bonkers... IHS probe + digi-thermometer.
About the mount, you place the evap in position and DO NOT FREEZE it right away. You boot on stock settings and let the temps sit around +60-75c...
Now it's the time to tighten the screws, when the paste is nice and smooth from the heat. After that let it go back to +20C or so and then it's time to power the cascade.
Quote:
Originally Posted by
kitfit1
Can you remember roughly how thick the copper was ?
I'm thinking of trying something similar with my SS. But not shure that it will help holding a load better, because we used to use them with de-lidded 939's to help get over the clod bug.
Here it is kitfit, placing this between the Evap and the IHS holds the temps a little longer:
http://www.petrastechshop.com/2x2x1cobl.html
It's out of stock forever I would like to order a couple, kitfit if you have any contacts to make those let us know.
:up:
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Thanks guys - all good tips - I will work on this later in the week - planning on taking off on Friday :)
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Quote:
Originally Posted by
Jor3lBR
It's out of stock forever I would like to order a couple, kitfit if you have any contacts to make those let us know.
:up:
Its just copper brother you can order that stuff anywhere, try www.mcmastercar.com
heres where it is http://www.mcmaster.com/#copper-alloys/=7yaney they have insulation too, they have EVERYTHING.
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ok - progress - looks like my mount is a bit better. :up::):)
suggestions on how to proceed from here?
voltages?
how much bclock and/or multi to step up at a time?
edit - ignore the easytune - I didn't capture the right column - cpuv was set to ~1.55v
http://img686.imageshack.us/img686/8015/66348259.png
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Good morning, Ok I've had this cascade for about 2.5 weeks now and both the cascade and my i7 980 are both holding up well.
I want to commend my builder Mr Dumper - for a job well done :up:
So links to other posts - OCing using this cascade -
5.0 linx stable - http://www.xtremesystems.org/forums/...&postcount=711 :up:
5.4 pcmv stable with happy snaps - http://www.xtremesystems.org/forums/...d.php?t=255686 :up:
Progress report pursuing pcmv WR - http://www.xtremesystems.org/forums/...&postcount=137 :)
I have improved my pcmv WR score a little - now at 37403 - http://service.futuremark.com/compare?pcmv=344366 :D
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