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Helpful ReplyGet It Colder II

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seabigbear
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Re:Get It Colder......2 2010/08/26 18:11:37 (permalink)

Halo_003
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Re:Get It Colder......2 2010/08/28 19:08:12 (permalink)




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xxrabid93
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Re:Get It Colder......2 2010/08/28 19:54:17 (permalink)
Halo_003 

*snip*




Now maybe you can get some points at HWBot.
reggiesanchez
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Re:Get It Colder......2 2010/08/28 21:48:12 (permalink)
Seemed appropriate

For 1600
post edited by reggiesanchez - 2010/08/28 21:51:50
Rudster816
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Re:Get It Colder......2 2010/08/29 02:42:48 (permalink)
For every point we loose at HWBot, this happens

http://www.collegehumor.com/video:1812492

Save the LN2!

[22:00:32] NordicJedi: the only way i can read this chatroom is if i imagine you're all dead
 

reggiesanchez
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Re:Get It Colder......2 2010/08/31 13:28:55 (permalink)
hey q did you pic up blocks for your 9800's? Threads getting boring. Walleye you got anything planned for the winter youve been pretty quite lately. Im getting my upgraded window rad system ready as we speak.
xxrabid93
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Re:Get It Colder......2 2010/08/31 14:00:35 (permalink)
Ok, i've been saving up, possibly for a SS. For me, is it worth it? Remember, i'm a senior in hs, so i still have 5 or so years of not paying the electric bill.

Also, sdumper said he tunes his for -40*C @ 300w. I have always wondered something about this. If i put a lesser load on it, say 150w, will the temp be lower (ex. -70*C), or does it only go to -40*C, but it can stay there up to 300w?

I'm just thinking, because my dice place is far away, and with phase i could be up and benching immediately. I would think this would be nice for me especially now during the school year, because i have alot less time to bench.
reggiesanchez
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Re:Get It Colder......2 2010/08/31 14:14:51 (permalink)
You should just ask him, it was to my understanding that tuning to 300w just meant that it could remove that amount of heat safely with out shortening the compressors life span by overheating the compressor or letting refridgerant enter or leave during the wrong phase.All while pulling an efficient amount of energy from the wall.  However I am not sure. Just my take on it. Keep in mind I have been building a ss unit for around 4 months now still nothing to show for it but empty bank account and cool new tools so take my opinion with a grain of salt.

You might want to mention it to him if you are planning on using it for your 775 system it might save him some time and you some money if he only tunes for 225-250 or so. Pretty sure extra steps/equipment needed to pass the 250 barrier.
post edited by reggiesanchez - 2010/08/31 14:20:56
xxrabid93
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Re:Get It Colder......2 2010/08/31 14:21:56 (permalink)
Thanks Reg. I'm pretty sure my main rig (i7) would get some SS love if i got one.
reggiesanchez
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Re:Get It Colder......2 2010/08/31 14:37:43 (permalink)
Cool, I am pretty jealous hope you end up getting it. I thought about buying one but ive just bought to many tools to give up.
xxrabid93
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Re:Get It Colder......2 2010/08/31 15:46:59 (permalink) ☄ Helpful
Keep trying man. You'll eventually get it. Then maybe you could be our SS supplier, and Nate our ln2/dice pot supplier!
Halo_003
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Re:Get It Colder......2 2010/08/31 18:05:17 (permalink)
Wow that would be so awesome.

I may look at a SS but idk.. It's a lot of $$$ for what it is. Also I don't know my college plans yet looking at Air Force/Navy Academies so I doubt a rig like mine would be at home there. Anyways, I'm just on stock cooling for now 'cause I'm putting off going water because I find paying for a flight to Chitown to go to homecoming with my gf is more important.

Rabid you're a senior? I'm a junior. 

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xxrabid93
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Re:Get It Colder......2 2010/08/31 19:23:25 (permalink)
Halo_003

Wow that would be so awesome.

I may look at a SS but idk.. It's a lot of $$$ for what it is. Also I don't know my college plans yet looking at Air Force/Navy Academies so I doubt a rig like mine would be at home there.

Yea, i'm definitely not gonna jump on it or anything; gonna think about it for a good long time. One major positive i would think is at college i don't know if they would like dice/ln2 in the dorms.
 
Halo_003 

a flight to Chitown to go to homecoming with my gf is more important.

 
Pshh, ditch her and come to my house and bench with me. And maybe we could get Reg here cause he's in ohio.
 
Halo_003
Rabid you're a senior? I'm a junior. 


 
lol jk. But dude, best part of senior year so far is definitely off campus lunch. It's so nice getting out of the noisy, overcrowded cafeterias/school.
Halo_003
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Re:Get It Colder......2 2010/08/31 19:28:55 (permalink)
xxrabid93

Halo_003 

a flight to Chitown to go to homecoming with my gf is more important.

 
Pshh, ditch her and come to my house and bench with me. And maybe we could get Reg here cause he's in ohio.




lol yeahh no way not if I want to keep her as my gf.


Junior ftw.

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xxrabid93
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Re:Get It Colder......2 2010/08/31 19:33:38 (permalink)
Halo_003

xxrabid93

Halo_003 

a flight to Chitown to go to homecoming with my gf is more important.


Pshh, ditch her and come to my house and bench with me. And maybe we could get Reg here cause he's in ohio.




lol yeahh no way not if I want to keep her as my gf.


Junior ftw.


I though you lost your gf after playing KOTOR for 87 hours? http://forums.evga.com/tm.aspx?m=543855  haha jk
 
Oh, and remember i was a junior once. Once your a senior it is totally different. Seniors ftw.
reggiesanchez
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Re:Get It Colder......2 2010/08/31 20:04:24 (permalink)
almost came to chicago for the taste of chicago last month, decided not to though. Going to vegas soon instead. If I took time off from work and went out of the state to bench with two highschool kids I would be looking for a new house when I got back.


Just scored one of these from someone on CraigsList Looks promising
Halo_003
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Re:Get It Colder......2 2010/08/31 20:24:26 (permalink)
Rabid Juniors are better 'cause Juniors can date anyone in HS. Seniors are limited to Sophmores/Juniors/Seniors. Therefore, Junior ftw.


LOL Reggie I bet so haha.

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Rudster816
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Re:Get It Colder......2 2010/08/31 20:42:57 (permalink)
reggiesanchez

almost came to chicago for the taste of chicago last month, decided not to though. Going to vegas soon instead. If I took time off from work and went out of the state to bench with two highschool kids I would be looking for a new house when I got back.


Just scored one of these from someone on CraigsList Looks promising


xxrabid93

Halo_003

xxrabid93

Halo_003 

a flight to Chitown to go to homecoming with my gf is more important.


Pshh, ditch her and come to my house and bench with me. And maybe we could get Reg here cause he's in ohio.




lol yeahh no way not if I want to keep her as my gf.


Junior ftw.


I though you lost your gf after playing KOTOR for 87 hours? http://forums.evga.com/tm.aspx?m=543855  haha jk
 
Oh, and remember i was a junior once. Once your a senior it is totally different. Seniors ftw.


I will have to agree with Rabid, Seniors FTW. Than again, Im a bit biased, because im a Senior myself

[22:00:32] NordicJedi: the only way i can read this chatroom is if i imagine you're all dead
 

xxrabid93
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Re:Get It Colder......2 2010/08/31 21:49:36 (permalink)
@Reggie: How much for the Biostar TPower i45? I have really wanted that board, but cant find it for a decent price anywhere. It is a sick board btw. Can get crazy fsb, like 700+ if you have the ram to go with it.

@Halo: Now you lose cause it's 2 to 1 in favor of seniors. Ha!
RBIEZE
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Re:Get It Colder......2 2010/09/01 05:27:59 (permalink)
xxrabid93

Ok, i've been saving up, possibly for a SS. For me, is it worth it? Remember, i'm a senior in hs, so i still have 5 or so years of not paying the electric bill.

Also, sdumper said he tunes his for -40*C @ 300w. I have always wondered something about this. If i put a lesser load on it, say 150w, will the temp be lower (ex. -70*C), or does it only go to -40*C, but it can stay there up to 300w?

I'm just thinking, because my dice place is far away, and with phase i could be up and benching immediately. I would think this would be nice for me especially now during the school year, because i have alot less time to bench.


Basically you will only see -40c.

The real problem is that if a system is tuned for 300watts and you only load at 100watts , you my have refrigerant flood-back to the compressor(Liquid Slugging).

That is Very, Very bad, and can destroy a compressor quickly, as liquids are Non Condensible.

I know Sdumper is a good builder,and uses suction accumulators which help against floodback.
But if you dont tell him your intended usage he can't compensate for a lower thermal load.
If he knows before hand its a simple fix.
All that's necessary is to lengthen the cap-tube(or go with a smaller I.D.) for a lower load, and this in turn can yield lower temperatures.

Capacity and temperature are interrelated, lower temps yield a lower capacity/ higher temps yield a higher capacity (heat-load)

If you have any more refrigeration questions feel free to P.M me



They say opposites attract. I hope you meet someone who is good-looking, intelligent, and cultured.
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Re:Get It Colder......2 2010/09/01 09:33:52 (permalink)
Thanks for the explanation rbeize, sounds alot better when someone who knows what there talking about explains it, nice to see I was almost there though.

Rabid I traded a gts 250 for it, he had it listed for 70 bucks cash
xxrabid93
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Re:Get It Colder......2 2010/09/01 13:57:47 (permalink)
reggiesanchez

Thanks for the explanation rbeize, sounds alot better when someone who knows what there talking about explains it, nice to see I was almost there though.

Rabid I traded a gts 250 for it, he had it listed for 70 bucks cash


Yea, thanks Rbeize, what you said is really helpful.
 
Reg, $70; that's a damn good deal for that board.
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Re:Get It Colder......2 2010/09/01 15:34:54 (permalink)
Just got it set up on air, got 4ghz on e5300 in 3 boots
xxrabid93
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Re:Get It Colder......2 2010/09/01 15:40:41 (permalink)
reggiesanchez

Just got it set up on air, got 4ghz on e5300 in 3 boots


Nice. I got my e5200 set up on my DFI LP UT P35 T2RS last night, and i'm hoping i can get in some work with it tonight.
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Re:Get It Colder......2 2010/09/01 15:52:35 (permalink)
xxrabid93

reggiesanchez

Just got it set up on air, got 4ghz on e5300 in 3 boots


Nice. I got my e5200 set up on my DFI LP UT P35 T2RS last night, and i'm hoping i can get in some work with it tonight.


LOL, sounds like a familiar CPU.

They say opposites attract. I hope you meet someone who is good-looking, intelligent, and cultured.
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Re:Get It Colder......2 2010/09/01 16:28:51 (permalink)
Currently looking for a cheap AC unit on Craigslist, I figured now would be as good as time as ever with summer just ending. I only have $80, hopefully I'll be able to score something. I know we have a igloo cooler in our garage, not sure if my dad will let me hack it up though .

Have any of you tried running your chillers outside during the winter? I was wondering if they still worked, I know that the gases they use rely on certain ambient temperatures in order for the gas to change phases properly. I was curious to see if they still worked, It would be nice to be able to get evap that much colder.

[22:00:32] NordicJedi: the only way i can read this chatroom is if i imagine you're all dead
 

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Re:Get It Colder......2 2010/09/01 19:00:51 (permalink)
Rudster816

Currently looking for a cheap AC unit on Craigslist, I figured now would be as good as time as ever with summer just ending. I only have $80, hopefully I'll be able to score something. I know we have a igloo cooler in our garage, not sure if my dad will let me hack it up though .

Have any of you tried running your chillers outside during the winter? I was wondering if they still worked, I know that the gases they use rely on certain ambient temperatures in order for the gas to change phases properly. I was curious to see if they still worked, It would be nice to be able to get evap that much colder.


I'm going to give it a shot, or at least rig something up to help continuously maintain -20C with 2 fermi's at 100% load.  Now I have to wait a little bit between bench runs to get the chiller back up.  Before with my 2 295's it was bench at will....not with the heat of the fermi's.  It's amazing they don't melt the pci-e slot, LOL!

I can't wait for winter



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reggiesanchez
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Re:Get It Colder......2 2010/09/01 19:29:50 (permalink)
Thats why I only had a 470 for 2 days, that was a terrible card it idled at 70 degrees on air. I didnt even feel like going through it trying to chill that card. the 480s however well those look like they might be a little more fun.
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Re:Get It Colder......2 2010/09/02 05:24:24 (permalink)
Rudster816

Currently looking for a cheap AC unit on Craigslist, I figured now would be as good as time as ever with summer just ending. I only have $80, hopefully I'll be able to score something. I know we have a igloo cooler in our garage, not sure if my dad will let me hack it up though .

Have any of you tried running your chillers outside during the winter? I was wondering if they still worked, I know that the gases they use rely on certain ambient temperatures in order for the gas to change phases properly. I was curious to see if they still worked, It would be nice to be able to get evap that much colder.


No its a very bad idea to run a refrigeration system at that low of a condensing temperature.
typically units that are run in the winter use a "head pressure control" essentially it just shuts off the condensor fan to allow the condensing temperature/pressure to rise to an acceptable level.

The problem is that at low temp,  lower pressure is required for the refrigerant to condense from vapor into the liquid,
this in turn will massively reduce the cooling capacity of a unit, as you have now decreased the actual amount of refrigerant traveling through the metering device(captube,txv, etc...)

this will result in poor metering,reduced capacity, and possibly overheating of the compressor, remember the compressor is cooled by the returning evaporated refrigerant vapor, decrease that and BAD things happen.

and NO, running the unit outside in the winter will not yield lower temperatures, because ...again you have reduced the liquid refrigerant pressure.

I hope I explained this properly, I haven't had my cup of coffee yet and am kinda sleepy still.



They say opposites attract. I hope you meet someone who is good-looking, intelligent, and cultured.
http://www.youtube.com/watch?v=W2WsPN-rr9o
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Rudster816
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Re:Get It Colder......2 2010/09/02 10:48:49 (permalink)
I dont think just having the condenser outside would do anything, would it? Because I know the colder the condenser is, the colder the evaporator will get.

[22:00:32] NordicJedi: the only way i can read this chatroom is if i imagine you're all dead
 

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