Won't matter much to me.........

Message boards : Number crunching : Won't matter much to me.........
Message board moderation

To post messages, you must log in.

Previous · 1 · 2 · 3 · 4 · Next

AuthorMessage
Grant (SSSF)
Volunteer tester

Send message
Joined: 19 Aug 99
Posts: 8982
Credit: 116,408,366
RAC: 60,883
Australia
Message 1381780 - Posted: 16 Jun 2013, 9:08:42 UTC - in response to Message 1381512.  

Ambient air cooling is all I got.
Two fans in the garage ceiling draw the hot air out and the cool air in through a window in the bathroom. They create quite a vacuum.

What is the Relative Humidity on the hot days?

Grant
Darwin NT
ID: 1381780 · Report as offensive
juan BFPProject Donor
Volunteer tester
Avatar

Send message
Joined: 16 Mar 07
Posts: 6165
Credit: 352,624,733
RAC: 137,403
Panama
Message 1381790 - Posted: 16 Jun 2013, 10:06:04 UTC - in response to Message 1381779.  
Last modified: 16 Jun 2013, 10:07:13 UTC

In my cases i use 2-4 12" fans (the same used on the big PSU´s) depends on the combination of the GPUs, 2 on the 690 and 4 on the 590.

<snip>

Another set of 2 x12" fans to take care of the front exaust of the 590/690 GPU´s, this time normal exaust, the rear exaust i leave to the GPU internal fan.


I think you mean 12 centimeters not 12 inches.

Yes, sorry here we only uses metric system.
ID: 1381790 · Report as offensive
Profile Paul D Harris
Volunteer tester

Send message
Joined: 1 Dec 99
Posts: 1122
Credit: 33,600,005
RAC: 0
United States
Message 1381884 - Posted: 16 Jun 2013, 17:49:56 UTC

One summer my ac went out and it got 106 in my living room where my cruncher is and it kept on crunching no problem. The way I understand it if my computer uses 300 watts to crunch it is not the same as 300 watts of heat because all the electricity is being used not to produce heat but to crunch with some heat as a by product. Similar to a 100 watt incandescent light bulb produces more heat than 100 watt florescent bulb which produces no heat. They both use 100 watts electricity one produces heat and the other does not. Computes are much the same they do all kinds of stuff but their design is not to produce heat. A 1500 watt computer does not produce as much heat as a 1500 watt space heater.


ID: 1381884 · Report as offensive
kittymanSpecial Project $250 donor
Volunteer tester
Avatar

Send message
Joined: 9 Jul 00
Posts: 49155
Credit: 882,106,053
RAC: 184,923
United States
Message 1381892 - Posted: 16 Jun 2013, 18:11:30 UTC

It's getting a tad toasty in here today.
I already had 2 rigs shut down to ask me to remove their cooling fans and remove the kitty fur buildup.
A kitty keeps loneliness away.
More meowing, less hissing. I speak meow, do you?

Have made friends in this life.
Most were cats.
ID: 1381892 · Report as offensive
Profile ClydeSpecial Project $75 donor
Volunteer tester
Avatar

Send message
Joined: 9 Aug 99
Posts: 10669
Credit: 43,612,121
RAC: 12,131
United States
Message 1381901 - Posted: 16 Jun 2013, 18:38:36 UTC - in response to Message 1381892.  

It's getting a tad toasty in here today.
I already had 2 rigs shut down to ask me to remove their cooling fans and remove the kitty fur buildup.

Here, near Ft. Lauderdale Florida, 87 Degrees & 77 Humidity, and not REALLY summer yet. A/C basically 24/7 now.

Keep side panel off desktop and always cleaning kitty fur from desktop and laptops.

My kitty's, Ralph - Trixie - Charlotte - Arthur - Smidgeon, say Hello.
ID: 1381901 · Report as offensive
kittymanSpecial Project $250 donor
Volunteer tester
Avatar

Send message
Joined: 9 Jul 00
Posts: 49155
Credit: 882,106,053
RAC: 184,923
United States
Message 1381903 - Posted: 16 Jun 2013, 18:41:34 UTC - in response to Message 1381901.  

It's getting a tad toasty in here today.
I already had 2 rigs shut down to ask me to remove their cooling fans and remove the kitty fur buildup.

Here, near Ft. Lauderdale Florida, 87 Degrees & 77 Humidity, and not REALLY summer yet. A/C basically 24/7 now.

Keep side panel off desktop and always cleaning kitty fur from desktop and laptops.

My kitty's, Ralph - Trixie - Charlotte - Arthur - Smidgeon, say Hello.

Hello back to the kitties.
With 5 of the rascals running about, I am sure you understand a bit about kitty fur.
As they say, kitty hair is everywhere.
A kitty keeps loneliness away.
More meowing, less hissing. I speak meow, do you?

Have made friends in this life.
Most were cats.
ID: 1381903 · Report as offensive
Josef W. Segur
Volunteer developer
Volunteer tester

Send message
Joined: 30 Oct 99
Posts: 4504
Credit: 1,414,761
RAC: 0
United States
Message 1381930 - Posted: 16 Jun 2013, 19:35:50 UTC - in response to Message 1381884.  

One summer my ac went out and it got 106 in my living room where my cruncher is and it kept on crunching no problem. The way I understand it if my computer uses 300 watts to crunch it is not the same as 300 watts of heat because all the electricity is being used not to produce heat but to crunch with some heat as a by product. Similar to a 100 watt incandescent light bulb produces more heat than 100 watt florescent bulb which produces no heat. They both use 100 watts electricity one produces heat and the other does not. Computes are much the same they do all kinds of stuff but their design is not to produce heat. A 1500 watt computer does not produce as much heat as a 1500 watt space heater.

A 100 watt incandescent bulb does produce less light and more local heat than fluorescent lighting which is also drawing 100 watts. But when the light is absorbed by what it's shining on, that converts light energy to heat energy. The thoroughly well established conservation of energy law applies, though if the light goes out a window some of the heat does not raise room temperature.

The same law applies to the space heater versus computer comparison. If you actually measure the watts being used by the computer it converts that amount of electrical energy to heat, mostly directly though some indirectly through sound or light.
                                                                  Joe
ID: 1381930 · Report as offensive
Profile betregerProject Donor
Avatar

Send message
Joined: 29 Jun 99
Posts: 6550
Credit: 15,738,254
RAC: 9,949
United States
Message 1381932 - Posted: 16 Jun 2013, 19:41:18 UTC - in response to Message 1381930.  

Ah, another person who believe in the conservation of energy.
ID: 1381932 · Report as offensive
ExchangeMan
Volunteer tester

Send message
Joined: 9 Jan 00
Posts: 115
Credit: 157,719,104
RAC: 0
United States
Message 1381934 - Posted: 16 Jun 2013, 19:48:26 UTC - in response to Message 1381930.  

One summer my ac went out and it got 106 in my living room where my cruncher is and it kept on crunching no problem. The way I understand it if my computer uses 300 watts to crunch it is not the same as 300 watts of heat because all the electricity is being used not to produce heat but to crunch with some heat as a by product. Similar to a 100 watt incandescent light bulb produces more heat than 100 watt florescent bulb which produces no heat. They both use 100 watts electricity one produces heat and the other does not. Computes are much the same they do all kinds of stuff but their design is not to produce heat. A 1500 watt computer does not produce as much heat as a 1500 watt space heater.

A 100 watt incandescent bulb does produce less light and more local heat than fluorescent lighting which is also drawing 100 watts. But when the light is absorbed by what it's shining on, that converts light energy to heat energy. The thoroughly well established conservation of energy law applies, though if the light goes out a window some of the heat does not raise room temperature.

The same law applies to the space heater versus computer comparison. If you actually measure the watts being used by the computer it converts that amount of electrical energy to heat, mostly directly though some indirectly through sound or light.
                                                                  Joe

This is interesting. So Joe, you're saying that 100% of the power draw from the AC outlet feeding the cruncher is ultimately converted into heat? I always thought that things like motors for cooling fans absorb some of the electric to convert it to motion. Also, a 150 watt CPU would use some of that energy for computation. I realize that these are very small amounts compared to the heat energy dissipated to the ambient air.

My big cruncher uses a steady state draw of over 1600 watts. I can tell you that the heat given off is quite substantial and is likely pretty close to that number of watts.

ID: 1381934 · Report as offensive
juan BFPProject Donor
Volunteer tester
Avatar

Send message
Joined: 16 Mar 07
Posts: 6165
Credit: 352,624,733
RAC: 137,403
Panama
Message 1381937 - Posted: 16 Jun 2013, 19:54:08 UTC

Not even Creditnew could change the law of energy conservation.

No matter how hard it could try.


ID: 1381937 · Report as offensive
kittymanSpecial Project $250 donor
Volunteer tester
Avatar

Send message
Joined: 9 Jul 00
Posts: 49155
Credit: 882,106,053
RAC: 184,923
United States
Message 1381939 - Posted: 16 Jun 2013, 19:57:27 UTC

Well, I can assure you that the bits of data I send back to Berkeley are not cooling things off much here....
A kitty keeps loneliness away.
More meowing, less hissing. I speak meow, do you?

Have made friends in this life.
Most were cats.
ID: 1381939 · Report as offensive
Profile Paul D Harris
Volunteer tester

Send message
Joined: 1 Dec 99
Posts: 1122
Credit: 33,600,005
RAC: 0
United States
Message 1381943 - Posted: 16 Jun 2013, 20:19:05 UTC

I can not heat my living room with my cruncher but I can with a space heater. A computer does not produce very much heat certainly can not heat a room. I suggest that solar radiation is what is heating your room because the computer did not heat it in the winter and along comes summer and now the room is warm.
ID: 1381943 · Report as offensive
Alinator
Volunteer tester

Send message
Joined: 19 Apr 05
Posts: 4178
Credit: 4,647,982
RAC: 0
United States
Message 1381949 - Posted: 16 Jun 2013, 20:37:37 UTC - in response to Message 1381943.  

I can not heat my living room with my cruncher but I can with a space heater. A computer does not produce very much heat certainly can not heat a room. I suggest that solar radiation is what is heating your room because the computer did not heat it in the winter and along comes summer and now the room is warm.


WHAT!!??

Yes, they most certainly can heat a room, and I can tell you that for a fact!

Why do you think datacenters have massive air conditioning systems?
ID: 1381949 · Report as offensive
kittymanSpecial Project $250 donor
Volunteer tester
Avatar

Send message
Joined: 9 Jul 00
Posts: 49155
Credit: 882,106,053
RAC: 184,923
United States
Message 1381951 - Posted: 16 Jun 2013, 20:39:46 UTC - in response to Message 1381949.  

I can not heat my living room with my cruncher but I can with a space heater. A computer does not produce very much heat certainly can not heat a room. I suggest that solar radiation is what is heating your room because the computer did not heat it in the winter and along comes summer and now the room is warm.


WHAT!!??

Yes, they most certainly can heat a room, and I can tell you that for a fact!

Why do you think datacenters have massive air conditioning systems?

Heck, during the winter months, I can usually heat my whole house with what is generated by my computers.
A kitty keeps loneliness away.
More meowing, less hissing. I speak meow, do you?

Have made friends in this life.
Most were cats.
ID: 1381951 · Report as offensive
Profile Wiggo "Socialist"
Avatar

Send message
Joined: 24 Jan 00
Posts: 12734
Credit: 170,941,133
RAC: 74,583
Australia
Message 1381953 - Posted: 16 Jun 2013, 20:41:52 UTC - in response to Message 1381949.  

No heat problems here this morning as it's -3C outside.

Cheers.
ID: 1381953 · Report as offensive
Alinator
Volunteer tester

Send message
Joined: 19 Apr 05
Posts: 4178
Credit: 4,647,982
RAC: 0
United States
Message 1381954 - Posted: 16 Jun 2013, 20:43:20 UTC - in response to Message 1381953.  

LOL... Yes you are now in your 'free' air conditioning season. ;-)
ID: 1381954 · Report as offensive
Profile Mark Wyzenbeek
Avatar

Send message
Joined: 28 Jun 99
Posts: 133
Credit: 4,579,233
RAC: 3,357
United States
Message 1382020 - Posted: 17 Jun 2013, 2:22:01 UTC - in response to Message 1381934.  


This is interesting. So Joe, you're saying that 100% of the power draw from the AC outlet feeding the cruncher is ultimately converted into heat? I always thought that things like motors for cooling fans absorb some of the electric to convert it to motion. Also, a 150 watt CPU would use some of that energy for computation. I realize that these are very small amounts compared to the heat energy dissipated to the ambient air.

My big cruncher uses a steady state draw of over 1600 watts. I can tell you that the heat given off is quite substantial and is likely pretty close to that number of watts.

Motors have bearings that get hot from friction. Every computation involves current flowing from transistor to transistor which generates heat
The Universe is not only stranger than you imagine, it's stranger than you can imagine.

SETI@home classic workunits 1,405 CPU time 57,318 hours
ID: 1382020 · Report as offensive
Profile Self-Identifying As an Atheist ALL-Science Believing Money fO Lyin' Fakin' Makin'Upin' HATER Alt-LEFTer Illegal Alien Not-Citizen Baker of GOoDieS fO ALL Peoples NOT Identifyin' As Straight Hetro GOPTer. IOWs, NOT a REAL American Until I'm NOT
Avatar

Send message
Joined: 16 Jun 02
Posts: 3603
Credit: 5,340,271
RAC: 2,586
Russia
Message 1382023 - Posted: 17 Jun 2013, 2:47:31 UTC

It's a science of my own that I have perfected over many years.


Ug. Me got Science. Heat go Up. Cool go Down. Fan move Air. Ug. Me got Science.

Much Like SETI Science. Ug.

Bound For IT IT.


ID: 1382023 · Report as offensive
kittymanSpecial Project $250 donor
Volunteer tester
Avatar

Send message
Joined: 9 Jul 00
Posts: 49155
Credit: 882,106,053
RAC: 184,923
United States
Message 1382024 - Posted: 17 Jun 2013, 2:51:02 UTC - in response to Message 1382023.  
Last modified: 17 Jun 2013, 2:56:02 UTC

It's a science of my own that I have perfected over many years.


Ug. Me got Science. Heat go Up. Cool go Down. Fan move Air. Ug. Me got Science.

Much Like SETI Science. Ug.

Bound For IT IT.

Glad you got it figured out...LOL.
Let me know when you publish your next paper on thermodynamics.
A kitty keeps loneliness away.
More meowing, less hissing. I speak meow, do you?

Have made friends in this life.
Most were cats.
ID: 1382024 · Report as offensive
bill

Send message
Joined: 16 Jun 99
Posts: 861
Credit: 29,115,679
RAC: 3,016
United States
Message 1382025 - Posted: 17 Jun 2013, 3:00:49 UTC - in response to Message 1381943.  

I can not heat my living room with my cruncher but I can with a space heater. A computer does not produce very much heat certainly can not heat a room. I suggest that solar radiation is what is heating your room because the computer did not heat it in the winter and along comes summer and now the room is warm.


I have a 6 to 8 degree F in my room depending whether
or not the computer is off or on dunning S@H, winter
or summer.

It may be not enough for you to notice, but it all
still turns to heat eventually.


ID: 1382025 · Report as offensive
Previous · 1 · 2 · 3 · 4 · Next

Message boards : Number crunching : Won't matter much to me.........


 
©2017 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.