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Other => CPU/GPU Bitcoin mining hardware => Topic started by: marvinmartian on June 30, 2011, 07:15:52 PM



Title: FYI: your basement might be warmer at night
Post by: marvinmartian on June 30, 2011, 07:15:52 PM
If your central AC is cooling your house in order to compensate for the sun heating it up (and hence cooling your rig in the basement nicely) remember that it won't feel the need to cool as much at night (since your upstairs is cooler due to lack of sunlight).

EG.,  my basement temps rise about 2-3 degrees overnight.



Title: Re: FYI: your basement might be warmer at night
Post by: BiggieJohn on July 01, 2011, 05:33:23 AM
What is this "basement" you speak of . .  . heh

thats one thing I miss moving from WI to TX


Title: Re: FYI: your basement might be warmer at night
Post by: Sannyasi on July 01, 2011, 05:40:47 AM
what is this 'upstairs' you speak of?.....


Title: Re: FYI: your basement might be warmer at night
Post by: bunnybare on July 01, 2011, 05:46:53 AM
What is this "house" you mentioned?


Title: Re: FYI: your basement might be warmer at night
Post by: sniper_sniperson on July 01, 2011, 06:22:27 AM
What is this 'AC' you mentioned about?


Title: Re: FYI: your basement might be warmer at night
Post by: miningnew on July 01, 2011, 01:20:22 PM
What is this "sun" you mentioned?


Title: Re: FYI: your basement might be warmer at night
Post by: newunit16 on July 01, 2011, 02:50:48 PM
2-3* F or C isnt much of an issue.

i run my system in a non-climate-controlled portion of my house. gets to about 100*F in there. temps for my 4x gpu's are sporadic due to the strange config and my lack of fans having direct contact with the GPUs that are "sandwiched". 64-75-78-78 *C right now with ambient temp of 93*F. run 80% fanspeed.

at 100*F ambient, max card temp is 84*C. should be able to knock that down quite a bit when i toss a couple high CFM 120mm's. lowest is 70*C, its the card on the outside.


Title: Re: FYI: your basement might be warmer at night
Post by: IlbiStarz on July 02, 2011, 04:22:27 AM
What is this "bitcoin" you mentioned?


Title: Re: FYI: your basement might be warmer at night
Post by: rethaw on July 02, 2011, 04:37:37 AM
I wrote a script to shut off your miners at a given temperature.

http://forum.bitcoin.org/index.php?topic=25287.0 (http://forum.bitcoin.org/index.php?topic=25287.0)


Title: Re: FYI: your basement might be warmer at night
Post by: sniper_sniperson on July 02, 2011, 07:45:30 AM
What is this 'script' you mentioned?


Title: Re: FYI: your basement might be warmer at night
Post by: Tx2000 on July 02, 2011, 04:21:25 PM
I dont know about you but my basement is still a heck of a lot cooler as night than the upstairs.


Title: Re: FYI: your basement might be warmer at night
Post by: Transisto on July 02, 2011, 11:25:03 PM
Disturbing post.

You bathroom too can get warmer at night, especially when you have 5kw of hashing power in there.


Title: Re: FYI: your basement might be warmer at night
Post by: SlipperySlope on July 03, 2011, 03:53:55 AM
In Austin, Texas, many older homes have pier and beam construction which permits the easy access to water pipes in the crawl space under the house.

That's where I put three mining rigs that together draw 860 watts from the socket.  The ambient temperture is a steady 30 C, 86 F, despite recent highs over 100 F.

Here is a recent temperature reading from one of the rigs.  Its 3 hours after sunset.
Code:
user@linuxcoin02:~$ DISPLAY=:0.0 aticonfig --odgt --adapter=all

Adapter 0 - ATI Radeon HD 5700 Series
            Sensor 0: Temperature - 74.00 C

Adapter 1 - ATI Radeon HD 5700 Series
            Sensor 0: Temperature - 65.00 C




Title: Re: FYI: your basement might be warmer at night
Post by: BiggieJohn on July 03, 2011, 06:08:46 AM
Disturbing post.

You bathroom too can get warmer at night, especially when you have 5kw of hashing power in there.

ummm, 5kw of PC hardware

water

high moisture


ummmm, this sounds baaaadddd



Title: Re: FYI: your basement might be warmer at night
Post by: geek-trader on July 03, 2011, 06:09:10 AM
You and your fancy "basement" and "air conditioning" and the "upstairs".  I live in a tiny house that cost WAY too much money.  Of course, I am 2 blocks from the beach in San Diego...  8)

No air, it's only hot enough to need it about 2 weeks a year.  Instead, in the summer we break out the window fans, for daytime.  It always cools down to the mid 60's F at night, even when it's hot that day.  I've been turning my clock speed UP at night.

Since I have no basement, and my house is tiny, I do have to keep a lid on the fan noise.  You are never far from the computer if you are inside.  So 55% speed is about as high as I can go, and down to 40% at night when the window fans are off (they cover the computer fan noise during the day)