Discussion in 'World Community Grid (WCG)' started by Chicken Patty, Feb 20, 2009.
You may be my age but can you dig 8ft down and put the power and tell lines back.
If I dug 8 ft down I'm afraid someone will put the dirt back before I got back out
So I'm going to give it a whirl overnight at these settings. See if she likes it. If so, I'll try for 4.5 Ghz tomorrow night.
Impressive...how did your CPU get down to 16C?
Ok guys breaker kicked off twice more yesterday so now crunchers are off until I fix the situation. My house was built in 1952 and back then not many people had electronics in their houses so there is only 4 120V circuits in the house along with 3 240V Circuits. I am going to have to run a new line and put all crunchers on it I am think which may take me until this weekend.
Better to have them off for a bit now than to have repeated issues later
Are you going to relocate them to their own room?
Nope just their own circuit.
I have air conditioning in my bedroom so at idle the cores drop to 16C and when I woke up this morning under full load they were all sitting happy at 40C
So I've set off to work for 12 hours today leaving it at those settings. Should put out some impressive numbers. I'll be doing 12 hours tomorrow as well so both crunchers will be going 48hours straight.
Do you people think I can get any significant decrease in temperature in my laptop by decreasing it's NB voltage?
No, but try. At worst you will BSOD it. Since your CPU does not have turbo the best option is to take the back panel off and put a fan there. The resulting lower temperature will not increase speed and hence stay low. My i2720QM which will step up if temperature is "low" now run at 73 C with a big fan on (2,2 MHz up to 2,6 MHz)
My laptop is still in active service, so can just strip it for efficiency.
Do you have any other ideas for cooler operation?
Any idea how much that'll run you Brandon?
Some wire and a outlet, may like 20$ I think. Its just the time to get in the roof and run it down the wall is the issue.
How many amps is the breaker on the 120v circuit your crunchers are on? If the wire size/wire gauge is OK you can upsize that one breaker 5-10amps without an issue (i.e. from 20-30 amps on the breaker)
Probably have it done in 10 minutes for under $40
Not too bad then, except for the part where you have to get on the roof. But not too bad, just curious. I may need to do this one day.
Running 20 amp breaker BUT I don't know if it would trust a 30 amp on this two wire setup. you gotta remember the wireing is from 1950's
I am going to do the same thing. We are planning on building a 2 room addition on this fall when it cools down. I am going to take the smaller bedroom as my Computer room/crunching lab. I am going to run 2 extra lines in there for the computers and a window a/c. Screw heat I am going to shut the vent off. The crunchers should be able to heat the room up nicely in the winter.
It's all about the gauge! If the gauge of the wire in the wall can carry a 30amp circuit you are all set.
Remember copper was cheaper in the 50's so there is a real good chance that the wire in the walls is fine...
I don't know about you'll but the wiring in my place sucks.
I have the same problem here. Someone spiced the entertainment area in the living room off our bedroom circuit. So I'm leery of building another cruncher. But now that I have a C2Q chip, case, PSU, and HDD just sitting around.....
Actually this goes for you and for brandon...check the breakers you're having issues with. If the switch itself has a bit too much wiggle in it or if you see anything resembling soot in or around it then the breaker is bad or just weak. A new breaker of the same size and style may restore the circuit back to "normal"
Check the math too (Power=current x voltage or current=power/voltage) meaning a 20amp circuit at 120volts can carry 2,400 watts (I use 80% as a safety factor so 2400x0.8= 1,920 watts)
That's true, but I would be careful if the wiring is 60 years old as the insulation (especially cloth insulation) could be in bad shape.
The general rule of thumb for wire gauges is 14 ga. is used on 15 amp circuit breaker; 12 ga. is used on 20 amp circuit breaker; 10 ga. is used on 30 amp circuit breaker.
That is correct! I wouldn't trust 50's wiring with a 30 amp breaker. 20 amp max as it is at best 12 gauge wire and most likely it is 14 gauge.
I haven't had any problems with my place, but looking at some switches the other day that I had to replace, wiring looks like shit.
A teaser of my new build coming for you guys within 12 hours
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