Re: Mersenne: electrical energy needed to run a LL-Test?

2002-04-28 Thread Gareth Randall
For Linux users wondering how to control the monitor auto suspend or auto power down, try: xset dpms force standby or xset dpms force suspend (See man page or --help for xset for more information and options.) If you set this as a keyboard shortcut you can actually go into power saving

Re: Re: Mersenne: electrical energy needed to run a LL-Test?

2002-04-28 Thread Lars Fricke
Hi! [15W for my PIII933 Idle/Prime95] Otherwise the increase in power consumption could be due to the FPU being active. Based on my experience with CPU core temperature monitors on PIII systems, I rather doubt that a PIII-933 FPU consumes as much as 15W above the normal load. I would think

Re: RE: Mersenne: electrical energy needed to run a LL-Test?

2002-04-28 Thread Lars Fricke
My moral is: don't over look the benefits of the waste heat if you live in a climate where you have to spend energy to keep warm. If you live somewhere which requires the expenditure of energy to keep cool, the balance may lie elsewhere. LoL - thats really a point worth mentioning. That

Re: Mersenne: electrical energy needed to run a LL-Test?

2002-04-28 Thread Brian J. Beesley
On Saturday 27 April 2002 22:11, you wrote: Better still, switch the monitor off when you're not using it :-) Sure. At least get it to switch to standby mode when not required. The problem with switching the monitor off with its own power switch is that you may be asking for problems, as

Re: Mersenne: electrical energy needed to run a LL-Test?

2002-04-28 Thread Brian J. Beesley
On Saturday 27 April 2002 21:26, Paul Leyland wrote: [... snip ...] They are still doing sterling service as fan heaters to keep my study warm (it's not easy living at a latitude of 52 degrees north ;-) and happen to factor integers by ECM while doing so.My 21-inch Hitachi monitor cost

Re: Mersenne: electrical energy needed to run a LL-Test?

2002-04-27 Thread Brian J. Beesley
On Friday 26 April 2002 09:52, Lars Fricke wrote: Hello! I was just curious, how much electrical energy my system here needs to run a LL-Test. Even if you don't let the system run if it is not used otherwise, it seems to be quite a lot. On my P-III 933 (WIN XP), Prime95 needs about 15W

RE: Mersenne: electrical energy needed to run a LL-Test?

2002-04-27 Thread Paul Leyland
From: Brian J. Beesley [mailto:[EMAIL PROTECTED]] ... To get a real feel for this value for money question, surely you have to factor in the system depreciation cost i.e. the difference between the purchase and residual values plus the total cost of the power consumed over the working

Re: Mersenne: electrical energy needed to run a LL-Test?

2002-04-27 Thread Robin Stevens
On Sat, Apr 27, 2002 at 05:06:40PM +, Brian J. Beesley wrote: In terms of P90 CPU hours per kWh, we've got to be looking at P4 Northwood based systems - equipped with minimum peripherals. The main power saving that most people can make is to use an LCD monitor instead of a CRT. Better

Mersenne: electrical energy needed to run a LL-Test?

2002-04-26 Thread Lars Fricke
Hello! I was just curious, how much electrical energy my system here needs to run a LL-Test. Even if you don't let the system run if it is not used otherwise, it seems to be quite a lot. On my P-III 933 (WIN XP), Prime95 needs about 15W power (measured with an energy-monitor). That adds up