Is it possible for a computer running xp to enter into a mode where all fans are turned off, the graphics card is powered down, and the only components with power are the hdd and cpu. And then to have it run just one low cpu usage program such as a download for firefox. Essentially, there is a download that I want to run that will take forever, so I want to have my computer on but silent at night. Is this possible? When running I would not need the graphics card or monitors on.
While I have a feeling this would be possible if you created your own program, there are some problems...
a) You need some fans running, because the HDD and CPU do create heat. b) How do you plan on restoring the PC to it's normal state?
I'm not really an expert though, so probably best to wait for someone else to reply.
You could unplug your fans, but I wouldn't reccomend it, because of the heat buildup could cause damage to components. And you could plug your monitor into the onboard video (ifyou have it, most motherboards now don't) and take out your video card (after you shut down, before you start the dl of course).
You would need a third party program to do this.
If you have a cpu capable of running in "Cool & Quiet" mode, that can help a bit with noise from that fan. Your video card, which is essentially idle when not in use for gaming, will not draw much power, and you may be able to slow down it's fan speed with the video control panel. It's possible that cleaning your case fans can help with noise.
You certainly don't want to have all fans turned off though. Your pc is constantly generating heat, even when doing mundane tasks like a download.
This won't help right now, but if your pc sounds like a jet engine, you may want to consider replacing some fans or the case sometime in the future. You might even try doing some sound dampening of your pc componenets. There are 8 fans going at all times in my rig, and honestly, it's barely noticeable.
My computer is pretty quiet, just not able to sleep quiet. I could always use a comp from a different room, I think Ill have to do that.