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Video Fan Runs Before Standby
I'm not 100% sure I know what I'm talking about in this question, so
please bear with me. I have a Studio XPS 8100 desktop running Win7 Pro x64. I recently started to let my computer go to "hybrid" sleep" at night instead of powering off as I have always done. As I understand it, hybrid sleep means that the computer initially goes to sleep (S3, aka standby)and then, after a user-selected period of time, the computer goes to hibernation (S4). I have noticed that when my computer goes to sleep (S3), just before the hard drives power off, the fan on my video card revs up for about 4 seconds. The fan also revs up when my computer comes out of sleep. (So far, my computer has not 'slept' long enough to go into hibernation.) Is it normal for the video card fan to rev up like this? Why does this happen? Daddy |
#2
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Video Fan Runs Before Standby
On Dec 29, 9:16*am, Daddy wrote:
I'm not 100% sure I know what I'm talking about in this question, so please bear with me. I have a Studio XPS 8100 desktop running Win7 Pro x64. I recently started to let my computer go to "hybrid" sleep" at night instead of powering off as I have always done. As I understand it, hybrid sleep means that the computer initially goes to sleep (S3, aka standby)and then, after a user-selected period of time, the computer goes to hibernation (S4). I have noticed that when my computer goes to sleep (S3), just before the hard drives power off, the fan on my video card revs up for about 4 seconds. The fan also revs up when my computer comes out of sleep. (So far, my computer has not 'slept' long enough to go into hibernation.) Is it normal for the video card fan to rev up like this? Why does this happen? Daddy My guess (my laptop does this) since programs are being closed (temp.sensing) may be a safety precaution. |
#3
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Video Fan Runs Before Standby
That's not how hybrid sleep works. The computer sleeps and ALSO saves a
copy of memory to the Hard Drive the same way that hibernate does. This allows for the faster start up from sleep than hibernate but protects against data loss or other problems if power should be lost while the computer is sleeping. In other words, it will not go from sleep to hibernate unless there is a power loss. ( See http://windows.microsoft.com/en-US/w...sked-questions if interested) The video fan activity is a function of thermostatic speed control being temporarily off while the device driver is inactive but the device powered. In other words, it probably defaults to full speed unless temp is being actively monitored and controlled. -- "Daddy" wrote in message ... I'm not 100% sure I know what I'm talking about in this question, so please bear with me. I have a Studio XPS 8100 desktop running Win7 Pro x64. I recently started to let my computer go to "hybrid" sleep" at night instead of powering off as I have always done. As I understand it, hybrid sleep means that the computer initially goes to sleep (S3, aka standby)and then, after a user-selected period of time, the computer goes to hibernation (S4). I have noticed that when my computer goes to sleep (S3), just before the hard drives power off, the fan on my video card revs up for about 4 seconds. The fan also revs up when my computer comes out of sleep. (So far, my computer has not 'slept' long enough to go into hibernation.) Is it normal for the video card fan to rev up like this? Why does this happen? Daddy |
#4
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Video Fan Runs Before Standby
On 12/29/2010 10:16 AM, Daddy wrote:
I'm not 100% sure I know what I'm talking about in this question, so please bear with me. I have a Studio XPS 8100 desktop running Win7 Pro x64. I recently started to let my computer go to "hybrid" sleep" at night instead of powering off as I have always done. As I understand it, hybrid sleep means that the computer initially goes to sleep (S3, aka standby)and then, after a user-selected period of time, the computer goes to hibernation (S4). I have noticed that when my computer goes to sleep (S3), just before the hard drives power off, the fan on my video card revs up for about 4 seconds. The fan also revs up when my computer comes out of sleep. (So far, my computer has not 'slept' long enough to go into hibernation.) Is it normal for the video card fan to rev up like this? Why does this happen? Daddy There is no "normal", but the video card fan is probably controlled by the motherboard BIOS, which takes necessary safeguards to reduce the probability of the video card overheating. Not a bad idea, because of all the failures of video chips over the years. Of course, you have to do your part too, by making sure that not too much dust and dirt accumulates on the heat sinks and fans inside the computer... Ben Myers |
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