'Pop`' wrote:
| With all due respect Phil, it is true and often "fixes" a stubborn problem
| when Restart is used to no avail. Nearly everyone has experienced it at
| one
| time or another though they may not recognize it. As I said earlier, there
| are other things at work; some are listed below:
|
| Restart:
| --POST isn't run completely; but it is after a shut down.
| --Power supply is not shut down; but it is actually powered down after a
| shut down
| --is known as a "soft" or "warm" boot. Shutdown is a "cold" boot.
| --does not "reset" a hardware hangup since power is never completely
| removed. A Cold boot however, or Power-off, will release the hangup most
| times. Usually ten seconds "off" is plenty of time, but most people
| recommend longer periods just to cover the extreme cases where maybe 11
| seconds are needed. Usually, only a second or less are required,
| depending
| on some other things, but up to ten is the generally recognized technical
| solution for time "off".
| -- does not guarantee the "reset" line will work on all chips if they are
| hung (tri-stated, capacitively locked, whatever; lots of possibilities.).
_____
Your explanation of 'Restart', "POST', memory, and machine state is just
wrong.
'Restart' does indeed reboot, completely.
The machine state is reset.
The clocks stop.
Memory refresh stops (if a bit is not refreshed within a window of ~ 64
milliseconds it is no longer valid).
Memory is reset.
AND no matter what is in memory, if the operating system or BIOS does not
know about it, it isn't there.
Gone are the days when memory had to be set to all zeros.
There may be any number of reasons for you think you observe, but certainly
not the reasons you state.
Phil Weldon
| Phil,
|
| With all due respect Phil, it is true and often "fixes" a stubborn problem
| when Restart is used to no avail. Nearly everyone has experienced it at
one
| time or another though they may not recognize it. As I said earlier, there
| are other things at work; some are listed below:
|
| Restart:
| --POST isn't run completely; but it is after a shut down.
| --Power supply is not shut down; but it is actually powered down after a
| shut down
| --is known as a "soft" or "warm" boot. Shutdown is a "cold" boot.
| --does not "reset" a hardware hangup since power is never completely
| removed. A Cold boot however, or Power-off, will release the hangup most
| times. Usually ten seconds "off" is plenty of time, but most people
| recommend longer periods just to cover the extreme cases where maybe 11
| seconds are needed. Usually, only a second or less are required,
depending
| on some other things, but up to ten is the generally recognized technical
| solution for time "off".
| -- does not guarantee the "reset" line will work on all chips if they are
| hung (tri-stated, capacitively locked, whatever; lots of possibilities.).
|
| HTH
| Pop`
|
|
|
|
|
|
| Phil Weldon wrote:
| > 'Pop`' wrote, in part:
| >> However, in order to be certain that RAM get cleared
| >> out completely, so that any leftovers are sure to be gone, it's often
| >> necessary to shut down for twenty seconds or so so that power is
| >> removed form RAM for that long. A restart doesn't allow that.
| > _____
| >
| > Not true.
| > The RAM in personal computers is volatile; any data dissipates in a
| > fraction of a second when power is removed.
| > Restart functions exactly the same as a Shutdown followed by a Start.
| > Forty years ago, this was not true, but there were no personal
| > computers then either.
| >
| > Phil Weldon
| >
| >
| > | >> WolfgangJ wrote:
| >>> Hi,
| >>>
| >>> in case of trouble it is sometimes helpful to restart Windows.
| >>> What is the difference between "shutdown" and "restart" in that
| >>> respect ?
| >>> Wolfgang
| >>> _____________________________________
| >>
| >> Well, a lot of people will say there's no difference and in most,
| >> not all cases, that's true. However, in order to be certain that
| >> RAM get cleared out completely, so that any leftovers are sure to be
| >> gone, it's often necessary to shut down for twenty seconds or so so
| >> that power is removed form RAM for that long. A restart doesn't
| >> allow that.
| >>
| >> There's more to it, but that's the most basic difference I think.
| >>
| >> Pop`
|
|
|
|