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Computer sleep mode

On Mon, 25 Aug 2008 00:26:17 -0400, "Earl of Warwich, Duke of
Cornwall, Marquies of Anglesea, Sir Reginald P. Smithers III Esq. LLC,
STP. " wrote:

Eisboch wrote:
"hk" wrote in message
. ..
Eisboch wrote:
The reason I started doing this is, as you pointed out, over time you
build up dust and the cooling becomes less effective.
This laptop is over 6 years old and I used to just leave it on 24/7. I
started shutting it down because I was concerned the cooling probably
wasn't as efficient as when it was new. But, so far, no problems.

How much dust ingestion are you going to get on a decently built laptop?

After 6 years, quite a bit as I found. I didn't take it completely apart,
but enough so to expose the CPU, heatsink, fans, etc.
This laptop has 4 miniature fans. I was surprised at how much dust had
accumulated.

Don't try to being facts into this discussion. Did I tell you about the
time I was at the Apple store. The tech was pulling apart a computer on
the retail floor, and it had next to no dust. Laptops are not used in
dusty environments, so they don't ingest as much dust as regular
computers. I think it has something to do with Newton's 3rd law.

Nope - Murphy's 21st Law of Computer Operations:

The only thing worse than an end-user without a clue is an end-user
who has a clue - usually the wrong one.

Computer sleep mode

On Mon, 25 Aug 2008 05:12:18 -0500, Vic Smith
wrote:

Besides, it ****es me off to buy canned air. It just does

Buy an air compresor.

Computer sleep mode

On Mon, 25 Aug 2008 10:24:55 GMT, Short Wave Sportfishing
wrote:

On Mon, 25 Aug 2008 05:12:18 -0500, Vic Smith
wrote:

Besides, it ****es me off to buy canned air. It just does

Buy an air compresor.

Will do. For my jackhammers. I'll still use vacuum
for the PC.
Don't want to blow dust on the doilies.

--Vic

Computer sleep mode

D.Duck wrote:
"hk" wrote in message
...
D.Duck wrote:
"hk" wrote in message
. ..
Eisboch wrote:
"D.Duck" wrote in message
...
"Eisboch" wrote in message
...
Thought I might offer this, even though I don't understand it, in
case anyone else has a similar issue.

If you use hibernate mode the machine completely powers itself time
after a user selected period of time. This minimizes dust ingestion.
The recovery time on our laptop is less than 15 seconds after touching
the power button.

HTH.

I experimented with both "sleep" and "hibernate" modes. Frankly, as
far as power usage is concerned, I don't see any difference.
In both, the display, hard drive and cooling fans stop operating.

The reason I started doing this is, as you pointed out, over time you
build up dust and the cooling becomes less effective.
This laptop is over 6 years old and I used to just leave it on 24/7.
I started shutting it down because I was concerned the cooling probably
wasn't as efficient as when it was new. But, so far, no problems.

Eisboch
How much dust ingestion are you going to get on a decently built laptop?

Now, a desktop, especially a homebrew desktop, is different. I just open
up the panels on mine and use canned air to blow the dust out every
couple of months.
Every laptop I've looked at have a grill over the area where the fan in
sucking in fresh air. What is decently built that is different from that
design?
I didn't say "no" dust would get in, I implied it would be minimal. I was
at the Apple store a few weeks ago and watched a tech replace a fan in a
Macbook pro. He said the laptop was about a year old. When he removed all
the screws and popped it open, I was amazed by how clean it was inside. No
visible dust, not even on the fan.

Do you have no idea of the number of ON hours or the environment the machine
was operating in? I doubt if Apple uses any *magic* technique to keep their
laptops from ingesting dust.

Quack, quack, quack

Computer sleep mode

On Mon, 25 Aug 2008 05:12:18 -0500, Vic Smith
wrote:

On Mon, 25 Aug 2008 04:48:28 -0400, "D.Duck" wrote:

wrote in message
net...
On Sun, 24 Aug 2008 21:03:20 -0400, Eisboch wrote:

I experimented with both "sleep" and "hibernate" modes. Frankly, as
far as power usage is concerned, I don't see any difference. In both,
the display, hard drive and cooling fans stop operating.

There is a little more power being used in sleep mode as it needs to keep
power going to memory. Eventually, the batteries will drain, and it will
switch to hibernate mode. Not a concern for a desktop, but it is of
minor concern for a laptop.

Personally, I keep my desktops running 24/7, but not my laptops. I don't
really think they were built with the necessary cooling. I did manage to
fry an old Thinkpad. A capacitor melted. It might not have been
inadequate cooling, as there were a bunch of defective capacitors out
there when the Thinkpad was made.

They RAM is powered during *hibernate* also.

I think hibernate writes RAM to disk then restores on awakening.
Also mapped the video to disk.
IBM pioneered this on the PS/1, which I had.
Called it "Rapid Resume."
Pretty slick. You could have a few windows open - think that about
Win 3.1 time - power off, and everything would write to disk.
It would restore as it was when powered back on, and faster too, since
it was writing from contiguous disk space to RAM and video instead
of disk seeking for all the app components.
The Rapid Resume software was dependent on proprietary IBM internals
however, and didn't last long as PC's were rapidly moving to multi-mfg
components.
My PS/1 was the Consultant, a full tower, and except for my original
IBM PC (8088) I've always built the big towers.
You should see the case on this sucker. Outside of a server-on-wheels
case, this is the biggest I could find.
Had it shipped on a semi-truck, then transferred to a smaller truck to
get to my house. Paid UPS for that job.
Don't really understand those laptops, though I carted a laptop from
work for years. Hated using that thing unless it was hooked to the
workstation on my work desk, then I didn't notice it.
It was a brand new IBM and lasted only a couple years before the HD
crashed and I had to get "redeployed." Major PITA.
I guess for work or cruising a laptop is necessary, but when I go on
vacation for up to 3 weeks I manage to go cold turkey on computers.
BTW, I use a set of soft bristled brushes and a jury rigged small
diameter tube taped to a vacuum nozzle for cleaning computer
internals. The flex hose used for blowing up air mattresses works
well. All the canned air I've bought is too wet.
Besides, it ****es me off to buy canned air. It just does.

--Vic

I hope you are aware of the EXTREMELY high voltages generated by the
moving air at the tip of that vacuum nozzle. For vacuuming inside
electronics you need a vacuum designed to dissipate that static charge
buildup. Many "toner vac's" made for cleaning the insides of laser
printers are okay. Some are not. Household vac's and shop vac's are
definitely NOT okay.

Computer sleep mode

Eisboch wrote:
I cleaned what I could get to without taking the whole computer apart.
Someone here thoughtfully gave me a link to HP's procedure for doing so, I
read it and chickened out. I am real good at taking things apart. The
track record for putting it back together isn't as good.

Eisboch

Same here. I could probably build a new one of almost everything I owned
with all the leftover parts.

Computer sleep mode

Short Wave Sportfishing wrote:
Nope - Murphy's 21st Law of Computer Operations:

The only thing worse than an end-user without a clue is an end-user
who has a clue - usually the wrong one.

I propose we amend this to create a 21st Law, Part A:

"The only thing worse that an end-user without a clue is an end-user who
has a screwdriver and the ambition to use it."

Computer sleep mode

On Aug 25, 10:27*am, DownTime wrote:
Short Wave Sportfishing wrote:
Nope - Murphy's 21st Law of Computer Operations:

The only thing worse than an end-user without a clue is an end-user
who has a clue - usually the wrong one.

I propose we amend this to create a 21st Law, Part A:

"The only thing worse that an end-user without a clue is an end-user who
has a screwdriver and the ambition to use it."

That would be the engineer, right?