Wednesday, August 31, 2011

Plugged in, not charging Windows 7 solution

Plugged in, not charging Windows 7 solution

I recently had the popular problem of Windows 7 battery manager malfunctioning and not charging my battery when plugged in.  The battery was fine, the power supply was fine, and the motherboard was fine (I have enough laptops with the same specs in the Headspring office, and I was able to swap out parts to isolate the problem).

I also searched for this problem online, and many folks are having this problem with all makes of laptop computers.  I found the steps that solved my problem here on the TechNet forums.

There are multiple solutions proposed, and here are the steps that fixed it for me:

  1. Disconnect AC
  2. Shutdown
  3. Remove battery
  4. Connect AC
  5. Startup
  6. Under the Batteries category, right-click all of the Microsoft ACPI Compliant Control Method Batterylistings, and select Uninstall (it's ok if you only have 1).
  7. Shutdown
  8. Disconnect AC
  9. Insert battery
  10. Connect AC
  11. Startup

Please comment if this fixes your problem so that others can solve their problem sooner.

source:

http://jeffreypalermo.com

Sunday, August 28, 2011

Powers of ten and unit prefixes


Powers of ten and unit prefixes

Power Prefixes

Prefix

Symbol

Factor

Notes

yotta

Y

1024

zetta

Z

1021

exa

E

1018

peta

P

1015

tera

T

1012

giga

G

109

mega

M

106

kilo

k

103

hecto

h

102

deka

da

101

deci

d

10-1

centi

c

10-2

milli

m

10-3

micro

µ

10-6

Use "micro" or "mu" in our conversion calculators.

nano

n

10-9

pico

p

10-12

femto

f

10-15

atto

a

10-18

zepto

z

10-21

yocto

y

10-24