>
>CUDA button is very small, 1/4" square silver with black
>center to push and is located first (l to r) near the top
>of the first PCI socket and just left of it. It is marked
>"RESET" as in:
>----------------------------top of board.
Snip

Not sure where the name CUDA came from, but the PMU, or Power Management
Unit, is a microcontroller chip that controls all power functions for the
computer. The PMU is a computer within a computer. It has memory, software,
firmware, I/O, two crystals, and a CPU. Its function is to:
1  Tell the computer to turn on, turn off, sleep, wake, idle, etc.
2  Manage system resets from various commands.
3  Maintain Parameter RAM (PRAM)
4  Manage the real-time clock

Many system problems can be resolved by resetting the PMU chip. Whenever you
have a unit that fails to power up, follow this procedure before replacing
any modules:
1. Disconnect the power cord and check the battery in the battery holder.
The battery should read 3.3 to 3.7 volts on a G4. If the battery is bad,
replace the battery, wait ten seconds, and then reset the PMU. 
2. Press the PMU reset switch ONCE on the logic board. Do NOT press the PMU
reset switch a second time because it could crash the PMU chip.

Kathi



-- 
G-List is sponsored by <http://lowendmac.com/> and...

 Small Dog Electronics    http://www.smalldog.com | Refurbished Drives |
 -- We have Apple Refurbished Monitors in stock!  |  & CDRWs on Sale!  |

      Support Low End Mac <http://lowendmac.com/lists/support.html>

G-List list info:       <http://lowendmac.com/lists/g-list.shtml>
  --> AOL users, remove "mailto:";
Send list messages to:  <mailto:g-list@mail.maclaunch.com>
To unsubscribe, email:  <mailto:[EMAIL PROTECTED]>
For digest mode, email: <mailto:[EMAIL PROTECTED]>
Subscription questions: <mailto:[EMAIL PROTECTED]>
Archive: <http://www.mail-archive.com/g-list%40mail.maclaunch.com/>

iPod Accessories for Less
at 1-800-iPOD.COM
Fast Delivery, Low Price, Good Deal
www.1800ipod.com

Reply via email to