Dell Precision 620 User Manual page 17

CAUTION: Before you complete following procedure, it is important for your personal safety and for protection of your
equipment that you make sure the AC power has been completely removed from the system board. Turn off and unplug the
computer from the electrical outlet and wait 15 to 30 seconds, see
the standby power light-emitting diode (LED) on the system board has turned off (see
When the SuprFreq Utility Program is Required
Run the SuperFreq utility program if your system's processor(s) core frequency is set incorrectly (see
Incorrect settings can occur when you do one of the following:
Upgrade your Dell system processor(s).
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Replace the system board.
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Lose the system CMOS nonvolatile random-access memory (NVRAM) settings because of a bad coin-cell system battery.
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Determine System Processing Speed
1. Enter System Setup (see
The System Setup screen displays the current setup and configuration information and optional settings for your system.
2. Read the system processor(s) speed listed below the system name at the top of the System Setup screen.
Determine Processor(s) Maximum Core Speed
See Safety First—For You and Your Computer
1. Unplug the computer system.
2. Remove the computer cover (see
3. Using a Phillips-head screwdriver, remove the four large thumbscrews in the processor retention bracket.
4. Press and release the release latch on the processor retention bracket and rotate the retention bracket to its raised position (see
5. Read the identification label on the top of the processor cartridge(s) to determine the maximum core speed.
For example: The number 800 in the identification label "80526KZ800256 2.8V" indicates an 800 megahertz (MHz) core speed (the 256
and 2.8V portion of the identification label represents 256 kilobytes [KB] of cache and a 2.8-volt processor cartridge, respectively) (see
Figure 14).
Figure 14. Processor Cartridge Label
Compare System Processor(s) Speed with Processor(s) Maximum Core Speed
Run the SuprFreq utility program if the system processor(s) speed does not match the processor(s) maximum core speed.
NOTE: No action is required if the system processor(s) speed matches the processor(s) maximum core speed.
Downloading the SuprFreq Utility Program
1. Go to http://support.dell.com.
If you have not created a profile for your specific system, do so now by creating a system profile in step 1. Enter the system service tag or the
express service code, or select the Dell system model number from the dropdown menu. Click Go! in step 3 to proceed to your system's
support page.
NOTE: The file format as listed in the support page consists of diskette images that must be downloaded to your hard-disk drive,
and then extracted onto diskettes. The installation is then done from the diskettes.
2. Click Downloads on the menu bar at the top of the page.
Enter the file name sprfrq2.exe in the Search For Files by Exact File Name option, and click Retrieve.
3. Download the SuprFreq utility application program to your hard-disk drive.
4. Insert a formatted diskette into drive a:\.
Entering System Setup).
before completing the following steps.
Removing the Computer
Safety First—For You and Your
Cover).
Computer, and make sure
Figure 1 for the location of the LED).
Determine System Processing Speed).
Figure 12).