5 jumper settings, 6 clearing configuration, 7 changing the real-time clock (rtc) battery – Compaq DESKPRO 1000 User Manual

Page 74

Compaq Deskpro 1000 Series of Personal Computers

6-5

6.1.4

CPU to SRAM Data Transacting Mode Selection (SRAM)

The SRAM jumper allows you to select the CPU to SRAM data read/write mode.

Table 6-4

SRAM Pin Pairs

Mode

Pin Pair

Intel Burst (Default) for Intel Pentium CPUs, AMD-
K%, Cyrix, IBM*

1-2

Linear Burst

2-3

*Default setting.

6.1.5

Jumper Settings

The following table identifies the jumper settings for each processor frequency for the Pentium
with MMX Technology system boards:

CAUTION: Do not configure the system board to operate faster than the speed at which the processor is
rated. Doing this could result in unreliable operation or processor damage.

Table 6-5

Pentium with MMX Technology
System Board Jumper Settings

CPU

External

CPU Clock Rate

Speed

(MHz)

(CPU/CLK)

(MHz)

CLK1

CLK2

CLK3

FREQ1

FREQ2

FREQ3

Pentium with MMX Technology

233

1-2

200

1-2

2-3

1-2

166*

1-2

2-3

1-2

*Default setting

✎

Refer to Table 6-1 for a description of the CLK and FREQ jumpers.

6.1.6

Clearing Configuration

The computer's configuration (CMOS) may occasionally be corrupted. When it does, it is
necessary to clear the CMOS memory.

To clear and reset the configuration, run the CMOS Setup Utility described in Chapter 7,
“Utilities.”

6.1.7

Changing the Real-Time Clock (RTC) Battery

Refer to Chapter 5, “Removal and Replacement Procedures,” for complete instructions on
installing a replacement RTC battery.