Paradyne 6800 manual Switching off the Cache on 486DX, Proteon p1392 Card

Preparing the Processors

494-14512

Figure 2-28. Proteon p1392 Card

Switching off the Cache on 486DX

If the 486DX full-feature workstation has not been configured at the factory with its cache switched off, you may notice the following symptoms:

•The movement of any windows appears to be jittery or choppy when dragged by the mouse.

•When running NMS R3.1, at initial start-up the screen comes up but the keyboard is locked and unusable.

The 486DX cache may be switched off using the BIOS Setup Utility which is resident in the workstation's processor firmware. Starting with the 486DX powered off, perform the following steps:

1.Power on the workstation's processor and immediately press Ctrl-Alt-Esc.

2.The BIOS Setup Utility window/menu will appear. Using the ↓↑ keys, select System Configuration Setup and

PRESS: Enter

3.Page 1 of the Utility will appear; to get to Page 2 PRESS: Page Down

4.Page 2 will appear. Using the ↓ key, move the cursor until it reaches the line labeled System Cache. Using → will cause the field value to toggle between on and off. Set the value to off.

PRESS: Esc

5.A confirmation box will appear. To save the CMOS data, PRESS: Enter

6800-A2-GN22-30 January 1997 2-53