Using the Clear-NVR jumper

Use the clear-NVR jumper to return the enviroment variables to their default settings.

This procedure is also described with a figure on pages 2-4 and 2-5 in the "Personal DECstation 5000 Hardware Maintenance Guide" and works on the 5000/xx, 5000/1xx and 5000/2xx machines.

• First locate the two-pin NVR connector. This connector is in a different place on each model. Looking from the front of the machine:
  • 5000/xx: It's located to the left of the power connector and marked "nvr". 72 dpi figure (6435 bytes), 300 dpi figure (40432 bytes)
  • 5000/1xx: It's located to the right of the power connector and marked "nvr".
  • 5000/200: It's located at just in front of the left end of the left-most TurboChannel connector, next to a larger four-pin connector. It is not marked.
  • 5000/2[46]0: It's located at the edge of the motherboard near the back of the middle power supply fan, next to a larger four-pin connector. It is not marked.
• Slide a jumper over the NVR connector. Jumpers used on older SCSI disks will do the job nicely.
• Turn on the system power and wait for the console prompt to appear.
• When the console prompt appears, turn off the system power.
• Remove the jumper from the NVR connector.