Installing Or Replacing Main Memory Modules; Installing Video Memory And Other Video Modules - HP Vectra VT6 Supplementary Manual

Switches 4 and 5 set the frequency of the Local bus. Switches 6, 7, and 8 set
the clock multiplier for the processor. The relationship of the switch settings
to Local bus and processor frequencies is as follows:
Switch Switch Local Bus
4 5 Frequency
On Off 60 MHz
Off Off 66 MHz
On Off 60 MHz
Off Off 66 MHz

Installing or Replacing Main Memory Modules

The HP Vectra XU 6/xxx PC and HP Vectra VT 6/xxx PC are supplied with
16 MB of main memory as standard. There are 8 double inter-line memory
module (DIMM) sockets on the system board (see the diagram on page 18).
These sockets are grouped into four banks, labeled A to D, with two sockets
in each bank. The diagram on page 18 also shows the retaining clips on
either side of each DIMM.
The banks can be filled in any order, up to a maximum capacity of 256 MB,
but always in pairs of DIMMs of the same capacity and same type (ECC or
non-ECC). Only the HP Vectra XU 6/xxx PC supports ECC (error
correcting code) memory, but even this will be disabled if any non-ECC
memory is installed. Conversely, the HP Vectra VT 6/xxx PC will accept
16 MB and 32 MB ECC modules, but will treat them as non-ECC memory.
While removing DIMMs that have already been installed, they are liable to
fall into the computer as they pop out of the sockets. Care must be taken to
prevent this happening.

Installing Video Memory and Other Video Modules

The HP Vectra XU 6/xxx PC and HP Vectra VT 6/xxx PC are supplied with
a Matrox MGA Millennium video board in the top accessory slot (slot 6,
PCI1). It is supplied with 2 MB of video memory (WRAM), but can be
upgraded to 4 MB with a D3557A upgrade module, or to 8 MB with an MGA-
MIL/MOD6 upgrade module (ordered from Matrox). This socket can also be
used for the installation of the Matrox MGA Media XL upgrade module (also
Switch Switch Switch
6 7 8
On Off Off
On Off Off
Off On Off
Off On Off
2 PC Hardware Structure
Installing or Replacing Accessories
Processor :
Local Bus Processor
Frequency Frequency
Ratio
2.5 : 1 150 MHz
2.5 : 1 166 MHz
3 : 1 180 MHz
3 : 1 200 MHz
21