FINAL TRIM SIZE : 7.0 in x 8.5 in
1
Graphics
Supported graphics upgrades for the Mo dels 747i/50 and 747i/100 are as
follows:
HP A2269A: Adds dual CRX-accelerated color graphic b oard, including
SGC CRX card, and two 19-in. 1280 X 1024 color monitors.
HP 98768A: CRX-accelerated color graphics and a 19-in. 1280 X 1024 color
monitor.
HP A2262A: Adds dual CRX-accelerated color graphic b oard, with no
monitor.
HP A2270A: CRX-24 color graphics and a 19-in. 1280 X 1024 color monitor.
HP A1439A: CRX-24 color graphics, with no monitor.
SGC graphics option operate concurrently with on-b oard graphics. The
Mo dels 747i/50 and 747i/100 function as single workstations, accepting user
input from single keyboards, but delivering graphics output to as manyas
three monitors.
The Mo dels 747i/50 and 747i/100 have only one SGC interface. Upgrade
pro ducts may not b e used concurrently.
The 745i/100 or 747i/100 systems and upgrades are congured for a 70
Hz refresh rate monitor. The so cket-installed 75.0000 Mhz crystal for
the fast refresh rate display is identied as Part Numb er 18130940. The
corresp onding STI ROM is identied as Part Number 18185347.
Switches for Changing Graphics Formats
Note that both on-board graphics and CRX upgrades ma
y b e used
concurrently in the Mo dels 747i/50 and 747i/99. On the system b oard, four
switches near the edge are used to congure the graphics circuit for dierent
situations.
These switches are appropriately set for your monitor as shipped
from the factory.
However, if you should choose to upgrade your system with
a dierent HP monitor, the following information will help in conguring the
system to communicate appropriate resolution and scan-rate.
1-6 Product Description DRAFT
2/5/97 11:31
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