HP Dc7600 HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 125

Integrated Graphics Subsystem 6.4 Upgrading Graphics The PCI-E slot of SFF, ST, MT, and CMT systems can accept a normal-layout Advanced Digital Display 2 (ADD2) or a graphics controller card. The PCI-E slot of the USDT system accepts only a reverse-layout Advanced Digital Display 2 (ADD2) card. All systems can be upgraded by installing a PCI card in the PCI 2.3 slot (assuming no riser cards are installed ). Depending on accessory, upgrading through the PCI Express x16 slot can provide digital monitor support and/or dual-monitor support allowing display-cloning or extended desktop functionality. Software drivers may need to be downloaded for specific cards. ✎ Two SDVO channels are provided by the IGC for supporting two digital displays. Existing option cards and drivers support one CRT and digital display. Dual digital display support may be possible with future cards and drivers. The upgrade procedure is as follows: 1. Shut down the system through the operating system. 2. Unplug the power cord from the rear of the system unit. 3. Remove the chassis cover. 4. Install the graphics card into the PCI Express x16 graphics or PCI 2.3 slot. 5. Replace the chassis cover. 6. Reconnect the power cord to the system unit. 7. Power up the system unit. The BIOS will detect the presence of the PCI card and disable the IGC of the 82945G GMCH. ✎ If a PCI 2.3 graphics card is installed, the IGC can be re-enabled through the Setup Utility (F10) but may require driver installation. If a PCI-E graphics controller card is installed, the IGC cannot be enabled. Technical Reference Guide www.hp.com 6-5