| Note |
| Installing a video expansion card will automatically disable onboard video for this motherboard. |
| Warning | Only authorized service personnel should upgrade the system. Anyone who wants to upgrade the system herself/himself should know about the dangers of ESD (Electro-Static Discharge) and the necessary precautions. Unknowingly zapping the components of the computer will void the warranty. |
| Specifications |
| The PB570/80/90/620/630/650 can be upgraded to 2MB video memory using two 256Kx16-70ns SOJ DRAM chips. The following brands and part numbers are recommended. |
| Manufacturer | Part No(s) |
| Fujitsu | MB814260-70J-ER |
| Hitachi | HM514260AJ-7T |
| Micron Technology | MT4C16257DJ-7TR |
| Mitsubishi | M5M44260-AJ-7-T10 |
| NEC | UPD42S42560LE-70ITR or UPD42460LE-70ITR |
| Samsung | KM416C256AJ-7T or KM416C256BJ-7T |
| Toshiba | TC514260BJ-7(EL) |
| Location |
| The video memory upgrade is inserted in sockets U4H1 and U5FONT CLASS=H2. Pin 1 is at the front right corner of the socket. To install the chip, insert it into the socket and push it on the chip until it snaps into place. |
| Specifications | Part | Equivalent PB Part |
| 2 - 256KB x 16, 70ns SOJ DRAM | TC514260BJ-70 | 080378 |