HP Workstation x4000 hp workstation x4000 - Technical Reference manual - Windo - Page 36

CAUTION System Board Expansion Card Slots Accelerated Graphics Port (AGP) Slot The 1.5 V, AGP Pro 110 4X slot provides graphics performance for high-end graphics cards, combining AGP 4X bandwidth (data transfer rates as fast as 1056 MB/sec) with the ability to accept high-end graphics cards drawing up to 110 W of power. To accommodate AGP Pro cards, the AGP Pro 110 4X slot connector is wider than the standard AGP 4X connector. To meet the increased power requirements of AGP Pro graphics cards, additional pins are present at both ends of the connector. An AGP Pro card may draw power either from the existing part of the AGP Pro 110 4X connector, the extended part, or a combination of the two. In all cases, the maximum power that an AGP Pro card may draw is limited to 110 W in the Workstation models. Power on the existing part of the connector is delivered on 5.0 V and 3.3 V rails. Power on the extension is delivered on the 12 V and 3.3 V rails. You can use either standard AGP graphics cards or AGP Pro graphics cards that draw less than 110 W of power. Power is provided through 3.3 V, 5 V, or 12 V power rails. Do not use AGP Pro cards that draw more than 110 W or 3.3 V. The AGP Pro 110 4X slot is backward compatible with both AGP 1x and 2.x modes (using 1.5 V signalling) and AGP 4x mode (where 1.5 V signalling is necessary). Table 7-3 on page 102 describes the AGP Pro 110 4X connector. 36 Chapter 2