HP Z400 H2D81US, VA799UT 799UT#ABA manual Processor technology, Memory technology, Graphics

The following figure shows the typical workstation system board block diagram.

Figure 1-1System board block diagram

NOTE: The x1, x4, x8, and x16 designators describe the number of electrical PCIe lanes routed to an expansion slot. For example, x16(8) means that the expansion slot is mechanically a x16 length connector, with eight PCIe lanes connected.

Processor technology

This workstation uses the Intel® X58 Express chipset to support the latest Quad Core Intel® Xeon™ processor W3500 Series, including processors up to 130W. These processors incorporate an integrated 3-channel memory controller, microarchitecture improvements and large L3 cache to provide superior performance. In addition, the workstation uses Intel QuickPath Interconnect (QPI) to connect the processor and I/O controller with speeds up to 6.4 GT/s.

Memory technology

The workstation dual in-line memory modules (DIMMs) are based on DDR3 1333MHz technology, and are error checking and correcting (ECC)-protected. Three direct attach memory channels enable low latency accesses and fast data transfer for improved performance. System memory sizes up to 16GB (using 4GB DIMMs) are supported.

NOTE: DIMMs should be distributed across all three memory channels for optimal performance.

Graphics

The workstation supports PCIe Gen2 (PCIe2) bus speeds and can support dual PCIe Gen2 graphics cards in PCIe2 x16 slots. It supports graphics cards up to 150W in the primary graphics slot. If the primary graphics card consumes less than 150W, a second graphics card may be supported in the second PCIe2 x16 slot, subject to the overall 150W power system limitations.

2 Chapter 1 Product overview ENWW