C7Z87-OCE User’s Manual

Minimum Delay Time

CAS to RAS (tRCDmin)

Row Precharge (tRPmin)

Active to Precharege (tRASmin)

Max TOLUD (Top of Low Usable DRAM)

This feature sets the maximum TOLUD value, which specifies the "Top of Low Usable DRAM" memory space to be used by internal graphics devices, GTT Stolen Memory, and TSEG, respectively, if these devices are enabled. The op- tions are Dynamic, 1 GB, 1.25 GB, 1.5 GB, 1.75 GB, 2 GB, 2.25 GB, 2.5 GB, 2.75 GB, 3 GB and 3.25 GB.

Note: TSEG is a block of memory that is only accessible by the processor while operating in System Management Mode (SMM).

Memory Scrambler

This feature enables or disables memory scrambler support for memory error correction. The settings are Enabled and Disabled.

PCH-IO Configuration

This item displays the information for the PCH-IO Chip.

Intel PCH Rev ID

USB Configuration

USB Devices: 1 Keyboard, 1 Mouse, 2 Hubs

EHCI1

Select Enabled to enable EHCI (Enhanced Host Controller Interface) Controller 1 for USB 2.0 support. One EHCI controller must always be enabled. The settings are Enabled and Disabled.

EHCI2

Select Enabled to enable EHCI (Enhanced Host Controller Interface) Controller 2 for USB 2.0 support. One EHCI controller must always be enabled. The settings are Enabled and Disabled.

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SUPER MICRO Computer C7Z87-OCE PCH-IO Configuration, Max Tolud Top of Low Usable Dram, Memory Scrambler, EHCI1, EHCI2