Intel 3U Compact PCI, MIC-3321 IDE HDD Block Mode, On-ChipPrimary SATA / Secondary PATA PCI IDE

IDE HDD Block Mode

Block mode is also called block transfer, multiple commands, or multiple sector read/write. If your IDE hard drive supports block mode (most new drives do), select Enabled for automatic detection of the optimal number of block read/writes per sector the drive can support.

The settings are: Enabled (Default), Disabled.

On-Chip Primary (SATA) / Secondary (PATA) PCI IDE

The integrated peripheral controller contains an IDE interface with sup- port for two IDE channels. Select Enabled to activate each channel sepa- rately. The settings are: Enabled (Default) and Disabled.

IDE Primary/Secondary Master/Slave PIO

The four IDE PIO (Programmed Input/Output) fields let you set a PIO mode (0-4) for each of the four IDE devices that the onboard IDE inter- face supports. Modes 0 through 4 provide successively increased perfor- mance. In Auto mode, the system automatically determines the best mode for each device. The settings are: Auto (Default), Mode 0, Mode 1, Mode 2, Mode 3, Mode 4.

IDE Primary/Secondary Master/Slave UDMA

Ultra DMA/33 implementation is possible only if your IDE hard drive supports it and the operating environment includes a DMA driver (Win- dows 95 OSR2 or a third-party IDE bus master driver). If your hard drive and your system software both support Ultra DMA/33 and Ultra DMA/66 and Ultra DMA/100, select Auto to enable BIOS support. The settings are: Auto (Default), Disabled.

Note:	Because CF Socket and 2.5”HDD Connector are
	the same IDE Channel (PATA).CF and HDD had
	a lot of Compatibility issues of timing and loading
	effect, when you need two devices in MIC-
	3321.Setting IDE HDD Block Mode and Second-
	ary Master/Slave UDMA Disabled.You must test
	compatibility in your system.

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