Pch 7991 – Acnodes PCH 7991 User Manual
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PCH 7991
19 inch Atom Fanless Panel PC
© Copyright 2012 Acnodes, Inc.
All rights reserved. Product description and product specifications
are subject to change without notice. For latest product information,
please visit Acnodes’ web site at www.acnodes.com.
14628 Central Ave.
Chino, CA91710
Tel:909.597.7588, Fax:909.597.1939
IDE Se con dary Maste r U DMA
[Au to]
IDE Se con dary Slave U DMA
[Au to]
* ** On-Ch ip Se rial ATA Se tting ***
X SATA Mode
IDE
O n-Chip Seria l ATA
[A uto]
X SATA Port Sp eed Settin g
[Disable d]
X
PATA
IDE
mo de
[Sec ondary]
SATA Port
[P0,P2 is
Primary]
?? ? ? : Mo ve E n te r: Se lec t +/ -/ PU/ PD: Valu e F1 0:S a ve E SC:E xit F1 :Ge n era l He lp
F5 : P re vio u s Va lu es F6 : Fa il-S a fe De fa ults F7 : Op timize d Def au lts
I DE HDD Block Mode
If your ID E hard disk supports Bloc k mode (m ost current hard dis k pro ),
s elect Enabled and BIOS will au tomatically de tect optimum block mod e supporte d b y the hard disk.
This will improve the transfer perf ormanc e of h ard disk. Options are: Enabled and D isabled.
I DE DMA Transfer Acce ss
Op tions are: Enabled and Disabled.
O n-C hip Primary/Secondary PCI IDE
Each IDE port of integrated peripheral controller supports up to 2 IDE c
t o activate each ch an nel. Options are: Ena bled and Disabled.
I DE Primary /Secondary Ma ster/Slave PIO
The four IDE PIO (Programmed Input/Output) fields allow you to set a of
t he four IDE devices t hat the onboard IDE interface supports. Mode 0 t hrough 4 provides suc cessively
increased perform ance. In Auto mo de, the system automatically determines the best mode for each
d evice. Options are: Auto, Mode 0, Mode 1, Mode 3 and Mode 4.