SOYO SY-7ISA User Manual page 46

Socket 370 celeron processor supported fw82815e agp/pci/cnr 66/100/133 mhz front side bus supported atx form factor

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Hardware Installation

Set JP9 for FWH Boot Block Write-Protect

Step 4.

Setting this jumper to open will prevent the boot block area of the FWH

(FirmWare Hub) chip from being written data into such that it is write-

protected from unwanted or abnormal write activity.

Note: In some rare cases, the boot block area will need to be flashed to

complete the BIOS upgrade procedure. Setting JP9 to open will cause

incomplete BIOS update in that case.

The FWH Boot

Block Write-Protect

JP9 Setting

SPEAKER OPTION (JP22)

Step 5.

Through this jumper the case speaker output can be redirected to the

external (amplified) speakers (if connected) through the on-board Audio-

Codec.

SPEAKER OPTION

JP22 Setting

Locked

open JP9

1 2

Lineout SPK

Short pin

1-2

1 2 3

SY-7ISA

Unlocked

short JP9

CASE SPK

Short pin 2-3

1 2

1 2 3

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