Page 134 - GIGABYTE Service Manual-v3.0-110101

SETTINGS.

05. Check IEEE 1394 ID (MAC Address) by HDD program. If wrong, correct it by
HDD program.
06. When there is problem with IEEE 1394 ID, you record or change TSB43AB23 chip
07. Check signals and voltages on solder pins of IEEE 1394 connector, using

oscilloscope or multi-meter.
08. Check all voltages on IEEE 1394 chip pins: VCC, 3VDUAL, DVDD, +12V_BUS,
BUSVCC0.
09. Check Clock: PCI_PCLK this Clock is from Clock Generator to TSB43AB23 chip.

10. Check CRISTAL 24M HZ.
11. Check RESET: -PCIRST.
12. Check all signals between PCI and IEEE 1394 chip are good AD [0; 31] & Control
Signals.

13. Before you change IEEE1394 chip or South-bridge, please make sure that above all
steps are measured.

8.3.1 IEEE1394 Functional Description

01. Power: VCC3, VCC_1.8V
02. Clock: SATAII Clock: 25MHz PCI Express
Clock: SRCCLK_MS、SRCCLK_MS

03. Reset: -PFMRST2
04. Control Signals: SMB_DAT, SMB_CLK
05. PCI Express: MS_IP、MS_OP、MS_IN、MS_ON
06. SATAII: SATA_TXP0、SATA_TXP1、SATA_RXP0、SATA_RXP1、
SATA_TXN0、SATA_TXN1、SATA_RXN0、SATA_RXN1

07. PCI Express External Reference Resistor: PCIE_REXT
08. SATA II Port 0, 1 External Reference Resistor: SATA_REXT0, SATA_REXT1

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