PCI & PCI-E Sephiroth Kwon GRMA 2009-05-26

PCI

Outline Diagram Signal Description Repair Flow Chart Repair Technique

PCI

PCI Diagram PCI BUS PCI SLOT South Bridge Clock Gen. Clock Signal

PCI Diagram Clock Gen. Clock Circuit PCI 1 C RN PCI 2 PCI 3 PCLK1 B76

Signal Description PCI Compliant Device AD[63:32] C/BE[7:4]# PAR64 REQ63# ACK64# LOCK# INTA# INTB# INTC# INTD# SBO# SDONE TDI TDO TRST# TCK TMS AD[31:0] C/BE[3:0] PAR FRAME# IRDY# TRDY# STOP# DEVSEL# IDSEL PERR# SERR# REQ# GNT# CLK# RST# Address & Data Interface Control System Arbitration Error Reporting

Voltage and Clock 1.Check Voltage： 2.Check Clock： Pin# Voltage A2 +12V A5 +5V A8 A10 +5V(I/O) A16 A21 +3.3V A27 A33 A39 A45 A53 A59 A61 A62 Pin# Voltage B1 -12V B5 +5V B6 B19 +5V(I/O) B25 +3.3V B31 B36 B41 B43 B54 B59 B61 B62 Pin# Frequency B16 33MHz A mean “Left”, B mean “Right”

AD Signal Pin Name Pin# Diode Mode Sample AD[00] A58 .317 AD[01] B58 .319 AD[02] A57 .321 AD[03] B56 .318 AD[04] A55 AD[05] B55 AD[06] A54 AD[07] B53 AD[08] B52 AD[09] A49 AD[10] B48 AD[11] A47 AD[12] B47 AD[13] A46 .323 AD[14] B45 AD[15] A44 Pin Name Pin# Diode Mode Sample AD[16] A32 .317 AD[17] B32 .319 AD[18] A31 .321 AD[19] B30 .318 AD[20] A29 AD[21] B29 .322 AD[22] A28 AD[23] B27 AD[24] A25 AD[25] B24 AD[26] A23 AD[27] B23 .323 AD[28] A22 AD[29] B21 AD[30] A20 AD[31] B20

Control Signal 1.Check Control Signal： A mean “Left”, B mean “Right” Pin Name Pin# FRAME# A34 IRDY# B35 TRDY# A36 STOP# A38 DEVSEL# B37 IDSEL A26 A mean “Left”, B mean “Right”

(1)System Pins CLK All other PCI signals, except RST#, INTA#, INTB#, INTC#, and INTD#, are sampled on the rising edge of CLK and all other timing parameters are defined with respect to this edge. RST# Anytime RST# is asserted, all PCI output signals must be driven to their initial state. RST# may be asynchronous to CLK when asserted or deasserted.

(2) Address and Data Pins A bus transaction consists of an address phase followed by one or more data phases. PCI supports both read and write bursts. C/BE[3::0]# During the address phase of a transaction, C/BE[3::0]# define the bus command. During the data phase, C/BE[3::0]# are used as Byte Enables.

(3)Interface Control Pins FRAME# (Cycle Frame) Driven by the current master to indicate the beginning and duration of an access. IRDY# (Initiator Ready) Indicates the initiating agent’s (bus master’s) ability to complete the current data phase of the transaction. TRDY# (Target Ready) Indicates the target agent’s (selected device’s) ability to complete the current data phase of the transaction. DEVSEL# (Device Select) Indicates the driving device has decoded its address as the target of the current access. STOP# Indicates the current target is requesting the master to stop the current transaction. IDSEL (Initialization Device Select) Chip select during configuration read and write transactions.

(4)Arbitration Pins REQ# GNT# Indicates to the arbiter that this agent desires use of the bus. This is a point-to-point signal. Every master has its own REQ#. GNT# Indicates to the agent that access to the bus has been granted. This is a point-to-point signal. Every master has its own GNT#.

(5)Interrupt Pins Interrupts on PCI are optional and defined as “level sensitive”, “active low”, using open drain output drivers. INTA# : Interrupt A is used to request an interrupt. INTB~D# : Interrupt B~D are used to request an interrupt and only has mean on a multi-function device.

Repair Flow Chart START Visual Inspection check PCI pin is not bent or damaged. Measure PCI Voltage Measure PCI AD signals Measure PCI Clock Measure PCI control signals Remove NG Device under PCI /Change SB Change any damaged PCI connector Check PCI Voltage 12V.-12V.5V.3V.3VSB Check PCI CLK 33Mhz Check AD0~31, compare with good MB Check RST#,FRAME#, DEVSEL#,IRDY#..... Fix any trace open or RLC damaged Fix any trace or RLC damaged, change NG CLK Generator Finished OK NG

Repair Technique-Visual Inspection Visual Inspection to check the PCI connector is no pin bent or broken. 1

Repair Technique-Measure PCI Voltage Use Multi-Meter to measure PCI related voltages (+12V, -12V,5V,3.3V) 2

Repair Technique-Measure PCI Clock Use Oscilloscope to measure PCI Clock =33Mhz 3-1 3-2

Repair Technique- Measure PCI other signals Use Multi-Meter to measure other PCI signals: AD0~AD31(refer to P16)& control signals ( FRAME#, IRDY#, TRDY#.......(refer to P17) Compare with good MB. If find error trace the connection to find any trace open or short. If cannot find the root cause please try to remove other component under PCI bus and change PCI controller-SB. 4

PCI-E

Outline Diagram Signal Description Repair Flow Chart Repair Technique

PCI-E

PCI-E X16 Diagram-1 North Bridge B8,A9,A10 +3V B10 +3VSB PCI-E *16 SLOT North Bridge +3V B8,A9,A10 +3VSB B10 +12V B1,B2,B3,A2,A3

PCI-E X16 Diagram-2 Clock Gen. Clock Circuit R PCI-E *16 Clock+ Clock-

PCI-E X1 Diagram PCIE*1 +12V (B1,B2,B3) +12V (A2,A3) +3V (A9,A10) Clock (A13,A14) +12V (B1,B2,B3) +3VSB (B10) +3V (B8) PCIE*1 North & South Bridge

Repair Flow Chart START Visual Inspection check PCI-E pin is not bent or damaged. Measure PCI-E Voltage Measure PCI-E TX /RX signals Measure PCI-E Clock Change NB(PCI-EX16) or SB(PCI-EX1) Change any damaged in PCI-E connector Check PCI Voltage 12V.3V.3VSB Check PCI-E CLK 100Mhz Check TX /RX signals, compare with good MB Fix any trace open or RLC damaged Fix any trace or RLC damaged, change NG CLK Generator Finished OK NG

Repair Technique-Visual Inspection Visual Inspection to check PCI-E connector is not damaged or bent pin inside. 1-1 1-2

Repair Technique-Measure PCI-E Voltage Use Multi-Meter to measure PCI-E working Voltages—12V, 3V, 3VSB. 2-1 P.S. We can use PCI-E X16 Signals Pin Out card to measure. P/N: 08-900036900 Name: ENG_PCI-E PIN NAME R1.00 2-2

Repair Technique- Measure PCI-E Clock Use Oscilloscope to measure PCI-E CLK =100Mhz 3-1 3-2

Repair Technique-Measure PCI-E TX/RX signals Use Multi-Meter to measure PCI-E TX/RX signals, compare with good MB. If find error please trace the circuit to check related trace & RLC components. If still can’t find any abnormal please try to change NB (PCI-E X16 controller) or SB (PCI-E X1 controller). 4-1 4-2

Thank You!