1. TPTTDO (Daisy Chain b/w FPGAs) TPTTDO Probe for JTAG TPTTMS TPTDI TPTCLK

2. Probe for SPI / I 2 C TPMOSI TPSCLK TPMISO TPSEL1 TPSEL0 TPSDA TPSCL NOTE : U35 is I2C Bus Isolator

3. Probe for IPM Bus TPSDAB TPSCLB TPSDAA TPSCLA NOTE : U5 (bottom) is I2C Bus Isolator for IPMB A U6 (top) is I2C Bus Isolator for IMPB B

4. Probe for GND TPG3 TPG5 TPG6 TPG2 TPG1 TPG4

5. Probe driven by FPGA TP1_2 TP2_2 TP3_2 TP1_1 TP2_1 TP3_1 NOTE : TP1, 2, and 3 are connected to AD3, AD4, and AD2, respectively.

6. Power distribution (1) PIM In : 48V Out : 3.3V & -48V Power Converter In : -48V Out: VCC12 U16 In : VCC12 Out : VCC3V3 (20A) U17 In : VCC12 Out : VCC1V0 (20A)

7. Power distribution (2) U22 In : VCC1V8 Out : VDDR1 (1.5V) (3A, linear) U32 In : VCC1V8 Out : VDDR2 (1.5V) (3A, linear) U29 In : VCC3V3 Out : VCC2V5 (3A, linear) U18 In : VCC12 Out : VCC1V8 (10A) U23 In : VCC12 Out : MGTAVTT (10A) U21 In : VCC12 Out : MGTAVCC (10A)

8. U17 U16 117 118 121 120 VCC12 @U16, U17

9. VCC3V3 @U29 U29 157 VCC3V3

10. MGTAVCC (1.0V) @U21 U21 86896576 MGTAVCC

11. MGTAVTT (1.2V) @U23 13290122105 MGTAVTT U23

12. 20 3.3V (management) 19 3.3V (management) Management 3.3V @ PIM

13. 66_1 68_1 67_1 67_2 66_2 68_2 VCC1V8 VCC1V8@FPGA

14. VDDR1@U22 VDDR2@U32 Pin5 or Pin4. Pin5 looks easier to avoid short with PIn3 of GND U22 U32

15. 55_2 75_2 155_2 115 53_2 60_2 53_1 55_1 54_1 75_1 54_2 59_1 VCC3V3 VCC1V0 VCC3V3 56_1 56_2 156_1 155_1 156_2 60_2 59_2 VCC2V5 VCC1V0 VCC3V3 Polarized Capacitors (330uF, Yellow big ones) VCC1V8