Sun Ultra 27 Workstation Service Manual

Chapter 1 Sun Ultra 27 Workstation Hardware Features

This chapter provides an overview of the Sun Ultra 27 workstation hardware features, and includes the following sections:

Front Panel

Figure 1–1 Front Panel

The front panel of the Ultra 27 workstation

Figure Legend 

Power button 

Power LED 

1394 ports (2) 

USB 2.0 ports (2) 

Microphone-in jack 

Headphone-out jack 

Back Panel

Figure 1–2 Back Panel

The back panel of the Sun Ultra 27 workstation

Figure Legend 

AC power connector 

Power switch 

Audio jack (green) 

Line-in jack (blue)  

Mic jack (pink) 

Side audio connector (gray) 

Back audio connector (black) 

Center audio connector (orange) 

Four USB 2.0 ports  

10 

Ethernet connector 

11 

Cover plate (no slot) 

12 

Slot 0, PCIe 2 x16 

13 

Slot 1, PCIe 2 x8 mech./x4 elec. 

14 

Slot 2, PCIe 2 x16 

15 

Slot 3, PCIe x1 

16 

Slot 4, PCI 33 Mhz, 32–bit 

17 

Slot 5, PCIe x8 mech./x4 elec. 

18 

Thumbscrews (side cover) 

Internal Components and Cables

Figure 1–3 Internal Components

Figure showing the inside components, numbered and labelled
as in the table below.

Figure Legend 

Power supply 

DIMM slots (6) 

System fan 

Heat sink and CPU 

Blank unused slot 

Slot 0, PCIe2 x16 

Slot 1, PCIe2 (x8 mechanical, x4 electrical) 

Slot 2, PCIe2 x16 

Slot 3, PCIe x1 

10 

Slot 4, PCI 33 MHz, 32–bit slot 

11 

Slot 5, PCIe (x8 mechanical, x4 electrical) 

12 

System battery 

13 

DVD release latch 

14 

I/O release screw (captive) 

15 

Serial number  

16 

Hard drives (4 max.) 

Power Supply Cables and Connections

Figure 1–4 Power Supply Cables and Connections

The internal power supply connectors of the Sun Ultra
27 workstation

Figure Legend 

DVD power (P3, 4–pin and P5 15–pin) 

Disk storage backplane (P4 connects to J5) 

Supplemental power cable (labeled PCI and To Gfx Card or Splitter) connects to PCIe card  

P1 motherboard (PWR1 connects to PWR1) 

P2 motherboard (P2 connects to PWR2) 

   

Component Cables and Connections

Figure 1–5 Component Cables and Connections

The internal cabling for the Sun Ultra 27 workstation

Figure Legend 

Supplemental power cable (for PCIe cards) 

Power supply P1 to MB PWR1 

Power supply P2 to MB PWR2 

I/O board J1 to MB FPB_Audio 

System fan to MB SYS_FAN 

CPU fan to MB CPU_FAN 

DVD to MB SATA 0 (white) 

I/O board J5 to MB FPB_USB 

I/O board J8 to MB 13940-0 and 1394-1 

10 

I/O board J12 to MB FPB_CONN 

11 

SATA 1 to storage backplane HDD0 (black) 

12 

SATA 2 to storage backplane HDD1 (blue) 

13 

SATA 3 to storage backplane HDD2 (green) 

14 

SATA 4 storage backplane HDD3 (red)