Sun Microsystems, Inc.   Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition
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Ultra 20 (A63)

375-3306 375-3419
Tyan Tomcat K8E S2865 Tyan Tomcat K8E S2865

Connectors

LOCATION DESCRIPTION
J8 Front Panel Audio
J9 Audio In from CD/DVD
J13 Front Fan 1
J22 CPU Fan
J17/J28 Front Panel LAN1/LAN2 Link and Activity LED
J19/J23 Front Panel LAN1/LAN2 Speed LED
J30/J31 SATA1 / SATA2
J34/J35 USB3 not installed / Yellow USB4 to Front Panel USB
J37/J38 SATA3 / SATA4 not used
J40 COM2 Serial Port
J41/J43 IEEE 1394-2 and IEEE 1394-1
J45 Front Panel Header

Jumper Settings

JUMPER PINS SETTING DESCRIPTION
JP2 1-2
2-3
In
In
Normal CMOS (default)
Clear CMOS (temporary setting only)
JP3 1-2
2-3
In
In
Select 3.3V PCI Slot (default)
Select 5.0V PCI Slot

Ultra 20 Codename: Marrakesh

Notes

  1. The minimum Solaris operating system is Solaris 10 3/05 x64.
  2. Install a single DIMM in any slot.
  3. A three DIMM memory configuration is not supported.
  4. Install the first DIMM pair in slots DIMM 1 and DIMM 2.
  5. Install the second DIMM pair in slots DIMM 3 and DIMM 4.
  6. Mouse 370-3632 is not qualified for use on the Ultra 20. Use Mouse 371-0754.
  7. The LAN2 function on the USB3/USB4 connector is not installed.

Clearing CMOS Notes

  1. Power off the system and disconnect the AC power cord.
  2. Move the jumper at JP2 to Pin 2 and Pin 3 for several seconds.
  3. Move the jumper at JP2 back to Pin 1 and Pin 2.
  4. Reconnect the AC power cord.

References

  1. Ultra 20 User Guide, 819-2146.
  2. Ultra 20 Release Notes, 819-2147.
  3. Ultra 20 Getting Started Guide, 819-2148.

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