Sun Microsystems, Inc.   Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition
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Voltage Regulator Modules

Servers: Sun Fire V20z/V40z

370-6646 370-6680
2.5V Memory VRM
Newisys S00376		 60A CPU VRM
Newisys S00374
370-7747 370-7746 371-1464 371-1463
2.6V Memory VRM
Newisys S01940		 80A CPU VRM
Newisys S02326		 2.6V Memory VRM
Newisys unknown		 80A CPU VRM
Newisys unknown

Memory Voltage Regulator Module (370-6646, 370-7747, 371-1464)

Opteron CPU Voltage Regulator Module (370-6680)

Opteron CPU Voltage Regulator Module (370-7746, 371-1463)

Sun Fire V20z Codename: Stinger2P
Sun Fire V40z Codename: Stinger4P

Memory VRM Notes

  1. VRM 370-6646 supports DDR333/PC2700 DIMMs.
  2. VRM 370-6646 is included with Opteron C0 and CG Stepping Options.
  3. VRM 370-7747 supports DDR333/PC2700 and DDR400/PC3200 DIMMs.
  4. VRM 371-1464 supports DDR333/PC2700 and DDR400/PC3200 DIMMs.
  5. VRM 370-7747 is included with Opteron E4 Stepping Options.
  6. VRM 371-1464 is included with RoHS Opteron E4 Stepping Options.
  7. VRM 370-7747 is included with dual core Opteron E1 and E6 Stepping Options.
  8. VRM 371-1464 is included with RoHS dual core Opteron E1 and E6 Stepping Options.

Sun Fire V20z Notes

  1. Use CPU VRM 370-6680 with V20z Chassis FRU 380-0979.
  2. Use CPU VRM 370-6680 with V20z Chassis FRU 380-1168.
  3. Use CPU VRM 370-7746 with V20z Chassis FRU 380-1194.
  4. CPU VRM 370-6680 is not pin compatible with V20z Chassis FRU 380-1194.
  5. CPU VRM 370-7746 is not pin compatible with V20z Chassis FRU 380-0979.
  6. CPU VRM 370-7746 is not pin compatible with V20z Chassis FRU 380-1168.

Sun Fire V40z Notes

  1. Use CPU VRM 370-6680 with V40z Chassis FRU 380-1010.
  2. Use CPU VRM 370-7746 with V40z Chassis FRU 380-1206.
  3. Use CPU VRM 371-1463 with V40z S3 Chassis FRU 380-1378.
  4. CPU VRM 370-6680 is not pin compatible with V40z S2 Chassis FRU 380-1206.
  5. CPU VRM 370-6680 is not pin compatible with V40z S3 Chassis FRU 380-1378.
  6. CPU VRM 370-7746 is not pin compatible with V40z S1 Chassis FRU 380-1010.
  7. CPU VRM 371-1463 is not pin compatible with V40z S1 Chassis FRU 380-1010.

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