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Solution Type Sun Alert Sure Solution 1018966.1 : False Uncorrectable Memory Errors may be generated if "PowerNow" is enabled on certain Sun Blade, Sun Fire, Sun Ultra and Netra Systems
PreviouslyPublishedAs 231245 Bug Id <SUNBUG: 6646941> Product Sun Ultra 40 M2 Workstation Sun Fire X4100 M2 Server Sun Fire X4200 M2 Server Sun Fire X4600 M2 Server Netra X4200 Server Sun Blade X6220 Server Module Sun Blade X8420 Server Module Sun Blade X8440 Server Module Date of Workaround Release 30-JAN-2008 Date of Resolved Release 16-Jul-2008 False Uncorrectable Memory Errors may be generated if "PowerNow" is enabled on certain Sun Blade, Sun Fire, Sun Ultra and Netra Systems 1. Impact False uncorrectable memory errors may be generated if "PowerNow" is enabled in the BIOS on certain Sun Blade, Sun Fire, Sun Ultra and Netra Servers/Modules, which may result in the loss of memory and inappropriate replacement of system parts. 2. Contributing Factors This issue can occur on the following platforms:
3. Symptoms A "sync flood" will be triggered either on booting or while running the OS. The server will reboot and display a message similar to the following: A Hyper Transport sync flood error occurred on last boot. If the boot is continued, the system will come up with a DIMM pair disabled. The following is a typical output from the 'ipmitool sel elist' command, which in this case shows the errors on the Node 1's memory: 6501 | 01/03/2008 | 11:29:52 | System Firmware Progress | Memory 4. Workaround To work around this issue,
disable the "PowerNow" feature in the BIOS (see #2 "Product
Documentation Links" in the "Resolution" section below). This procedure
will
require a reboot of the system when completed.
Note: Also clear any DIMM fault states, which can be done via the Server/Blade SP GUI or CLI interface. The procedure is also documented in the "Product Documentation Links" as listed in #2 below. 5. Resolution 1. First, if the BIOS is not up to date, update the system BIOS to the latest version available from one of the websites listed below. (There have been many recent modifications to memory timing on various platforms, and the BIOS update may be the only correction the system needs). BIOS update downloads are available from the following URLs: Sun Ultra 40 M2 Workstation: http://www.sun.com/desktop/workstation/ultra40/downloads.jsp Sun Fire X4100 M2 Server: http://www.sun.com/servers/entry/x4100/downloads.jsp Sun Fire X4200 M2 Server: http://www.sun.com/servers/entry/x4100/downloads.jsp Netra X4200 M2 Server: http://www.sun.com/servers/netra/x4200/support.xml Sun Fire X4600 M2 Server: http://www.sun.com/servers/x64/x4600/downloads.jsp Sun Blade X6220 Server Module: http://www.sun.com/servers/blades/downloads.jsp Sun Blade X8420 Server Module: http://www.sun.com/servers/blades/downloads.jsp#8000 Sun Blade X8440 Server Module: http://www.sun.com/servers/blades/downloads.jsp#8000 2. If the system is already running the latest BIOS and the instability issue(s) are still occurring, disable "PowerNow" in the system BIOS. Refer to applicable product documentation below for procedures describing how to do this on your specific platform. (If disabling "PowerNow" is not viable as a long term solution, please contact your Sun Support Representative for further details). Product Documentation Links: Sun Blade X6220 Server Module Documentation Sun Blade 8000 Modular System Documentation Sun Fire X4100 M2 Server Documentation Sun Fire X4200 M2 Server Documentation Sun Fire X4600 M2 Server Documentation Netra X4200 M2 Server Documentation Sun Ultra 40 M2 Workstation Documentation This Sun Alert notification is being provided to you on an "AS IS" basis. This Sun Alert notification may contain information provided by third parties. The issues described in this Sun Alert notification may or may not impact your system(s). Sun makes no representations, warranties, or guarantees as to the information contained herein. ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN. This Sun Alert notification contains Sun proprietary and confidential information. It is being provided to you pursuant to the provisions of your agreement to purchase services from Sun, or, if you do not have such an agreement, the Sun.com Terms of Use. This Sun Alert notification may only be used for the purposes contemplated by these agreements. Copyright 2000-2008 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved. Modification History 16-Jul-2008: Updated Contributing Factors, Workaround, and Resolution sections; now Resolved Internal Comments Please send technical questions to the following email: sunalert-tech-questions@sun.com and CC the following persons: Internal Contributor/Submitter Internal Eng Responsible Engineer Internal Services Knowledge Engineer Additional information and instructions for Field personnel regarding this issue are outlined in Field Action Bulletin (FAB) 239146 at http://sunsolve.sun.com/search/document.do?assetkey=1-63-239146-1 Note: FAB documents are specifically for "Internal" Sun Support ONLY. Do NOT share FAB details with customers. Internal Contributor/submitter John.J.Adams@sun.com Internal Eng Responsible Engineer John.Nerl@sun.com Internal Eng Business Unit Group NSG (Network Systems Group) Internal Escalation ID 1-23170007 Internal Sun Alert & FAB Admin Info 30-JAN-2008, David M: New, already reviewed 24hr previously from KASP, send for release 16-Jul-2008, david m: updated to add systems, provide resolution, etc. republish resolved Attachments This solution has no attachment |
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