Sluggish System Performance May Be Experienced With Bmc 60; Downgrading The Firmware Of The Integrated Raid (Romb), Intel® Embedded Server Raid Technology Ii, Or Sas May Cause System Damage; In The Intel® Server Systems Sr2500Allx And Sr1550Alsas, Flashing Of Sas; During Sas Controller Scanning - Intel BB5000XALR Specification

Monthly Specification Update
52.

Sluggish system performance may be experienced with BMC 60

Problem An issue with BMC 60 is causing incorrect interpretation of the user selected
Open Loop Thermal Throttling (OLTT) option in the BIOS Setup. The Advanced
screen in the BIOS Setup contains OLTT selections for Performance Mode and
Acoustic mode. BMC 60 recognizes a Performance Mode selection in the BIOS
setup as an Acoustic Mode request. An Acoustic Mode selection in the BIOS
setup is being disregarded and fail safe defaults for Fan Profiles are enforced.
This misinterpretation can manifest the BIOS/BMC interaction, causing a
throttling condition and thus slowing down the system performance significantly.
Implication Systems set to Performance Mode are incorrectly being configured in
Acoustics Mode, which can make the system more susceptible to overheating,
especially in 1U chassis or can cause performance degradation due to memory
throttling rather than fan boosts being used to cool the memory. Systems being
configured to Acoustics Mode in the BIOS are actually being set up in a fail
safe state.
Status This erratum is fixed in BMC 62 and later releases.
Workaround None.
53. Downgrading the firmware of the Integrated RAID (ROMB), Intel®
Embedded Server RAID Technology II, or SAS may cause system damage
Problem Downgrading the firmware of the Integrated RAID (ROMB), Intel
Server RAID Technology II, or SAS from the original version to older versions
may cause unexpected issues such as break the controller, or make the
controller invisible during system POST. The failure could result in permanent
damage that cannot be recovered.
Implication Any downgrade actions of firmware can cause a system breakdown. Intel does
not officially support firmware downgrade for any of above situations.
Status No Fix. Do not downgrade the firmware of the Integrated RAID (ROMB), Intel
Embedded Server RAID Technology II, or SAS.
Workaround None.
54. In the Intel® Server Systems SR2500ALLX and SR1550ALSAS, flashing
of SAS firmware 1.22 and SAS BIOS 06.16.00 makes hard drive #1
(upper left drive tray) undetected during SAS controller scanning
Problem In the Intel
SAS firmware 1.22 and SAS BIOS 06.16.00 makes hard drive #1 undetectable

during SAS controller scanning.

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Server Systems SR2500ALLX and SR1550ALSAS, flashing of
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Embedded
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