Intel SDS2 Lower performance with CAS Latency 2 memory, Revision 113 Order Number A85874-002

Intel® Server Board SDS2 Errata Listing

1600x1200

Not supported.

Workaround:	Utilize a video mode that is currently supported by the SDS2 Server Board.
Status:	Fixed. SDS2 BIOS Production Release 2.4 (Build 47) and later versions have
	added support for additional high resolution video modes. The following video
	modes are supported by SDS2 BIOS Production Release 2.4 (Build 47) and
	later versions:
	640x480: Supported at refresh rates of 120Hz and lower
	800x600: Supported at refresh rates of 100Hz and lower
	1024x768: Supported at refresh rates of 80Hz and lower
	1152x864: Supported at refresh rates of 75Hz and lower
	1280x1024: Supported at refresh rates of 60Hz and lower
	1600x1200: Not supported
	Selecting an unsupported video mode no longer causes the monitor to turn gray
	or to operate incorrectly.

11.Lower performance with CAS Latency 2 memory

Problem:	Performance of the Intel® Server Board SDS2 memory subsystem is lower
	than expected when CAS Latency 2 memory is used. The copy bandwidth
	observed with CAS Latency 2 memory installed is less than the copy bandwidth
	with CAS Latency 3 memory installed.
Implication:	The memory subsystem copy performance of the SDS2 Server Board is lower
	with CAS Latency 2 memory installed than with CAS Latency 3 memory
	installed.
Workaround:	Use of CAS Latency 3 memory is recommended for optimum memory
	subsystem copy performance.
Status:	Fixed. This issue is fixed in SDS2 BIOS Production Release 2.4 (Build 47) and
	later versions. When using SDS2 BIOS Production Release 2.4 (Build 47), the
	copy bandwidth observed with CAS Latency 2 memory installed is greater than
	the copy bandwidth with CAS Latency 3 memory installed.

12.SDS2 reboots during POST with 4GB or more of total system memory installed

Problem:	When 4GB or more of total system memory is installed in the SDS2 server
	board, and the Extended RAM step option in BIOS Setup is set to “Every
	Location”, the SDS2 server board will reboot during the memory scan portion of
	POST. This is due to a timeout of the FRB-2 timer.

Revision 1.2	113
Order Number:	A85874-002