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Bios – Artesyn ATCA 7370 / ATCA 7370-S Installation and Use (January 2015) User Manual

Page 78

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BIOS

ATCA-7370/ATCA-7370-S Installation and Use (6806800P54H)

78

Example:
Set threshold to 10.
Given a dual rank DIMM and if 5 errors occur in rank 0 DIMM and 5 errors in rank 1
DIMM, then no ECC event is recorded.
Given a dual rank DIMM and if all the 10 errors occur in one single rank i.e. either rank
0 or rank 1 DIMM, then an ECC event is recorded.

Available memory space below 4GB boundary - The ATCA-7370 provides 3.25 GB memory
space below 4 GB boundary. The memory map below 4GB is listed in the following table:

The memory test is in the Intel Memory Reference Code (MRC) and uses hardware
controller intrinsic functions. For more information on MRC, see chapter 7.13 of Intel Xeon
Processor E5-1600/2400/2600/4600 Product Families System Agent BIOS Specification 1.01
document (document number 489625)
.

Artesyn recommends inserting memory modules of the same type into all slots of the
ATCA-7370. With mixed memory, like different model, voltage, or frequency, the system
may run in a degraded performance. Though not recommended, a certain combination is
possible with the following restrictions:

A mix of different sizes

A mix of 1.5V and 1.35V modules: all will be configured with 1.5V

A mix of 1600MHz and 1333MHz: all will run with 1333MHz

Address range

Content

F000_0000 ~ FFFF_FFFF

Flash range
RCRB register
APIC register etc

E000_0000 ~ EFFF_FFFF

256MB PCIe extend memory space

D000_0000 ~ DFFF_FFFF

PCIe BAR MMIO

0000_0000 ~ CFFF_FFFF

3.25GB available physical memory
space