505
Scrub
Rate
Control
Register
Address
Depends
on
DctCfgSel
Description
When
DCT
Configuration
Select
[
DctCfgSel
] (
D
18
F
1
x
10
C
[0])
is
1
b
,
accesses
to
the
Scrub
Rate
Control
register
(
D
18
F
3
x
58)
incorrectly
accesses
a
different
register
that
does
not
actually
affect
any
hardware
.
Potential
Effect
on
System
Incorrect
scrub
rate
controls
may
be
read
or
in
effect
.
Suggested
Workaround
Software
should
clear
DctCfgSel
(
D
18
F
1
x
10
C
[0])
to
0
b
prior
to
any
access
to
D
18
F
3
x
58
Scrub
Rate
Control
Register
.
The
software
must
serialize
any
accesses
to
D
18
F
3
x
58
with
other
accesses
to
registers
that
use
DctCfgSel
.
When
enabling
scrub
settings
,
BIOS
should
write
D
18
F
3
x
58
twice
with
the
same
value
-
once
with
D
18
F
1
x
10
C
[0]
set
to
0
b
and
once
with
D
18
F
1
x
10
C
[0]
set
to
1
b
.
BIOS
should
program
D
18
F
1
x
10
C
[0]
to
0
b
before
handing
over
control
to
the
operating
system
.
Fix
Planned
No
fix
planned
48063
Rev
. 3.18
October
2012
Revision
Guide
for
AMD
Family
15
h
Models
00
h-
0
Fh
Processors
Product
Errata
27