<s>
AMD	B-Device
580	I-Device
chipset	I-Device
series	I-Device
is	O
a	O
computer	O
chipset	B-Device
series	O
designed	O
by	O
the	O
AMD	O
Graphics	O
Product	O
Group	O
,	O
for	O
the	O
AMD	O
processors	O
.	O
</s>
<s>
It	O
was	O
designed	O
for	O
usage	O
with	O
ATI	O
's	O
CrossFire	O
Multi	O
GPU	B-Architecture
Technology	O
,	O
with	O
both	O
PCI	B-Protocol
Express	O
slots	O
running	O
at	O
x16	O
lanes	O
each	O
.	O
</s>
<s>
The	O
580X	B-Device
chipset	B-Device
was	O
originally	O
named	O
the	O
"	O
ATI	O
Radeon	O
Xpress	O
3200	O
chipset	B-Device
"	O
.	O
</s>
<s>
The	O
Radeon	O
Xpress	O
chipset	B-Device
was	O
designed	O
by	O
ATI	O
to	O
enter	O
the	O
realm	O
of	O
the	O
desktop	O
arena	O
,	O
especially	O
the	O
AMD	O
Socket	O
939	O
platform	O
where	O
ATI	O
's	O
rival	O
,	O
nVidia	O
,	O
had	O
a	O
clear	O
market	O
advantage	O
.	O
</s>
<s>
The	O
Xpress	B-Device
200	I-Device
was	O
launched	O
with	O
the	O
CrossFire	O
edition	O
of	O
the	O
chipset	B-Device
considered	O
as	O
the	O
high	O
end	O
of	O
the	O
chipset	B-Device
.	O
</s>
<s>
Reviews	O
painted	O
the	O
Xpress	B-Device
200	I-Device
Crossfire	O
as	O
a	O
board	O
that	O
could	O
match	O
nVidia	O
's	O
nForce	B-Device
4	I-Device
SLI	I-Device
.	O
</s>
<s>
With	O
the	O
release	O
of	O
the	O
nForce	B-Device
4	I-Device
16x	O
SLI	O
,	O
ATI	O
changed	O
strategy	O
and	O
announced	O
the	O
RD580	B-Device
chipset	B-Device
.	O
</s>
<s>
The	O
RD580	B-Device
was	O
the	O
same	O
as	O
the	O
Xpress	B-Device
200	I-Device
chipset	B-Device
with	O
the	O
exception	O
of	O
the	O
40	O
PCI	B-Protocol
Express	O
lanes	O
within	O
the	O
northbridge	B-Device
.	O
</s>
<s>
It	O
was	O
claimed	O
by	O
ATI	O
that	O
having	O
2	O
chipsets	B-Device
with	O
20	O
PCI	B-Protocol
Express	O
lanes	O
would	O
slow	O
down	O
data	O
transfers	O
when	O
the	O
chipset	B-Device
is	O
working	O
in	O
multi-GPU	O
configurations	O
.	O
</s>
<s>
Having	O
all	O
of	O
the	O
PCI	B-Protocol
Express	O
lanes	O
within	O
the	O
Northbridge	B-Device
claimed	O
to	O
be	O
more	O
efficient	O
and	O
less	O
bottlenecking	O
as	O
compared	O
to	O
the	O
nForce	B-Device
4	I-Device
16x	O
SLI	O
.	O
</s>
<s>
The	O
RD580	B-Device
was	O
called	O
the	O
"	O
Radeon	O
Xpress	O
3200	O
"	O
and	O
was	O
released	O
on	O
March	O
1	O
,	O
2006	O
.	O
</s>
<s>
Supposedly	O
,	O
the	O
chipset	B-Device
is	O
also	O
configured	O
for	O
the	O
new	O
Socket	O
AM2	O
and	O
of	O
such	O
,	O
many	O
motherboard	O
manufacturers	O
have	O
decided	O
to	O
skip	O
the	O
Socket	O
939	O
RD580	B-Device
and	O
began	O
research	O
and	O
development	O
(	O
R&D	O
)	O
on	O
the	O
Socket	O
AM2	O
version	O
of	O
RD580	B-Device
.	O
</s>
<s>
With	O
the	O
launch	O
of	O
the	O
socket	O
AM2	O
,	O
ATI	O
also	O
announced	O
the	O
release	O
of	O
their	O
SB600	O
southbridge	B-Device
which	O
was	O
to	O
be	O
compatible	O
with	O
the	O
RD580	B-Device
northbridge	B-Device
.	O
</s>
<s>
Originally	O
,	O
the	O
SB450/SB460	O
was	O
highly	O
flawed	O
in	O
the	O
USB	B-Protocol
design	O
and	O
lacking	O
in	O
cutting	O
edge	O
features	O
as	O
compared	O
to	O
nVidia	O
's	O
counterpart	O
which	O
resulted	O
in	O
low	O
sales	O
.	O
</s>
<s>
The	O
ULi	O
1575	O
Southbridge	B-Device
was	O
the	O
other	O
preferred	O
Southbridge	B-Device
until	O
nVidia	O
took	O
over	O
ULI	O
.	O
</s>
<s>
As	O
a	O
result	O
,	O
high	O
expectations	O
was	O
placed	O
on	O
ATI	O
to	O
design	O
a	O
Southbridge	B-Device
that	O
was	O
on-par	O
or	O
greater	O
than	O
the	O
ULI	O
1575	O
.	O
</s>
<s>
As	O
reference	O
boards	O
for	O
Socket	O
AM2	O
trickled	O
out	O
,	O
many	O
sites	O
commented	O
that	O
ATI	O
had	O
an	O
even	O
footing	O
against	O
nVidia	O
with	O
great	O
improvement	O
in	O
the	O
SB600	O
southbridge	B-Device
.	O
</s>
<s>
As	O
of	O
the	O
completion	O
of	O
the	O
acquisition	O
of	O
ATI	O
,	O
AMD	O
has	O
currently	O
moved	O
to	O
rename	O
all	O
ATI	O
chipsets	B-Device
for	O
the	O
AMD	O
platform	O
.	O
</s>
<s>
The	O
Xpress	O
3200	O
CrossFire	O
chipsets	B-Device
for	O
Socket	O
AM2	O
processors	O
have	O
been	O
renamed	O
as	O
the	O
"	O
AMD	B-Device
580X	I-Device
Crossfire	O
"	O
chipset	B-Device
,	O
for	O
the	O
socket	O
939	O
variant	O
,	O
since	O
AMD	O
has	O
stopped	O
producing	O
socket	O
939	O
CPUs	O
,	O
the	O
"	O
Xpress	O
3200	O
CrossFire	O
"	O
chipset	B-Device
for	O
socket	O
939	O
CPUs	O
,	O
has	O
not	O
been	O
renamed	O
.	O
</s>
<s>
To	O
the	O
consumer	O
nowadays	O
,	O
the	O
RD580	B-Device
is	O
known	O
as	O
the	O
"	O
CrossFire	O
Xpress	O
3200	O
"	O
.	O
</s>
<s>
Since	O
ATI	O
was	O
merged	O
as	O
a	O
subsidiary	O
of	O
AMD	O
in	O
October	O
,	O
the	O
naming	O
scheme	O
of	O
AMD	O
chipset	B-Device
platforms	O
have	O
been	O
changed	O
,	O
and	O
is	O
summarized	O
below	O
:	O
</s>
<s>
Therefore	O
,	O
under	O
the	O
naming	O
scheme	O
,	O
the	O
chipsets	B-Device
will	O
be	O
renamed	O
as	O
follows	O
:	O
</s>
<s>
Original	O
codename	O
Segment	O
Name	O
under	O
old	O
scheme	O
Prefix	O
Suffix	O
Current	O
name	O
RD580	B-Device
Enthusiast	O
Multi-GPU	O
CrossFire	O
Xpress	O
3200	O
-	O
X	O
AMD	B-Device
580X	I-Device
CrossFire	O
Chipset	B-Device
RD550/RD570	O
?	O
</s>
<s>
For	O
instance	O
,	O
chipsets	B-Device
which	O
support	O
multi-GPUs	O
will	O
add	O
an	O
"	O
X	O
"	O
as	O
suffix	O
,	O
thus	O
making	O
"	O
RD580	B-Device
"	O
become	O
"	O
AMD	B-Device
580X	I-Device
CrossFire	O
chipset	B-Device
"	O
.	O
</s>
<s>
The	O
northbridge	B-Device
supports	O
up	O
to	O
40	O
PCI	B-Protocol
Express	O
lanes	O
.	O
</s>
<s>
32	O
PCI	B-Protocol
Express	O
lanes	O
are	O
dedicated	O
for	O
two	O
16x	O
PCI	B-Protocol
Express	O
slots	O
.	O
</s>
<s>
4	O
PCI	B-Protocol
Express	O
lanes	O
are	O
used	O
for	O
interconnection	O
between	O
the	O
northbridge	B-Device
and	O
southbridge	B-Device
(	O
A-Link	O
II	O
)	O
.	O
</s>
<s>
The	O
configuration	O
of	O
the	O
other	O
PCI	B-Protocol
Express	O
lanes	O
is	O
up	O
to	O
the	O
motherboard	O
manufacturer	O
to	O
decide	O
.	O
</s>
<s>
Compatible	O
with	O
either	O
ATI	O
's	O
SB450/SB460/SB600	O
or	O
ULI	O
's	O
M1573/M1575	O
southbridge	B-Device
(	O
unavailable	O
as	O
a	O
result	O
of	O
NVIDIA	O
's	O
acquisition	O
of	O
ULI	O
in	O
2006	O
)	O
.	O
</s>
<s>
The	O
SATA	O
can	O
be	O
formed	O
a	O
RAID	B-Architecture
0	O
,	O
1	O
or	O
0+1	O
if	O
used	O
with	O
the	O
SB450/SB460	O
southbridge	B-Device
.	O
</s>
<s>
Support	O
for	O
4	O
SATA2/SATA	O
and	O
4	O
PATA	B-Protocol
drives	O
and	O
the	O
SATA	O
can	O
be	O
formed	O
into	O
a	O
RAID	B-Architecture
of	O
0	O
,	O
1	O
,	O
1+0	O
,	O
5	O
or	O
JBOD	O
(	O
also	O
known	O
as	O
Just	O
a	O
Bunch	O
of	O
Disks	O
)	O
if	O
used	O
with	O
the	O
ULI	O
M1575	O
southbridge	B-Device
.	O
</s>
<s>
Support	O
for	O
4	O
SATA	O
and	O
2	O
PATA	B-Protocol
drives	O
if	O
used	O
with	O
the	O
SB600	O
with	O
RAID	B-Architecture
support	O
standard	O
0	O
,	O
1	O
or	O
1+0	O
levels	O
.	O
</s>
<s>
Support	O
for	O
multi-GPU	O
configuration	O
known	O
as	O
CrossFire	O
.	O
</s>
<s>
Originally	O
RD580	B-Device
,	O
reference	O
board	O
codenamed	O
"	O
Manta	O
"	O
because	O
of	O
the	O
use	O
of	O
aquarium	O
fishes	O
for	O
codenames	O
within	O
ATI	O
.	O
</s>
<s>
Dongleless	O
Crossfire	O
support	O
at	O
16x-16x	O
PCI	B-Protocol
Express	O
lanes	O
which	O
is	O
the	O
only	O
chipset	B-Device
provided	O
with	O
two	O
16x	O
PCI-E	O
CrossFire	O
mode	O
aimed	O
at	O
enthusiast	O
market	O
.	O
</s>
<s>
The	O
package	O
of	O
the	O
RD580	B-Device
is	O
no	O
bigger	O
than	O
a	O
US	O
50-cent	O
piece	O
and	O
has	O
a	O
thermal	O
dissipation	O
rating	O
of	O
7	O
watts	O
.	O
</s>
<s>
Can	O
be	O
paired	O
with	O
ULi	O
southbridges	B-Device
,	O
ATI	O
SB400	O
series	O
and	O
SB600	O
southbridges	B-Device
for	O
various	O
numbers	O
of	O
USB	B-Protocol
and	O
SATA	O
3.0	O
Gbit/s	O
peripherals	O
.	O
</s>
<s>
The	O
report	O
also	O
reveals	O
that	O
a	O
chipset	B-Device
codenamed	O
"	O
RD550	O
"	O
,	O
named	O
as	O
"	O
AMD	B-Device
550X	I-Device
CrossFire	O
chipset	B-Device
"	O
,	O
provides	O
2	O
PCI-E	O
lanes	O
for	O
Dual	O
card	O
CrossFire	O
configurations	O
,	O
and	O
is	O
focused	O
in	O
the	O
mainstream	O
market	O
.	O
</s>
<s>
However	O
,	O
as	O
of	O
the	O
middle	O
of	O
May	O
2007	O
,	O
there	O
was	O
no	O
sign	O
of	O
release	O
of	O
the	O
550X	O
chipset	B-Device
.	O
</s>
<s>
Support	O
for	O
up	O
to	O
20	O
PCI	B-Protocol
Express	O
lanes	O
.	O
</s>
<s>
Can	O
be	O
paired	O
with	O
ULi	O
southbridges	B-Device
,	O
ATI	O
SB400	O
series	O
and	O
SB600	O
southbridges	B-Device
for	O
various	O
numbers	O
of	O
USB	B-Protocol
and	O
SATA	O
3.0	O
Gbit/s	O
peripherals	O
.	O
</s>
<s>
Support	O
for	O
up	O
to	O
7	O
PCI	B-Protocol
slots	I-Protocol
.	O
</s>
<s>
Support	O
for	O
ATI	O
CrossFire	O
multi-GPU	O
technology	O
.	O
</s>
<s>
Motherboards	O
utilising	O
this	O
chipset	B-Device
will	O
feature	O
two	O
16x	O
PCI-Express	O
slots	O
which	O
only	O
operate	O
at	O
x8	O
lanes	O
when	O
CrossFire	O
is	O
enabled	O
.	O
</s>
<s>
The	O
southbridge	B-Device
paired	O
with	O
some	O
of	O
the	O
580X	B-Device
and	O
480X	B-Device
chipsets	B-Device
,	O
all	O
of	O
the	O
570X	B-Device
chipsets	B-Device
,	O
all	O
AMD	O
690	O
chipsets	B-Device
,	O
and	O
early	O
AMD	O
790	O
chipsets	B-Device
,	O
is	O
the	O
SB600	O
or	O
IXP600	O
.	O
</s>
<s>
It	O
is	O
based	O
on	O
a	O
130	B-Algorithm
nm	I-Algorithm
fabrication	O
process	O
with	O
dimensions	O
23mm×23mm	O
and	O
549	O
pins	O
FC	B-Device
BGA	B-Algorithm
package	O
,	O
and	O
provides	O
10USB	O
,	O
1ATA/133	O
,	O
and	O
4	O
SATA	O
3.0	O
Gbit/s	O
interfaces	O
.	O
</s>
<s>
It	O
supports	O
RAID	B-Architecture
0	O
,	O
1	O
,	O
0+1	O
,	O
and	O
10	O
across	O
all	O
four	O
SATA	O
ports	O
(	O
all	O
four	O
ports	O
are	O
required	O
for	O
RAID	B-Architecture
10	O
functionality	O
,	O
and	O
high-definition	O
audio	O
codec	B-General_Concept
support	O
.	O
</s>
<s>
Also	O
,	O
the	O
chipset	B-Device
says	O
it	O
supports	O
64-bit	O
DMA	B-General_Concept
but	O
it	O
really	O
only	O
supports	O
32-bit	O
.	O
</s>
<s>
The	O
SB660	O
is	O
notably	O
used	O
in	O
the	O
AmigaOne	B-Device
X1000	I-Device
,	O
which	O
has	O
a	O
PowerPC	B-Architecture
CPU	O
instead	O
of	O
a	O
x86	O
CPU	O
for	O
which	O
the	O
SB660	O
was	O
not	O
designed	O
for	O
.	O
</s>
