<s>
The	O
i-RAM	B-Device
is	O
a	O
solid-state	B-Device
storage	I-Device
device	I-Device
produced	O
by	O
Gigabyte	O
and	O
released	O
in	O
June	O
2005	O
.	O
</s>
<s>
It	O
has	O
four	O
DDR	O
RAM	B-Architecture
DIMM	B-General_Concept
slots	O
,	O
and	O
a	O
connection	O
via	O
a	O
SATA	O
port	O
enables	O
a	O
PC	O
to	O
see	O
the	O
i-RAM	B-Device
as	O
a	O
hard	O
disk	O
drive	O
,	O
which	O
can	O
also	O
be	O
made	O
bootable	O
.	O
</s>
<s>
As	O
the	O
DRAM	O
is	O
a	O
volatile	B-General_Concept
memory	I-General_Concept
,	O
an	O
integrated	O
battery	O
allows	O
the	O
contents	O
of	O
the	O
DRAM	O
to	O
be	O
preserved	O
for	O
a	O
limited	O
amount	O
of	O
time	O
after	O
the	O
device	O
's	O
power	O
supply	O
is	O
interrupted	O
.	O
</s>
<s>
The	O
I-Ram	B-Device
has	O
the	O
advantages	O
of	O
a	O
fast	O
transfer	O
rate	O
and	O
access	O
time	O
,	O
no	O
moving	O
parts	O
,	O
a	O
lower	O
cost	O
than	O
traditional	O
solid-state	B-Device
drives	I-Device
,	O
unlimited	O
write	O
cycles	O
compared	O
to	O
flash	B-Device
memory	I-Device
and	O
it	O
does	O
n't	O
slow	O
down	O
over	O
time	O
.	O
</s>
<s>
It	O
is	O
not	O
physically	O
compatible	O
with	O
all	O
double-sided	O
DDR	O
RAM	B-Architecture
modules	O
using	O
heat	O
spreaders	O
due	O
to	O
tight	O
spacing	O
.	O
</s>
<s>
The	O
i-RAM	B-Device
is	O
bottlenecked	O
by	O
the	O
SATA	O
interface	O
,	O
which	O
limits	O
bandwidth	O
to	O
a	O
maximum	O
sustained	O
throughput	O
of	O
150	O
MB/s	O
.	O
</s>
<s>
DRAM	O
is	O
volatile	B-General_Concept
,	O
so	O
power	O
loss	O
will	O
cause	O
data	O
loss	O
.	O
</s>
<s>
The	O
i-RAM	B-Device
is	O
installed	O
in	O
a	O
PCI	O
slot	O
,	O
which	O
powers	O
it	O
while	O
the	O
PC	O
is	O
plugged	O
in	O
(	O
using	O
standby	O
power	O
if	O
the	O
PC	O
is	O
off	O
)	O
.	O
</s>
<s>
The	O
i-RAM	B-Device
supports	O
Unbuffered/Non	O
-ECC	O
DDR	O
200/266/333/400MHz	O
RAM	B-Architecture
modules	O
of	O
different	O
capacities	O
(	O
up	O
to	O
1	O
GiB	O
)	O
,	O
speeds	O
,	O
and	O
brands	O
for	O
a	O
maximum	O
capacity	O
of	O
4	O
GiB	O
.	O
</s>
<s>
The	O
i-RAM	B-Device
BOX	O
became	O
available	O
in	O
August	O
2007	O
.	O
</s>
<s>
i-RAM	B-Device
Box	O
's	O
main	O
difference	O
lie	O
in	O
its	O
half	O
height	O
5.25	O
"	O
drive	O
bay	O
format	O
that	O
connects	O
to	O
a	O
SATA	O
port	O
instead	O
of	O
the	O
PCI	O
bus	O
.	O
</s>
<s>
It	O
uses	O
a	O
standard	O
24-pin	O
ATX	B-Language
(	O
motherboard	O
)	O
power	O
cable	O
for	O
standby	O
current	O
(	O
Y	O
cable	O
supplied	O
)	O
and	O
a	O
standard	O
4-pin	O
Molex	O
power	O
connector	O
.	O
</s>
<s>
Most	O
pundits	O
expected	O
changes	O
to	O
support	O
2	O
GiB	O
RAM	B-Architecture
modules	O
(	O
possibly	O
DDR2	O
)	O
and	O
most	O
importantly	O
SATA	O
3	O
Gbit/s	O
.	O
</s>
<s>
The	O
second	O
generation	O
i-RAM	B-Device
,	O
GC-RAMDISK	O
,	O
was	O
on	O
display	O
at	O
Computex	O
2006	O
.	O
</s>
<s>
Rather	O
than	O
using	O
a	O
PCI	O
slot	O
for	O
powering	O
the	O
drive	O
,	O
Gigabyte	O
had	O
implemented	O
the	O
GC-RAMDISK	O
as	O
a	O
5.25	O
"	O
drive	O
unit	O
powered	O
from	O
a	O
4-pin	O
Molex	O
connector	O
.	O
</s>
<s>
The	O
drive	O
supports	O
four	O
DDR2	O
memory	O
modules	O
of	O
up	O
to	O
2	O
GiB	O
for	O
a	O
total	O
capacity	O
of	O
up	O
to	O
8	O
GiB	O
and	O
the	O
interface	O
supports	O
SATA	O
3.0	O
Gbit/s	O
,	O
which	O
doubles	O
the	O
transfer	O
rate	O
compared	O
to	O
i-RAM	B-Device
.	O
</s>
<s>
Although	O
this	O
version	O
of	O
the	O
I-RAM	B-Device
was	O
displayed	O
at	O
Computex	O
Taipei	O
2006	O
,	O
during	O
the	O
final	O
revision	O
it	O
lost	O
DDR2	O
and	O
the	O
higher	O
capacity	O
support	O
.	O
</s>
<s>
The	O
released	O
GC-RAMDISK	O
still	O
only	O
supports	O
up	O
to	O
DDR-400	O
with	O
a	O
total	O
storage	O
capacity	O
of	O
4	O
GiB	O
.	O
</s>
