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View Full Version : G.Skill 1GBFC - my own test


Micutzu
01-13-2006, 02:28 AM
G.Skill 1GBFC is a 2X512MB kit with Samsung TCC5 chips using Brainpower BP808 PCB certified for DDR550 (PC4400) at 2.5-4-4-8 with 2.7-2.9V. As the FX series seems to be slowly phased out this becomes the cheapest kit from G.Skill's Extreme class, class wich contains only Samsung-based memory, wether it's TCC5, TCCD or UCCC.

Further you'll see my own overclocking tests done with a kit of this memory, ran on this platform:

DFI LanParty nF4 Ultra-D rev. AD0 / BIOS 623-3 official
Venice 3000+
Silverstone ST46F 460W
WinXP SP2

I've chosen two sets of timings that seem to work best with the 1GBFC: 2.5-3-3-7 and 2.5-4-4-7. The chips on these modules are binned in such a way that can't take 2-2-2-5 not even at DDR400, and 2.5-4-3-7 or 3-4-4-8 don't help at all to clock higher.

DDR550 with 2.5-3-3-7 at only 2.7V, piece of cake :). Memtest passes without problems.
http://img207.imageshack.us/img207/5151/memtestddr550253378aq.th.jpg (http://img207.imageshack.us/my.php?image=memtestddr550253378aq.jpg)

Performance test at DDR550 2.5-3-3-7 ... RightMark Memory Analyzer v3.61 is a great tool

http://img205.imageshack.us/img205/643/rmmaddr550253377jy.th.jpg (http://img205.imageshack.us/my.php?image=rmmaddr550253377jy.jpg)

SuperPi 1M with 2.5-3-3-7 ... at DDR604

http://img77.imageshack.us/img77/7121/spi1mddr604253374pl.th.jpg (http://img77.imageshack.us/my.php?image=spi1mddr604253374pl.jpg)

Furthermore, 2.5-4-4-7 works very clean at DDR610, still keeping 2.7V

http://img72.imageshack.us/img72/662/memtestddr610254476oy.th.jpg (http://img72.imageshack.us/my.php?image=memtestddr610254476oy.jpg)

The performance at DDR610 in RMMA is very close to the one at DDR550 with tighter timings:

http://img211.imageshack.us/img211/7745/rmmaddr610254479lh.th.jpg (http://img211.imageshack.us/my.php?image=rmmaddr610254479lh.jpg)

And the memory limit, SuperPi 1M at DDR626 with 2.5-4-4-7.

http://img81.imageshack.us/img81/6562/spi1mddr632254477nq.th.jpg (http://img81.imageshack.us/my.php?image=spi1mddr632254477nq.jpg)

bullit
01-13-2006, 04:21 AM
Micutzu, they(gSkill) should give you a job,you deserve it,congratulations for your ram too:toast:

kakaroto
01-15-2006, 02:30 PM
Very nice work, i like those screenshots :)

1GB FC is also with Samsung TCCD.

Micutzu
01-15-2006, 03:01 PM
This is from an older batch that uses TCC5, now indeed FC is TCCD.

kakaroto
01-15-2006, 03:03 PM
This is from an older batch that uses TCC5, now indeed FC is TCCD.

one from the oldbox, also TCC5.

http://www.xs4all.nl/~famchow/Memory/Gskill%20PC4400FC/memtest_300MHz_437.JPG