FSB unlinked or linked + what ratio?

NachT · 21 Oct 2007 at 18:43

ey,

I've always had my FSB unlinked so I can set the clock on my RAM and CPU separately. Is there any gain from linking them together to go of the same FSB?

And what would be best for gaming, linked in sync mode, 1:1 ratio, unlinked?

Or is there no differance?

JimmahuK · 21 Oct 2007 at 18:59

Well since I've got my E6600 I've always believed its better going for a 1:1 ratio (Sync), eg; E6600 @ 3GHz, RAM 667MHz, E6600 @ 3.6GHz, RAM 800Mhz and so on, however i don't actually know if it increases performance or whatever.

Meridian · 21 Oct 2007 at 19:29

No advantage whatsoever - the last chipset that mattered on was nForce2!

On P35 RAM speed does matter (it doesn't seem to on 680i), but ratio does not.

M

weescott · 21 Oct 2007 at 19:43

makes a big difference when overclocking on the 680i. makes no difference on the P35.

citizen__erased · 21 Oct 2007 at 21:03

Are you saying i should be running my 680i board in sync 1:1? Am i losing performance by not doing this? I'm not really keen on the idea of overclocking the RAM.

WJA96 · 21 Oct 2007 at 21:11

The NVidia chipsets don't ever actually run unlinked (The ATI RD600 chipset runs in a true asynchronous mode), they just calculate a new divider on reboot, so the only drop in performance is from the reduced bandwidth.

citizen__erased · 21 Oct 2007 at 21:25

This is what i figured. Thanks for confirming.

NachT · 21 Oct 2007 at 22:36

weescott said:
makes a big difference when overclocking on the 680i. makes no difference on the P35.

My board is the 680i, should I be running linked 1:1 or unlinked?

WJA96 · 21 Oct 2007 at 22:55

NachT said:
My board is the 680i, should I be running linked 1:1 or unlinked?

Well, to run [1:1] you need PC8500 RAM just to run the CPU at stock, so you really want [LINKED] and [SYNC] which gives 2:1, but really it makes little difference.

NachT · 21 Oct 2007 at 23:01

WJA96 said:
Well, to run [1:1] you need PC8500 RAM just to run the CPU at stock, so you really want [LINKED] and [SYNC] which gives 2:1, but really it makes little difference.

ok, thanks bud

Just put it back to unlinked. and it's running at 5:6. So that's kool ?

WJA96 · 21 Oct 2007 at 23:08

NachT said:
ok, thanks bud

Just put it back to unlinked. and it's running at 5:6. So that's kool ?

It's as "kool" as anything else