SN45G V3

darkgen · 8 Feb 2006 at 05:14

Very quick clarify, for some inane reason after almost a year I pondered whether I could indeed OC any part of my current system, namely the CPU, but since this is locked at x11 I have always assumed no.

However, I started coming across a few posts on various forums about "SN45" that had a FSB of 215/220 and ... well....

I am right in thinking there is no way a V3 can have it's FSB increased beyond 200 right?

(Hence I'm truly at the limit of what I'm ever likely to get out of this current setup with this particular chip).

Cheers, Paul.

darkgen · 8 Feb 2006 at 16:24

Hmm how do you actually go about increasing the FSB above 200 on these boxs though? It will only allow me to toggle through 133/166/200 within the BIOS.

You're right that the chip is locked to 11, hence my interest in tweaking the FSB slightly above 200.

Cheers, Paul.

darkgen · 8 Feb 2006 at 17:35

Skip the below

Using "Expert" allows me to increment the FSB up, doh.

Now to hawk through the threads to see whats a safe OC for a Barton 3200+ and also what's possible

(any hints greatly appreciated)

Cheers, Paul

..

Hmm, I understand the FSB is set via Memory SPD, in my setup "aggressive"

Dual DDR at 8 - 3 - 3 - 2.5

This allows me to select a FSB of either 100/133/166/200, which in turn gives my 3200+ (which is locked at a multiplier at 11) so 11x200 = 2200Hmz.

Currently I have all my CPU/RAM/AGP voltage set to auto along with my CPU ratio (which is locked to 11 regardless of what i choose).

It's almost suggested you can tweak the FSB to 210/215+

Do I in turn need to manually set some of the voltages to then enable me yo change the FSB or...

Confused, Paul.

darkgen · 8 Feb 2006 at 18:12

Well so far it seems to be ok upto FSB 210 which produces a 2310Mhz, However this also means the memory runs at 210 (420) and it's timings slip to 2.5 - 4 - 4 - 9 when viewed within CPU-z.

Well I'm well happy after nearly a year I can possible squeeze another 100/200 Mhz out of the chip, I think I need to check up on what is possible with this SN45 before I start really playing.

Mainly about timings and voltage increases both for the mem and cpu.

i.e. before i melt my memory

Cheers, Paul.

darkgen · 8 Feb 2006 at 19:08

Well Prime seems to be quite happy running at 210 FSB. 52degrees tops currently.

Not knowing enough about memory timings or what kind of temps they are currently being exposed to is making me slightly anxious.

I'll probs tweak it again to 215 and maybe 220, on both occasions seeing how it fares with prime.

I've yet to even change/tweak any voltages yet on the CPU or RAM.

See how it goes

darkgen · 8 Feb 2006 at 19:42

Yeah i'm guessing since the CPU is locked to 11 the voltage can be left.
The memory is another matter though, It would seem I got a choice of either 2.7 or 2.8.

Seems rock solid at 210, but start getting POST's at 215. I think it's time for some 101 regarding loosening the timings

@ FSB 200 - 8 3 3 2.5
@ FSB 210 - 9 4 4 2.5

Shall I assume :-

@ FSB 215 - 11 4 4 2.5 (haphazrd I know)

Cheers, Paul.

darkgen · 8 Feb 2006 at 22:01

Managed to get to the desktop when I put the CPU voltage upto 1.75 at a FSB of 214 but falls over in the first segment of 3DMark05 (athough prime ran happily for 30mins plus, pushed the temp upto 54degrees).

I shall try the mem timings as suggested.

ta, Paul.