More P5B secrets uncovered

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09-11-2006, 05:46 AM
dinos22

Quote:

Originally Posted by bachus_anonym

here you go, under EDIT part :), and yes, time sucked :(

i was wondering why my run was a bit slow >>>>

your RUN with Conroe
http://www.clockmehigh.com/cooler/sc...4_32M_BOOT.png

MY RUN WITH ALLENDALE
http://img243.imageshack.us/img243/3...e6300esmy0.jpg
09-11-2006, 05:59 AM
KiD0M4N

Quote:

Originally Posted by freecableguy

kidoman - I believe that every multiplier on the X6800 is a "default" multiplier - you can raise FSB as high as you want while changing the multiplier and it never overclocks the NB (NBCC always equals the FSB). This is one of the subtle differences that XE chips possess.

hmm this is interesting.....

so to set FSB records, best would be a golden X6800 @ 6x.

I wonder when someone will pair that with a 965 C2 chip.

620 ~ 630 should be doable I guess.

- Kidoman
09-11-2006, 06:37 AM
dr_sharp

Quote:

Originally Posted by dinos22

i was wondering why my run was a bit slow >>>>

Probably memory timings. Same fsb and multi I get 15:20ish @ 5-5-5-15 and 15:00ish @ 4-4-4-10.
09-11-2006, 06:50 AM
dinos22

Quote:

Originally Posted by dr_sharp

Probably memory timings. Same fsb and multi I get 15:20ish @ 5-5-5-15 and 15:00ish @ 4-4-4-10.

no you don't understand i am not directly comparing BA and my results as he has a conroe and i have an allendale.............i am saying that our scores are similar relative to those things.....................BUT the times should be much faster than what they are.........
09-11-2006, 02:48 PM
dr_sharp

Quote:

Originally Posted by dinos22

no you don't understand i am not directly comparing BA and my results as he has a conroe and i have an allendale.............i am saying that our scores are similar relative to those things.....................BUT the times should be much faster than what they are.........

OK, I get it LOL
09-11-2006, 09:10 PM
FELIX

...very great work!

It will interesting to compare a register dump at fsb:395 and other at fsb:405
Perhaps possible to find internal Latency with this...
09-12-2006, 05:39 AM
Tony

thats the next task, ultimately we need the option in bios though really.
09-12-2006, 05:48 AM
dinos22

Quote:

Originally Posted by FELIX

...very great work!

It will interesting to compare a register dump at fsb:395 and other at fsb:405
Perhaps possible to find internal Latency with this...

vozdra
if you tell us what you need exactly and how we can provide that do tell so that we can get cracking :D
09-12-2006, 05:49 AM
dinos22

Quote:

Originally Posted by Tony

thats the next task, ultimately we need the option in bios though really.

yes for sure :toast: bigtoe modded ones are always special :)
09-12-2006, 06:08 AM
Revv23

yeah wpcredit tweaks maybe? (is that the app or am i thinking of something else?)

Maybe this will be the birth of an 965 tweaker, it would sure help the cheap boards go far without having to depend on bios support...
09-12-2006, 06:39 AM
dinos22

Quote:

Originally Posted by Revv23

Maybe this will be the birth of an 965 tweaker, it would sure help the cheap boards go far without having to depend on bios support...

well we've got FELIX involved so this is a VERY good sign :banana:
09-12-2006, 07:27 AM
FELIX

it's not sure for the result,but we can try... :)

So made 2 registers dumps (cpu-z->last table->register.txt),
one at fsb:398 and one at fsb:402, don't change other,and send it at :

memset@hotmail.fr

I have no time to see that this evening,but I try for tomorrow...
09-12-2006, 11:46 AM
KingZer0

Nice finding so far guys :)

Let me ask something. Does this Latency Issue occurs on every i965 / i975 based motherboard?

Asus seem to go a very special in changing the strap on certain FSBs but what about the other motherboards like the P5W oder the Gigabye P965 ones?

Would be nice if someone could tell me somethign about it.
09-12-2006, 11:48 AM
bachus_anonym

Quote:

Originally Posted by FELIX

it's not sure for the result,but we can try... :)

So made 2 registers dumps (cpu-z->last table->register.txt),
one at fsb:398 and one at fsb:402, don't change other,and send it at :

memset@hotmail.fr

I have no time to see that this evening,but I try for tomorrow...

Done! Check your email, please.
09-12-2006, 11:56 AM
Kunaak

Felix, you have another register dump from me.
if you need more help, I am always willing to do what I can.
09-12-2006, 01:27 PM
toledo

Quote:

Originally Posted by Tony

http://www.bleedinedge.com/forum/showthread.php?t=23803

From the looks of 600fsb with C2 the new 965 chipset may have the 1600 strap, issue is performace may be poor. As soon as i get a board I will test.

For now let me know if theis helps you understand how Asus are gettting the board to clock

Quote:

Originally Posted by freecableguy

More to read:
http://www.bleedinedge.com/forum/sho...63&postcount=3

-FCG

Awesome info .... :toast: .
09-12-2006, 01:54 PM
fscussel

one question: when does the NBCC start to fail?? 2000mhz??
09-12-2006, 03:15 PM
Revv23

Quote:

Originally Posted by fscussel

one question: when does the NBCC start to fail?? 2000mhz??

I think that depends on strap settings, meaning NBCC could fail at 380fsb but work at 401 because of the more loose timings...
09-12-2006, 05:01 PM
dinos22

Quote:

Originally Posted by Kunaak

Felix, you have another register dump from me.
if you need more help, I am always willing to do what I can.

do we just do Regedit > File > Export?
09-12-2006, 05:16 PM
pcdoc1

Quote:

Originally Posted by dinos22

do we just do Regedit > File > Export?

CPUZ about tab - Register Dump...
09-13-2006, 04:30 PM
wittekakker

1 Attachment(s)

Standard:
Strap=1066
CPU=2660MHz
FSB=266MHz
Multi=10
NBCC=266MHz

On P5B FSB=333:
Strap=1066
CPU=3330MHz
FSB=333MHz
Multi=10
NBCC=333MHz

On P5B FSB=401:
Strap=1333
CPU=4010MHz
FSB=401MHz
Multi=10
NBCC=334MHz

Right?

And...
The CPU speed is dependant on FSB*Multi.
The NBCC is believed to be dependant on FSB speed and the relation of default and set multiplier.

But...
On the P5B: the NBCC changes when u hit 401MHz FSB. U fall back from 1066 strap to 1333 strap.

Would the attached formula be more complete or did I hit it totally wrong?
09-13-2006, 04:40 PM
caater

i think the original thought of NBCC = (def mult/set mult x FSB) is wrong because it's based currently only on sandra. which is bugged :)
to get to know real nbcc, you need to get hold of some intel nonpublic papers or measure clock externally somehow.
i have no idea how much such thing as a nb radiates but rf scanner could be used for some measuring :)
though it'll be most likely that at that range, it'll pick up only fsb freq..
09-13-2006, 05:22 PM
dinos22

caater the formula above your post should then do the trick
09-14-2006, 12:45 PM
Got Chow

Wow, this is a great thread! Definitely needs to be sticky. And it would surely help to change the thread title to something broader. This is like cracking the secrets to Intel OCing, very breakthrough stuff. Great job guys!
09-14-2006, 02:32 PM
Got Chow

This one is worth looking at too:

P5W64 booting a 6600 @ 6x multi @ 450FSB, and then clockgen to 500FSB. Hmmm....
Edit: The link would help... ;)

http://www.xtremesystems.org/forums/...d.php?t=115912

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