Yonah FSB Pinmod maybe?

[lawrywild]

Well, I was looking @ the datasheets and.. (I was thinking along the lines for laptops rather than desktops btw...)

I found:


here's the Yonah pinout that I joined together from the datasheets...



If BSEL(1) is H @ stock 166mhz, then maybe you can short BSEL(1) with BSEL(2) to make them both H..

which would make H,H,H which "SHOULD" = 200mhz?


I'm no pro here but maybe someone like Hipro should have a look at it


DONT GO TRYING ANYTHING I HAVE NO YONAH TO TEST MYSELF ATM EITHER!!!

[wwwww]

Well, I was looking @ the datasheets and.. (I was thinking along the lines for laptops rather than desktops btw...)

I found:


here's the Yonah pinout that I joined together from the datasheets...



If BSEL(1) is H @ stock 166mhz, then maybe you can short BSEL(1) with BSEL(2) to make them both H..

which would make H,H,H which "SHOULD" = 200mhz?



I'm no pro here but maybe someone like Hipro should have a look at it


DONT GO TRYING ANYTHING I HAVE NO YONAH TO TEST MYSELF ATM EITHER!!!

We already got 200FSB boot with jumpers.

[irev210]

i think he means laptops

I wish it would work

[G H Z]

Ya man do it

[kyosen]

This topic is already raised by Mats,
http://www.xtremesystems.org/forums/...ad.php?t=88297

And in my experience, pulling down BSEL[0] to L=VSS(GND) gives
FSB200MHz boot up with 166MHz jumper setting at i975Xa-YDG.
So I think that BSEL[2:0]=LHL is FSB200MHz setting as mentioned by Mats.

TAM says that i975Xa-YDG may have FSB266 setting.
Preliminary test has already done by OMEGA.
Refer the post in TAM's BBS for detail, please...yeah though in Japanese language.
http://u-san.net/c-board/c-board.cgi?cmd=one;no=778;id=
Under normal air/water cooling, the system can't boot up with "J4: 2-3 / J5:open" setting.
OMEGA tried it under dry-ice cooling, and found something.

Now I got tired with my very FSB restricted CPUs...
I think that FSB limitation is owe to mainly CPU's character

[ibby]

@ kyosen

have you tried your cpu in a board which we know exceeds the 225/240 fsb that most people are stuck on ?

- just to knw if it is cpu or mobo.

[kyosen]

> have you tried your cpu in a board which we know exceeds the 225/240 fsb
> that most people are stuck on ?
--
My results on i975Xa-YDG so far:
T2600(ES, stepping:4) goes upto about 246MHz.
T2600(Retail, stepping:8) goes upto about 235MHz.

I tried two i975Xa-YDG, and felt almost no difference.
So,

> just to knw if it is cpu or mobo.
--
I think that it's NOT owe to motherboard itself...
I need to test with another memory chips than Micron fat D9, maybe.

[ibby]

thanks for that ..
i hope we can figure a way around this

[lawrywild]

well... if L,L,L is 266mhz, then why doesn't someone try that in the AOpen if they're stuck on a FSB wall...?

[Warship]

That's what i'm wondering too.

[oohms]

sounds like the B1 dothans

[ibby]

sounds like the B1 dothans

maybe...

[stummerwinter]

I tried to BESL0 to VSS (Ground) at my T2400, but no boot at a Gigabyte 945...

I´ll gonna try H-H-H too...

H-H-H didn´t work either, so went back to 166 MHz...

[lutjens]

The pinmod will not work on Calistoga (945) chipsets...the chipset will not recognize the strap...

Desktop chipsets like 975 would probably work, but they usually have jumpers for forcing 200 FSB anyway.

[Freez]

Sadly my Dell Laptop with a Yonah has a 945 chipset....

[stummerwinter]

With L-H-L the rig doesn´t boot...

With H-H-H booting, but no difference...

[WeedJunk]

Would be grate for laptops though

[R101]

Sorry to bring this thread back up, but I wanted to know if anyone had done this on a laptop. I have a 133FSB Yonah in my laptop, and 166FSB would be a nice gain .

[Terminal 8]

Actually, I have an idea. It's stated that L,L,H is a configuration for 133, which I have (T2050). How would it work out of I pulled BSEL[1] to H (L,H,H) and achieved 166?

I'm curious, and just itchin' to try it!

[ziddey]

Unfortunately it all depends on bios' ability to recognize bsel and set accordingly. If someone were to be familiar with bios and can compare similar bios of different board and modify, then we'd be in town.

It's a shame dell i6000 uses 915pm, which has been known to not like overclock due to intolerance for floating pcie/links. Not sure about alviso laptop parts, but the desktop counterparts did handle 200 and if I'm not mistaken also 266, so mobile counterpart should be able to as well with right coding to support straps and keep everything in check. I'd love to be able to somehow drop a merom into my laptop, that still has a decent but EOL'ed platform and upgrade from this aging dothan.

[intel_developer]

Just got my new Toshiba A135-S2386 (Intel T2080 1.73/533, ATI 200M chipset) pin modded to running at 2.16/667. First I tried isolating BSEL[1] to pull it HIGH the hard core way (breaking the pin off). In the old intel BX days this was how you pulled a CPU socket pin HIGH. When I did this nothing happened, still at 1.73/533. Since 667 requires BSEL 2:0 set to L-H-H the T2080 cpu is setting BSEL[0] to H. I did not think it would work, but since I had nothing to lose, and had already removed the BSEL[1] pin, it was a simple matter to jumper BSEL[0] to BSEL[1] using a wire bridge in the socket to give me the L-H-H. When I booted it up, BINGO, it worked like a champ. And the multiplier stayed at x13 thankfully so no problem with being locked at x6 on this chipset at least. I think the trick is that you must do BOTH: remove the BSEL[1] pin on the CPU to isolate it and use a wire bridge to jumper BSEL[0] and BSEL[1]. I do not think it will work if you only jumper the BSEL[0] and BSEL[1] as others have found, but I did not try that. Anyway good luck if you try it on your 533 yonahs. It should work on any of the new NAPA intel chipsets that support 667.

MaxFSB

[hifiking]

Well, I tried this now with a T2050. Isolated BSEL1 and jumped BSEL1 and BSEL0.

667FSB, but stuck at 6x, tried all several insulation methods and many jumpers. No good.

Then I took everything out (back to normal), and still 667FSB and 6x. So now I am stuck with a T2050 at 998mhz what so ever. No app can change that 6x to 12x. Whats wrong?

[wittekakker]

power saving -> mulitplier 6
run wprime and it should go up to 12.

[Frank M]

Bump
Now that my warranty expired, I'm thinking of trying the bsel mod on my laptop
(Hp nx6310, with a CelM410=Yonah, 11×133).
133 = L-L-H
166 = L-H-H
So then shouldn't I just insulate BSEL1&0? Is linking necessary?
Seeing mixed results here... anyone else who has succeeded?
Also, any tips for voltmodding?

[Zanr Zij]

Bump
Now that my warranty expired, I'm thinking of trying the bsel mod on my laptop
(Hp nx6310, with a CelM410=Yonah, 11×133).
133 = L-L-H
166 = L-H-H
So then shouldn't I just insulate BSEL1&0? Is linking necessary?
Seeing mixed results here... anyone else who has succeeded?
Also, any tips for voltmodding?

Your chipset (940/943 series) does not support FSB 667. So don't try to pin mod FSB your laptop.