Anyone know a (working) pin-mod guide for Socket M Meroms ?

^ ?



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I'm pretty sure that Intel isn't gonna let that info get out (or specifically made sure it couldn't happen) after the original Pentium M was found to have a possible pin mod.

/End thread

 

I couldn't find a Pentium M style mod for Merom, there is a voltage mod that allows you to lower the voltage considerably:

http://www.xtremesystems.org/forums/archive/index.php/t-137377.html

 

I had some bookmarks having info on this on my old HDD, which crashed.
I had a yonah which I pin-modded, but haven't tried the same on a merom.

I have seen some threads on Merom Pin-Mods, but there isn't any specific info on how to do it. Some say, it is the same as the Yonah Pin-Mod (BSEL and stuff), whereas some threads indicate that the pins need to be insulated, by either ripping them off, or applying some insulation coating, etc.



I thought it would be possible, if one has a 533MHz FSB Core 2 Duo (T5200/T5300).

I also remember reading somewhere, that if BSEL [2]/[1]/[0] are at H, then you'll get another 33MHz boost in FSB = 200MHz FSB total.

But some say that the L -> H, and the H -> L is possible only by insulating the pins.

 

I have a T5300 and I wanted to try to do it, but i stopped when I went to stick the piece of metal in the socket.
I was too scared of breaking my laptop, so I just quit.
Sometimes one should not mess with something when it works. I messed with my other laptop while it worked, and now its dead.

Its not worth it Andy, just wait for good deals on T7200, T7400 T7600.

K-TRON

 

Hopefully my NB will not die that soon........Last night i tried to get HLL to get 333 FSB, but no boot......I think PCIe clocks too high....

 

Possible, but I remember a discussion elsewhere that the Intel chipset recognized that something was amiss and downclocked the CPU to its lowest multiplier. Hence, the pinmodded CPU was stuck at 6x166 = 1 GHz. Whee.

 

I am still looking hard to find those forums that discussed about this.

I read the pin-mod thread in the Dell Forum. I think the multiplier can be locked at high using RMClock or Crystal CPUID.

 

read the following threads:
http://www.notebookforums.com/showthread.php?t=162173&highlight=e1505+pinmod
http://www.notebookforums.com/thread174106.html

But is works only with AMD/ATI chipsets. with intels, the laptop will lock itself at the lowest multiplier.

 

Oh yeah, thats for Yonah. I followed those links when I pin-modded my Yonah C M 420 to 2.4GHz (200MHz FSB) .

Haven't tried the same on a Merom, but I'll see if I can find the threads where pin insulation was mentioned.

 

A member of the ocforums.com states in his sticky that he pin moded his T7200 to run @ 2.4Ghz (i.e. FSB from 667mhz to 800mhz). I posted in the ocforums to enquiry about it and no one replied that what this guy has done is impossible. It seems that the Bsel[0] = H, Bsel[1] = H, and Bsel[2] = H would allow the 800mhz FSB.

This pin mod was on a gateway MT3705 laptop with the ATI X200 chipset. From the specs of this chipset it supports a 200 fsb. My current laptop is the Gateway MX3101 which has the same mobo as the MT3705. I did won't to test if it can be done because:
1- I don't have another laptop and can't afford to get a replacement in case I fry mine
2- My current CPU is the T2500 (667mhz) Bsel [2] [1] [0] = L H H. So I need to turn the Bsel [2] to high. I don't know how to do it without breaking the pin in my CPU (Once the pin is off, I think I will have to connect Bsel[2] to [1] or [0] directly in the socket.
3- I don't know what of the following is true: to get an H
a- breaking the pin in the CPU and connecting the Bsel to a Bsel with and H output.
b- connecting the Bsel to a Vcc without breaking the pin in the CPU.
c- connecting the Bsel to a Vcc with breaking the pin in the CPU.

 

hold on... SO it is Bsel [2] [1] [0] = H H H is POSSIBLE?
What is the chipset in your Acer?

 

i940GML
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I guess since the Celeron uses only one multiplier you didn't run in the problem of locking your CPU on it's lowest multiplier (i.e. x6) after pin mod

What was your setting? what bsel did you mod? to waht did you connect it?

 

I don't really remember. I did that about a month ago.

I think I connected BSEL [1] and [2], to the adjacent Vss/Vcc, or whatever that is. I think the info is in the datasheet.

 

Intel's datasheet for Yohan/Merom doesn't have any information about FSB 200 mhz (unless I'm mising something?)

From the above (and if I understand well) your pin mod combination for FSB 200 is ( please confirm):
Bsel[2] Bsel[1] Bsel[0]
-- H ---- L ----- H --



Andy I know that you won't lose anything by trying, but from all the posts I read a while ago, the pin mod on CoreDuo from 133mhz to 166mhz seem to work only with ATI Chipsets. Intel Chipset have tendency to lock the CPU on it lowest multiplier. I remember a guy testing his CPU on both an intel based laptop and on an Ati based one. The mod worked perfectly on the ATI one but not in the Intel one. On the intel based one (although he got the 166mhz) his CPU was running at 1.2ghz all the time. After several experiment he did (other people too), the disgarded the BIOS and the OS as the cause of the lock.

I'm welling to thing that any CoreDuo and Core2Duo can have its frequency and voltage modified via Pin Mod. Unfortunately, most stuff available on the net are based on modding desktop CPUs (since they are pinless; they are easy to mod). In addition, the information available out there is sonfusing about what is safe and unsafe to do

So have a go and let me know if it work (needless to say plz describe all the steps)... if it does I'll have a go myself to both pin mod to get a 200 fsb and volt mod to undervolt

 

I found this at the ocforums.com

 

Nice find naton.

I believe that is solely for Socket Ps.

LHL is reserved for M Meroms.

I still dunno how to go from L to H.

 

Dono either... Tried once but no boot....

 

H H L = 400
H L L = 333
But only for Socket P...

 

Has those been tested? (any links?)

The table I posted is suppose to be for both sockets P and M with socket M limitted to 200mhz

 

is there a combination to get 233?

 

There's only H H H left. I don't kow how this works, but if it's not tha combinatio, than no there isn't.