Pin-mod a 2.4ghz (northwood) celeron

[One Bull]

I have a Intel celeron , single (northwood D1) core, 2.4ghz.
Has anyone seen a pin-mod for it?

[JLK03F150]

What motherboard are you using? Does it natively support 133MHz cpu's?

[four4875]

i think hes lookin for a pin mod to raise vcore. im not so much of an intel person tho so i dont know if there are any.

[One Bull]

What motherboard are you using? Does it natively support 133MHz cpu's?
I'm using a Asus P4S533-MX mobo
It supports FSB speeds til 533 MHz and the multiplier is 4X... So, yes it can


And yes four4875, I'm doing the pin-mod to get higher voltages

[KJSatz]

There is a pin mod for it to increase the voltage. I just can't figure out what it is anymore.

http://www.vr-zone.com/guides/Intel/Northwoodmod/

That was where the pinmod was, but it's 404 Not Found now. Reference from an Anandtech thread about overclocking I found by googling this:

celeron 2.4ghz 533 volt mod

[One Bull]

There is a pin mod for it to increase the voltage. I just can't figure out what it is anymore.

http://www.vr-zone.com/guides/Intel/Northwoodmod/

That was where the pinmod was, but it's 404 Not Found now. Reference from an Anandtech thread about overclocking I found by googling this:

celeron 2.4ghz 533 volt mod

Ohw wait!!! I just looked at CPU Z to check wether the bus speed was actually 533, but it's @ stock 400! :S sorry guys... So I'm searching for a 400 pin-mod :$

[JLK03F150]

AD5 AD6
BSEL1 BSEL0 Function

L L 100 MHz
L H 133 MHz
H H RESERVED (166 MHz)
H L 200 MHz

The signals are pulled high (H) on the motherboard and internally pulled low, as needed, by the processor to 'select' the required FSB; so an internally open, or 'no pin', equals high (H). e.g. a 100 MHz FSB processor will have both AD5 and AD6 internally connected to Vss to pull the motherboard signal L. Removing the AD6 pin, or isolating it by other means, will cause that signal to go H (just as if the processor itself had no internal connection) and select 133 MHz for the FSB.
You need to isolate the BSEL0(AD6) pin to change the FSB from 100 to 133.
AE1 AE2 AE3 AE4 AE5
VID4 VID3 VID2 VID1 VID0 VCC_MAX
0 1 1 1 0 1.500
0 1 1 0 1 1.525 Default vcore
0 1 1 0 0 1.550
0 1 0 1 1 1.575
0 1 0 1 0 1.600
0 1 0 0 1 1.625
0 1 0 0 0 1.650
0 0 1 1 1 1.675
0 0 1 1 0 1.700
0 0 1 0 1 1.725

One first observes what the pin configuration is for their processor (it's Vcore) to ascertain which pins are already configured H(1) and L(0). Then pull, or isolate by other means, any L pins that you wish to change to H and jumper to Vss any H pins you wish to change to L.

Go to the intel developer's site and download the P4 data sheet for pin layout.
If you wire wrap vid0, vid1, & vid2 you should raise the vcore from 1.525 to 1.650v.
Sorry all the Tabs where changed to spaces, makes it a little harder to follow.

[TheNewbie]

Like JLK03F150 said isolate the BSEL0 by means of insulating the pin. I've heard of using clear nail polish to coat the pin or a very small piece of wire insulator. If you are not worried about it not working or going back to 400fsb you could just break the pin off if you are completely certain it will work.

[TheNewbie]

Here is a pic of the pin-out:

[One Bull]

Here is a pic of the pin-out:

I'm sort of confused, on your picture A1 and B1 have no pins, but my cpu has no pins @ A1 and A2 :S

I also checked the intel developers site, but it's the same diagram as yours... And I am positive I didn't rotate it or something :P
On the front-side it says: celeron 2.40ghz/128/400, so we're talking about the same processor ;)

[One Bull]

Here's an image:
50872

[JLK03F150]

TheNewbie's diagram is looking at the top of the cpu, not the pin side.

[One Bull]

Please help, I'm not brave enough to do the pin-mod if I'm not certain it's the mod for my processor

[JLK03F150]

I flipped the image. This is the pinout looking at it from the pin side. Does that help?

[KJSatz]

I'm not 100%, but the red pin should be the one you need to modify (black dots for counting purposes).

http://img305.imageshack.us/img305/3701/procedited8ss.jpg

[One Bull]

I flipped the image. This is the pinout looking at it from the pin side. Does that help?
yeah that helps :) thanks

[One Bull]

I'm not 100%, but the red pin should be the one you need to modify (black dots for counting purposes).

http://img305.imageshack.us/img305/3701/procedited8ss.jpg
ok thanks guys :) I'll do the mod :), first the voltmod and check wether it's able to hit the 133.. If it does I'll do the 133 mod

[TheNewbie]

Good Luck and .........:welcome: To the Forums.

[One Bull]

Well I did the pin-mod :D shee, that was hard... but I think I've got it now :)
Here's a picture, it isn't very sharp because it is so incredibely small...
50875

I twisted the wire after the first pin to be sure all pins will make contact

[One Bull]

Good Luck and .........:welcome: To the Forums.
Thank you :) but that is my second welcome :beer:

[One Bull]

I'm trying memtest right now, but I don't think it's not happen... I'm at 120 now, and I am getting errors in test 3...
temps seem to be just fine..
I was at 115 @stock voltage
I can't go 116 / 119 because of the pci frequencies...

So now I'm just wondering if I should remove the wire or not...
I was completely stable @ stock voltage

[One Bull]

Sandra lite is showing me a gain of: 139 mips and 8 mflops
at the new voltage with the same clockspeed

[One Bull]

should I take the <2% performance gain over a ~20% loss in life span?