Originally posted by: jpeyton
9 x 265MHz
When I set the FSB to 266MHz or higher, it boots at the stock frequency.
I think the trick is to make the motherboard "think" the CPU requires 1066MHz FSB "stock." Tricking the motherboard involves altering the signals it reads from the BSEL pins.
Zap's Core 2 Duo E4300/E4400 overclocking mod for non-overclockable motherboards.
You read it here first, guys!
BSEL2/BSEL1/BSEL0
L/L/L 266MHz FSB
L/H/L 200MHz FSB
So, need to change BSEL1 from H to L. I'm thinking that means changing HIGH voltage to LOW voltage. An easy way to do this would be to insulate the pad on the CPU from the pin in the socket. Alternately, if you had to change an L to an H, you'd need to make a contact with a VCC pin.
BSEL1 is pin/pad H-30. Here's a picture provided very nicely by Intel for me.
This is a TOP DOWN view, so when you have the CPU upside down and are looking at the gold pads underneath it, you need to do this picture as a mirror image. The pad marked in red is BSEL1. You need to somehow do something to make it not make contact with the pin in the motherboard. Use a tiny piece of electrical tape, a touch of nail polish, whatever you can think of to do the trick. Voila, the board should now "think" the CPU requires 266MHz FSB, meaning it will POST at 2.4GHz.
http://home.wi.rr.com/zippyzap/computer/lga775.png
It would also be possible to alter voltages using this method, but there are a whole lot more pins to deal with, plus this board may not go high enough to make more vcore necessary. If it does, someone LMK and I can make a quickie guide for that.
DISCLAIMER: I do not own anything in socket LGA775. This information was gleamed from experience and from
Intel's Developer web site . I am not responsible if you blow up your computer.
Facebook
Twitter