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Intel BSEL & VID mod Guide - Page 49

post #481 of 521
Mind explaining the 3+1 thing a little for me?
On the upside, I finally did get it to hold 3.8V under load by setting the chip VID to 1.450(dug up the Intel paperwork online for the pinouts and vid spreadsheet). Testing with Prime right now(small FFT's), at 4.02GHz. Guess it's time to see what this chip can do with some extra juice.
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post #482 of 521

The cpu power phases are what convert the 12v motherboard power into a usable ~1.25v cpus run on.The more you have the more evenly the load is spread across the mosfets and chokes providing cleaner and more stable power, and helping reduce the heat produced by the mosfets. They are more important when it comes to multicore and power hungry chips. I'm not sure how power hungry your chip so it may not matter as much.

post #483 of 521
Ahh. So it basically sums up the mosfet count for the PWM power regulation. Every mosfet runs on a different phase, and the more you have, the more stable your output.
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post #484 of 521
what do we do if the bus speed is 533. i have a sony vaio tz i wanted to overclock. cant find what points to conntect anywhere
post #485 of 521
I have an E2140 processor, and D945gcpe mobo. I can't overclock using BIOS, nor do I have conductive ink pen.
Can I connect the pins using insulated copper wire???
PS. If you think it can't be done, just say "no", and a simple reason why. Don't beat me up.
I am a newbie and a sensitive person.
post #486 of 521
Quote:
Originally Posted by Karthik Nair View Post

I have an E2140 processor, and D945gcpe mobo. I can't overclock using BIOS, nor do I have conductive ink pen.
Can I connect the pins using insulated copper wire???
PS. If you think it can't be done, just say "no", and a simple reason why. Don't beat me up.
I am a newbie and a sensitive person.

I don't think you can.

Probably due to the wire occupying too much space under the processor.

I'd try to do it with aluminium foil and nail lacquer though. You join the pins using the foil, and then insulate the whole exposed foil with nail lacquer smile.gif

I'm gonna attempt this mod tomorrow. Seems like the 4CoreDUAL doesn't like high FSBs over the stock processor one... On a 1066 CPU it went up to 295MHz, on a 800MHz CPU it doesn't wanna cross 240. eek.gif
   
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post #487 of 521
hi guys,

which would be better? an e4600 OC'd to 3.2(1066) or an e8300(1333) stock? iv got a dell machine with a foxconn G33M02 mobo. running on DDR2 667's(333).

i have been running on the 4600 OC'd for a while now without any problems. i tried to OC the 4600 to 1333FSB but it did not work. the comp did not boot up. when i initially did the 800-->1066 OC i did a 1.4 vid mod. when i tried to bsel mod it to 1333 i did not do anything to the voltage. if i do a 1.45 vid mod instead of havin the 1.4 vid mod on this together with the 1333 bsel mod would it OC to 1333FSB?

also was wondering if it was possible somehow to OC the e8300 to higher speeds as bios is locked and chip is already a 1333FSB. couldnt find any help on this on the net so far.

cheers and thanks guys!
post #488 of 521
Quote:
Originally Posted by japan1 View Post

BSEL & VID Mod Guide


This mod applies to most, if not all, Intel socket 775 CPU’s that use a 800MHz or 1066MHz FSB.

What is a BSEL mod?


A BSEL mod allows a CPU to be run at a higher speed via hardware modification, without changing any settings in software (Either the BIOS or via software such as SetFSB). Most motherboards (See notes for more about this) use voltage/ground from the pins on a CPU to determine the CPU’s FSB. The idea of a BSEL mod is to physically connect pins on a CPU, to make the motherboard ‘think’ that the CPU has a higher FSB than it actually does.


For example, the Intel Pentium Dual Core E2160 CPU (1.8GHz) has an FSB at 800MHz, a bus speed of 200MHz and a multiplier of 9 to give the CPU its speed of 1.8GHz (200 x 9). Now, if the pins on the CPU are connected like a CPU with a FSB of 1066MHz, the bus speed would now be 266MHz, and the CPU would now run at 2.4GHz (266 x 9).

Why would I need to do this?


If you’re motherboard can overclock your CPU from the BIOS, you probably don’t need a BSEL mod. However, for motherboards that have no overclocking settings, like OEM motherboards, this is a simple method of overclocking a CPU. Alternatively, if your motherboard’s BIOS has difficulty overclocking, the mod is a simple way to increase the CPU speed.

How do I do the mod?


To connect the pins on the CPU you will need:


Conductive ink pen or copper tape

Electrical tape

Patience


Connecting the pins:


Refer to the diagrams in this guide to make sure you’re connecting the right pins. Then, mask the pins you aren’t connecting with electrical tape, this isn’t 100% necessary but makes the job of connecting pins much easier. Connect the desired pins using the conductive ink pen, go grab a drink and a sandvich, and by the time you get back the ink should have dried.

BSEL mod diagrams










VID Mod


The VID mod is similar to the BSEL mod, but instead of increase the CPU’s frequency, it increases the voltage; it is done in the same way as the BSEL mod.

VID mod diagrams (GREEN = COVER)







Notes


•This is still an overclock, so it would be wise to stress test using Orthos, Prime95 Etc.

•To reverse the mod, simple remove the pin connections.

•It may be necessary to reset the BIOS to apply the mod.

•Intel Speedstep still works with the mod applied.

•Some motherboards use the CPUID to calculate the CPU FSB and not the pins, this mod WILL NOT work on these motherboards.


Acknowledgements:


Dasparx

VR-Zone

Dude , do you have any idea about unlocking the clock multiplier , i have heard that some enthusiasts do it somehow , maybe by altering the chip , i'm totally unaware of all dat , but still , please let me know if you get to know about dat or if you already know dat
nd mah pentium e5500 has an fsb of 800mhz and the base clock ranges from 200 - 232 mhz , does this mean that weneva i'll BSEL mod my chip to get 1333 mhz , will i be getting a changeable bace clock from 333mhz - something around 350 mhz ?
Thnx in advance
and thanks for the guide u made , i found it da most helpful 1 around the intrnet !

Regards : Mohit Deshmukh
post #489 of 521
Hey guys, I'm a little bit confused. I tried it on a P4 630 before going on with the real thing. I used foil but it didn't work. My comp boot but it freeze.... even in the bios menu. What should I tried.
I have a 945 GTP. Is it because of the Mobo ?
post #490 of 521
Thread Starter 
Quote:
Originally Posted by trikte View Post

Hey guys, I'm a little bit confused. I tried it on a P4 630 before going on with the real thing. I used foil but it didn't work. My comp boot but it freeze.... even in the bios menu. What should I tried.
I have a 945 GTP. Is it because of the Mobo ?

There are many reasons it won't have worked, the most likely one is the multiplier on the P4.

Pentium 4's generally have very high multipliers, so changing the FSB even a small amount can make a large change in the end frequency of the CPU. Chances are, the overclock just wasn't stable so that's why your PC couldn't boot. It probably needed either more voltage, or more cooling.
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