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Overclockk Lenovo Desktop with e2140

post #1 of 16
Thread Starter 
Need some help guys!
I just picked up a lenovo 3000 k100 57075477 for dirt cheap and really want to overclock the e2140 chip as I heard it is a very good chip to overclock.

When I went into Lenovo's bios, there was no option for overclocking! This should have been no surprise to me as OEM manufacturers usually cripple things.

Does anyone know if I can flash the MB? Or is there a practical software mod?

THANK YOU SO MUCH in advance!.
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post #2 of 16
Thread Starter 
Bump.
Thanks!
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post #3 of 16
OEM mobos are usually hard-locked in the BIOS. Maybe even more... So as we have always been saying... no, you cannot overclock an OEM computer.
    
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post #4 of 16
Despite what legoman said, you can overclock an OEM computer.
You don't really need BIOS to overclock. There is a Windows-based program called ClockGen that people use to overclock their laptops. However, there's something about an ICS number that you'll need to get it working.
But I can't help but wonder - how do you plan on managing the excess heat?
    
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post #5 of 16
Thread Starter 
From what I understood, overclocking the E2140 won't create too much excessive heat if I CO it to say 2ghz...

I am new to OC'ing so correct me if i'm wrong.

THANks
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post #6 of 16
A modest OC with no extra voltage will only produce a small amount of extra heat.

I suggest using SetFSB or Clockgen to OC. It will be very benefical to know what PLL/clock generator chip you have. It will usually be a small square chip near one of the silver crystal occilators. The writting on it will be very small, but if you can read it and get the modle off of it, it could save you a lot of trial and error.
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post #7 of 16
Thread Starter 
Quote:
Originally Posted by Blameless View Post
A modest OC with no extra voltage will only produce a small amount of extra heat.

I suggest using SetFSB or Clockgen to OC. It will be very benefical to know what PLL/clock generator chip you have. It will usually be a small square chip near one of the silver crystal occilators. The writting on it will be very small, but if you can read it and get the modle off of it, it could save you a lot of trial and error.
I opened up the pc but i'm not really sure what i'm looking for, there are a lot of square chips on the board. Where should the silver cyristal occilators be and what do they look like.

Lastly but kind of number am I looking for?
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post #8 of 16
Well first of all, running ClockGen or other software won't add any excess heat, because you can't adjust voltage. The voltage is what adds the extra heat.

Also, good luck getting it stable with one of those programs. If stock FSB is 200, you'll be LUCKY to be able to hit 220 stable. The reason why is because it also overclocks your PCI bus, PCIe bus, RAM, EVERYTHING. That's bad. Us overclockers will lock all of those other buses and limit our RAM down, to achieve a higher CPU speed.

Good luck, that's all I've got to say. I've personally managed it with ONE computer successfully (Celeron D 3.2GHz @ 4.5GHz). But it took DDR500 (@ DDR466, stock slots were 400), and NO PCI cards in the slots to achieve it, and all my onboard stuff disabled.

Even my sig rig, if I limit my RAM, lock my PCI and PCIe buses, Clockgen just freezes it up past 230MHz FSB.

Also, if you push it too far with Clockgen, be prepared for a permafried Operating System. I know, I've been there and done that.

My advice, leave it alone and consider it a lesson learned. Next time, build your computer. OEM's are NOT meant for overclocking. PERIOD.
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post #9 of 16
Wait a minute here! Sorry for double post if I did so!

There IS ONE WAY I can think of to do it successfully. But it requires conductive ink, and some patience . Google for BSEL mod for your CPU. That will force your motherboard to believe your CPU is actually a higher FSB (in your case it should up it to 266MHz from 200MHz giving you I think 2.4GHz...if 1.8 is stock).

That is ONE way you can SUCCESSFULLY overclock your CPU.
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post #10 of 16
Quote:
Originally Posted by pioneerisloud View Post
Well first of all, running ClockGen or other software won't add any excess heat, because you can't adjust voltage. The voltage is what adds the extra heat.
Please support that statement, preferably with peer-reviewed information.
Increasing clock speeds will increase heat output even if voltage is kept constant. Higher clock speed yields more calculations per second which requires more switching of transistors means more current draw, which, when voltage and efficiency are kept constant, will release more heat.
Your statement is similar to saying that an idle processor will operate at the same temperature as a processor under load, which, as all overclockers have experienced, is simply untrue.
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