The right procedure to OC a C2 566 using a slotket?

dannydeleon

Junior Member
Sep 22, 2000
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Hi guys/gals,

Time for an upgrade. I have been running a 300A overclocked to 450 the last 2 years and I thought it might be time to upgrade. I just ordered a C2 566, a slotket (generic, I think) and additional RAM. MY question is: Do you adjust the voltage on the slotket first and then adjust the bios of the MB? Please enlighten me on this one or point me to a URL that has the steps involved. I've got an ABIT BH6 rev1.0 with the bios upgraded to the SS version. I'm just aiming to achieve 850Mghz. The C2 566 is a retail box version, if that makes a difference.

Thanks in advance,
Danny
 

Nick Stone

Golden Member
Oct 14, 1999
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dannydeleon

You'll need this info. A MS6905 slocket (best choice) should be left at the default settings. Voltage changes on the slocket make no difference on a BX6 or BH6 MB. All voltage changes must be made in the soft menu of the Bios. You might get 850 mhz at 1.7 volts. It's 50% chance. You can skip the 1st part of the "Bios Trick" below since you already have the correct Bios.
Consider replacing the retail H/S and fan. Anand has a June article showing that the Alpha heatsinks are best with the golden orbs 2nd. (Other good choices exist) Also consider Artic Silver or Circuit Works Silver heatsink compound. Keep reading and asking questions if you get stumped.

THE ABIT BIOS TRICK; for Abit BX6 and BH6 era motherboards.
Before you do anything else, Enter your Bios (enter ?Del? key while the computer posts) and write down your existing Bios settings or use ?print screen? to print them out. Sometimes you have to exit and re-enter the Bios several times to ?Print screen? each page.
1: First of all, download the desired Bios ?*.bin? file and flash program ? ?awdflash.exe?.
2: Execute the downloaded ?*.exe? Bios file to expand it for use.
3: Format a diskette with the copy system files command or go to the Dos prompt and enter: format a:/s (Don?t take a chance on an old floppy that you formatted 5 years ago!)
4: Copy the ?*.bin? file you got after executing the ?*.exe? Bios file to the floppy.
Write down the name of the .bin file: example -- Bh6_kg.bin
5: Copy the ?awdflash.exe? program to the floppy.
6: Reboot the computer.
7: Now enter your Bios again.

Step 1: Set your CPU Bios settings to default. (Don?t run overclocked or out of spec.)
Step 2: Set voltage to ?user defined? and then set your voltage to the maximum you have available; usually 2.3 volts for CPUs with 2.0 volt defaults. (older celerons) or 1.7 volts for Celeron IIs for example.
Step 3: In the Bios Features Setup; set the boot sequence to: ?a,c,scsi?. if necessary,
and enable " Boot Up Floppy Seek" if necessary, to boot to your floppy.
Step 4: Save settings and restart.

Now the computer will start from the floppy.
When you are at the ?A: prompt? in Dos, you are ready to flash the Bios.

1: Type ?awdflash? and the flash program starts.
2: Type in the name of the .bin file (i.e. BH6_kg.bin) - or the one you wrote down previously; and press ?Enter?. The Bios flash screen comes up and provides you a blank to enter the ?*.bin ? file.
3: The flash program will ask you if you want to save the old Bios - answer ?yes?!
4: Save the old Bios to the floppy with any name you like - I use "old.bin" - and then press ?enter?.
5: After the flash program has saved the old Bios it will ask you if you want to program the Bios - answer ?NO?.
6: The flash program will now terminate and return to your floppy drive.
What you have done now is to save your old Bios - and you now have the opportunity to flash back to the previously Bios again. When you do the Bios trick as a single command line with all the switches, you don?t have the opportunity to save the Bios at that time.
Now you are ready to trick your Bios voltage settings!
7: The trick is NOT to start the flash program as you did previously: let?s say you have downloaded the ?kg? Bios and now you have a file called Bh6_kg.bin on your floppy - Right ?
8: Type exactly as follows for the BH6 ?kg? Bios: awdflash.exe bh6_kg.bin /py /sn /cc
9: Another example ? for the BH6 ?jj? Bios: awdflash.exe bh6_jj.bin /py /sn /cc
Now press ?enter? to begin. It takes about 30 seconds. Later press F10 to exit program when all activity on the screen stops.
10: Restart and go into your Bios settings - now you will see that the higher voltage is now the default. If the ?new default? is 1.7 volts, you will now be able to reach 1.9 volts!!! Don?t forget to reset your Bios settings before booting into Windows or you might find Windows installing ?Com ports?, etc. that you don?t want installed.



 

rigor2

Banned
Sep 18, 2000
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good chips will run at 1.65, poorer chips will probably need 1.85v and the bad ones won't, or will require 1.9+ volts and probably still be flakey.

Shoot for 1.85V or drop the fsb.
 

JawaJedi

Senior member
Sep 21, 2000
421
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I don't know about the BH6, Danny, but i have an a-bit be6-ii and using a generic slotket i could only get the voltage up to 1.75 because a-bit set a limit (even on the new bios) but when i used the a-bit slotket!!! and set the default voltage up i was then able to get past 1.75 because the generic slotkets generally don't have voltage adjustments like the better name-brand slotkets (i.e. the abit, asus, or msi ones)

-jawa