Abit BH6 & Celeron II

[kalimbadeluna]

Hi!

Yesterday I replaced my good old Cel. 366 (@550MHz) on Abit (jumperless) BH6 ver 1.0, newest bios.
My new Cel. II 600 works fine up to 750MHz. But I can set the voltage only beween 1.3V ~ 1.7V. With the old CPU 1.3V ~ 2.3V was possible.
To run stable at 900MHz it obviously needs 1.8V or 1.85V. In the CPU database some guys with Abit BH6 reached 900MHz with 1.8V but how... the bios doesn't give me this option.

Can someone help me out?

THX

[burly]

I am having similar problems I have a celeronII 700 cCo can't get to post @ anything but 700/66. slocket is set to auto so I can Oc I don't know the bios ver. It won't even get viedo let alone post anyhigher than 66 MHZ default voltiage

[Sempei]

When I flashed my BH6 to the new bios (SS i think), I had voltages above 2.0 and multipliers up to 12. Check your bios version, you may need to flash a new one

[markedmundb]

How to do the Abit Voltage Trick

1) ensure your PC is set to a stable speed (Spec is good- as long as you know it won't crash halfway through flashing)
2) In the Softmenu II, set Voltage as high as it will go (1.7V for cB0 Cellys)
3)Get your BIOS boot disk, ensure it has the latest BIOS (or the BIOS you want to flash to)
4) Restart the computer with the boot disk in the floppy drive.
5) type awdflash bh6_ss.bin /cc for the bh6_ss.bin BIOS image.
6) If youve already got the latest BIOS, then you don't need to back up the BIOS. (If you're upgrading from a previous version- then you might want to save it)
7) Press Y on the option to Write new Bios (or whatever it says).
8) Restart the PC and you should have up to 1.9Volts to play with.

Oh, and ensure you've got the right BIOS for the right revision of Mobo. SS is for Rev.1.0, SP is for Rev.1.1.

If you'd rather not open your case to find out what version of Board you have (It's on the label on the first ISA Slot), look at the existing BIOS string (The code under the Press "DEL to enter Setup) the last two letters (LN, QN, SS, SP) are the BIOS revision. Write them down on a piece of paper, and when you go to download the latest BIOS, check to see what revision of board you have by looking at the the lists there.

I was sort-of told off by a senior member for providing a BIOS hack the last time I did it, so be careful.

[burly]

did bios flash to newest ver. got celeronII 700 cCO to post @ 874 right off 83FSB 1.9V would not load windows though loads windows @ 788 75FSB 1.9V will try to get to oad windows @ 874 will keep you posted. I might need better cooling

[burly]

update cely 2 700 boots to windows stable @ 833 81FSB 1.9v wish i could get higher will try later

[kalimbadeluna]

Sorry,
problem solved. Looked at first at the ABIT german language version site. There is no ...SS bios but on the english language version I found it now.

THX

[kalimbadeluna]

Help again!

Did now all steps of the instructions above. Flashed NEWEST bios ...SS for my Rev.1.0 BH6. Works as fine as the older one.

But I can't reach more than 1.7V, no chance. May my socket adapter from FC-PGA to Slot1 be the problem?
On POST I can see the bios rev., it's ...SS but no additional voltages. Is there any special trick I may have missed?

Bye

[Tim-]

The VID pins on the MB are programmed by the CPU or in your case, by the slotket. The MB uses this information to provide the proper voltage for a given cpu family. The reason you have 1.7v tops is because the slotket is telling the MB that should be the default. With the Abit slotket I have, changing the voltage jumper from auto to say 1.9v will cause the MB to offer up to 1.9v as the default voltage range. The bios still controls the voltage, but the upper limit will be higher. If your slotket has voltage selection jumpers try using them, if it doesn't, you need one that does.

good luck1

Tim

[markedmundb]

Been there, tried that Tim.

My BH6 will not give up control of Voltages to my Iwill Slocket II. Might be different with an Abit Slocket... If I try to play with the jumpers, it'll whir all the fans/hard disks and then just stick, the only way of switching off, are to pull the plug from the back.

As for the folk with 700s... Have u to tried to burn them in? Seeing as they are almost at the top of the tree already, performance-wise, getting them to 100FSB can be tricky. As someone's tagline from the old forum said "There are no guarantees, only averages". Try to burn them in (std speed @ 1.9v) over a long period of time(72 hours minimum).

But I can't reach more than 1.7V, no chance. May my socket adapter from FC-PGA to Slot1 be the problem?
On POST I can see the bios rev., it's ...SS but no additional voltages. Is there any special trick I may have missed?

Was it set at 1.7V initally? Did you use /cc at the end of the awdflash line? I remember the first time I did it, I didn't know about the /cc so I wondered was it working properly?

I'm not too sure if it only works on a re-flash with the same BIOS. Try reflashing it again

[Tim-]

Not all Abit boards work with the bios flash method. I don't have a BH6 so I'm not sure about it. I know the BF6, BM6, ZM6, and VH6 don't since I have played with all of them. My VP6 goes to 1.9v with cc0 cpu's and I haven't needed over 1.85v on it so I don't know about it either.

[kalimbadeluna]

Finally it works!

So now I checked ALL again, Voltage set initially to 1.7V and reflashed the ...SS bios with the parameter /cc (didn't knew that especially THIS was so important).
What I can say: that was it, I can reach voltages up to 1.9V :).
And (that's not so amazing) I need it. My Cel. 600 only works properly @ 900MHz with "Majesty"-cooler and 1.9V.
But now the CPU seems to feel good @900MHz under these conditions.

THX to all who helped me here.

[Taco]

this is somewhat easier
just run the prog and set the default voltage
works fine for me, can go to 1,9 on my "old" BH-6

http://gamma.nic.fi/~hippie/