Overclocking a TBird 800/A7V

[allsops]

Ok, I've got a T-Bird 800 on an A7V... however, this A7V already came with the dipswitches n such. I've been trying to follow toms overclocking guides, but to no avail. I've flicked the dipswitches to what looks like the correct places (as far as I know)... I've switched my board over to Jumper Mode and even turned my voltage up to 1.85 in my BIOS. What am I doing wrong/missing?

 

[JOJO]

did u unlock the cpu?
ie connect the L1 bridges with graphite pencil?

 

[Bubba]

Yes, connecting the L1 bridges would help a little bit.
You should also use the jumper settings on the internet not in the manual.

 

[allsops]

Hmmmmmm, ok, no, I havn't unlocked the cpu. I'll try doing that today (I just need to get one of those pencils). Thx

 

[Lowlypawn]

All u need is a #2 pencil. You can also u defogger paint from Pep Boys but it’s a little tricky.
Good luck & Cya.

 

[allsops]

Ok... So after I unlock it... it should all work ok?

I mean, the fact that my A7V already has the jumpers n such in place means I don't need to do any of the mods that Toms mentioned?!?!?!?

Also... once I set it to Jumper Mode, I have to change the voltage settings manually... correct?

Bare with me.. I'm an overclockin newbie here... any other things I should watch out for?

thx

 

[JOJO]

as long as all the jumpers are in the right place it should work fine.

when i had my a7v and tb 800, i ran it at 950, 9.5x100
with core voltage at 1.85

it ran perfect.

may take a couple of tries to get the pencil markings right though from what some people say.
Maybe i was lucky, i got it on first attempt.

 

[allsops]

Ok Ok ok... I got the L1 bridges done n stuff... however, I can't get it to start up any faster than 900mhz... it crashes windows when I goto 1000. Any ideas why? thx

 

[JOJO]

sometimes certain chips can only go so high.

no matter what i do, mine will not go to 1000 either.
Even on the kt7a-raid board i just got....which is really nice btw...

the highest i got was around 990...

oh well, i'm running at 933 right now and my voltage is 1.75

 

[Bubba]

Increase your voltage.

 

[Guest]

I've got my 800 to 1G, with voltage still on default. You should upgrade your bios, promise and 4 in 1 to the latest versions, available from ftp.asuscom.de, for better stability. Take a real good look at those dip switches, and make sure that you really have got those bridges closed, there may be some minor reason why you are not getting more than 900. If everything is good, you might have to accept it as your max...still, its faster than what you paid for.
Keep an eye on your temps in bios...you might need some extra cooling if they are getting near the 60's.

DESIGN TEAM

 

[Guest]

I hate jumps and dips, thats why I bought an ABIT!
Dose your Tbird-800 have 100 or 133 fsb(cpu's core speed)?
Are you using 100 or 133 sdram?
Set the volts to 1.85.
You can OC your fsb & memory also.
On Abits you can set your dram clk to match your fsb or = your fsb+pci clk.
Set this to approx 10-20mhz higher then your mem's stock speed.
My micron 133 cas3 sdram runs at 149mhz.
Abit has a fsb plus adj.(0-28). Set this so your fsb is approx 8-15mhz higher then your fsb's stock speed.
You will have to play w/ these until your sys boots & runs stable.
Divide your cpu's oc'd speed by the fsb to get your multiplier (eg:133/1000=7.5).
I have a Duron 600 w/a 100fsb and 133 sdram.
I set my dram clk to hclk+pciclk & my fsb/pciclk to 112/37.
This sets my dram at 149mhz.
My fsb plus is set to 0, so my fsb is 112.
My multi is set to x9 (112*9=1008mhz)(Not bad for a chip that sells for $50!)
There's lots more perf. bumps in cmos.
Good Luck!

AMD OC'rs Kick Ass!! 😉