i bot an abit NF7-S and if i even raise my fsb by one mhz it gives me a blue screen on bootup and says windows canont boot up to protect me form some critical error. ???

ya, I runnin into alot of problems with this board to SF,had to instal OS twice I thot it was my stupidity but was lookin in Abit forums and seems that the board doesnt like all XP drivers.
I cant go byond175 FSB. Try the forums for now , d00d.

I am never going to recommend a mobo again.

It could be your ram SFB. I had a stick of Muskin 2700 that wouldn't go a inch past 166 on my Asus board even though it worked well on my I-will. Couple of things to try:
Try upping the VDD, AGP, ram and cpu voltages. I got the best results maxing out VDD. Setting the AGP at 1.7 (ATI recommendation). The ram at 2.8 (Still within Corsair specs). And inching up the cpu voltage as I needed to. At the highest overclock I was at 1.9. And ram timings were still 5-2-2-2. That was 185 fsb and a 14 multiplier. Dropping the multi and ram timings it will do 195 fsb stable. Ram is holding me back.

And don't trust SPD's. Set ram timings manually to manufacturers spec if you know them.

Edit: Something just occured to me...that's a Palomino your running isn't it? Has it been unlocked? You'll get better results manually unlocking it first.

SF Bob, give us the full details on your system please, need everything listed please.

That way we can look things over for you and see what you should be able to do about it

AntiM , all that you wrote was somthing I suspected but didnt really think it would of helped(upping voltages) gunna do that tonite. And thank you for suggesting this mobo to me I know that it will 0c like a badboy once I get it sotred out.

yeah antim you didnt recomend a bad mobo im just a noob, haha. my full specs are abit nf7-s, amd2000 t-bred, maxtor diamond max 9 hd, pny premium pc 2100 256mb ram(yeah i know its cheep). and gainward geforce mx 440 64mb. that is all the doo-hickeys i gots inside . but im thinking along thelines of its my memory that cant handle the higher fsb cause i can raise the multplyers just fine. actualy i had to lower the voltage from its defualt 1.6 to 1.57 to get my cpu to run stable at 2200 speed. kinda weird eh, haha no slak i have 2 atari 2600's i like space invaders the best.

Your PC-2100 ram is designed to run at an FSB of 133. If you want to run with the big dogs ........ you will need big dog ram!

DDR 2100 = FSB 133
DDR 2700 = FSB 166
DDR 3200 = FSB 200
DDR 3500 = FSB 217

My guess is you are running your cheapy 2100 ram out of spec and it is angry!

You need PC 2700 to run at stock speeds, and pc 3200 if you wish to OC.

If there is a chance you will buy one of the new 200 FSB Bartons when they appear (and you wish to oc it) I would get pc 3500.

hmm, my cheap hynix PC2100 ddr (2x512 chips) runs fine at 183 FSB Last time I ran sisoft sandra 2003, my memeory test was around 2.7ghz/s, it runs slightly faster than most PC2700 chips (According to the reference PC2700 in sisoft sandra)

You wanna buy my lottery tickets for me Hawken? You are one lucky sun-uh-mah-gun.

And nothing wrong with just raising the multiplier Bob. At least you can get a nice performance boost that way.

I would, antim, but everytime I get some, I barely get 2 numbers

Yes, fsb raise results in nice performance..more memory bandwidth

well i got it to boot up i had to raise voltage on everythign a little but its not runnin stable yet im tryin to raise voltage here and there till it is right now i just got a fsb raise up to 140mhz thats 1750mhz for my 2000xp(1666mhz)kinda week i know but im working with crap cooling here

Not bad, if its a pal core like mine. As my sig says, I can only get it stable at 1.83ghz...

nah i got the t-bred but stock heatsink and one smart fan 2 for exasut right now whats holdin me back is my ram it hink cause it keeps rebootin wen siasoft tests the memory bandwith

I just raised Voltages on everything up 1 notch, CPU core:1.675,
DDR SDRAM 2.7, AGP 1.6 I think its stable so far hope it doesnt melt never jacked up voltages really.

Well, Ive had great sucess with my hynix PC2100 (made by hyundai if im not mistaken) Able to get it to PC2700 speeds.

nice on the ram mine runs jut under 2700 speeds. i got a mobo chipset voltage adjuster shoudl i mess with that or no?i havnt yet

You could try upping the VDD a bit. It helps a lot in high overclocks. You're doing it right just inching it up. You just want to use what you need to get stable and not more. Higher voltages will run everything hotter and shorten the lifespan. And you definitely don't want to run voltage too high with a stock cooler and a single case fan. Especially cpu voltage.

I listed some pretty agressive voltages above. But I'm water cooled and have an abundance of case fans.

The asus a7n8x boards voltages aren't too high, each only goes up, I beleive to a max of 0.2 volts (ie. 2.5, 2.6, 2.7) Some boards go higher..

Ok, I see we are talking about an NF2 chipset mobo.

This should be a very easy overclocker.

First, your PCI/AGP divider will either include a 1/6 option for high 166 + HClock settings, (some call this the FSB, but it is the frequency used to set the CPU, not the one for the memory controler and ram which is the FSB). Or the PCI/AGP bus will be "Locked" at devault settings which realy makes that a non-issue.

If your PCI/AGP bus is not "Locked" then use these "ball park" figures, they are meant to give you a starting point, not the perfect solution;

133 - 150 Hclock = 1/2/4
150 - 180 Hclock = 1/2/5
180 + Hclock = 1/2/6

Second, even though your RAM is low-speed, you should be able to clock up the CPU independant of the RAM so set the RAM speed and don't use the SPD settings. Just set it at 133mhz and the pay close attention to it as you raise the Hclock for the CPU to make sure it remains unaffected.

Next, related to the RAM, when you increase the Hclock for the CPU will will be increasing the CPU bandwidth, unfortunatly you will see little overall improvment in performance because the memory bandwidth is limited. Because of this, I would stick to simple multiplier adjusttments to OC the CPU independant of all other components. Add a touch of Vcore voltage as needed untill you get as high as you can go and remain stable. Do not exceed 1.75V Vcore, it just isn't worth the aditional stress on the chip.

and all of this is for the abit nf7-s rev 2.0??
i tried ocing my barton 2500+,i got 170 fsb with 11.0x multiplyer, as soon as i would go anyhigher it would be stable at all, i have a 512 strip of muskin 2700,
so should i up the voltage??
and whats this with the ram/fsb ratio settings???
3/3 ,3/5.....esplain