Help with my first OC

[Lithium381]

Hi, i just attempted my first OC....I've got a duron 800 and a soyo sy-k7vta-b. I've unlocked the duron by way of the pencil trick, and it was successful(in that it unlocked it) I have the CPU running at 850 now(8.5x100)....it's stable as far as i can tell, did everything i normally do(check e-mail, stuff like that)...i played UT and got an average of 10fps faster(yay)....i upped my voltage from 1.6 to 1.73...which is fine, i went up about 1C in temp after this, i'll probably put the vcore down to about 1.62 or so. The main question is, i've got it at 850.....but i can't get it to 900.....it simply won't post, so this is the original reason i tried to up the voltage....when i put it back down to 850 it boots up fine. Since i can't see any major problem with either stability or temperature, what's the problem? Anything i should know as this is my first OC? Thanks!

 

[serialb]

To overclock an AMD processor, you have 2 options (or combination of both):

1) Increasing the clock multiplier (which is what you did)
2) Increasing the FSB

If the computer locks up at 9x, try something else. I would suggest upping the FSB by 12-13 increment first (112, 125, 133 etc) before touching the multiplier so you'll have a general idea how fast/stable you memory or motherboard can sustain.

Get to a point where your computer boots but OS is kinda unstable (eg. locks up during load up or gaming), then try upping the core voltage across your CPU.

Next do the same for other multiplier settings. Keep in mind that your optimum speed might NOT occur at your highest multiplier setting.

These are just the basics of the basics without any hardware modification. Better cooling, quality of peripherals also plays a major role in overall overclockability.

Of course, this is just my opinion. Some may have a different approach to look for their "sweet spot".

Hope it helps and good luck.

serialb

EDIT: Forgot the mention, SETI@home is a great tool to benchmark your CPU and test its stability. Check out my sig for more info.

 

[Wind]

At 900 Mhz, try this

1. Up the vcore to 1.75v
2. Set RAM timing to CAS 3.