O/C help please

[Wigwam]

Hi

i am running a Tbred-B 2100+ on an A7N8x, Twinmos/winbond BH5 PC3200 RAM, stock vcore [1.60], AGP at 66MHz
it is currently at 12*166 = 1992 and is fine
in the recent past i have run at 12.5*166 = 2075 and it booted okay but ran too hot so i bumped it back down awaiting better HSF
i wanted to try running at 200MHz FSB so today:

first i relaxed the mem timings to SPD [a measly 8-3-3-2.5]

i ran at 9.5*200 = 1900 and it booted fine
i then tried 10*200 = 2000 and initially it locked at the black XP load-up screen and from then on refused to post [locks right after telling me how much ram i have]

what is the cause of this and what can i do?
the cpu has sun at higher speed as i have gotten it to 2075 in the fast and it can run at 200mhz as i have run that with a lower multi [and both at stock vcore] so why will it not run at only 10*200?

all help is greatly appreciated.
with some better cooling i had high hopes for my O/C adventure but seem to have fallen flat already!

 

[DivideBYZero]

AFAIK on older NF2 boards 200Mhz is NOT a given.

 

[Wigwam]

it is a rev2.0 board, bios 1004; 200MHz is a marketing given for this board!
plus, as i said i got it running at 9.5*200...

 

[Wigwam]

ppl?

i know this should be chicken feed for the gurus here!

 

[deadseasquirrel]

How hot is "too hot"? I'm sure better cooling would help, but you might be able to bump the vcore up to 1.7-1.75 range and get it up at 10x200. I understand that may increase temps too much for 24x7 running until you get a better HSF, but give it a go for the short-term just to see if it works.

deadseasquirrel

 

[Sheriff]

Bump your mem v's up a smidjen.

 

[Wigwam]

okay - but what i still dont get is why i can get it to 2075MHz on a 166MHz FSB but only 1900MHz on a 200FSB?
i had assumed from the advice given here and elsewhere to O?C newbies like myself [ie push fsb down and multi upi as hgh as it goes etc etc] that is was the final combination of fsb/multi that depended on vcore, and not the induvidual parts????

 

[Sheriff]

It's more of a combo of Mobo+ CPU+ RAM+Settings + all other factors (PSU and what PCI Card and what slots they are in, Cooling of course) that equal the OC equation. Even the same setup can equal different results between 2 Rigs depending on the Software and OS that they run.