KT7A + Duron 800 overclocking

[garynjill]

I just built my first system, so I am a beginner at some of this.
I used a KT7A-Raid board, Duron 800, & PC133 SDRAM (256mb). I would like to try some overclocking. The chip is currently at 8x100 and voltage at 1.6 or 1.63
Should the bus be moved to 133?
Also, I tried connecting the bridges on the Duron with a pencil .
How can one tell if it's done succesfully?
In the Bios, I can choose User Defined for the chip and choose from the list of multipliers, but is that always available, or does that mean the chip is unlocked?
If you have any overclock recommendations/settings I should begin with, could you please post.

Thanks in advance,
Gary

 

[Jagators]

gary,

I would start out with changing your Multiplier to 10x100, and raise the voltage to 1.85v. For now leave the FSB at 100. Do some testing and if you are satisfied it's stable, go back and raise the multiplier to 11x100. Do some testing. If it doesn't post, drop it back to 10x100. Then change your FSB a little at a time checking for stability along the way.

 

[Mikaelb]

If you can change the multiplier freely and restart with the new multiplier in effect you have succeded in unlocking it. test by lowering it to several positions . I tried with the pencil trick two times and succeded partly . That is some multipiers worked some do not. I run my 800 now at 7X140 and 1,80 Volts . That is a sweet spot for me. (My cooler is letting the processor up to 58 deg C at heavy load.) Memory is slightly above 133/33 which gives a slight overklock of PCI and AGP but not more then is troublefree. Set the memory tweaks to maximum or close . Test cas 2 last since this may be too much. Test performance with sisoft sandra 2001 .
Motherboard maxes out around 150-160 Mhz . Good memory often at 150-160 too. If I go 143Mhz or more my drives want me to shut of DMA in Bios. This kills diskperformance so that is no good thing.

If yoy have a good cooler you may max out a a stable 7 X 133-145 at up to 1,85 V . It is not recommended to go further in voltage.
The DURON is pmping out 55 W power at this speed. on a thumbnails size . Take of the cooler and you will fry it in between 6 and 7 seconds.

 

[garynjill]

just some additional info,
I used the Radio Shack thermal paste on the core. I have a retail duron, so am using the stock heatsink/fan.
At it's current state of 800 Mhz (8X100) it is consistently at 32 celsius, and up to 33 celsius occasionally.

 

[Mikaelb]

Hmm 30 Ish is too low . Run a testprogg called

CPUstabtest.exe

archived name

stabilitytest.exe

Made by a guy from Finland.

just type in the name in the best search engine www.google.com or www.alltheweb.com

I run the temp progg at the same time. gives you a verdict in 30 minutes.

search the net for it . Then you will se low fifties. promise. The retail fan may not take you very far

keep temp below 60 C or so when overklocking.....