Still stuck at 138Mhz fsb

[pa1983]

Hello!
My goal is to overclock my Athlon 1,4 to at 1,53GHz or more. But I can’t get my bus higher then 138Mhz after that both windows me and 2000 refuses to boot up. I don’t think the problem it is the memory’s or the cpu because it works fine at 138x10,5 but at 139x10,5 windows doesn’t boot up, I get some kind of blue screen in windows 2000 and an error message about some config error. If I go even higher on the bus the screen gets black when windows 2000 tries to boot up and some text down in the left corner pops up but it disperse to quick fore me to read it. I know that the USB ports stops working after 138Mhz fsb on the KT266 chip so I disabled them because that could have been the problem but that didn’t work so now I am out of options so I need help. I can of cores alter my multipliers but I would like to get a higher fsb because of the extra performance boost. My motherboard is Soltek SL-75DRV. I have redstorm overclocking support on my motherboard and it test my system and according to it 150x10,5 should work but NO! CPU temp is 35C idle and 38 C at full load and case temp is 25 C. I also have 2x300W psu and my memory’s are Samsung 266ddr unbuffered and thy are suppose to run up to at lest 150Mhz fsb so I think it is the motherboard or windows that is the problem. I need help on this one now!

[Random Nonsense]

it could be one or more of your PCI cards dont like the high FSB..... try removing all but the graphics card and see if it will go higher, then re introduce the cards one by one.... that way you can figure which is the bottleneck and replace it if you feel its necessary.... my old PC was a perfect example of this 120mhz FSB/40mhz PCI bus fine, 120 FSB/41mhz PCI bus = no worky PC

[pa1983]

I was thinking about that to but 139/4=34.75Mhz and that shouldn’t be any problem but you never know. I have a soundcard, “Soundblaster live player 5.1” and a network card “realtekRTL8139(A) PCI Fast Ethernet Adapter”. Is any one of the know to be a problem at higher fsb?

[namelessone]

try removing some ram ... when i had 512, i couldn't get past 146 fsb so i removed one of the dimms (turned out to be bank 1) and left the other one in .. viola, shot up to 153 fsb without a hitch.

if you can, increase ram voltage and see if you get better stability.

[pa1983]

I don’t want to remove any ram but maybe I while try higher voltage. I have also been in contact whit a person that told me he had a network card that didn’t want to work at any higher then 138 MHz fsb, so it might be my network card.

[Hugo 59]

Welcome to the forums pa1983.

I can understand not wanting to remove your ram but until you go through the procedures of diagnosing the problem you can't fix it.

The first thing that you really need to do is find out the max of your chip. Do this by overclocking the multiplier, get the most out of it you can this will tell you the chips max with out the other components coming into play.

Now that you figured out what the chip can do you need to go back remove your pci cards and all but one stick of ram. You should be able to oc it to about the same MHz using the fsb if not try backing down your ram timings and or upping the memory voltage.

Once you get the same oc using the fsb start adding memory if you can get the same oc you know it's not the memory holding you back so lower it again and start adding pci cards until you find the problem.

Good luck.

[pa1983]

I cant back down my ram timings more. I think it could be the network card, sisoft sandra 2001 complains about to high pci latency and that the netwok card my hang on the bus. Sisoft sandra told me the same thing when I had the card in my old system. Can this have anything to do whit my problem? The network card is a realtek 8139A

[namelessone]

Hugo 59 gives a great overclocking 'diagnostic' outline to follow - you have to troubleshoot the problem before you can fix it.

going back to what you said about your network card, if you think it might be holding you back, take it out and see what happens. i would strip the system bare with only 1 ram stick, graphics card, and HD and build on that. if you can oc higher than your previous setup, than you know one of your components is holding you back. if you can't, at least you ruled out most of your choices so you won't lose sleep thinking about, "is it my memory? is it my NIC?".

and about not wanting to take out any ram ... i was in the same position also. it was either 146fsb w/ 512 or 153fsb w/256. i figured to hell with the 512 meg and i went with the extra 7fsb. even if i went with the 512 meg/ 146fsb combo, i knew that if i ever wanted to run a higher fsb, it all starts with removing a stick of ram and going from there. (now its my agp holding me back :mad: )

try what hugo 59 says .. its a good start!