Previously stable cool Duron 700@950 now unstable... voltages, mult. or FSB?

[Teatowel]

I oc'd my Duron 700 to 950 (9.5*100) @ 1.775V via the multiplier on my ABit KT133 mobo. This ran stable for a couple of months, and now doesn't. The L1 bridges are still properly connected with silver conductive paint.

It gets as far as the monitor clicking onto my resolution on starting W98, and then the mouse pointer freezes. It now only goes up to 850 via the multiplier.

I then tried the FSB settings. It goes up to 864 (108*8) stable, but no higher..same problem. I can't even do anything above 900, even if I lower the FSB settings.

With the L1 bridges properly connected, is there any other reason for the previously stable (and cool - 45c under load) chip now to freeze?

As I have tasted life at 950, I want it back!!! Any help would be appreciated.

Oh yeah, one last point question... I only mess with upping the Vcore voltage.. should you mess with the setting below that one, ie the I/O voltage setting? No-one seems to mention it.

Cheers.

 

[Dark4ng3l]

I can see 2 reasons for this. mybe you hs/f is not doint as good a job as before and your chip is overheating or maybe you wore up the chip somehow.

 

[Teatowel]

Thanks for your reply!

The HSF is still doing a good job AFAIK as the temp still is in the low 40s. Not sure how I could have worn out the CPU... didn't take it above 1.775V.

Any word on the voltage question?

Cheers

 

[Teatowel]

Forgot to say.. I upped the VCore voltage all the way to 1.85 with no success... still locks at the same point.

 

[CEO]

Is your ram a good quality one?

 

[Neos]

I too had the same problem with my Duron 650. At one point it would clock to 8.5x100 ...can't recall the voltage. I kept playing with it ...trying to get it higher. Now it will not allow a multiplier past 8 ...so I have it at 8x106=848 w/1.65 v. I have tried it up to 8 v., but it would not boot at all.
It is almost like it forms a memory ...and if you try to push it in the wrong manner, or too high ...it defaults back to a lower setting ...and won't go any higher.
Mystery to me. Any ideas?
Neos

Duron 650@848
MSI Pro 2
128 Mg. PC133 Micron

 

[Teatowel]

My ram is PC133 CAS3 branded stuff, so it should be OK. But if I am only oc'ing via the multiplier, then it shouldn't matter anyway?

Any ideas about what to do with the I/O voltage setting?
I only change the core setting. Should I mess withthe other one too?

 

[Teatowel]

^^

 

[ErikaeanLogic]

Try lowering the core voltage. I know that it sounds crazy, but I've heard and read numerous accounts of people in the same boat as you, and they were able to attain higher clock rates by lowering the voltage to the cpu. It seems that we got this idea from overclocking Intel stuff that higher voltage = higher fsb, and that is true, but with the newer AMD wares this isn't always true. Give it a try and let me know how it goes.