Windows Error when Overclocking

[doydoy]

Im pretty new at this, so be kind please.

I had no problems getting my T-Bird 1GHz to 1.1GHz at 1.600 core voltage. It ran stable at 27 degrees celsius for long long time, but everytime I try to up the speed even the tiniest bit (like to 1.11GHz), I get a bunch of VxD and other Windows errors telling to run setup. The errors disappear as soon as I go back down to 1.1Ghz. Any ideas what's going wrong? Thanks!

 

[ALstonLoong]

why not try to higher your core voltage.? maybe help ....

 

[doydoy]

I thought that the lower the core voltage, the better. Are there special cases when you would want it to be higher? But anyhoo, I did try that. Nothing changed.

 

[ALstonLoong]

well for overclocking, when your cpu getting unstable under certain MHZ . It will be helpful if you higher the core voltage ...it will help you getting more stable.By the way wat mobo you using ? Because some mobo doenst stable while running at 133.

 

[doydoy]

Abit KT7. FSB at 110 Mhz x 10 = 1100
It runs perfectly stable at this setting.
Is it maybe because my motherboard can't go to higher FSB?

 

[ALstonLoong]

well maybe not maybe is your cpu bottleneck.Did you unlock L1 of your cpu?

alston

 

[doydoy]

Actually, I have no idea how/what it is to unlock L1 of the CPU

 

[TRD]

If you havent unlocked the L1 bridges...then how are you overclocking? I suggest you read the article on the main page of this website regarding the OCing of Athlon processors.....

 

[8602081]

To change the processor multiplier, you have to unlock the L1 bridge.
But you can overclock by changing the FSB without messing with the L1 bridge.

You might also want to check to make sure that your memory, video card, and hard drive might be causing this.

 

[Poof]

doydoy - it sounds like you have a mobo with the KT133 chipset which means that it doesn't much like FSB speeds higher than where you are right now! In fact, what you're running is a rarity as many can't get too stable over 105-107Mhz! Part of the reasoning is because although the FSB is normally "100Mhz", the "data rate" for that chipset is double (which is what the "DDR" stands for). Thus data is flowing at twice the speed of the FSB or at 200Mhz, into your CPU. Also, when you speed up the FSB too much, some of your PCI function cards may start to have problems with that.

The beauty of the T-birds/Durons is that you can OC just the CPU and leave the FSB alone and/or OC the FSB a little in addition. This is accomplished by doing a little modification to tiny exposed wires (or "bridges&quot on the face of the CPU. Specifically, the ones that control the "multiplier" (the setting to multiply the bus Mhz by, to get the CPU Mhz) are called "L1" on the CPU. For most but the fastest T-birds, the wires look like this:


L1 .::::

ie., they're cut (you may need a magnifying glass to see this)

The object is to reconnect them (with a pencil or conductive gloop), to look like this:

L1 .||||

That way, rather than get to 1.1Ghz by doing 10 x 110, you can get there by doing 11 x 100.

Doing this, as was suggested, often requires a slight increase in the voltage of the CPU. Many people will automatically increase the voltage for the higher OC, run it like that for awhile, and then find that they can drop it back to normal (or near normal) successfully.

 

[doydoy]

Oh I see. Thank you very much Poof! I'll give it a try

 

[Dan]

doydoy: You need to unlock the L1 bridges in order to increase your multiplier. That will yield a much more impressive overclocking result. You get marginal MHz gains by increasing the FSB and, as you have already discovered, increased stability issues.

 

[ErikaeanLogic]

doydoy: what everyone is referring to is illustrated here. Good luck!

 

[doydoy]

thanks for the help guys!
hey Poof, just FYI, I was just changing the settings a bit more and the FSB is at 115 and working fine!