Duron 750 can't get over 900

[yog]

I just got a Duron 750 from the "Overclockers store" and it was guaranteed to 950 (sorry I know this is a sin but it is foolproof). I can't get over 900. The multiplier won't go over 8.5, if I put it any higher I get a "Windows registry error" and if I run at a FSB of 105 windows is unstable. So right now I'm at 103 x 8.5 = 875.

Any ideas? How can I get it faster. I should just send the chip back, I've written them (Overclockers store) and they told me to send them a phone number to call that at. What am I doing wrong? Or is it me. By the way this is my first real thought out overclocking system.

Asus A7V, Duron 750, GlobalWin FOP 32-I, 256 PC 133 RAM,

[kwool]

I have a Duron 600 on an A7V, and was having trouble overclocking mine...What I did to solve my problem was bump up the I/O voltage. There are 3 settings: 3.35(pins 1 & 2), 3.56v (pins 2 & 3 default setting), and 3.69 (pins 3 & 4).

I am currently running it at 800 and stable...
Here are my settings:
I/0 voltage: 3.69
cpu external freg: 100
cpu core: 8.0
voltage regulator output setting: 1.725/1.75

Hope this helps....

[TechnoFile]

I read somewhere that messing with the I/O voltage can kill RAM. Is this true? Is it a leftover tale from early days of overclocking? Should I go ahead and crank mine up too?

[kwool]

Reilly (Feb 02, 2001 09:35 p.m.):
I read somewhere that messing with the I/O voltage can kill RAM. Is this true? Is it a leftover tale from early days of overclocking? Should I go ahead and crank mine up too?

I am definitely not an expert at this, so I was just offering what I did to solve my problem. I am not concerned with part failure(s) on my system. I bought these to fool around with. I am sure, OCing in general is "hazardous" to your system/parts. This is what ASUS has to say in their manual, about the I/O voltage:

"WARNING! Using a higher voltage may help when overclocking but may result in the shortening of your computer component's life. It is strongly recommended that you leave this setting on its default."

That is ASUS' disclaimer and mine as well....

But, here is what the description of I/O voltage setting reads:

"VIO allows you to select the voltage supplied to the DRAM, chipset, AGP, PCI, and the CPU's I/O buffer. The default voltage (3.56v) should be used unless processor overclocking requires a higher voltage."

All I know is that I tried all different settings, and the only thing that got mine running and stable was to adjust the I/O voltage.

Hopefully someone will respond that knows/has experience, with this issue.

[kat]

a little extra i/o voltage wont hurt the ram also work on your memory timming this help`s with the FSB