another Athlon OVERCLOCKING question

[Sarrkazztic]

On my power color pvk7 board i can set up front side bus speed with dip switches...can I just set the switch from 100 mhz up to 133 to over clock the 650 to 866 mhz? I want to ask before I try anything that could fry either mobo or processor....

[Train]

133 should be for you ram speed, what does you mobo manual say?

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[kallikru]

You can "just set the switch", but there is no guaranty whatsoever, that it will work. It depends on your processor not overheating, on your devices accepting this higher speed, on your RAM being able to follow this speed....and a lot of other things too.
Before you venture into this rather exciting area I suggest you take a closer look at some of the OC-guides found around the net.

Here are some: http://www.hardocp.com/
http://www.overclockers.com/

Search for "overclock" will give thousands of hits.

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Karl,
Denmark
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"..and may The Force be with you too..."


[This message has been edited by kallikru (edited 05-19-2001).]

[DrMDJ]

Ah, if it were just that easy...

The first problem you're facing is whether the CPU you have can handle that kind of overclocking. Overclockability varies from cpu to cpu, it depends on the particular core in the one you have. Most 800s though are not going to be overclockable to the 1064 mark.

If by some chance you are lucky with the cpu, the next issue is whether the motherboard supports 133mhz and remains stable. Just because a MB says it supports 133FSB doesn't mean it really does so reliably. This is less of a problem than it use to be though.

Then there's another problem. When you change the FSB to 133 you are also changing the speed of the PCI, AGP, ISA and memory busses. The memory bus isn't a problem. But the others... At an FSB of 133 by default these would be grossly overclocked. Unless your board/bios gives you the control to adjust these down adequately there is no chance your system will run or run stable.

I'm not familiar with your board specificallly or the adjustments available. But as a general rule my guess is you might be able to overclock your system using FSB changes at best up to 112-115mhz (with some voltage changes), and more likely something under 110mhz.

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[This message has been edited by DrMDJ (edited 05-19-2001).]

[MiseryQ]

DrMDJ is right... Try to keep it around 110 to 115 mhz...

....

Ok just did some research... What Processor do you have? I hope either a Classic Athlon (slotA) or a Duron... The KX133 chipset will not support ThunderBirds... Also Via chipsets except fot the kt133A, don't hold bus speed to good, it varies, another reason you need to keep it low...
I have no problems with my 700T-Bird@805mhz with the kt133 chip... You may need to set the latency of the memory in the bios to 3 to make up for the faster bus speed also...
And coolers make a big difference... I have a silver Orb but a super Orb, with two fans, made for the 1gig processors would be even better...

Good luck...

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[This message has been edited by MiseryQ (edited 05-19-2001).]

[Sarrkazztic]

here is a link on the motherboard I have http://www.compgeeks.com/details.asp?invtid=PVK7
...I have already set up 1 machine with this board using a Tbird slot A and am going to be setting up the 2nd with a classic Slot because my other Athlon board the MS-6191 does not seem to support the classic processor for some reason

[falcon2000]

It's been a few days now since your last post and I don't know how you're doing w/ the O/Cing. But here is my 2 cents:

If your Classic Athlon is not Multiplier-locked AND if your mobo allows changes in the Multiplier settings; then, you can o/c the CPU by increasing the Multiplier alone (i.e., withoiut increasing the FSB.) This way you can O/C the CPU without O/Cing the RAM.

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[This message has been edited by falcon2000 (edited 05-24-2001).]

[DrMDJ]

If multiplier variations can be made (ie. the prcessor is not locked), then usually the highest mhz speeds will be reached by combinations of varying both the multiplier and FSB (and of course voltage). You need to play around with varying both (up/down) and see what gets you the most and is still stable.

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[Sarrkazztic]

I got the computer to boot when I switched the clock speed to 112mhz instead of 100 but no go at 133mhz....it seemed stable for a while but then I started getting various crashes so I set it back to 100mhz and loaded all my programs on and did everything I normally do with a computer..ie surf, play games and watch dvd's I am perfectly happy with the 750mhz for now so I am not going to pursue the overclocking for now....I have a slew of amd k6-2 300 processors that I am going to order mobos for and play around with that combination....I do not want to take any chances of messing up my main computer...

[DrMDJ]

Like I said: 112-115 is about the norm. As for the k6-2 300s, figure about 380mhz on those. Enjoy!

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