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Overclocking a Motherboard ???

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David

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Jan 20, 2000, 3:00:00 AM1/20/00
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Hello,

I need some advice on overclocking a motherboard. I have a
VT-580VX MMX Socket 7 Motherboard from an unknown manufacturer. It is
currently running a Cryix 6x86mmx CPU at 200mhz. Is "rated" to run
75-233.

I'm told that I can run a AMD 400 CPU on it. The Motherboard has
jumper for...

CPU Clock Gen. 50,55,60,66,75 MHz
Vcore Freq. 2x, 2.5x, 3x, 1.5/3.5x
Vcore Voltage 2.5v , 2.8v, 2.9v, 3.2v, 3.3v, 3.5v

Is it feasible to run a faster chip? Are there any potential
hazards that I need to be aware of? Such as cooling? How would I set the
jumpers for this? Obviously, I have no clue about overclocking and most
of what I've read on overclocking sites and forums deal with OC'ing the
CPU, not the motherboard.

Please reply to Group and Email.

Thank you,
David


Bob Smith

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Jan 20, 2000, 3:00:00 AM1/20/00
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You cant overclock a Motherboard!!

--
"Ambition is a poor excuse for not having enough sense to be lazy."
David <dpo...@imediaone.com> wrote in message
news:CVyh4.96$X26....@cmnws01.we.mediaone.net...

Firefly

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Jan 20, 2000, 3:00:00 AM1/20/00
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I have heard that the K6 II can run on a socket 7 board and it has an
internal setting that if you run it a 2 x 66Mhz it will run at 6 x 66Mhz
i.e. 400Mhz

Maybe someone can confirm this ???

Adam.

David Maynard

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Jan 20, 2000, 3:00:00 AM1/20/00
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The newer ones do, yes. All K6-III 400s do as well and are a much faster
chip. YOu're *much* better off with the K6-III if your MoBo supports
that too and a later BIOS should if they supported the K6-II.

Dacaur

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Jan 20, 2000, 3:00:00 AM1/20/00
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well, there a few of ways you could go about it. there is not diference
between overclocking a motherboard and overclocking a cpu, they are one and
the same thing, tho not often referd to as overclocking the MB,

anyway. ehre it is

1. First thing you will want to try is changing the multiplyer. im assuming
that "1.5/3.5x" means the setting is the same for a 1.5x and a 3.5x
multiplyer (Vcore Freq. as you have it) thats fine, it just means the MB
will automaticly detect if you have a 100MHz proccesor or a 233. so chances
are if you set that to 1.5/3.5, you will get 233MHz.

2. if that doesnt work you can leave the multiplyer at 3x and change the fsb
from 66 to 75 for 225MHz.

3.if one of those isnt fast enuff for ya, and assuming your processor can
handle it, you can try changing the FSB to 75Mhz with a multiplyer of
1.5/3.5x for 266, . if you go the 266 rout make sure you have ample cooling
though....

good luck!

Firefly

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Jan 20, 2000, 3:00:00 AM1/20/00
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What would a motherboard have to have to support a K6-II / K6-III ?

I have an old Socket 7 board with a 2.2v setting and I can set the FSB to
83.3Mhz. So can I get a (6x83.3) 500Mhz K6 ?? does the motherboard manual
have to say it supports the K6 ? or are the settings enough ?

Adam.

David Maynard

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Jan 20, 2000, 3:00:00 AM1/20/00
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CPUs need initialization sequences to set things, such as the cache for
example. That's one reason AMD has some little program for CPU tweaking
but I forget off hand what it's called and where you can get it as my
motherboards are K6-II and K6-III aware.

The manual need not say it but check the MoBo's web site to see if there
is a flash upgrade for it. It probably has one.

And yes, if you up the FSB you would get 500. The multiplier doesn't
change 'cause of the FSB; they're independent settings.

jug

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Jan 20, 2000, 3:00:00 AM1/20/00
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AMD has great info on their website. Not all mb support the k6-2 or
III. Look under processor and motherboard to see if yours is listed
there. The promise of the k6 2 and III is very appealing. But be
forwarned just any socket 7 motherboard cannot use them. You could
probably use the early k6 and some k6-2 but you might have problems.
Far better to use pricewatch and find a good super 7 motherboard and
either a k6-2 450 or above or the k6-III at 400 or above. But now you
have reached an intresting point. A celeron and MB combo should be at
or near the same price. Depending on the memory and case you have
this could be a more effective upgrade. If you are using sdram pc 66
it could probably be reused on the celeron. If you have pc 100 you
open the door to serious overclocking. I know this served only to
open possibilities and perhaps to confuse, but do some research and go
for the greatest value. HTH

David

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Jan 21, 2000, 3:00:00 AM1/21/00
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Thanks for the help Guys<Gals>

This is basically what I'm trying to figure out. Can I run an AMD
k62(3)-400 CPU on this board. Problem being that I don't know the
manufacturer of the board. The Manual only says VT580VX MMX. Any ideas
on how I can ID the board?

I found on Pricewatch.com a FIC VA-503A MoBo w/ AMD K6II/400 for
about $140. It appears to be a 233 board with a 400 chip on. So, if I
can do the same to mine. I can save about $100 bucks...:)

I'll look at the AMD site to see if anything rings a bell about my
board.


Thanks again, Any other help or ideas is greatly appreciated.
David

jug <jugo...@mindspring.com> wrote in message
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David

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Jan 21, 2000, 3:00:00 AM1/21/00
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Great! I found my original motherboard box.

The board is an FYI(Full Yes Industrial) VT-580VP
(http://www.fyi.com.tw/e_via580.htm).

I'm writing to the Manufacturer to see if they have anything to say
about it. Don't expect much of a response though. Their website says
that board is being phased out.

So, Anybody know where I can get more info on this board about running a
faster chip?

BTW, I noticed a problem in my reply-to address that I have corrected.
So, if any of you replied to by email, thank you for trying..:)

David


David <dpo...@imediaone.com> wrote in message

news:VpRh4.150$RN1....@cmnws01.we.mediaone.net...

David Maynard

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Jan 21, 2000, 3:00:00 AM1/21/00
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David wrote:
>
> Great! I found my original motherboard box.
>
> The board is an FYI(Full Yes Industrial) VT-580VP
> (http://www.fyi.com.tw/e_via580.htm).
>
> I'm writing to the Manufacturer to see if they have anything to say
> about it. Don't expect much of a response though. Their website says
> that board is being phased out.
>
> So, Anybody know where I can get more info on this board about running a
> faster chip?
>
> BTW, I noticed a problem in my reply-to address that I have corrected.
> So, if any of you replied to by email, thank you for trying..:)


Okay, well, I looked it up. On the software download page the "menu" zip
file is your MoBo jumper settings. It's got a 2.5V core setting
available which is close enough to the K6-III's 2.4V that it should work
with that. It's only got 2 multiplier jumpers though but I *think* the
K6-III will default to the third jumper active so the 2x would be 6x,
unless they've got it tied to a signal source. Normally it would be
unconnected though, so it *should* work. The last problem is the BIOS
and, unfortunately, they do not give any information on what the BIOS
upgrade listed is *for*, just that there is one dated 4/22/99. It might
or might not support a K6-III.

Looks like a nice little MoBo if it'll run the K6-III as it's not
*super* old. It's got UDMA-33 for example. USB, LS-120 support, and even
says ACPI.

If you need to get another one I might be interested in that one for an
old pentium I got lying around here 'cause I could use some old junker
72 Pin SIMMS in it.

David

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Jan 22, 2000, 3:00:00 AM1/22/00
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Thanks David and Pas(Yang),

David
I think I understand "some" of what you said..:) I think I'll give
it a try.

I happen to have two of these boards. So, depending on how things
turn out, I might be able to send you one. Can't make any promises
though. So, if you come across a good deal, jump on it..:)

Pas
I'd love to get a BX board. But, money is tight right now and all
the new boards I've found are ATX and require 168 pin DIMMs. So, that
would require me to buy a case and memory.

Thanks for the heads up on the FIC board. Since this machine is
impersonating a server on a LAN, I don't think I can afford to mess
around with a flaky board...:)

Thanks again,
David Poling
pas <p...@thuntek.net> wrote in message
news:n8hh8s0bj1mcm747s...@4ax.com...


> On Fri, 21 Jan 2000 04:39:17 GMT, "David" <dpo...@imediaone.com>
> wrote:
>
> >Thanks for the help Guys<Gals>
> >
> > This is basically what I'm trying to figure out. Can I run an
AMD
> >k62(3)-400 CPU on this board. Problem being that I don't know the
> >manufacturer of the board. The Manual only says VT580VX MMX. Any
ideas
> >on how I can ID the board?
> >
> > I found on Pricewatch.com a FIC VA-503A MoBo w/ AMD K6II/400
for
> >about $140. It appears to be a 233 board with a 400 chip on. So, if I
> >can do the same to mine. I can save about $100 bucks...:)
> >

> The FIC VA-503A is junk with endless headaches. I know, I own two of
> them. Can't give them away. Why not spend $140 on a BX motherboard
> (MSI 6163 Pro) and a 366 PPGA and operating at 550. Forget VIA
> chipsets, nothing but trouble.
>
> ck yang

David Maynard

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Jan 22, 2000, 3:00:00 AM1/22/00
to
David wrote:
>
> Thanks David and Pas(Yang),
>
> David
> I think I understand "some" of what you said..:) I think I'll give
> it a try.
>
> I happen to have two of these boards. So, depending on how things
> turn out, I might be able to send you one. Can't make any promises
> though. So, if you come across a good deal, jump on it..:)
>

Hope it works for ya. As for me, I got no real 'plans' per see, I just
like to collect old stuff. I use 'em to run test bed software and as
much as I like overclocking I also kinda like making 'something' out of
it. At the moment I'm trying to find *some* use for a 286 notebook I
still got. hehehe. Nice thing about it is it *is* paper sized, albeit
1.5 inches thick. Got some DOS internet software for it but my test ISP
was down. Makes me wonder if *they're* running on old junk. <g>.

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