Overclocking my IBM PC

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Archived from groups: alt.comp.hardware.overclocking (More info?)

After all those years I never had problems with my IBM PC, but now I
think that 4.77 Mhz is a little bit slow.

How can I overclock a 4.77 8088 IBM XT , how much performance will I
get?

Please help.

 

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Archived from groups: alt.comp.hardware.overclocking (More info?)

Carl Dau wrote:

> After all those years I never had problems with my IBM PC, but now I
> think that 4.77 Mhz is a little bit slow.
>
> How can I overclock a 4.77 8088 IBM XT , how much performance will I
> get?
>
> Please help.

There's a good chance you could go as high as 10Mhz, which would more
than double performance, but as with all overclocking efforts you should
aim lower initially.

You will need to purchase a selection of crystal oscillators, say from
6Mhz to 10Mhz in 1 Mhz increments. Start by replacing the 4.77Mhz
crystal with a 6Mhz (you'll need a soldering iron), then thoroughly test
system stability. Repeat the process, increasing the crystal frequency
by 1Mhz each time until stability tests fail, then back off to the
fastest stable crystal.

HTH

P2B

(The OP probably has tongue in cheek, but that's exactly how we
overclocked way back when)

 

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Archived from groups: alt.comp.hardware.overclocking (More info?)

"Carl Dau" <lord_melton@yahoo.com.ar> wrote in message
news:15f2f483.0404202014.300a968e@posting.google.com...
> After all those years I never had problems with my IBM PC, but now I
> think that 4.77 Mhz is a little bit slow.
>
> How can I overclock a 4.77 8088 IBM XT , how much performance will I
> get?
>
> Please help.
Try gently pressing down the "turbo" button on your case... this will send
the FSB sky rocketing to 8MHz, a full 67.7% increase in speed.
I checked my (clone) XT's motherboard, though, and it contained a warning
that care must be taken to ensure the memory modules (640K, soldered) would
have to be of make and model that can tolerate the higher clock as well.

 

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Archived from groups: alt.comp.hardware.overclocking (More info?)

"Carl Dau" <lord_melton@yahoo.com.ar> wrote in message
news:15f2f483.0404202014.300a968e@posting.google.com...
> After all those years I never had problems with my IBM PC, but now I
> think that 4.77 Mhz is a little bit slow.
>
> How can I overclock a 4.77 8088 IBM XT , how much performance will I
> get?

Press the "Turbo" button.
You'll get 70% extra performance IIRC.

Alun Harford

 

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Archived from groups: alt.comp.hardware.overclocking (More info?)

"Carl Dau" <lord_melton@yahoo.com.ar> wrote in message
news:15f2f483.0404202014.300a968e@posting.google.com...
> After all those years I never had problems with my IBM PC, but now I
> think that 4.77 Mhz is a little bit slow.
>
> How can I overclock a 4.77 8088 IBM XT , how much performance will I
> get?
>
> Please help.

You could allways get a 486 off eBay for 50p, if thats within your budget.
Hell, why not splash out and get a pentium90 for £3

hamman

 

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Archived from groups: alt.comp.hardware.overclocking (More info?)

On Wed, 21 Apr 2004 20:21:56 +0100, "Hamman" <imadumbass@pielover.com>
wrote:

>
>"Carl Dau" <lord_melton@yahoo.com.ar> wrote in message
>news:15f2f483.0404202014.300a968e@posting.google.com...
>> After all those years I never had problems with my IBM PC, but now I
>> think that 4.77 Mhz is a little bit slow.
>>
>> How can I overclock a 4.77 8088 IBM XT , how much performance will I
>> get?
>>
>> Please help.
>
>You could allways get a 486 off eBay for 50p, if thats within your budget.
>Hell, why not splash out and get a pentium90 for £3
>
>hamman
>
I run a P4 and an old P2 and also have a 486 DX2/66 that I clocked at
80MHz... why should one not enjoy the overclocking of his old
machine... i think it's great what he tries... but hey... i believe
that 50p is perhaps i bit to much... it costs you when you bring it in
for recycling,.. at least here in Brussels... if you give 50p you can
come pick up my 486 ;-) You get the arcade games for free....