AMD 5x86@160mhz., Media Vision PAS16.

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AMD 5x86@160mhz., Media Vision PAS16.

Postby Intel486dx33 » 2019-2-01 @ 17:38

This is the first computer I ever over clocked believe it or not.
It's a AMD5x86-133 P75(ADW) OverClocked @ 160mhz.

This computer was a mess before I received it.
It was a barn find and had been stored for quite some time.
A little TLC and it runs better then NEW now.

Performs very well with Windows-95b
Very responsive and stable.
I did NOT have to do any tweaking. Just set the motherboard jumpers to 4x40mhz.
All drivers installed Vanilla with Windows-95b. Even the Sound Blaster AWE64 compatible driver and later the upgrade to Media Vision Pro Audio Spectrum PAS16P.
All drivers are provided with Win95b.

—————————————
Bios settings:
Clk/5
Timing = 3-1-1-1
WS=0
—————————————

Time Period: 1993-1995

Specs:
Motherboard - PCchips 918i ( Socket-3 )
Chipset - ALI
CPU - AMD5x86-133 P75(ADW) OverClocked @ 160mhz.
Cache - 256kb.
RAM - 64mb EDO
Graphics - Number9 ( S3 Vision 968 chip ) PCI.
Audio - Media Vision Pro Audio Spectrum PAS16P.
Network - Netgear FA310 PCI ( Digital Chip ).
Hard-drive - 8gb. CF card - Sandisk Extreme.
CDROM - Toshiba IDE 24x
Case - MT-747e AT case from 1990's
Attachments
m918i.gif
m918ip.jpg
IMG_0326.JPG
IMG_0325.JPG
IMG_0333.JPG
Last edited by Intel486dx33 on 2019-6-18 @ 13:44, edited 27 times in total.
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby Intel486dx33 » 2019-2-01 @ 17:42

More photos
Attachments
003.jpg
001.JPG
3423424.jpg
Sound Blaster AWE 64.jpg
53534534534.jpg
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby Intel486dx33 » 2019-2-01 @ 18:28

More photos
Attachments
495AF8F1-FDCB-4026-923F-927514E258E7.jpeg
AMD_Am5x86-P75_F.jpg
006.jpg
004.jpg
IMG_0302 (2).JPG
Last edited by Intel486dx33 on 2019-2-08 @ 02:19, edited 1 time in total.
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby treeman » 2019-2-01 @ 21:24

now just need led to display 160mhz and possibly a heatsink upgrade but can't see current one good on pictures
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby Intel486dx33 » 2019-2-01 @ 22:56

Yes, Do you know of a good heatsink with fan ?
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby BeginnerGuy » 2019-2-01 @ 23:08

The generic socket 3 heatsink+fan i'm seeing in the picture is good enough. If you really want something bulkier, you'll have to go with later heatsink meant for socket 7 up to 370 (which will require modding or some old school epoxy gluing). The bus overclock isn't adding voltage to the core, so the difference in thermals should be minimal to non-existent.

My suggestion would be to instead just use the heatsink you have and get the later ADZ model 5x86 if you REALLY need more cooling (which I don't think you do).

Grats on 160mhz, now try for the legendary 200mhz OC!!
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby treeman » 2019-2-01 @ 23:16

won't argue with that a stock 486 one should do ok, I was in a different boat got one of those tc586 converters all in 1 3v - >5v for older boards which didn't have a heatsink just a glued on fan!

so I glued a socket 7 heatsink and fan to mine
got into the overclocking spirit!

Image

and future proof if you want to try 180 in future
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby BeginnerGuy » 2019-2-01 @ 23:20

mmm a CPU sandwich topped with a spongecake :P
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby Intel486dx33 » 2019-2-01 @ 23:22

Yeah, I cleaned up this old fan and oiled the barrings with a shot of WD40. Runs quiet now and spins. It was not even spinning before.
I added some Artic-4 compound and reattached it to the CPU.

Thats the problem is finding a good heatsink fan that will fit a Socket-3 CPU with out having to glue one on.

I will have to buy some high temp adhesive better heatsinks with a BIG fan and then glue them on.
I really don't can as these CPU will probably never be used in any other computer unless the motherboard dies.
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby treeman » 2019-2-01 @ 23:41

BeginnerGuy wrote:mmm a CPU sandwich topped with a spongecake :P

with some sweet cooling jam inside :blush:

yeah socket 3 is very hard to find a bracket to grip it, I tried making a custom one wasted alot of time and it wasn't stable.

well u can still use it in any other system its no different to a overdrive or a cyrix chip with a glued on pretty heatsink

not sure if reconditioning fans and bearings long term is good, probably fail again, will do for short term bandaid fix.
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby Intel486dx33 » 2019-2-02 @ 01:53

BeginnerGuy wrote:The generic socket 3 heatsink+fan i'm seeing in the picture is good enough. If you really want something bulkier, you'll have to go with later heatsink meant for socket 7 up to 370 (which will require modding or some old school epoxy gluing). The bus overclock isn't adding voltage to the core, so the difference in thermals should be minimal to non-existent.

My suggestion would be to instead just use the heatsink you have and get the later ADZ model 5x86 if you REALLY need more cooling (which I don't think you do).

Grats on 160mhz, now try for the legendary 200mhz OC!!


Hey, I am on the internet right now from this computer.
Internet browsing is really slow for this website.
Using I.E. 5.50.4

I tried to over clock @ 4x50mhz ( 200mhz. ) but the computer would not even post.
So 160mhz is as fast as it will run.
Attachments
001.jpg
002.jpg
Last edited by Intel486dx33 on 2019-4-27 @ 04:09, edited 3 times in total.
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby BeginnerGuy » 2019-2-02 @ 04:16

Awesome! I have a 5x86 ADZ but my only board with support for it doesn't post, so it runs as a DX4 @ 120mhz. I just use Dos and Win 3.1 on it though.

200mhz can be tough. There was a great usenet discussion about getting it running at 200mhz but it seems I've recently ruined it, I went through requesting removal of dumb posts I made as a kid and it seems the whole thread came down with it =\.. I thought it would just remove my post.

I do recall ADZ models have a bit more luck at 200mhz but that's just the higher thermal capability I bet, it really comes down to the rest of your components coping with a 50mhz bus.
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby treeman » 2019-2-02 @ 04:18

at 200mhz you will need to increase voltage too hence bigger heatsink combo
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby BeginnerGuy » 2019-2-02 @ 04:42

treeman wrote:at 200mhz you will need to increase voltage too hence bigger heatsink combo


I ran my 5x86 at 5V by accident for a few years on a generic s3 heatsink and fan and it survived.. just my personal anecdote. It doesn't necessarily need a giant heatsink, and the ADZ model definitely doesn't, it doesn't even require a heatsink at all @ 3.3v.

BUT, I've never seen a 5x86 actually stable at 200mhz anyway, so this is really just chatter until somebody luckier than I posts a their stable system :lol:
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby Intel486dx33 » 2019-2-02 @ 05:20

I think I had a 486dx-50mhz. Back in 1995 on a VLB motherboard with a VLB controller and VLB graphics card Cardex Cirrus logic something. 128kb cache and a 14.4 modem. Conner 120mb hard-drive. 3com network card. And it performed terrible compared to this 5x86 computer. This 5x86 computer performs very well with Win95c. Very snappy and responsive and stable at 160mhz.
Last edited by Intel486dx33 on 2019-2-11 @ 15:48, edited 2 times in total.
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby amadeus777999 » 2019-2-02 @ 09:37

treeman wrote:won't argue with that a stock 486 one should do ok, I was in a different boat got one of those tc586 converters all in 1 3v - >5v for older boards which didn't have a heatsink just a glued on fan!

so I glued a socket 7 heatsink and fan to mine
got into the overclocking spirit!

Image

and future proof if you want to try 180 in future


Nice radio tower. Did you manage to run 200 successfully?
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby treeman » 2019-2-02 @ 10:16

I never tried crossing the 160 barrier but my options are open
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Re: AMD5x86-133 P75 OverClocked @ 160mhz.

Postby Intel486dx33 » 2019-2-02 @ 13:52

I’ll have to check and see if it’s a AMD-5x86-P75 ADW or ADZ ?
I am not sure?
What exactly is the difference ?
And what do these letters stand for ?

Update: Never mind, I see.
I just confirmed I am using the ADW model but it over clocks to 160mhz fine.
Very stable and NO tweaking of the BIOS needed.
I will have to try the ADZ model on this motherboard later.
The CPU heatsink is small but it fastens to the CPU fine with Artic-4 compound.
Like glue, I think I can probably use a larger heatsink with fan and just let the Artic-4 compound act as the adhesive.
Compound is currently stuck to the CPU and heatsink like glue.
Attachments
AMD 5x86 P75 specs.jpg
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Re: 486 OverClocked @ 160mhz.

Postby Intel486dx33 » 2019-2-08 @ 02:26

I added an 8gb. CF card Sandisk Extreme and swapped out the Sound Blaster for a Media Vision Pro Audio Spectrum 16P
Attachments
0DF53F1E-BA5C-48E6-816C-D9B434DAB2EE.jpeg
1706FBA5-AB89-4304-ABC4-653CCFBC874E.jpeg
78EDC610-55EF-4776-8485-91493B036491.jpeg
EFA3C7D2-A22E-45FC-87B8-262C6F20720E.jpeg
5E150008-743C-44D9-A152-C93EAEB91016.jpeg
Last edited by Intel486dx33 on 2019-4-29 @ 16:41, edited 4 times in total.
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Re: 486 OverClocked @ 160mhz.

Postby keenmaster486 » 2019-2-08 @ 03:19

Try using IE 3 or Netscape 3.04 for fast browsing in 95! I’ve been experimenting with those over the past week.
I flermmed the plootash just like you asked.

http://classictechnology.herokuapp.com
http://keenmaster486.github.io
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