Cyrix unsupported

Cyrix unsupported

Post by Timothy Doms » Fri, 10 Oct 2003 06:17:22



Here was my problem (alt.os.linux.suse);

Quote:> I have SuSE 8.2 on an old Packard Bell Cyrix x86 box, and I read that
> Cyrix isn't supported in 8.2.  I would like to know if this is really
> important, or if I should put another Linux on it, because when things
> go wrong it will be harder to isolate a problem if it could always be
> the unsupported-ness of my chip.  I was thinking about getting the
> manuals, because I heard they are good, but I won't if there will
> always be problems.

> --

Then the conversation got to here;


> > Well thanks, I was hoping that it would work on Cyrix but that they
> > wouldn't give any support.  From the one Compaq guy I learned that the
> > chip is crap, no surprise, so I will use Mandrake or something.  I
> > won't dump this computer because it was free, I just put an ethernet
> > card in it and 128 meg ram (apparently the limit).  I have 2 other
> > computers, one a g4 powerMac, so until I learn Linux this is my Linux
> > box.  One day I will build a little aluminum tower and put silent fans
> > in it and ALL SUPPORTED parts, maybe then I will come back to SuSE.  I
> > will try 7.x first,

> Why not look out for a secondhand k6/2 or other chip that is supported,
> won`t
> cost more than a few `s and then Suse will work fine and a lot faster
> than
> any distro on a cyrix.

> I have a k6/3 450 with 256 meg ram here that acts as a
> server/router/print
> server/backup/emergency browser and mailer and also chunters away at
> seti
> 24/7 ( completes a unit in under 22 hrs ), been running Suse 8.1 no
> probs
> with kde and everything installed, up for over 60 days now and still
> going
> strong ( would have been longer except for power outs )

> --
> Mark
> Twixt hill and high water.
> N.Wales, UK.
> Email is spam trap try baskitcaise at gmx dot co dot uk

Then I did some installing and it got to this;

- Show quoted text -


> > > Just unplug the old one and stick in a new one?  I can do basic
> > > replacement of stuff like hard drives and memory, but I can't solder
> > > anything.  I found a ton of them on ebay and I want to try it, they're
> > > so cheap.

> > Yep just drop it in, but you will have to change the core voltage by the
> > jumpers on the board, if its a k6-2 it will need 2.2V ( it should be written
> > on the cpu ) also the chip mhz will come into play so look for fsb jumpers to
> > set to 66, 75, or 100 and the the multiplier, if its a k6-2 400 then the fsb
> > will be 100mhz by 4 multiplier, or 66x6 these should be marked out on the
> > board.

> > It will depend on the mobo manufacturer, the best thing is to download the
> > manual from the manu`s website, this will give the settings and where on the
> > board the jumpers are.

> > If the board says it will not do the full speed of the k6-2, if the multiplier
> > does not go upto the required rate to give the correct speed  then try
> > setting it to x2, some boards will then go a step higher instead and report
> > the right speed.

> > Any probs then post again.

> I got it in there and dropped in a k6/iii 366.  I didn't buy a faster
> one and I'm glad because the fsb (whatever that means) jumpers  only go
> up to 75 and the multiplier only goes to 4.  I tried another
> combination hoping that it would go higher but no dice.

> (I tried setting the fsb to 2x but that didn't work either, and I
> changed the voltage to 2.2)

> Now I have another problem, I boot from the SuSE cd in and I get this
> after DMI pool data success

> ISOLINUX 1.62 0x3e713b13 copyright blah blah
> Loading...
> Initializing gfx code...
> Memory: 0x10000 - 0x60000, img data at 0x3f5f4

> If I try to boot from the rescue disk or the hard drive then I get to
> grub loader and then nothing.

> I took out the 128 mb that I had upgraded to (and installed
> successfully with) and put in the original 64, but I still get the same
> thing.

> Are there memory jumpers that I need to change?  Thanks for your help
> so far.

> --

No response so far.  Can anyone in this group help?

--

 
 
 

Cyrix unsupported

Post by Leon The Peo » Fri, 10 Oct 2003 13:16:03



Quote:> Here was my problem (alt.os.linux.suse);
> > I have SuSE 8.2 on an old Packard Bell Cyrix x86 box, and I read that
> > Cyrix isn't supported in 8.2.

There used to a utility to set up cyrix cpu's ,  but its not needed since
the kernel does it all now.

Therefore SUSE does not need to 'support' cyrix cpus.

Quote:> > I got it in there and dropped in a k6/iii 366.  I didn't buy a faster
> > one and I'm glad because the fsb (whatever that means) jumpers  only go
> > up to 75 and the multiplier only goes to 4.  I tried another
> > combination hoping that it would go higher but no dice.

Oh heck , you are overclocking your Ram to 75mhz.
You have  72 pin simm memory right  ? well thats limitted to 66mhz.
at 75, you are overclocking it.

Quote:> > (I tried setting the fsb to 2x but that didn't work either, and I
> > changed the voltage to 2.2)

The cpu probably treates 2x as 6x or something.

You need to get the specs for the cpu  as well as for the motherboard.
2x is often mapped to something higher,
eg instead of  75 *  4 , you could try 66   * 6 .. u just need to know about
how to tell the cpu to go to 6x.

Quote:> > I took out the 128 mb that I had upgraded to (and installed
> > successfully with) and put in the original 64, but I still get the same
> > thing.

> > Are there memory jumpers that I need to change?  Thanks for your help
> > so far.

> > --
> No response so far.  Can anyone in this group help?

Probably because you are running your ram at 75mhz.

you could try clicking back to 66  * 4 and seeing if that works.

 
 
 

Cyrix unsupported

Post by Timothy Doms » Sat, 11 Oct 2003 07:28:39






> > Here was my problem (alt.os.linux.suse);
> > > I have SuSE 8.2 on an old Packard Bell Cyrix x86 box, and I read that
> > > Cyrix isn't supported in 8.2.

> There used to a utility to set up cyrix cpu's ,  but its not needed since
> the kernel does it all now.

> Therefore SUSE does not need to 'support' cyrix cpus.

> > > I got it in there and dropped in a k6/iii 366.  I didn't buy a faster
> > > one and I'm glad because the fsb (whatever that means) jumpers  only go
> > > up to 75 and the multiplier only goes to 4.  I tried another
> > > combination hoping that it would go higher but no dice.

> Oh heck , you are overclocking your Ram to 75mhz.
> You have  72 pin simm memory right  ? well thats limitted to 66mhz.
> at 75, you are overclocking it.

AHA
> > > (I tried setting the fsb to 2x but that didn't work either, and I
> > > changed the voltage to 2.2)

> The cpu probably treates 2x as 6x or something.

> You need to get the specs for the cpu  as well as for the motherboard.
> 2x is often mapped to something higher,
> eg instead of  75 *  4 , you could try 66   * 6 .. u just need to know about
> how to tell the cpu to go to 6x.

> > > I took out the 128 mb that I had upgraded to (and installed
> > > successfully with) and put in the original 64, but I still get the same
> > > thing.

> > > Are there memory jumpers that I need to change?  Thanks for your help
> > > so far.

> > > --
> > No response so far.  Can anyone in this group help?

> Probably because you are running your ram at 75mhz.

> you could try clicking back to 66  * 4 and seeing if that works.

Thank you so much for the help, I will get to it this weekend.

--

 
 
 

Cyrix unsupported

Post by Leon The Peo » Sun, 12 Oct 2003 13:10:10


The key is that with this era of motherboard, the FSB is the RAM speed.

You need special ram to get to 75mhz FSB.
Also the buses are overclocked - the PCI bus goes to 37.5mhz instead of 33.





message

> > > Here was my problem (alt.os.linux.suse);
> > > > I have SuSE 8.2 on an old Packard Bell Cyrix x86 box, and I read
that
> > > > Cyrix isn't supported in 8.2.

> > There used to a utility to set up cyrix cpu's ,  but its not needed
since
> > the kernel does it all now.

> > Therefore SUSE does not need to 'support' cyrix cpus.

> > > > I got it in there and dropped in a k6/iii 366.  I didn't buy a
faster
> > > > one and I'm glad because the fsb (whatever that means) jumpers  only
go
> > > > up to 75 and the multiplier only goes to 4.  I tried another
> > > > combination hoping that it would go higher but no dice.

> > Oh heck , you are overclocking your Ram to 75mhz.
> > You have  72 pin simm memory right  ? well thats limitted to 66mhz.
> > at 75, you are overclocking it.

> AHA
> > > > (I tried setting the fsb to 2x but that didn't work either, and I
> > > > changed the voltage to 2.2)

> > The cpu probably treates 2x as 6x or something.

> > You need to get the specs for the cpu  as well as for the motherboard.
> > 2x is often mapped to something higher,
> > eg instead of  75 *  4 , you could try 66   * 6 .. u just need to know
about
> > how to tell the cpu to go to 6x.

> > > > I took out the 128 mb that I had upgraded to (and installed
> > > > successfully with) and put in the original 64, but I still get the
same
> > > > thing.

> > > > Are there memory jumpers that I need to change?  Thanks for your
help
> > > > so far.

> > > > --
> > > No response so far.  Can anyone in this group help?

> > Probably because you are running your ram at 75mhz.

> > you could try clicking back to 66  * 4 and seeing if that works.

> Thank you so much for the help, I will get to it this weekend.

> --

 
 
 

Cyrix unsupported

Post by Timothy Doms » Thu, 16 Oct 2003 09:34:41




> The key is that with this era of motherboard, the FSB is the RAM speed.

> You need special ram to get to 75mhz FSB.
> Also the buses are overclocked - the PCI bus goes to 37.5mhz instead of 33.






> message

> > > > Here was my problem (alt.os.linux.suse);
> > > > > I have SuSE 8.2 on an old Packard Bell Cyrix x86 box, and I read
> that
> > > > > Cyrix isn't supported in 8.2.

> > > There used to a utility to set up cyrix cpu's ,  but its not needed
> since
> > > the kernel does it all now.

> > > Therefore SUSE does not need to 'support' cyrix cpus.

> > > > > I got it in there and dropped in a k6/iii 366.  I didn't buy a
> faster
> > > > > one and I'm glad because the fsb (whatever that means) jumpers  only
> go
> > > > > up to 75 and the multiplier only goes to 4.  I tried another
> > > > > combination hoping that it would go higher but no dice.

> > > Oh heck , you are overclocking your Ram to 75mhz.
> > > You have  72 pin simm memory right  ? well thats limitted to 66mhz.
> > > at 75, you are overclocking it.

> > AHA
> > > > > (I tried setting the fsb to 2x but that didn't work either, and I
> > > > > changed the voltage to 2.2)

> > > The cpu probably treates 2x as 6x or something.

> > > You need to get the specs for the cpu  as well as for the motherboard.
> > > 2x is often mapped to something higher,
> > > eg instead of  75 *  4 , you could try 66   * 6 .. u just need to know
> about
> > > how to tell the cpu to go to 6x.

> > > > > I took out the 128 mb that I had upgraded to (and installed
> > > > > successfully with) and put in the original 64, but I still get the
> same
> > > > > thing.

> > > > > Are there memory jumpers that I need to change?  Thanks for your
> help
> > > > > so far.

> > > > > --
> > > > No response so far.  Can anyone in this group help?

> > > Probably because you are running your ram at 75mhz.

> > > you could try clicking back to 66  * 4 and seeing if that works.

> > Thank you so much for the help, I will get to it this weekend.

> > --

Well thanks for the help, but I ended up putting the Cyrix back in and
installing Mandrake.  I will chalk it up to a learning experience.  I
switched so many jumpers that my head was spinning.  But I did improve
one thing, my BIOS now shows the proper chip and speed.  I set the
jumpers correctly, as per the instructions written on the chip, they
weren't before so theBIOS screen had 233 mhz or 250 or something.
(Right after I got it)  Now the BIOS says Cyrix MXII - 300 like it
should.  And I have Mandrake, so that's ok.  I would rather have SuSE
but, oh well.  I will save for a linux box made from researched,
all-supported components.

When the AMD was in there none of the jumper permutations worked.
There is a little jumper on this board that is for Cyrix only, and on
the tiny chart for chip types with their respective jumper combos, AMD
k6 III wasn't on there, just k6.  I think this is a weird board.  And I
KNOW it's old.  There is also no hope of ever getting a manual or
support because Packard Bell is gone and they were not interested in
supporting their shitty boxes, so all that's left is "Ray's Packard
Bell Web Site", which hasn't been updated for years.  There is so much
unintentional comedy with all these computer companies.

Thanks again.

--

 
 
 

1. 2.4.19-pre2 Cyrix III SEGFAULT (Cyrix II redux?)

In compiling the kernel, I've been experiencing the
same gcc-2.96 (and gcc-3.0+) SEGFAULT again on Cyrix
III GigaPro (733Mhz, Samuel II core chipset).

But I recalled Linux 2.2 having a bug fix for broken
L2 cache in Cyrix II.  So, it got me thinking again...
(did Cyrix fix this L2 cache in certain subsequential
core?)

Does anyone recall where exactly are the Cyrix II L2
cache bug fix in the kernelso that I can experiement
them toward the Cyrix III?

Assuming no else sees VM bugs, I'll assume that this
is Cyrix-specific.  I've seen various VM BUGs for each
patch releases since 2.4.17 particularly when
compiling.

MOBO DETAILS:
Soyo 7VEM motherboard (686A PL133, despite having an
ALL VIA-chipsets (Cyrix III-733Mhz, VIA-VT82C596A
multifunctional audio/AGPvideo/modem, Rhine Ethernet,
Trident APG), no drivers are loaded into the kernel
except for EXT2, Trident Video (no framebuffer
support) and IDE (via82cxxx.c).  BARE KERNEL.  (BTW,
it was a $250 Fry's special running a barebone
multimedia Linux, so no snickering please.).

Passed memtest86.

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