GA 6VX7-4 F2

I wish to fit a Pent' 3 Skt 370 1 Ghz processor type SL52R to a 6VX7-4X F2
Motherboard. The specifications for the M'board says that you can fit this
processor but I cannot find any references to the dip switch settings
required. At present a Pent' 3 600 Mhx CPU is fitted.

Can anyone help please.

Bruce Varney wrote:
I wish to fit a Pent' 3 Skt 370 1 Ghz processor type SL52R to a 6VX7-4X F2
Motherboard. The specifications for the M'board says that you can fit this
processor but I cannot find any references to the dip switch settings
required. At present a Pent' 3 600 Mhx CPU is fitted.

Can anyone help please.



I can see manuals over here. And judging by the CPU support table, it
looks like the voltage regulator handles requests for 1.8V OK.

http://tw.giga-byte.com/Support/Moth...=GA-6VX7-4X-AP

Your 1GHz processor, is FSB133 and 1.75V. Multiplier is locked in the
processor, which is why the motherboard multiplier setting won't matter.

http://processorfinder.intel.com/Det...sl52r&OrdCode=

In the manual, under "CPU Speed Setup", I'd select CPU speed of 133Mhz and
PCI bus speed of 33MHz. You don't need to change the "Frequency Ratio", because
that is the multiplier I was referring to. The processor will ignore the
setting on those switches.

I notice that the CPU speed also has an "Auto" setting, with first
four switches off and second two switches on. When doing so, the two
BSEL pins on the bottom of the processor (coded by the processor type),
will send a request for 133MHz operation. So you don't really need to
force 133/33 with the switches. In other words, there are two possible
choices for the CPU Speed Setup, either 133/33 or "Auto".

If the person installing the current processor, had already set it
to "Auto", then in fact you'd just unplug the old processor and
plug in the new one.

BTW - this is the manual I downloaded, for a quick look:
http://america.giga-byte.com/FileLis..._ap_5001_e.pdf

Once it is running, you can verify a few things with CPUZ. This
should tell you about clocks etc. If you used "Auto", this program
will allow you to verify the clock settings the motherboard has used.
If it didn't do the right thing, this is one way to find out. This
is a Windows program (just in case you're using Linux).

http://www.cpuid.com/cpuz.php

Paul

Hi Paul,

Thank you for a detailed reply. I have noticed that you refer to the GA
6VX7 4X AP and my motherboard is a 6VX7 4X F2. Do you know of any
differences between these boards that could affect installation of a 1 Ghz
processor?

Bruce.

"Paul" wrote in message ...
Bruce Varney wrote:
I wish to fit a Pent' 3 Skt 370 1 Ghz processor type SL52R to a 6VX7-4X
F2 Motherboard. The specifications for the M'board says that you can
fit this processor but I cannot find any references to the dip switch
settings required. At present a Pent' 3 600 Mhx CPU is fitted.

Can anyone help please.

I can see manuals over here. And judging by the CPU support table, it
looks like the voltage regulator handles requests for 1.8V OK.

http://tw.giga-byte.com/Support/Moth...=GA-6VX7-4X-AP

Your 1GHz processor, is FSB133 and 1.75V. Multiplier is locked in the
processor, which is why the motherboard multiplier setting won't matter.

http://processorfinder.intel.com/Det...sl52r&OrdCode=

In the manual, under "CPU Speed Setup", I'd select CPU speed of 133Mhz and
PCI bus speed of 33MHz. You don't need to change the "Frequency Ratio",
because
that is the multiplier I was referring to. The processor will ignore the
setting on those switches.

I notice that the CPU speed also has an "Auto" setting, with first
four switches off and second two switches on. When doing so, the two
BSEL pins on the bottom of the processor (coded by the processor type),
will send a request for 133MHz operation. So you don't really need to
force 133/33 with the switches. In other words, there are two possible
choices for the CPU Speed Setup, either 133/33 or "Auto".

If the person installing the current processor, had already set it
to "Auto", then in fact you'd just unplug the old processor and
plug in the new one.

BTW - this is the manual I downloaded, for a quick look:
http://america.giga-byte.com/FileLis..._ap_5001_e.pdf

Once it is running, you can verify a few things with CPUZ. This
should tell you about clocks etc. If you used "Auto", this program
will allow you to verify the clock settings the motherboard has used.
If it didn't do the right thing, this is one way to find out. This
is a Windows program (just in case you're using Linux).

http://www.cpuid.com/cpuz.php

Paul

Bruce Varney wrote:
Hi Paul,

Thank you for a detailed reply. I have noticed that you refer to the GA
6VX7 4X AP and my motherboard is a 6VX7 4X F2. Do you know of any
differences between these boards that could affect installation of a 1 Ghz
processor?

Bruce.


I couldn't find "AP", and did the best I could.

Compare the jumpers and features, between the manual I downloaded,
and your board, and see how closely they correlate. Even my motherboard
has the same concept of an "FSB" set of switches, and a "multiplier"
set of switches, and the same rules apply. The "multiplier" doesn't
do anything and can be ignored (for any modern, high speed P3). The
FSB a.k.a CPU clock, is set to match the speed of the processor.

So either "Auto" or explicitly setting the correct speed (66MHz, 100MHz,
133MHz) is what is needed. There can also be options for "in-between"
frequencies, but some of those choices make the PCI bus run outside of
spec. Stick with your 133Mhz or Auto choice for now.

Paul

"Paul" wrote in message ...
Bruce Varney wrote:
Hi Paul,

Thank you for a detailed reply. I have noticed that you refer to the GA
6VX7 4X AP and my motherboard is a 6VX7 4X F2. Do you know of any
differences between these boards that could affect installation of a 1
Ghz processor?

Bruce.


I couldn't find "AP", and did the best I could.

Compare the jumpers and features, between the manual I downloaded,
and your board, and see how closely they correlate. Even my motherboard
has the same concept of an "FSB" set of switches, and a "multiplier"
set of switches, and the same rules apply. The "multiplier" doesn't
do anything and can be ignored (for any modern, high speed P3). The
FSB a.k.a CPU clock, is set to match the speed of the processor.

So either "Auto" or explicitly setting the correct speed (66MHz, 100MHz,
133MHz) is what is needed. There can also be options for "in-between"
frequencies, but some of those choices make the PCI bus run outside of
spec. Stick with your 133Mhz or Auto choice for now.

Paul

I had a look at the dip switches earlier and they are set for pent 3 800/133
Mhz FSB but the processor installed is a 600/133 Mhz FSB. As soon as I
have installed the 1 Ghz Processor and run it for a short while I will
report back on the progress.

Again, thank you Paul for your response.

Bruce.

I had a look at the dip switches earlier and they are set for pent 3
800/133 Mhz FSB but the processor installed is a 600/133 Mhz FSB. As
soon as I have installed the 1 Ghz Processor and run it for a short while
I will report back on the progress.

Again, thank you Paul for your response.

Bruce.
Installed the I Ghz processor today and it lead me a merry dance. I did
set the dip switches as suggested in the manual. Firstly in the boot up
sequence it reports the processor as 900Hz ! Secondly it corrupted XP Pro
so it wouldn't load !

I then tried with a blank disk, installing Win 98SE which loaded and runs
ok. Then tried installing XP Pro firstly as a new installation on a second
partition, kept halting saying drive C was corrupted ! Tried as an upgrade
from Win 98SE to XP Pro same thing. drive C corrupted !

Tomorrow I will put the old processor back in and see what happens.

Bruce Varney wrote:
I had a look at the dip switches earlier and they are set for pent 3
800/133 Mhz FSB but the processor installed is a 600/133 Mhz FSB. As
soon as I have installed the 1 Ghz Processor and run it for a short while
I will report back on the progress.

Again, thank you Paul for your response.

Bruce.
Installed the I Ghz processor today and it lead me a merry dance. I did
set the dip switches as suggested in the manual. Firstly in the boot up
sequence it reports the processor as 900Hz ! Secondly it corrupted XP Pro
so it wouldn't load !

I then tried with a blank disk, installing Win 98SE which loaded and runs
ok. Then tried installing XP Pro firstly as a new installation on a second
partition, kept halting saying drive C was corrupted ! Tried as an upgrade
from Win 98SE to XP Pro same thing. drive C corrupted !

Tomorrow I will put the old processor back in and see what happens.



OK, this is a FAQ for the Asus P2B (440BX) family. There were problems at one point
with multiplier values of 11, 12, and 14. Your multiplier is 1000/133 = 7.5,
so that shouldn't have been a problem.

http://homepage.hispeed.ch/rscheideg...grade_faq.html

The fact that you got 900MHz, should have stopped you right in your
tracks. If the multiplier on the processor really is 7.5, then 900/7.5 = 120.
If the input clock was 120, that is an "in-between" value for the clock.
It could be that 120 / 3 = 40Mhz for the PCI clock, which could have
caused your corruption on boot (some clock generators have a 120 / 3
setting and also a 120 / 4, so there are a couple possible outcomes).

The clock generator chip has a data sheet. Your user manual has a table,
but with four active switches at work, there are 16 possible frequency
settings, and your user manual doesn't document all of them.

If the clock generator is an ICS brand device, you can find an ICST.com
datasheet archived on here. I think mine might have been a 9150-08 or
something close to that. There are other brands of clockgen chips, but
these guys have a decent portion of market share. (Read the label on the
chip, to identify it - the user manual seldom mentions the identity of
what they used. Without an actual picture of your board, I cannot give
an exact location for it.)

http://web.archive.org/web/200412050....icst.com/pdf/

OK, I think I've got it. You user manual mentions "ICS 9248DF-39" in
the block diagram. This is the nearest datasheet. The chip is a 48 pin
device (24 legs per side):

http://web.archive.org/web/200410140...ics9248-39.pdf

Page 3 has a table. 1111 = 133Mhz. If you flipped all the switch
settings by accident, 0000 = 124MHz, with a PCI bus of 41.33MHz (ouch).
I think in fact, that the readout might have been closer to 930 MHz ?
Just a guess.

Double check your switch settings. I wouldn't let the POST finish and
boot into Windows, until you get the correct "1000" readout at the
beginning of POST. Turn off the power, and try the switches again,
before letting it get near the hard drives.

If you want a good way to test, download Knoppix (knopper.net) or
Ubuntu. The download is 700MB and is in ISO format. You use a CD
burning tool like Nero, and use the ISO to cause a bootable CD
to be burned. I have several different versions that I use
for booting potentially unstable systems. No software is installed
and no hard drive space is needed. In fact, you can disconnect
the hard drive if you want, while booting either of those OSes.
I do overclock testing with Knoppix, because I like watching the
text messages displayed, as stuff on the bus fails etc. You cannot
hurt a CD, like you can a hard drive, which is the nice feature of
booting a Linux LiveCD. (There is probably some minimal amount of
RAM needed to boot them - I have 1GB here, which is why I never
bothered to check the minimum.)

HTH,
Paul

I have checked and double checked the dip switches, I have even operated the
switches quite a few times in case of dirty contacts, still report 900 Mhz.
I then tried setting S1 to 1&2 OFF 3 ON and 4 off and S2 all OFF, hasn't
made a blind bit of difference. I cannot believe that all the switches are
defective in one way or another and since the only thing I have changed is
the processor chip I am starting to think that it is this that is defective.
If I get time today I will put the 600 Mhz CPU back in and see what happens.


"Paul" wrote in message ...
Bruce Varney wrote:
I had a look at the dip switches earlier and they are set for pent 3
800/133 Mhz FSB but the processor installed is a 600/133 Mhz FSB. As
soon as I have installed the 1 Ghz Processor and run it for a short
while I will report back on the progress.

Again, thank you Paul for your response.

Bruce.
Installed the I Ghz processor today and it lead me a merry dance. I did
set the dip switches as suggested in the manual. Firstly in the boot up
sequence it reports the processor as 900Hz ! Secondly it corrupted XP
Pro so it wouldn't load !

I then tried with a blank disk, installing Win 98SE which loaded and runs
ok. Then tried installing XP Pro firstly as a new installation on a
second partition, kept halting saying drive C was corrupted ! Tried as
an upgrade from Win 98SE to XP Pro same thing. drive C corrupted !

Tomorrow I will put the old processor back in and see what happens.

OK, this is a FAQ for the Asus P2B (440BX) family. There were problems at
one point
with multiplier values of 11, 12, and 14. Your multiplier is 1000/133 =
7.5,
so that shouldn't have been a problem.

http://homepage.hispeed.ch/rscheideg...grade_faq.html

The fact that you got 900MHz, should have stopped you right in your
tracks. If the multiplier on the processor really is 7.5, then 900/7.5 =
120.
If the input clock was 120, that is an "in-between" value for the clock.
It could be that 120 / 3 = 40Mhz for the PCI clock, which could have
caused your corruption on boot (some clock generators have a 120 / 3
setting and also a 120 / 4, so there are a couple possible outcomes).

The clock generator chip has a data sheet. Your user manual has a table,
but with four active switches at work, there are 16 possible frequency
settings, and your user manual doesn't document all of them.

If the clock generator is an ICS brand device, you can find an ICST.com
datasheet archived on here. I think mine might have been a 9150-08 or
something close to that. There are other brands of clockgen chips, but
these guys have a decent portion of market share. (Read the label on the
chip, to identify it - the user manual seldom mentions the identity of
what they used. Without an actual picture of your board, I cannot give
an exact location for it.)

http://web.archive.org/web/200412050....icst.com/pdf/

OK, I think I've got it. You user manual mentions "ICS 9248DF-39" in
the block diagram. This is the nearest datasheet. The chip is a 48 pin
device (24 legs per side):

http://web.archive.org/web/200410140...ics9248-39.pdf

Page 3 has a table. 1111 = 133Mhz. If you flipped all the switch
settings by accident, 0000 = 124MHz, with a PCI bus of 41.33MHz (ouch).
I think in fact, that the readout might have been closer to 930 MHz ?
Just a guess.

Double check your switch settings. I wouldn't let the POST finish and
boot into Windows, until you get the correct "1000" readout at the
beginning of POST. Turn off the power, and try the switches again,
before letting it get near the hard drives.

If you want a good way to test, download Knoppix (knopper.net) or
Ubuntu. The download is 700MB and is in ISO format. You use a CD
burning tool like Nero, and use the ISO to cause a bootable CD
to be burned. I have several different versions that I use
for booting potentially unstable systems. No software is installed
and no hard drive space is needed. In fact, you can disconnect
the hard drive if you want, while booting either of those OSes.
I do overclock testing with Knoppix, because I like watching the
text messages displayed, as stuff on the bus fails etc. You cannot
hurt a CD, like you can a hard drive, which is the nice feature of
booting a Linux LiveCD. (There is probably some minimal amount of
RAM needed to boot them - I have 1GB here, which is why I never
bothered to check the minimum.)

HTH,
Paul

In message , Bruce Varney
writes
I have checked and double checked the dip switches, I have even operated the
switches quite a few times in case of dirty contacts, still report 900 Mhz.
I then tried setting S1 to 1&2 OFF 3 ON and 4 off and S2 all OFF, hasn't
made a blind bit of difference. I cannot believe that all the switches are
defective in one way or another and since the only thing I have changed is
the processor chip I am starting to think that it is this that is defective.
If I get time today I will put the 600 Mhz CPU back in and see what happens.


Bruce, its always possible that the BIOS simply doesn't understand the
CPU speed settings, and the post is just wrong.

I (still) run a GA-6BXDS board from 1998/9. It's design spec is PII
processors 200-633Mhz. It is fitted with a later pair of P3/1GHz/100
processors. The processors are multiplier locked, and the frequency
ratio dip settings on the board have no effect whatsoever (as you appear
to have discovered!).

The post reports the processors as something like 958Mhz but all the
diagnostics show them running at 1Ghz (actually 998Mhz) . At the time I
seem to remember a discussion on here about the fact that the Bios used
a lookup table that only understood chips up to 958Mhz and it simply
reported the highest number in its list.

It may be that your Bios is in the same position.

Doesn't however solve your C Drive problem.

An alternative thought. What speed memory is fitted. Was the 600Mhz chip
a 600/100 or a 600/133. If it was a 600/100 then you may have some
100Mhz memory fitted. If the Bus speed is set to auto, then the 600/100
would run just fine with 100Mhz memory, but the 1Ghz/133 would have all
sorts of problems.

Try running the board with the bus speed forced to 100Mhz - you will
only get 750Mhz out of the processor, but if that works, then I suspect
you have at least one stick of PC100 memory.

Hope this helps.

Regards
--
Peter R Cook

"Invalid" wrote in message
...
In message , Bruce Varney
writes
I have checked and double checked the dip switches, I have even operated
the
switches quite a few times in case of dirty contacts, still report 900
Mhz.
I then tried setting S1 to 1&2 OFF 3 ON and 4 off and S2 all OFF, hasn't
made a blind bit of difference. I cannot believe that all the switches
are
defective in one way or another and since the only thing I have changed is
the processor chip I am starting to think that it is this that is
defective.
If I get time today I will put the 600 Mhz CPU back in and see what
happens.


Bruce, its always possible that the BIOS simply doesn't understand the CPU
speed settings, and the post is just wrong.

I (still) run a GA-6BXDS board from 1998/9. It's design spec is PII
processors 200-633Mhz. It is fitted with a later pair of P3/1GHz/100
processors. The processors are multiplier locked, and the frequency ratio
dip settings on the board have no effect whatsoever (as you appear to have
discovered!).

The post reports the processors as something like 958Mhz but all the
diagnostics show them running at 1Ghz (actually 998Mhz) . At the time I
seem to remember a discussion on here about the fact that the Bios used a
lookup table that only understood chips up to 958Mhz and it simply
reported the highest number in its list.

It may be that your Bios is in the same position.

Doesn't however solve your C Drive problem.

An alternative thought. What speed memory is fitted. Was the 600Mhz chip a
600/100 or a 600/133. If it was a 600/100 then you may have some 100Mhz
memory fitted. If the Bus speed is set to auto, then the 600/100 would run
just fine with 100Mhz memory, but the 1Ghz/133 would have all sorts of
problems.

Try running the board with the bus speed forced to 100Mhz - you will only
get 750Mhz out of the processor, but if that works, then I suspect you
have at least one stick of PC100 memory.

Hope this helps.

Regards
--
Peter R Cook

Hi Peter,

Thanks for your reply.

I checked the memory sticks, they are 128Mb 133mhz, the 600Mhz CPU is a
100Mhz FSB so I think your idea is a non starter, although it was worth
checking out though.

Bruce..