It mostly depends on the VRM (whether it is supporting voltages below 1.8v). But even if it is early type, you can mask a pin or few and get the CPU running at 1.8v which is just 0.15v to 0.05v over stosk, depending on specified voltage (1.65v, 1.7v, 1.75v). Most likely your 850 is 1.7v. Done that many times, works perfectly.

And if it supports 850 Mhz then it supports all 100MHz bus Coppermines because multis are locked.

computergeek92 wrote:

I have an oldie but goodie Gateway GP6-400 system that was manufactured 1/21/99. The motherboard is an Intel WS440BX. I know the later editions of this board supported Slot 1 Coppermine PIII's up to 850MHz. Will this early board support the PIII 850 once I update the BIOS to the latest revision? The current BIOS is dated Oct 1998.

I have a 1.1ghz Coppermine in a WS440BX.

Runs fine.

Only bug is that bios reports it running at 700mhz but the cpu does actually run at 1.1ghz as CPU-Z, Windows 98 and AIDA64 reports.

Also my BIOS is from April of 1999.

mastergamma12 wrote:

I have a 1.1ghz Coppermine in a WS440BX. […]
Show full quote

computergeek92 wrote:

I have an oldie but goodie Gateway GP6-400 system that was manufactured 1/21/99. The motherboard is an Intel WS440BX. I know the later editions of this board supported Slot 1 Coppermine PIII's up to 850MHz. Will this early board support the PIII 850 once I update the BIOS to the latest revision? The current BIOS is dated Oct 1998.

I have a 1.1ghz Coppermine in a WS440BX.

Runs fine.

Only bug is that bios reports it running at 700mhz but the cpu does actually run at 1.1ghz as CPU-Z, Windows 98 and AIDA64 reports.

Also my BIOS is from April of 1999.

Wow, so 1.1GHz PIII Coppermines do exist. I thought they were all recalled.

So 700Mhz is the max your mobo will read? Do you have an OEM or retail board? I personaly keep my systems as natural looking as possible. That's why I keep an 800MHz PIII in my Dell Optiplex GX1. It is the max the BIOS will read on bootup, although it will support 1GHz or even faster if used with a Powerleap of course.

computergeek92 wrote:

mastergamma12 wrote:

I have a 1.1ghz Coppermine in a WS440BX. […]
Show full quote

computergeek92 wrote:

I have an oldie but goodie Gateway GP6-400 system that was manufactured 1/21/99. The motherboard is an Intel WS440BX. I know the later editions of this board supported Slot 1 Coppermine PIII's up to 850MHz. Will this early board support the PIII 850 once I update the BIOS to the latest revision? The current BIOS is dated Oct 1998.

I have a 1.1ghz Coppermine in a WS440BX.

Runs fine.

Only bug is that bios reports it running at 700mhz but the cpu does actually run at 1.1ghz as CPU-Z, Windows 98 and AIDA64 reports.

Also my BIOS is from April of 1999.

Wow, so 1.1GHz PIII Coppermines do exist. I thought they were all recalled.

So 700Mhz is the max your mobo will read? Do you have an OEM or retail board? I personaly keep my systems as natural looking as possible. That's why I keep an 800MHz PIII in my Dell Optiplex GX1. It is the max the BIOS will read on bootup, although it will support 1GHz or even faster if used with a Powerleap of course.

It's an OEM board, and it boots up fine with a Sloket III Slocket.

mastergamma12 wrote:

It's an OEM board, and it boots up fine with a Sloket III Slocket.

An early 1999 Gateway board just like mine?

computergeek92 wrote:

mastergamma12 wrote:

It's an OEM board, and it boots up fine with a Sloket III Slocket.

An early 1999 Gateway board just like mine?

Yup, I even got it in one of these cases (not my image)

OH YEAH NICE MOTHERLOAD!!! 😁 I Can't wait to find one of those one day. My full tower G's are two identical looking P5-75 and P5-100 cases. Artex has the same looking towers I have. I also used to have a giant P5-200 case but with different styling. Thanks for the photo.

mastergamma12 wrote:

Yup, I even got it in one of these cases (not my image) […]
Show full quote

computergeek92 wrote:

mastergamma12 wrote:

It's an OEM board, and it boots up fine with a Sloket III Slocket.

An early 1999 Gateway board just like mine?

Yup, I even got it in one of these cases (not my image)

Is that an XP sticker I spy on that case? You also have a newer Pentium sticker. Was this case once used for a modern PC or are the stickers on there just to confuse people? 😉

BLANK

Oh shoot, my bad. I was tired when I wrote my previous post. Would the updated Gateway BIOS be able to run the PIII under 2V or will it be stuck at 2V? I have my GX1 here and it does not seem to have any trouble running a PIII with BIOS A07 although being designed for PII's. The site I visited claimed that once I updated the BIOS on my Dell, it should work fine, but does not mention anything about voltages. This second site claims something else, but does the GX1 mobo really drop the voltage to 1.72V automatically, even if I use a Slot 1 SECC2 PIII instead of a slocket?

http://www.angelfire.com/wy/DellOPTIPLEX/GX1.htm

https://ubuntuforums.org/archive/index.php/t-1017181.html

I've got a coppermine 800 in my gp6-400

computergeek92 wrote:

Oh shoot, my bad. I was tired when I wrote my previous post. Would the updated Gateway BIOS be able to run the PIII under 2V or will it be stuck at 2V? I have my GX1 here and it does not seem to have any trouble running a PIII with BIOS A07 although being designed for PII's. The site I visited claimed that once I updated the BIOS on my Dell, it should work fine, but does not mention anything about voltages. This second site claims something else, but does the GX1 mobo really drop the voltage to 1.72V automatically, even if I use a Slot 1 SECC2 PIII instead of a slocket?

http://www.angelfire.com/wy/DellOPTIPLEX/GX1.htm

https://ubuntuforums.org/archive/index.php/t-1017181.html

My cpu runs at 1.75 on this board (even if AIDA64's CPUID doesn't show that, I'm pretty sure that's a Win98 limitation).

So it'll run at what your cpu runs at.

As for Dell P6 stuff, I got no idea.

candle_86 wrote:

I've got a coppermine 800 in my gp6-400

Did you have to update the Bios first? Your cpu has been running with no issue since?

mastergamma12 wrote:

My cpu runs at 1.75 on this board (even if AIDA64's CPUID doesn't show that, I'm pretty sure that's a Win98 limitation). […]
Show full quote

computergeek92 wrote:

Oh shoot, my bad. I was tired when I wrote my previous post. Would the updated Gateway BIOS be able to run the PIII under 2V or will it be stuck at 2V? I have my GX1 here and it does not seem to have any trouble running a PIII with BIOS A07 although being designed for PII's. The site I visited claimed that once I updated the BIOS on my Dell, it should work fine, but does not mention anything about voltages. This second site claims something else, but does the GX1 mobo really drop the voltage to 1.72V automatically, even if I use a Slot 1 SECC2 PIII instead of a slocket?

http://www.angelfire.com/wy/DellOPTIPLEX/GX1.htm

https://ubuntuforums.org/archive/index.php/t-1017181.html

My cpu runs at 1.75 on this board (even if AIDA64's CPUID doesn't show that, I'm pretty sure that's a Win98 limitation).

So it'll run at what your cpu runs at.

As for Dell P6 stuff, I got no idea.

Wow, so the rumour where many 100fsb Pentium II boards only run the cpu at 2.0V is not entirely true? I read that some Slocket converter cards depend on the mobo for the correct voltage. The cpu card itself just allows for higher bus multipliers and some motherboards DO NOT work with Slockets.

I would think your safe as the board was made by Intel themselves
At the very least I would say you are safe to a P3 Katmai 600 (after this you which VRM you have comes into play)

Out of my 3 Slot 1 mother boards 2 are limited, Both duel CPU if that makes a difference. An Asus P2B-DS and a Compaq server, both that had P2 400's in them originally. I would think that the most of these boards though were lost many years ago. Either being the early therefore older systems or thrown/swapped out when people couldn't upgrade to later CPU's so bit harder to find these days.

My Dell BX motherboard that shipped with a P3 500 shows @00 Mhz at post, As dell didn't leave enough space for 4 figures it seems.
BIOS and everywhere else shows 1000 Mhz fine

Early VRM allows going down to 1.8v not 2.0v.

And even if you use Slocket that allows for voltage setting, you will not get below 1.8v if your board has old type VRM. Jumpers on the slocket just set the VID to either 0 (low= short to GND) or 1 (high=open or VCC). Exactly the same effect as you get by taping the pins on the Slot1 cartridge. 99% slockets depend on the motherboard for voltage, only few exceptions (like Powerleap slocket).

Regarding multipliers, is it too difficult to understand that it does not matter what multiplier you set either on the motherboard or slocket unless you have engineering sample CPU with unlocked multis? If you have regular CPU you can set it whatever you want and it still works at what it set at factory. Meaning it does not matter if the CPU is 6*100 MHz or 10*100 MHz.

computergeek92 wrote:

candle_86 wrote:

I've got a coppermine 800 in my gp6-400

Did you have to update the Bios first? Your cpu has been running with no issue since?

It worked without a bios update, just reported the CPU wrong, as soon as I did a bios update it detected it fine