I believe that card is set up to tell the motherboard the voltage your are setting and the motherboard does the work. Kinda like auto detection but it detects is what you set on the slotket.

There are versions that actually make their own voltage. Without seeing the whole board I can’t tell for sure but I think this one is powered from the motherboard from what I am seeing. In any case. Just leave the motherboard at auto. Unless it isn’t setting the voltage correctly or something.

Sphere478 wrote on 2022-10-15, 19:21:

I believe that card is set up to tell the motherboard the voltage your are setting and the motherboard does the work. Kinda like auto detection but it detects is what you set on the slotket.

There are versions that actually make their own voltage. Without seeing the whole board I can’t tell for sure but I think this one is powered from the motherboard from what I am seeing. In any case. Just leave the motherboard at auto. Unless it isn’t setting the voltage correctly or something.

you mean set the SLOTKET to Auto and adjust the Voltage on the motherboard?

itsgallus wrote on 2022-10-15, 19:34:

Sphere478 wrote on 2022-10-15, 19:21:

I believe that card is set up to tell the motherboard the voltage your are setting and the motherboard does the work. Kinda like auto detection but it detects is what you set on the slotket.

There are versions that actually make their own voltage. Without seeing the whole board I can’t tell for sure but I think this one is powered from the motherboard from what I am seeing. In any case. Just leave the motherboard at auto. Unless it isn’t setting the voltage correctly or something.

you mean set the SLOTKET to Auto and adjust the Voltage on the motherboard?

Other way around. Is what I meant but I mean either way is fine though. If there is no voltage regulator on the slotket then however the regulator on the motherboard gets the signal doesn’t matter, so whatever is the easiest for you.

It’s been a while, but basically what I recall is there are like 4 or so binary pins (high or low) that program the regulator on the motherboard. The motherboard can over ride this in bios sometimes if equipped. But the slotket just intercepts the signals coming from the processor and allows you to set it manually.

Just confirm your voltage with a volt meter. 😀

Re: Socket 370 Tweaker

I’ve been slowly collecting info on this for a future project. Some resources if you want to learn more.

ok Id say it's easier to set the jumpers to the correct voltages on the Slotket itself. But at the moment my board is running a P3 III with a voltage of 2.05V I don't trust the down conversion to be honest.

Okay, so you probably would set the board to auto and then set your voltage on the slotket.

Use a volt meter to confirm it was set properly.

all I get are some 3sec long repeating beeps now. I tried first with dip settings on the slotket and and after that I switched to Auto on the slotket. There is no such setting on the mainboard "auto". I changed there the settings to 1.65V core.

What settings worked before?

well before I had a Pentium 3 600hz with 2.05v. then I set the Vcore down to 1.65v and I showed up as a 400mz. I can't change the Multiplier. There is a Jumperfree mode on the board where the DIP Switches all have to be off to be working properly. But then again Note sure what AGP Voltage it will take and which system bus.

Is a CMOS reset (taking battery out) necesseray after a CPU Change?

It might be.

Sounds like jumper free may be the auto mode.

Unless you know what you're doing (i.e. you're trying to overvolt/undervolt the CPU), the voltage should be set to auto on the slotket, which means that the CPU will send its default voltage request signal to the motherboard and the motherboard will provide said voltage.
If the motherboard can't provide the required voltage (which is usually the case with Coppermine CPUs and some older 440BX motherboards that only support voltages down to 1.8V), the CPU will remain unpowered and, naturally, you will not get a POST.

Regarding multipliers - all of these CPUs have a factory hard-locked multiplier, so it doesn't matter what multiplier you set on the motherboard itself.
If your Pentium 3 600 booted at 400 MHz, that means the FSB was set at 66 MHz on the motherboard (again, the multiplier is fixed and can't be changed no matter what you try).

bloodem wrote on 2022-10-16, 17:17:

Unless you know what you're doing (i.e. you're trying to overvolt/undervolt the CPU), the voltage should be set to auto on the slotket, which means that the CPU will send its default voltage request signal to the motherboard and the motherboard will provide said voltage.
If the motherboard can't provide the required voltage (which is usually the case with Coppermine CPUs and some older 440BX motherboards that only support voltages down to 1.8V), the CPU will remain unpowered and, naturally, you will not get a POST.

thx for your anwser. It's just that I can really set my mobo in auto mode. I have the possibility to set the clock speeds via Dipswitches or then jumperfree mode (all dipswitches must be OFF) which allowes me to change the values manually via bios. But I just don't know what the default settings are when I boot it up like that?! Maybe the boards boots then in 2.05V and fries my Coopermine so then I was thinking might be good to set the 1.65V on the Slotket itself to avoid overvolting

itsgallus wrote on 2022-10-16, 17:57:

Maybe the boards boots then in 2.05V and fries my Coopermine so then I was thinking might be good to set the 1.65V on the Slotket itself to avoid overvolting

No, that's not how it works. In auto mode, without any external override, the board will provide the voltage that the CPU itself requests - no more, no less.
My suggestion is to insert the CPU, clear the CMOS and power on the board.

bloodem wrote on 2022-10-16, 18:44:

itsgallus wrote on 2022-10-16, 17:57:

Maybe the boards boots then in 2.05V and fries my Coopermine so then I was thinking might be good to set the 1.65V on the Slotket itself to avoid overvolting

No, that's not how it works. In auto mode, without any external override, the board will provide the voltage that the CPU itself requests - no more, no less.
My suggestion is to insert the CPU, clear the CMOS and power on the board.

and is it safe to activate at the same time the jumperfree mode ? could be this the auto mode of the mobo?

Yes, perfectly safe. Again, the CPU is in control, since it tells the motherboard what voltage it needs and if the motherboard can’t provide it… no voltage will be supplied to the CPU.

bloodem wrote on 2022-10-16, 18:44:

itsgallus wrote on 2022-10-16, 17:57:

Maybe the boards boots then in 2.05V and fries my Coopermine so then I was thinking might be good to set the 1.65V on the Slotket itself to avoid overvolting

No, that's not how it works. In auto mode, without any external override, the board will provide the voltage that the CPU itself requests - no more, no less.
My suggestion is to insert the CPU, clear the CMOS and power on the board.

My understanding of the slotkets is if you set the slotket to a specific voltage the board will see what you set as if the cpu it’s self was requesting that voltage. (The board can’t tell it isn’t the cpu asking) Unless the slotket has a auto mode in which case it is just passing the cpu voltage request signals through. And it actually is reading the cpu.

This all flies out the window if the slotket has its own vrm, which I don’t think OPs does. In such a case, the mobo is removed from the equation and all the magic happens on the slotket.

Little bit of a tangent, was it ever determined how intel locked the multiplier on these cpus? The ES had them unlocked did they not?

Sphere478 wrote on 2022-10-16, 23:24:

My understanding of the slotkets is if you set the slotket to a specific voltage the board will see what you set as if the cpu it’s self was requesting that voltage. (The board can’t tell it isn’t the cpu asking) Unless the slotket has a auto mode in which case it is just passing the cpu voltage request signals through. And it actually is reading the cpu.

Of course, that's why I said "in auto mode, without any external override". 😀
If you set the slotket to a specific voltage... that counts as a voltage request signal override. 😀

Sphere478 wrote on 2022-10-16, 23:24:

This all flies out the window if the slotket has its own vrm, which I don’t think OPs does. In such a case, the mobo is removed from the equation and all the magic happens on the slotket.

Yes, those are very rare and crazy expensive (a boxed Powerleap PL-IP3/T just sold on eBay for 600+ US dollars... crazy!)

👍 🙂

thx guys it works perfectly now in free jumper mode. It seems that my Slot 1 port had simply a bit wobbly contact. I had to replug the card a few times and it posted!!

But also it's been a while since I changed a cpu. I thought I had to preconficure the VCore settings before which got me bit worried 😁