The CPU does not have a multiplier. It runs at whatever frequency the board runs it at.
If you can not set a higher speed on the board your best bet is overclocking by changing out whatever generates the clock (most often an oscillator can).

Doornkaat wrote on 2021-10-02, 20:12:

The CPU does not have a multiplier. It runs at whatever frequency the board runs it at.
If you can not set a higher speed on the board your best bet is overclocking by changing out whatever generates the clock (most often an oscillator can).

Two of the oscillators onboard are of 64 and 48 MHz 🤷🏼‍♂️🤷🏼‍♂️
The memory access speed is set at 100ns.

Thank you for your reply!

Often one of the oscillators is for deturbo mode, the other for regular mode.
Is it possible you're running the PC in deturbo mode?

As always good pictures help in figuring out what's going on.😉

Doornkaat wrote on 2021-10-02, 20:12:

The CPU does not have a multiplier. It runs at whatever frequency the board runs it at.
If you can not set a higher speed on the board your best bet is overclocking by changing out whatever generates the clock (most often an oscillator can).

This particular model was only sold as a 286/16, no other cpu options were available. So oscillators should be the right ones for 16MHz.
The strange thing is that OP cannot set the speed to 16MHz in BIOS, but I'm not familiar with its BIOS screens. Perhaps some photos could help.

konc wrote on 2021-10-03, 07:35:

Doornkaat wrote on 2021-10-02, 20:12:

The CPU does not have a multiplier. It runs at whatever frequency the board runs it at.
If you can not set a higher speed on the board your best bet is overclocking by changing out whatever generates the clock (most often an oscillator can).

This particular model was only sold as a 286/16, no other cpu options were available. So oscillators should be the right ones for 16MHz.
The strange thing is that OP cannot set the speed to 16MHz in BIOS, but I'm not familiar with its BIOS screens. Perhaps some photos could help.

https://drive.google.com/file/d/1Mpoo-ALs6BP4 … ew?usp=drivesdk

AndalusianRG wrote on 2021-10-03, 07:54:

konc wrote on 2021-10-03, 07:35:

Doornkaat wrote on 2021-10-02, 20:12:

The CPU does not have a multiplier. It runs at whatever frequency the board runs it at.
If you can not set a higher speed on the board your best bet is overclocking by changing out whatever generates the clock (most often an oscillator can).

This particular model was only sold as a 286/16, no other cpu options were available. So oscillators should be the right ones for 16MHz.
The strange thing is that OP cannot set the speed to 16MHz in BIOS, but I'm not familiar with its BIOS screens. Perhaps some photos could help.

https://drive.google.com/file/d/1Mpoo-ALs6BP4 … ew?usp=drivesdk

So it's not not a PC3286 as you wrote in your initial post which does have a 16MHz CPU, but a PC2286 as the BIOS says with a 12MHz CPU 😁

konc wrote on 2021-10-03, 08:15:

AndalusianRG wrote on 2021-10-03, 07:54:

konc wrote on 2021-10-03, 07:35:

This particular model was only sold as a 286/16, no other cpu options were available. So oscillators should be the right ones for 16MHz.
The strange thing is that OP cannot set the speed to 16MHz in BIOS, but I'm not familiar with its BIOS screens. Perhaps some photos could help.

https://drive.google.com/file/d/1Mpoo-ALs6BP4 … ew?usp=drivesdk

So it's not not a PC3286 as you wrote in your initial post which does have a 16MHz CPU, but a PC2286 as the BIOS says with a 12MHz CPU 😁

It's a PC3286, but it seems I'm not using the proper SETUP 😅
https://drive.google.com/file/d/1MtwdO9q8av7b … ew?usp=drivesdk

AndalusianRG wrote on 2021-10-03, 08:23:

konc wrote on 2021-10-03, 08:15:

AndalusianRG wrote on 2021-10-03, 07:54:

https://drive.google.com/file/d/1Mpoo-ALs6BP4 … ew?usp=drivesdk

So it's not not a PC3286 as you wrote in your initial post which does have a 16MHz CPU, but a PC2286 as the BIOS says with a 12MHz CPU 😁

It's a PC3286, but it seems I'm not using the proper SETUP 😅
https://drive.google.com/file/d/1MtwdO9q8av7b … ew?usp=drivesdk

Come on help us a bit more here, we keep trying to guess! So you run the setup from a disk? If so then yes, you need the correct disk to show you the options for your model. You hadn't noticed until now or you thought it would work?

konc wrote on 2021-10-03, 08:34:

AndalusianRG wrote on 2021-10-03, 08:23:

konc wrote on 2021-10-03, 08:15:

So it's not not a PC3286 as you wrote in your initial post which does have a 16MHz CPU, but a PC2286 as the BIOS says with a 12MHz CPU 😁

It's a PC3286, but it seems I'm not using the proper SETUP 😅
https://drive.google.com/file/d/1MtwdO9q8av7b … ew?usp=drivesdk

Come on help us a bit more here, we keep trying to guess! So you run the setup from a disk? If so then yes, you need the correct disk to show you the options for your model. You hadn't noticed until now or you thought it would work?

I run it from the only SETUP I found on internet : http://www.freetimeweb.nl/home/computer/alt/l … awson/atpcs.htm
Unfortunately I don't own the original disk... :'(

AndalusianRG wrote on 2021-10-03, 08:40:

I run it from the only SETUP I found on internet : http://www.freetimeweb.nl/home/computer/alt/l … awson/atpcs.htm
Unfortunately I don't own the original disk... :'(

CTRL+ALT+S doesn't work?

konc wrote on 2021-10-03, 08:44:

AndalusianRG wrote on 2021-10-03, 08:40:

I run it from the only SETUP I found on internet : http://www.freetimeweb.nl/home/computer/alt/l … awson/atpcs.htm
Unfortunately I don't own the original disk... :'(

CTRL+ALT+S doesn't work?

It doesn't, for no reason.

AndalusianRG wrote on 2021-10-03, 08:56:

konc wrote on 2021-10-03, 08:44:

AndalusianRG wrote on 2021-10-03, 08:40:

I run it from the only SETUP I found on internet : http://www.freetimeweb.nl/home/computer/alt/l … awson/atpcs.htm
Unfortunately I don't own the original disk... :'(

CTRL+ALT+S doesn't work?

It doesn't, for no reason.

OK there's something weird going on here, the 3xxx series can access the BIOS even by pressing DEL at the startup, you don't need a setup disk for it and that's the reason you cannot find any mention of one anywhere. Have you checked the PC inside to make sure it looks like a 3286? I don't have any other ideas.

konc wrote on 2021-10-03, 09:01:

AndalusianRG wrote on 2021-10-03, 08:56:

konc wrote on 2021-10-03, 08:44:

CTRL+ALT+S doesn't work?

It doesn't, for no reason.

OK there's something weird going on here, the 3xxx series can access the BIOS even by pressing DEL at the startup, you don't need a setup disk for it and that's the reason you cannot find any mention of one anywhere. Have you checked the PC inside to make sure it looks like a 3286? I don't have any other ideas.

It has a 286-16 processor...I don't know what else I can tell 🙁

konc wrote on 2021-10-03, 09:01:

AndalusianRG wrote on 2021-10-03, 08:56:

konc wrote on 2021-10-03, 08:44:

CTRL+ALT+S doesn't work?

It doesn't, for no reason.

OK there's something weird going on here, the 3xxx series can access the BIOS even by pressing DEL at the startup, you don't need a setup disk for it and that's the reason you cannot find any mention of one anywhere. Have you checked the PC inside to make sure it looks like a 3286? I don't have any other ideas.

https://drive.google.com/file/d/1MtwdO9q8av7b … iew?usp=sharing
Here it says the computer is a 3286.

What speed are utilities like checkit, norton sysinfo, landmark speed test, ... reporting the cpu to be running at at the moment?

weedeewee wrote on 2021-10-03, 10:00:

What speed are utilities like checkit, norton sysinfo, landmark speed test, ... reporting the cpu to be running at at the moment?

I definitely should try some of those utilities. Maybe it's running at 16MHz despite that the BIOS sets it at 12.

AndalusianRG wrote on 2021-10-03, 10:18:

weedeewee wrote on 2021-10-03, 10:00:

What speed are utilities like checkit, norton sysinfo, landmark speed test, ... reporting the cpu to be running at at the moment?

I definitely should try some of those utilities. Maybe it's running at 16MHz despite that the BIOS sets it at 12.

Considering the setup program you are using was for a different computer that only went to 12 MHz...

weedeewee wrote on 2021-10-03, 10:57:

AndalusianRG wrote on 2021-10-03, 10:18:

weedeewee wrote on 2021-10-03, 10:00:

What speed are utilities like checkit, norton sysinfo, landmark speed test, ... reporting the cpu to be running at at the moment?

I definitely should try some of those utilities. Maybe it's running at 16MHz despite that the BIOS sets it at 12.

Considering the setup program you are using was for a different computer that only went to 12 MHz...

With 3DBench it appears 9.7 FPS. That's a good sign! 😄