Question Increasing FSB frequency ?

[koilada]

There is an old Sempron x2 190. As you may know it's locked. I have no idea about ο/c, but need more power. Is it ok to increase FSB from 200 to 230? Without any other changes.

Now its 2.5 GHz, how many will it be if FSB is increased to 230?

 

[CountMike]

There is an old Sempron x2 190. As you may know it's locked. I have no idea about ο/c, but need more power. Is it ok to increase FSB from 200 to 230? Without any other changes.

Now its 2.5 GHz, how many will it be if FSB is increased to 230?

FSB also changes RAM and PCI(e) speeds which includes storage controllers so if your BIOS supports it you have to limit those to their default values or corruption is more than possible.
Frequency = FSB * Multiplier.

 

[koilada]

FSB also changes RAM and PCI(e) speeds which includes storage controllers so if your BIOS supports it you have to limit those to their default values or corruption is more than possible.
Frequency = FSB * Multiplier.

Ιs there any safe value which does not change other speeds and does not require more volts?
Multiplier is locked in this cpu.

 

[CountMike]

Ιs there any safe value which does not change other speeds and does not require more volts?
Multiplier is locked in this cpu.

From other, speeds for PCI/PCIe and storage don't tolerate more than 1-2% higher frequency and RAM may run into it's OC capabilities, specially if DDR2. CPU itself may not respond well to OC as it's one reason for locked multiplier and is poor cousin to Athlon it's stems from. Essentially just a waste from Athlon production.

 

[koilada]

From other, speeds for PCI/PCIe and storage don't tolerate more than 1-2% higher frequency and RAM may run into it's OC capabilities, specially if DDR2. CPU itself may not respond well to OC as it's one reason for locked multiplier and is poor cousin to Athlon it's stems from. Essentially just a waste from Athlon production.

Its with DDR3. Mobo Gigabyte has a gadget (Easy Tuner) to increase fsb from Windows.
Do you think it will be ok to set it to 230? (image is from another pc)

 

[CountMike]

Its with DDR3. Mobo Gigabyte has a gadget (Easy Tuner) to increase fsb from Windows.
Do you think it will be ok to set it to 230?

Possibly if you can keep other parameters at stock values but also closely related to "silicone lottery", how well particular sample came from under the press. Personally, I used FSB for OC only for fine tuning, never too aggressive. That means 201 to max 210MHz.

 

[koilada]

Possibly if you can keep other parameters at stock values but also closely related to "silicone lottery", how well particular sample came from under the press. Personally, I used FSB for OC only for fine tuning, never too aggressive. That means 201 to max 210MHz.

Well, before I make this thread I saw this post from someone who had the same cpu. He said "After some pathetic attempts I would only get it up to 2.8 ghz by increasing the FSB/Bclk to 230. Anything past that does not make the PC boot."
So that's what I'm planning to do too, but before proceed I wanted to be sure that system won't get stuck.
201 to 210 looks like a tiny increase.

 

[CountMike]

Well, before I make this thread I saw this post from someone who had the same cpu. He said "After some pathetic attempts I would only get it up to 2.8 ghz by increasing the FSB/Bclk to 230. Anything past that does not make the PC boot."
So that's what I'm planning to do too, but before proceed I wanted to be sure that system won't get stuck.
201 to 210 looks like a tiny increase.

Well, you can only try and see how far it gets you. That's only software so there should not be any lasting effects on BIOS. Main danger is from too high voltage and heat for which those older CPUs didn't have as much protection.

 

[koilada]

Well, you can only try and see how far it gets you. That's only software so there should not be any lasting effects on BIOS. Main danger is from too high voltage and heat for which those older CPUs didn't have as much protection.

Cpu has a large 3d party heatsink. I' ll give it a try and tell you what happened.

But you said that software won't effect bios?? This means I' ll have to use it each time I open pc?

 

[CountMike]

Cpu has a large 3d party heatsink. I' ll give it a try and tell you what happened.

But you said that software won't effect bios?? This means I' ll have to use it each time I open pc?

I think it has to run with windows, but once you find exact values that are successful you can make them in BIOS.

 

[koilada]

Ok, so I tried. Thanks to that "EasyTune6" program I can trial and error without mess and reset bios.
With fsb to 220 or 218 I get a bsod. With 215 its stable and I get cpu from 2,5 to 2,7GHz and ram from 1600 to 1720 MHz.
That's dissapointing
Thanks for your help!

 

[CountMike]

Ok, so I tried. Thanks to that "EasyTune6" program I can trial and error without mess and reset bios.
With fsb to 220 or 218 I get a bsod. With 215 its stable and I get cpu from 2,5 to 2,7GHz and ram from 1600 to 1720 MHz.
That's dissapointing
Thanks for your help!

That's pretty well expected, that's why it's Sempron and not Athlon. I remember when I had Athlon XP 3000+ with Barton core, unlocking it using ordinary pencil and overclocking it to almost twice it's original frequency.

 

[koilada]

That's pretty well expected, that's why it's Sempron and not Athlon. I remember when I had Athlon XP 3000+ with Barton core, unlocking it using ordinary pencil and overclocking it to almost twice it's original frequency.

Really? I once had Athlon XP 3200+, the most expensive in its category back then (2004), but not so great in fact.
Finally I burned it one year later 😆 Can't remember the reason, but really got fire. Then I got an Athlon 64 3200+. I only use AMD