Currently I'm trying to figure out a way to replace the Athlon 4 chip in my HP ZE1210.
After hours searching everywhere, I've only come up with limited information.
As far as I can tell the Mobile Athlon 4 identical to the desktop Athlon XP except that the L1 bridges are unlocked, and the default voltage is only 1.4v. Amd claims the mobile chip wont work in a desktop board, although I've heard that they infact will work (so why not a desktop chip in a laptop, if the bios would support it)
Two reasons jump out at me to do this. Obviously one is to install a faster chip in the laptop. Another posibility would be to install a chip of equal or close speed, but running at a much lower voltage such as the XP1600 AGOIA Y I have that runs at 1.0ghz with only 1.1v. The chip will probably need more voltage when in a notebook with a higher operating temperature (very little cooling going on inside a notebook), but I think there is a good bit of room to reduce the voltage dispite this. If this could be done, the lower heat and power draw would be very nice.
From everything I've read, the bridges on the Athlons can only specify a voltage as low as 1.4v (same setting as the mobile xp), although through PowerNow the voltage can scale down to only 1.1v at the lowest overall speed. Is this through modifying the VID in real time (in the same manner the multiplier is changed in real time), or is this simply dependant on the motherboard dropping the voltage? Is the voltage simply fixed on powernow, in which its always at 1.4v when at full speed, then scales back to 1.1v when at 500mhz? Or is it reducing the settings of whats already there? Theres always the option to simply reduce the voltage with a resistor mod on the mobo, although I only want to try that at last resort.
Other thought i had was to increase the fsb to 133mhz on the stock mobile chip, while lowering the multipliers to reflect the same total speed. The lowest cpu speed would then be 665mhz rather than 500mhz, but the overall preformance at any speed would be better.
AMD quotes the 100mhz bus as being "power saving", although the memory is still running at 133mhz, and I question the power saved with just a slower main bus. The new Mobile XP's (.13 micron mobile) run at a 133mhz bus, so why not the older chips?
I'm really wishing I had my old Duron 1ghz, which very easily would make playing with the bridges and testing to see if this could even work.
Sorry for the long post, but its quite a bit of "what if's" for me to figure out.
What do you guys think? Any ideas or knowledge on this?
After hours searching everywhere, I've only come up with limited information.
As far as I can tell the Mobile Athlon 4 identical to the desktop Athlon XP except that the L1 bridges are unlocked, and the default voltage is only 1.4v. Amd claims the mobile chip wont work in a desktop board, although I've heard that they infact will work (so why not a desktop chip in a laptop, if the bios would support it)
Two reasons jump out at me to do this. Obviously one is to install a faster chip in the laptop. Another posibility would be to install a chip of equal or close speed, but running at a much lower voltage such as the XP1600 AGOIA Y I have that runs at 1.0ghz with only 1.1v. The chip will probably need more voltage when in a notebook with a higher operating temperature (very little cooling going on inside a notebook), but I think there is a good bit of room to reduce the voltage dispite this. If this could be done, the lower heat and power draw would be very nice.
From everything I've read, the bridges on the Athlons can only specify a voltage as low as 1.4v (same setting as the mobile xp), although through PowerNow the voltage can scale down to only 1.1v at the lowest overall speed. Is this through modifying the VID in real time (in the same manner the multiplier is changed in real time), or is this simply dependant on the motherboard dropping the voltage? Is the voltage simply fixed on powernow, in which its always at 1.4v when at full speed, then scales back to 1.1v when at 500mhz? Or is it reducing the settings of whats already there? Theres always the option to simply reduce the voltage with a resistor mod on the mobo, although I only want to try that at last resort.
Other thought i had was to increase the fsb to 133mhz on the stock mobile chip, while lowering the multipliers to reflect the same total speed. The lowest cpu speed would then be 665mhz rather than 500mhz, but the overall preformance at any speed would be better.
AMD quotes the 100mhz bus as being "power saving", although the memory is still running at 133mhz, and I question the power saved with just a slower main bus. The new Mobile XP's (.13 micron mobile) run at a 133mhz bus, so why not the older chips?
I'm really wishing I had my old Duron 1ghz, which very easily would make playing with the bridges and testing to see if this could even work.
Sorry for the long post, but its quite a bit of "what if's" for me to figure out.
What do you guys think? Any ideas or knowledge on this?
Facebook
Twitter