Hi,
Looking for a little help, as I'm stumped. I've noticed my P4 530 (Prescott) has been running at 2009 MHz, rather than the 3015 MHz at which it should run (this has been checked using Everest, CPU-Z, and other diagnostic tools under OS X). I've updated the bios, reinstalled the chipset drivers, reset the bios, switched to the backup bios, and so forth. Nothing I do seems to have any impact on the CPU speed.
I've booted into OS X (10.4) and the "About this computer" dialog also lists the speed as 2GHz.
Just moments ago I took the machine apart and put it back together - everything is seated correctly and has been dusted. Having changed nothing in the bios between when it was running at 2009 MHz and now, the clock speed has dropped again - it's now running at 1.51 MHz.
CPU-Z tells me the FSB speed is only 400MHz and the multiplier 100. I've attempted to "overclock" the machine using the godawful Gigabyte tweaker, which simply resulted in hard crashes each time.
The bios MIT system doesn't let me specify anything but an arbitrary speed setting (CIA2 - cruise, turbo, full thrust, etc) and the CPU host controller rate - these settings have no impact on clock rates as far as I've seen.
SpeedStep isn't supported on this CPU, and the power management setting in XP is set to "always on".
I've searched and searched for a similar situation, but the solution for every similar problem I've seen has been "turn off SpeedStep" or somesuch.
Any thoughts would be much appreciated.
Thanks in advance,
Looking for a little help, as I'm stumped. I've noticed my P4 530 (Prescott) has been running at 2009 MHz, rather than the 3015 MHz at which it should run (this has been checked using Everest, CPU-Z, and other diagnostic tools under OS X). I've updated the bios, reinstalled the chipset drivers, reset the bios, switched to the backup bios, and so forth. Nothing I do seems to have any impact on the CPU speed.
I've booted into OS X (10.4) and the "About this computer" dialog also lists the speed as 2GHz.
Just moments ago I took the machine apart and put it back together - everything is seated correctly and has been dusted. Having changed nothing in the bios between when it was running at 2009 MHz and now, the clock speed has dropped again - it's now running at 1.51 MHz.
CPU-Z tells me the FSB speed is only 400MHz and the multiplier 100. I've attempted to "overclock" the machine using the godawful Gigabyte tweaker, which simply resulted in hard crashes each time.
The bios MIT system doesn't let me specify anything but an arbitrary speed setting (CIA2 - cruise, turbo, full thrust, etc) and the CPU host controller rate - these settings have no impact on clock rates as far as I've seen.
SpeedStep isn't supported on this CPU, and the power management setting in XP is set to "always on".
I've searched and searched for a similar situation, but the solution for every similar problem I've seen has been "turn off SpeedStep" or somesuch.
Any thoughts would be much appreciated.
Thanks in advance,