SiS chipsets and working AGP/PCI locks

[Zap]

I've heard that some of the newer SiS chipsets have working AGP/PCI locks (depending on motherboard manufacturer implementation). For instance, I've heard that the SiS 655FX chipset is such a beast, plus perhaps some of their new A64 chipsets.

I was wondering if lower-end chipsets have a working AGP/PCI lock. For instance, though I've experienced conflicting results, Asus claims that the P4S800 motherboard (SiS 648FX) has an AGP/PCI lock.

I just got a Shuttle SS56G mini system that uses the SiS 661FX chipset for the P4. It has overclocking features in the BIOS such as Vcore to 1.6V (typical limit of SiS chipset boards), 100-255MHz FSB maximum, memory voltage, chipset voltage, AGP voltage. No mention of AGP/PCI speed in BIOS, though I've had Nforce2 Ultra 400 boards that don't mention it in BIOS. Anyone know?

 

[Peter]

Did you know that most of the waaaay earlier SiS chipsets had the capability? Like the 5571, their first single-chip effort from all the way back in the Pentium days, even before Pentium-MMX turned up?

It's quite probable that they dragged this technology along through the years. It's up to the mainboard makers to actually implement it, though.

 

[Zap]

Bah, after only running for a few minutes, my "new" Shuttle SS56G that I bought from Newegg as a refurb died. Was getting ready to install Windows and set some stuff in BIOS, rebooted and... nothing. Fan stays at high speed when normally it kicks down after a second. So much for saving $$$ buying refurb.

 

[o1die]

There's an asus sis board with the 655tx chipset that should have the best overclocking settings. I just got an msi 865pe neo2 LS board from msi as a warranty replacement, and this board runs a 2.8c at 3781 at 1.50 volts. Highest overclock I ever had. The cpu was a Fry's special ($149.99 combo) and I will use the ecs board as a spare.