I finally got SSE3 to work with my Pentium 4 630 3Ghz. I've got a Asus P5GV-MX with 2GB ram and a couple of SATA drives. I'd used this CPU chip on another motherboard with an old Goatsex DVD and had SSE3, but when I bought an ATI X1600 PCIe card I found the old MB had a bad PCIe slot and the onboard sound and X200 were not supported.
Put this rig together and the onboard nic, sound, sata, usb work great. I added a cheap PCI firewire card and have front and back firewire and usb in this Sonata case. The X1600 is supported by Jas 10.4.7 (what a dream job - Jas the Man!). Everything works if I install and just choose the SSE2 patch. The SSE3 patch stopped the machine from booting and I got the blinking cursor. Spend a couple days reading and working on activating the boot partition - that's not it for me.
This motherboard bios has an option under Advanced/CPU Configuration/Max CPUID Value Limit - Mine was enabled. I disabled the option and was able to install 10.4.7 with the SSE3 patch and boot fine. When I re-enabled the option I got Kernal Panics. Cool, turn it off...
The description of the option from ASUS: Enable to Boot Legacy OSes unable to support CPUs with extended CPUID functions.
I guess thats for an OS that doesn't deal with hyperthreading or the prefetch or something?
Now I'm stoked! Got a 91.84 with xBench 1.3 and I'm looking at the Jas 10.4.8 for SSE3 update right now:)
One nice thing about this MB is the F8 option at post brings up a boot selector to choose which drive to boot from. I set up the Mac drive as the default in the bios, but can just choose the WinXP drive on the fly without going into the bios and changing the drive order. No partitions or boot loaders to install, configure and deal with later... You can still use the F8 key for Safe Boot with XP if you wait until the post is done.
I love the Macs, but my old Dual G4 is getting a little long in the tooth and I'm not going to buy a MacIntel until the 3rd generation Intel CPU's are in next spring.
You guys have saved my ass on every turn and decision. I read and read, now I can't stop crowing:)
Hey man, i have the same exact mobo for my Hackintosh. Everything works great, out of the box, u used the jas 1.4.6 insall dvd. yeah at first i was having the same issue, i chose the sse3 patch, and the system didnt boot, i chose the sse2 patch and everything works fine. My cpu is a P4 @2.66ghz it does have sse3. i know that sse3 is working on my install because itunes 7, etc work smooth as butter. (my old install on an AMD64 3000+ sse2 only, was quite slugish and couldnt run itunes 7) Question, have u tried overclocking your P4? i tried going to 3.2ghz, the BIOS saw it, but for some reason the mac wouldnt boot, the HD couldnt be found. went back to 2.66ghz and works just fine. im waiting for the 10.4.8 iso to finish..so i can update, maybe my system profiler will show SSE3...but other than that, this is like having a brand new mac for like $300. keep in mind that im comming from a Tibook 550 and a B&W G3 so this feels extremely fast to me...just out of curiosity what FW PCI card are u using? im in the market for one too...