I read this thread often, since like most I am thinking of making the transition upgrade with this board (actually, the
quad-core version if released outside Asia). I would like to share the thought that we really need to encourage VIA to release the PT880/Pro/Ultra NB & SB chipset datasheets. Here's why:
I use VIA chipsets on a couple of old (really old) boards. Yet with the right tweaking, I play Oblivion (1280x1024, high quality settings) on an Abit VP6 (dual 1Ghz Coppermine P-IIIs @ 1.09 146FSB), using an eVGA 6800 GT @ 400/1100, and 1GB Samsung SDRAM @ 2-2-2-5.
Through the use of the datasheets that VIA released to me for this old chipset, and a couple of utilities to tweak both NB and SB, I get a lot of performance that no amount of BIOS, XP, or video card tweaking was able to provide, thus the ability to play a demanding game like Oblivion on such modest HW. I also get stuff like a 90Mb/s burst rate on UDMA 100; the Highpoint RAID (also UDMA 100) bursts to 112 Mb/s. Slow by modern standards, but great for 7-year old junk!
My point is this: mobo mfgrs traditionally do not seem to invest in properly setting up the BIOS to exploit all of the features built into VIA chipsets. I am guessing that at least a few of the issues in this thread could be solved if the data were available.
I have asked the company to release these new datasheets, but no luck so far (even wrote to the President and gave my opinion that the PT880 is either VIA's last gasp, or a first chance at a comeback in mainboards, depending on the support they now provide to enthusiasts). Marketing actually wrote back and timidly agreed, but still no datasheets.
Might I encourage those interested to write VIA using the emails on their site, and/or request the datasheets on the page provided for that? I am guessing they will eventually yield, and we can all start tweaking away (me last, since would still need to get me a board)!