Final Words

The Biostar PT880 Pro-A7 Combo is certainly an interesting board due to its ability to bridge the upgrade path from AGP to PCI Express graphics or from DDR to DDR2 memory technology. However, the performance of the board was dismal at best in our benchmarks compared to the more recent Intel and NVIDIA chipsets. The stability of the board with the varying combinations of AGP, PCI, DDR, and DDR2 peripherals was very good at stock or auto settings, but it is definitely not made for enthusiasts.

With that said, let's move on to our performance opinions regarding this board.

In the video area, the inclusion of both a single PCI Express X4 mode slot and an AGP 3.0 slot provides an upgrade path or the ability to use an older AGP based card with your Pentium 4 LGA socket 775 CPU. This setup also allows for dual card operation and provides the ability to operate up to four monitors. While in theory each graphics card should be able to run at full 3D acceleration simultaneously, our limited testing showed that only the primary display adapter chosen in Windows XP was capable of this while the secondary display seemed to run at near or non-3D acceleration the majority of time.

In the on-board audio area, the Biostar board offers the Realtek ALC-655 AC97 audio codec. While the VIA VT8237R chipset fully supports 7.1 audio via the excellent VIA Envy24PT audio controller, Biostar only provided 5.1 AC97 capabilities. The audio output of this codec in the music, video, and DVD areas is decent for an on-board solution. The audio quality in gaming was fair, but it did not match the output of the Sound Blaster X-FI or even the Realtek ALC-882. If you plan on utilizing this board for gaming, and we do not, then our recommendation is to purchase an appropriate sound card for consistency in frame rates and improved audio quality. However, the Realtek ALC-655 should suffice for the majority of home/office users.

In the storage area, the Biostar board offers the standard storage options afforded by the VIA VT8237R. The board offers SATA RAID 0, 1, and 1.5Gb/s support along with dual channel ATA133 Ultra DMA capability. The board also offers eight VIA USB 2.0 ports when utilizing the two USB 2.0 headers. The performance of the VIA SATA and IDE controllers is average and finished near the nForce4 and Intel solutions, though we did not report these results. If you have purchased a SATA 3Gb/s capable drive you will need to be sure to jumper the drive for 1.5Gb/s operation as the VIA VT8237R is not upwardly compatible with the newer SATA 3Gb/s drive designs.

In the performance area, the Biostar PT880 Pro-A7 Combo generated abysmal benchmark scores in the gaming and media encoding areas. The overall performance of the board in other areas was below average at best. The stability of the board was very good during testing. At stock speeds, there were no reported issues, but once we started overclocking the board, it became very easy to crash our system past the 222MHz FSB limit.

The Biostar PT880 Pro-A7 Combo is a board designed and marketed for the Intel user on a very limited budget. Biostar is one of the few manufacturers to market a board with the VIA PT880 PRO solution and as such, it retails for around US $65, which is competitive for the feature set available for a user looking to piece-meal upgrade an older system. The question is, is it really worth considering? We would have to say "no". The PCI Express graphics slot on this board really isn't fast enough to make it a long-term solution.

We feel that Biostar made the following errors in the design and execution of the board. The choice of the Realtek 8201CL 10/100Mb/s PCI Ethernet PHY is a mistake when a PCI Gigabit Ethernet controller is available. Although most home network users might not exceed 100Mb/s operations, the lack of Gigabit Ethernet capability in a board today is a mistake.

The use of the Realtek ALC-655 audio codec is an error when VIA's own Envy24PT solution is readily available at this time. Although the ALC-655 is fine for most users purchasing this board, an upgraded audio solution could not hurt.

We believe that Biostar has done a good job in designing a board based upon the VIA PT880 PRO chipset. At this time, we feel like this is a board that was released for a market that is no longer around. The feature set and performance of the board would have been very good when the 925x and 915 chipsets were released almost two years ago. The ability to run AGP graphics and to utilize existing DDR memory technology with a built-in upgrade path to PCI Express graphics and DDR2 would have been a feature set that most people would have seriously considered or purchased at that time. We believe that anyone currently considering an LGA socket 775 CPU is probably looking for better overall system performance via an upgrade to a recent PCI Express graphics card and performance oriented DDR2 memory.

Sometimes, it is best to endure change.

Audio Performance
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  • Rza79 - Wednesday, March 22, 2006 - link

    I would say the Asus P5VD1-X is a 10x better option than this board.
    - PT880Ultra instead of PT880Pro
    - Asus doesn't use OST caps
    - gigabit lan controller
    - space in between the AGP and PCI-E slot so you can actually put two cards
    - can be found as low as 50 euro

    It would be nice if you reviewed this board too. I used it and it really did good.
  • Marlin1975 - Wednesday, March 22, 2006 - link

    Thats the PT880 board I am running now. It does not have voltage mods for the CPU but I was told the next Bios update will fix that. :)
  • Per Hansson - Tuesday, March 21, 2006 - link

    Gary, sigh, I whined about this in your Epox review and I'll do it in this one too

    The Caps used on the board for the VRM section are excellent brand by United Chemi-Con, for the smaller caps they used the crap-brand OST that will prolly fail within the boards useful life if they are installed in any high ripple areas, which they seem to be (chipset, memory and expansionslots....) Please atleast provide pictures where you can read the make and model of the caps

    Next; PCI-E 4x has low bandwidth; well, compared to AGP 3.0 it is 2.0GB/s, and guess what, AGP 3.0 has 2 GB/s too... So the issue is not with too little bandwidth but something in the implementation...

    Most serious is the fact that there is no mention about the fact that the VT8237R does not support SATA2 harddrives, i.e. they do not work at all with it! Only the VT8237R+ support SATA2 properly, this is a design issue in the following chipsets: VT8237, VT8237R, VT6420 and VT6421L

    http://www.theinquirer.net/?article=24910">http://www.theinquirer.net/?article=24910
  • Rza79 - Wednesday, March 22, 2006 - link

    While i know OST caps are cheap and come from Taiwan, still i have to see a blown up one. Asrock is using them from the start and those first boards are still working good for me. Still, better ones are good but OST isn't crap but just worse. Big difference.

    PCI-E 4x has 2GB/s bandwidth in total, what means 1GB/s per direction. So it can read 1GB/s and write at 1GB/s. Since these stuff are reading most of the time ...
    AGP can use it bandwidth in both directions meaning it can read at 2GB/s or write at 2GB/s. But the benchmarks do show that 1GB/s for reading is just not enough for these highend cards.

    About the Sata2 incompability. The southbridges you mention do have a detection issue. But any Sata2 hdd can be to Sata1 by jumper. When you do that, they will just work. Actually hdd's from Samsung, ... are set to Sata1 by default and have to be set manually to Sata2 by jumper.
    All the lastest Via boards i got from Asus (last month) had the Plus version of the southbridge, so you don't need to bother any longer about it either.
  • Gary Key - Friday, March 24, 2006 - link

    "Next; PCI-E 4x has low bandwidth; well, compared to AGP 3.0 it is 2.0GB/s, and guess what, AGP 3.0 has 2 GB/s too... So the issue is not with too little bandwidth but something in the implementation...

    Most serious is the fact that there is no mention about the fact that the VT8237R does not support SATA2 harddrives, i.e. they do not work at all with it! Only the VT8237R+ support SATA2 properly, this is a design issue in the following chipsets: VT8237, VT8237R, VT6420 and VT6421L "

    The PCI-E 4x comments have been clarified by RZA79 already. Our features chart and text clearly indicated the VIA VT8237R was a SATA 1.5Gb/s controller. However, I obviously did not clearly state this in the article. :) I updated the Final Words section based upon your comments. In our testing with this controller, our Maxtor, WD, Seagate, and Samsung 3Gb/s drives all worked fine with the jumpers set to 1.5Gb/s. Thanks!!!
  • Per Hansson - Wednesday, March 22, 2006 - link

    Yea right, OST is great...

    ASUS P5GDC-V DELUXE LGA775
    http://www.badcaps.net/forum/showth...ghlight=p5gd...">http://www.badcaps.net/forum/showth...ghlight=p5gd...
    Shuttle MS50N s478
    http://www.badcaps.net/forum/showth...highlight=ms...">http://www.badcaps.net/forum/showth...highlight=ms...
    MSI MS-6741 s754
    http://www.badcaps.net/forum/showth...7&highli...">http://www.badcaps.net/forum/showth...7&highli...
    Matsonic MS8318E s462
    http://www.badcaps.net/forum/showth...1&highli...">http://www.badcaps.net/forum/showth...1&highli...

    I had no idea about the PCIe bandwidth info... Interesting to say the least

    And last, I bought a friend a 500GB Seagate Barracuda, it did not get recognized by his mobo (8237 southbridge) I contacted Seagate by phone, the tech said I was supposed to put a jumper between two of the pins, it did not help, so I had to buy him an external controller
  • Per Hansson - Wednesday, March 22, 2006 - link

    Sorry, links trancuated...

    ASUS P5GDC-V DELUXE LGA775
    http://www.badcaps.net/forum/showthread.php?t=843">http://www.badcaps.net/forum/showthread.php?t=843

    Shuttle MS50N s478
    http://www.badcaps.net/forum/showthread.php?t=481">http://www.badcaps.net/forum/showthread.php?t=481

    MSI MS-6741 s754
    http://www.badcaps.net/forum/showthread.php?t=1127">http://www.badcaps.net/forum/showthread.php?t=1127

    Matsonic MS8318E s462
    http://www.badcaps.net/forum/showthread.php?t=251">http://www.badcaps.net/forum/showthread.php?t=251
  • Wonga - Monday, March 20, 2006 - link

    From this review, you can certainly see that AMD made a good choice going for an IMC - relying on VIA, they'd always be in second place.

    Not that VIA chipsets are bad to use, but they certainly aren't the quickest...
  • lemonadesoda - Monday, March 20, 2006 - link

    Something isn't quite right here. If you want to provide an upgrade path for basic users, start with what they have already:

    1./ CPU - 478 (this is an intel example)
    2./ GPU - AGP
    3./ Memory - DDR

    And cost/price of the original components (and their new replacements) IS IN THAT ORDER. What's the point of throwing away your most expensive components and recycling only the lowest value ones? Not much really.

    The design criteria should be to get maximum gain from minimum investment. And to me that would suggest upgrading, in this order:

    A./ Increase memory
    B./ GPU
    C./ Other software or hardware speed-me-ups
    D./ Maybe CPU if you have a pooooor humble one. Either you buy a second hand CPU on ebay, or you might as well start with a brand new up to date platform

    Not on the list, would be to change memory format DDR vs DDR2 (since this ain't going to give you any more practial or noticeable speed)

    Therefore, for the budget conscious upgrader, what is needed is a mainboard that will allow them to do upgrade A and B at minimum cost. ie a mainboard with PCIe16 and socket 478 and SIX DDR memory slots. (SIX Slots allows the upgrader to use existing too-small DDR sticks and add a couple more)

    I believe ASUS and ASROCK did a socket 478 and PCIexpress, but guess what, only 2 RAM slots. Brainless.
  • Missing Ghost - Tuesday, March 21, 2006 - link

    yeah bright, 6 dimms unbuffered memory!

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