In article < .com>, "Eddie
G" <> wrote:
> Which of these 2 mobos is recommended? The Asrock has 4 PCI slots and
> the Asus has 2. But the Asus supports SATA 3 Gb/s where the Asrock is
>
> 1.5.
>
> Any thoughts/suggestions? I just bought a new AGP video card so I do
> not want to buy a PCI Express card, and I still want to use my ATA 133
> (IDE) HD and these boards support both AGP and PCI Express (for when I
> upgrade). I have been pricing barebones systems with these 2 mobos
> with an Intel 820 CPU (along with heat sink and case fans...but no
> other hardware at this time). Memory I'll buy on Ebay, and
> slickdeals.net to find a SATA hard drive when I need one.
>
>
> What web sites do you prefer for buying a barebones system? I do not
> feel comfortable putting a system together myself, and don't know how
> much I'd save anyway. I am comfortable installing hardware, though.
>
> I understand the Asrock supports dual channel memory, yet the Asus
> pci-e slot runs at 16x where the Asrock runs at 4x.
>
> Since I will someday upgrade to pci-e and use my machine for games,
> which is better...the memory or the pci-e slot?
I think you are still missing a point from our last discussion.
The Asus P5V800-MX has an AGP slot and a PCI Express x1 slot. An
x1 slot is not typically used for video. The Asrock board gives
you an AGP slot and a PCI Express x16 physical slot, on which
only x4 lanes are wired. The x16 physical size, is compatible
with the standard PCI Express x16 video cards, and the fact
that only x4 lanes are wired, reduces performance to the 80%
level. In other words, the Asrock board has two video card slots,
while the Asus board only has _one_ video card slot.
Both boards don't run a x16 PCI Express video card, with a full x16
PCI Express lanes. The Asus board, has an x1 PCI Express slot, which
is good for add-in cards like a USB, Ethernet, or disk controller card.
Matrox makes some x1 video cards, so they do exist, but they are not
mainstream, and they are not really a good gamer solution. The
Matrox x1 PCI Express video would be useful for a Photoshop user.
Building a system from parts is not that hard. The motherboard
has two power connectors, a 2x2 and a 20 or 24 pin main power
connector. The PANEL header connects what few two wire devices
that need to be connected. (Power switch, reset switch, speaker,
IDE_activity LED). It is a pretty painless install into
a computer case. Buying a barebones, you are basically giving
some of your money to someone else, for 10 minutes work with
a screwdriver.
A barebones system can fail just as easily as a system constructed
from individual components. You'll get the same (lack of) support
from your barebones vendor, as from your individual parts vendor.
So the same amount of pain there.
You could go with a Dell, but with a Dell, you have to do a lot
of research in advance (if it is even possible), to determine
whether the system is expandable or not. Many pre-built customers
buy "budget" versions of systems, only to find they won't even
take an add-in video card. So, with the Dell/HP/Gateway etc type
systems, you have to spend the extra bucks, to get a decent
power supply, motherboard with proper video card slot and so on.
Overall you save money, but have to suffer with whatever
recovery CD/bundled crapware that comes with the pre-built
machine. (The more closed a system, with weak documentation,
that you buy, the less help you can expect from USENET. Buy a
Dell, rely on Dell tech support.)
Looking on the VIA site, the PT880 Ultra is the best of the bunch,
offering a PCI Express x4 interface and an AGP 8X interface. I
checked uli.com.tw, and for Intel support, they don't have any dual
interface solutions.
http://www.via.com.tw/en/products/ch..._p4-series.jsp
ULI has dual interfaces for Athlon64 (M1695/M1567), and this is
an example. This chipset gives a full x16 PCI Express slot and
an AGP 8X slot. (Find some benchmarking articles about this
board/chipset, before you buy.) The reason this is easier to do on
the AMD side, is AMD embraced a standard interface (HyperTransport),
which allows chips to be connected like Lego. The ULI design has
one chip connected in "tunnel" mode, and you can connect a whole
chain of chips together that way, if necessary. Expect to find more
clever designs on the AMD side, because of HyperTransport.
http://www.asrock.com/product/939Dual-SATA2.htm
On the SIS web site (which I am having trouble reaching at the moment),
the product comparison page doesn't show any chipsets with both
AGP and PCI Express, for the P4. I had to use the IP address of SIS
to get a response. Click four boxes at a time, from the P4 section,
to see what true interfaces are on their chipsets.
http://210.64.125.241/support/support_compare.htm
There will be companies offering motherboards for P4, with both
AGP and PCI Express x16 slots, but the AGP will be faked. Thus, the
AGP performance would suck. The following is an example of a
motherboard with a real PCI Express video slot and a fake
AGP slot. The AGP bandwidth on this solution is severely
reduced. The Foxconn user manual lists AGP video cards that
work, and some cards that are known not to work, with the
bodged AGP slot.
http://www.foxconnchannel.com/picBig...15G7AD-8KS.jpg
So, these are the kinds of motherboards you can get for Intel LGA775
1) LGA775 with true AGP 8X (generally older chipsets, like 865PE)
2) LGA775 with true PCI Express x16 slot (mainstream Intel, lots of them)
3) LGA775 with true AGP 8X and substandard PCI Express (Asrock 775dual
is the best of the bunch, or any other motherboard using PT880 Ultra).
4) LGA775 with fake AGP and true PCI Express x16 slot (bottom feeding
scum make these).
For (3) and (4), expect a lot of dishonesty. You need to read the
manuals, FAQ pages, compatibility pages, user forums etc., to find
out the truth about (3) and (4) types.
My advice:
A) If you are a super cheap-skate, buy the Asrock 775dual. Live
with the reduction in PCI Express performance, when you buy a
fancy PCI Express video card in the future. Bad economy in my
mind, to spend a lot of money on high performance video, then
**** it away by using a weak slot for the card.
B) Buy a motherboard with a proper AGP slot, which can be item (1)
or item (3) in the list above. When the day comes that you buy
that $200 PCI Express video card, spend an extra $50 on a new
motherboard, like an item from (2) above.
HTH,
Paul