Asus A8R-MVP: Board Layout
The box for the Asus A8R-MVP is dark grey and strewn with confetti, perhaps to announce the party inside, but it is certainly not a serious package like we see on the top-line Asus boards.
Click to enlarge.
Nonetheless, all the top Crossfire AMD features are there, such as dual x16 PCIe slots that support a single x16 video card or dual x8 Crossfire.
Just as important are the SB450 south bridge limitations that are not here. The Asus A8R-MVP is the first board that we have reviewed that uses the ULi M1575 south bridge instead of the SB450. This means full support for 4 SATA2 devices, and fully competitive USB performance with 8 USB 2.0 ports.
The ULi M1575 also has the necessary hooks to support Azalia HD audio, like the ATI solution. Asus has chosen the Analog Devices Azalia High Definition AD1986A audio chip to drive 6 channels of High Definition Audio. You can find more information on the Analog Devices HD Audio AD1986a at
http://www.analog.com/en/prod/0,2934,AD1986A,00.html.
The A8R-MVP uses a simple slot insert that Asus calls MVP for x16 and dual x8 switching. This is the same simple arrangement that we saw on early ATI Reference boards. The card goes into the slot nearest to the CPU for x16 mode and is removed for dual x8 Crossfire. There are no complicated internal switches as we've seen on some other Crossfire boards, which may be one of the reasons for the excellent overclocking that we see on this Asus.
Click to enlarge.
The basic layout of the A8R-MVP is typically Asus, meaning that the layout overall is very good. Cooling is passive - there are no active fans - which is also typical of Asus designs. You will notice that there is nothing on the board which would announce that this might be a serious overclocker, except perhaps for the large heatsink covering the power Mosfets. Even here, we see a 3-phase design instead of the robust 4-phase designs used on the ATI Reference boards.
The 4-pin 12V and 24-pin ATX power connectors are at the preferred location on board edges. There is no need to snake cables over the CPU or slots when this location is used. The 4 DIMMs are also color-coded for Dual-Channel: the blue slots are one channel and the black slots are the other. When running 2 DIMMs, this alternate spacing makes it easier to keep the DIMMs cool.
A single video card goes in the blue slot, so even if it's double-width, you still have a usable PCIe x1 and 2 PCI slots. In the worst dual video arrangement of two double-width cards, you still have 2 usable PCI slots. If the cards are single width, you gain a PCIe x1 and another PCI slot.
Asus does not include an additional SATA2 controller on the A8R-MVP, but it really isn't needed. The ULi M1575 provides four SATA2 ports that can be combined up to RAID 5 if you choose.
IDE and floppy connectors are ideally located on the right edge of the board - where they belong. However, they are really strewn all the way across the right board edge instead of being concentrated in the upper right quadrant. The lower IDE and floppy connectors are card-edge connectors, which keep cables out of the way of cards. However, you may want to connect these card-edge cables before securing the board in your case - especially in a tight case design. You shouldn't have an issue with IDE, floppy, or SATA connector placement, but look carefully at how cables will be managed in any case that you are considering.
This may be a mainstream board, but Asus still includes IEEE1394 Firewire and HD audio. There are also 6 jack-sensing connectors driven by the HD audio chip and a coaxial SPDIF port.
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Wesley Fink - Wednesday, November 23, 2005 - link
Theoretically nVidia SLI can run on ATI crossfire without much trouble. We have tested hacked drivers that do just this and it appears to work fine. However, until nVidia allows Crossifire board operation in their video drivers it is officially not supported. The same goes for ATI Crossfire on nVidia - ATI has to support it in their drivers. Single video cards are supported on all platforms.As for avaialability of X1800XT, our video reviewer received a review sample about 6 weeks ago, but we have not seen another X1800XT from ATI. The X1800XT was to be available for sale November 5. ATI tells us daily there are none available for sampling, but we can expect a unit for motherboard testing "very soon".
shabby - Wednesday, November 23, 2005 - link
Geez if your having this much trouble getting a x1800xt i wonder when you'll recieve the crossfire ones.Schro - Wednesday, November 23, 2005 - link
Has Asus stated the general availability date of the board? The only vendor that I can find with it listed is ZZF @ $199 for a pre-order, which is certainly not a mainstream price.Wesley Fink - Thursday, November 24, 2005 - link
I just did a search on Google's Froogle at http://froogle.google.com/froogle?q=A8R-MVP+&b...">http://froogle.google.com/froogle?q=A8R...;btnG=Se.... There are 4 listings for the A8R-MVP - buy.com for $104.99, Computer Brain for $108.21, PC & Stuff for $115.94, and PCSuperDeals for $119.15. These prices are very much in line with what Asus projected - in fact they are even better. A Crossfire motherboard with these features for $105 is a terrific value.Wesley Fink - Wednesday, November 23, 2005 - link
We confirmed final pricing with Asus yesterday. They told us the board should sell initially in the $115 to $125 range. Obviously a new board, a good review and limited availability drive up the price in capitalism. Asus confirmed last evening the boards have shipped from Taiwan to US e-tailers and should begin appearing for sale Friday or Monday (November 25th or 28th).Live - Wednesday, November 23, 2005 - link
This board is listed for pre-order from several e-tailers here in Europe at just the price range ASUS is suggesting.Calin - Wednesday, November 23, 2005 - link
it's nowhere near the $100-$125 suggested by the article... but the price will fall when availability increasesOrSin - Wednesday, November 23, 2005 - link
Poster before me hit it right on the head. My next motherboard will most likely be one of these ATI boards but it seems this was fluck to me. I guess we can wait for other sites to seee if they get similar results.poohbear - Wednesday, November 23, 2005 - link
excuse me, great review, but when presuming that this board is not a fluke u state:"based on the Asus expectations being set very low for this board, and the genuine surprise that Asus expressed when we reported our results, I would venture to say that what we found is not a fluke."
how are the 2 aforementioned reasons related to it NOT being a fluke? i was a bit confused reading that. if a mobo manufacturer's expectations are low, and then they're surprised, would'nt that mean that this mobo might on the contrary, be a fluke?
Wesley Fink - Wednesday, November 23, 2005 - link
I receive some emails complaining that I must receive "Cherry" motherboards for testing since my OC results are so high. Of course, part of my success is due to being a long-term overclocker, and overall my results have not noramlly been that different than what other experienced overclockers found on retail boards.In this case Asus positioned this as a mainstream board and advised us the board was not positioned as a top overclocker. The ATI Crossfire chipset is an outstanding overclocker and I believe this board, with the design efforts of a talented design team turned out to be a surprising overclocker and that retail boards will also. I really don't think Asus as a company considered that this might be a top overclocker, but certainly someone in Asus design did consider this with the BIOS options that are available.
The first BIOS was not particularly good for overclocking, but version 2 and 3 are outstanding. We have seem many manufacturers, even tier 1, design boards for overclockers that were mediocre in performance. We have also seen boards that had a solid design but no great OC credentials rise to the top as a great overclocker. In fact, Asus has had a number of this type of "wolf in sheep's clothing" boards over the past few years.