Like most computers you cant just throw the peices together and make them work, I sugest isntalling the core drivers before installing any of the other drivers (like install the VIA4in1, MotherBoard BIOS drivers, Mobo Drivers, etc before isntalling sound, video , etc.) also far as the Asus K7V goes, it's main purpose isnt as good anymore (if you are refering to the Duron/Tbird Mobo) since AMD is removing the 3 pins from most durons that allow you to overclock it with the Asus K7V, also the jumpers that allowed you to do it were soldered off in later releases, so it doesnt have it's special overclocking ability, back to the point of 'Classic' Athlons (not Duron or Tbirds) There are two major Chipset Flavors.
AMD 751 aka IronGate
Via Kx133
IronGate is the first chipset for the Athlon, there were other small chipset, none of which seemed impressive, I belive at the time of Athlon's release, AMD just threw together what they could for a chipset, which resulted in several problems, which also bought birth to a BugFix that was marketed as a new Feature, called "Super ByPass" or something along those lines, it helped fixed some incompatibilities, big problems came with using Nvidia Geforce Chips with the IrongGate Boards at AGP2X, so later Nvidia drivers forced cards downto 1X on Irongate boards, the Irongate was a weak job in my opinion so I dont recomend a board with that.
The Kx133 however showed much better improvment despite some incompatibilities nowdays (especially with the Geforce2 GTS) However, it offers AGP4X, and the ability to use PC133 Sdrams. The Epox was the first to come out with the Kx133 attached, however the first doesnt mean it was the best, in fact turned out to be the worst performing Kx133 board at the time, It was either Asus or Abit that got rated for the best kx133 board, I use a Abit KA7 (not the KA7-100 revision, which holds 2 extra ATA/100 ports for ATA/100 drives) It works great, Most of the problems will be found in drivers, ever since Denator 3 came out for Nvidia cards, they've forced cards downto AGP2X , I manage to get my settings back to AGP4X with little problems. This is my current configuration, which works just fine.
Amd Athlon 'Classic' 750Mhtz
Abit KA7 (not KA7-100 revision)
512Meg PC100 SDram
23G HDD (10+13)
Elsa Erazor X2 (Geforce DDR)
Sound Blaster Live! Platinum, with Live!Drive
Creative Labs Encore 5XDVD/32XCDrom
Creative Labs Dxr3 DVD/Mpeg/VCD Decoder card
10/100 NIC to connect through my 1.5Mbit Cable modem
56K V.90 External CNet modem Voice/Fax/Data
D-Link 4 port selfpowered USB Hub (host following USB Devices)
Microsoft Intelimouse Explorer
D-Link USB Radio
Kensington VGACam
Supura640 Digital Camera
Iomega Zip100 Drive
Mitsumi 4x2x8 CDrw
Dell DH1025T (17" Monitor with Sony Triniton)
HP692C DeskJet Printer
cooling used:
Heatsink attached to Athlon, no fan on heatsink
CardCooler XT cools the heatsink, rams, chipset, cards, etc
(can be found at cardcooler.com)
2 fans behind CPU blowing air out, each do 42CFM
a Slot fan under the Geforce DDr does 42CFM
a fan in front that blows in, does 42CFM
(the CardCooler XT itself blows 138CFM)
With all this , I have no compatibility problems, it has worked fine with Win98, Win98SE, Win2k (some devices didnt have drivers for Win2k), Linux (even less devices had drivers, but sound and video and cable modem worked fine)
so stay cool B-) and dont drive yourself insane