I think, the easiest one to overclock is using the A7V/A7V133 'cause it's got the 1Mhz increments in the BIOS that let's you overclock a bit at a time... Then again, I'm not much of a overclocker, so in this case, easier might not equal most stable/best...
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AsusTek A7V133 SocketA
AMD Athlon-C 1200Mhz
512MB PC133 NEC Cas2
3DPower GeForce2Pro 64MB
Creative SBLive!Value
LinkSys EtherFast 10/100
Pioneer 104G DVD10X
Plextor 12/10/32X
IBM 75GXP 45GB (x2)
Creative FPS2000 Digital
KDS Avitron 195TF 19"
Win98/2000Pro Dualboot
FAT32
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ECS P6IWP-Fe Socket370
Intel Pentium-III 866
512MB PC133 NEC SDRam
Intel 810E Video
Intel 810E Audio
Intel 810E Network
Generic 48X
IBM 75GXP 75GB
Altec Lansing ATP3
NEC Multisync A700 17"
Win2k Advaned Server NTFS
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Dell Inspiron 5000
Intel P3-700/550
192MB PC100 SDRam
ATI Rage Mobility-P 8MB
ESS Maestro
Toshiba 8X DVD
3Com Cardbus XJack 10/100
IBM DARA-21000 12GB
15" SXGA+ TFT
Altec Lansing ACS33
Win2kPro NTFS
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