I have gotten my 1ghz amd cpu to 1.250 stable with just aircooling.
My system specs are:
AMD 1ghz socket A T-bird (copper)-unlocked by pencil method
Abit KT7-Raid motherboard
Mushkin PC150 mhz HSDRAM-128mb
Alpha Pal6035 with Delta 38cfm fan with Artic Silver
Sparkle 300w power supply
1 Sunon 80mm, 40cfm fan-Case Exhaust, Rear
1 Sunon 80mm, 38cfm fan-Case Intake, Front
Elsa Gladiac Geforce 2 GTS 32mb
3Com NIC
Linksys NIC
Sound Blaster Live X-Gamer
15Gb Western Digital ATA66 hard drive 7200 rpm-Primary Dual Boot with 2
partitions between Win2K and WinME. Attempts are made through WinME.
10 Gb Western Digital ATA66 hard drive 7200 rpm-secondary
8.4 Gb Western Digital ATA 33 hard drive 5400 rpm-extra storage drive
HP9110 series 8x4x32 CD-RW
Floppy 1.44
HHP Colorado Tape Back-up, internal
I plan to go to 1.3ghz here soon , my watercooler system is in the mail.