Can a P3 with Katmai core reach 800Mhz from 500Mhz ?

[Uther]

Hi all my problem is that i have a p3 katmai core normally runinng at 500 Mhz i clocked it at 600Mhz and it goes ok but i want to push it more....what can i do ?
specs
ASUS P3C-E Rambus motherboard i820
udma/66
Matrox G400 MAX 32 mb
128Mb RAMBUS@800MHz
P3 500@600 Mhz
Globalwin VOS32 cooler
Tom Leufkens Aplha Peltier Kit
Sound Blaster live
Micronet LAN 10/100 PCI card
ADAPTEC 2940UW SCSI controller
18GB Quantum Fireball KA Plus 7200
10GB Western Digital Caviar 5400 Udma/66
2GB UW-SCSI IBM DORS-3600
Plextor PX40TS
PlexWriter 12/4/32 SCSI
Creative DVD-ROM 2x (still works fine for me :D)
Acer 50X CDROM
Iomega ZIP ATAPI 100MB

can you help me ?

[Tom]

i have one that goes to 672 but thats alot for the cache that was only rated for 300mhz - 1/2 core speed. those chips were never meant to be ran faster than 600 but 666 is possible try 133x5 @ 2.2v

[patience]

I'm running p3 500 at 620 and seems stable now .. temp at 33 without extra cooler .. mopbo is aopen ax6bc pro

[Daniel R]

The most I ever got out of my 500 Katmai was also 620MHz. Just like the Athlons, I bet a good portion of these have faster cache than the rest. If you can get 800mhz out of a 500 Katmai, bless your hands!