Can I get higher OC with this setup?

I have:

Asus P4B533-V
BIOS 1002 (will update to 1008 soon)
P4 1.8a
Samsung orgial DDR333 PC2700 512 MB

Currently running:
147 FSB
4:5
1.575 Vcore setting (but BIOS MB monitor says 1.6 vcore)
Voltage on mem is "AUTO" setting

Water cool:
idle: 33C - 35C
Load: 39C - 41C

Can I get more OC from my hardware? I'm having a hard time getting passed 147FSB. Is my RAM holding me back?
What setting do I need to try?
I'm in the process of looking up the step of my cpu.

THX

I Tested many 1.8A CPU, and FSB147 is high enough.
Once change mem setting to 1:1 or raise mem volatage.

If the result do not change, maybe FSB 147 is limit of CPU

147 FSB and a 4:5 memory setting means memory is running at 366 or 367 MHz, but it's DDR333. Big problem. Try running 1:1; that would mean memory would be at 294, and wouldn't be a concern while you tried to push the chip and the FSB higher.

JKeefe said:

147 FSB and a 4:5 memory setting means memory is running at 366 or 367 MHz, but it's DDR333. Big problem. Try running 1:1; that would mean memory would be a 294, and wouldn't be a concern while you tried to push the chip and the FSB higher.

Click to expand...

I did run it at 1;1...and not much higher than 147...I think this is its max since it's not even a C1 stepping cpu