I am running the following...
Pentium 4 2.53 GHz
ASUS P4T533-C Mobo
Kingston PC1066 Rdram non-ECC 256MB (two of them for a total of 512MB)
ASUS V8460 Ultra (gforce 4 TI4600)
Note, in my discussion below, I have 3 different sets of RAM. Some PC800-45 ram (also from Kingston) and two sets of Kingston PC1066 ram.
It is finally all working well. I had to RMA the MB AND!! the first set of RDRAM. The old motherboard was flaky at x4 (533/1066) speed, and after a few days started having problems with PC800 ram at x3 (400/800). So, I RMA'ed it and had previously RMA'ed the RAM, but I got to keep the old ram temporarily (Kingston was very helpful and agreed to ship out the new ram first and let me ship back the old ram later).
So, got the new mb in, it works fine at x3 with PC800 ram. It does not run stable with my first set of Kingston at x4 (PC1066/533 MHZ), but, it does finally run stable with the second set of Kingston PC1066.
Now, some overclocking info. This system ran very stable with a 140 FSB when I was using the PC800 ram at 3x (at PC840/420), but with the x4 PC1066 (running at PC1120/560) it would have problems in 5-10 min in Prime 95. So I lowered the FSB to 138 and prime 95 ran through the torture test for about 20 hours with no problems. But, after another 15 hours or so (running real prime95 not torture test) it got an error. So, I lowered the FSB to 136 memory still at 4x (PC1088/544) and it has been stable that way.
The ASUS V8460 Ultra video card is working well, no problems whatsoever through all my different configurations. Seems to be fast and stable. I ran 3DMark 2001 SE and got 12081 so I am very happy. Have been playing some Aquanox since it came with the card, and it is getting very good frame rates at 1024x768 with all details on max. So far the ASUS video card has been very good and stable for me.
Let me know if you have any more questions.
Den