Problem upgrading - looking for suggestions.

I have an old Asus A8V-Deluxe I'm upgrading and I'm having some problems after changing the cpu. I had an Athlon 64 3500+ and I'm up'ing it to a FX-60 . After changing, the system looks as follows (nothing overclocked yet):

A8V Deluxe, Bios: 1017.002
2 sticks (1GB) Corsair CMX-512-3200XLPro @ 2-2-2-5 1T, 2.7V
ATI X850 XT, 6.2 Drivers, Arctic Cooling Silencer 5
2 74GB WD Raptors in Raid-0
Audigy 2 Sound Card
1 CD/DVD, 1 Combo Floppy/Misc Media Reader
3 antec 80mm input fans, 2 antec 80mm exhaust fans
Arctic Cooling Freezer 64 Pro ontop of the FX-60
Ultra X-Finity 600W PSU

The Problem:
After upgrading, I tried to do some quick benchmarking. I first tried running 3dmark5 and it ran clean with a 6559 (yea, I know - I'm upgrading the card to a X1950 Pro after I get past this).
Anyway, I then tried to run 3dmark01 - got stuck inbetween tests (black screened) about half way though.
So I figured maybe just bad luck - but I tried again and it did it again, a little further through.
Next, I ran Prime95 - after about 8hours I pulled an error.
Figured it was CPU related since thats what changed and since the older benchmark is problaby more cpu intensive.
I tried uping the voltage to the CPU - default in the Bios was 1.4 and I set it to 1.425.
Ran Prime95 for 24hours after that with no error. Then I reran 3dmark05 clean, ran 3dmark03 (13765), and then tried 3dmark01 - same problem.

Could I have a flaky CPU? When I run games (Oblivion, Medivial Total War II) I have no problems and regular use is just fine. But I'm concerned that if I cant' get 3dmark01 to run, there's some problem that will raise its head when I start overclocking.

I did recheck the specs on my PSU and its only got a single 12V rail and its only rated for 29A - could that be the issue? I know I have to replace it if I upgrade to the X1950 pro as its specifics at least 30A on the 12V.
When I check voltages, overall 12V rail seems stable but I do get some bounce (AsusProbe shows between 12.28 and 11.67, 11.61 and 11.55 with Speedfan), 5.0V rail is pretty rock solid at 5.01 to 4.99, 3.3V rail moves the most frequently of the three - see it go from 3.408 to 3.376 with AsusProbe and 3.34 to 3.39 with Speedfan. By far though Vcore bounces around more frequently then any of them - 1.37 to 1.406 with AsusProbe and 1.39 to 1.44 with Speedfan. Sandra, by the way, shows a snapshot of the rails as
(vcore: 1.44, 3.3: 3.41, 5: 5.05, 12: 15.05?? - that can't be right, can it?).

Anyway, any help appreciated.

Sdrac

1017.002 is the latest version - supposed to support the FX-60. There is a beta for 1018 available but theres no problem description so I don't know if its worth trying.

XP SP2 is what I'm running. Nothing has changed here so I don't think its the OS. I'm going to try uninstalling 3dmark01 and reinstalling it and see if that changes things.

Thx
sdrac

Any suggestions out there?
Not sure what to do next....thx!

Thx Dragon - I bumped it to 2.8 and that did the trick!

Sdrac