9950 and 995Z is the same thing, and they can only work on AM2+ socket. they are the phenom 1.
while the x4 AM3 is phenom 2, it's compatible on both AM2+ and AM3 socket.![]()

the phenom 2 are definitely on a new level from the phenom 1. phenom 2 can overclock better than phenom 1. just go for phenom 2, phenom 1 are just out now. unless u are going for the x2 7750 or x2 7850. but if you can wait, wait awhile more for phenom 2 dual core.Any difference in terms of performance capability?![]()

the phenom 2 are definitely on a new level from the phenom 1. phenom 2 can overclock better than phenom 1. just go for phenom 2, phenom 1 are just out now. unless u are going for the x2 7750 or x2 7850. but if you can wait, wait awhile more for phenom 2 dual core.![]()
9950 is the 140W TDP iteration of that chip while 995Z is the 125W TDP. Many AM2/AM2+ mobos had issues running the former chip. The performance of even the lowest end Phenom 2 the X3 710 is still better than the highest ebd Phenom 1 the 995Z me thinks but the latter still edges it in encoding/rendering

Few friends warned me that I may find things a little more hazzle as I would need to update CMOS constantly with the Phenom2 set-up for my regular general usage.
there is no need to update CMOS/BIOS constantly. just update ONCE to the required version and VIOLA! you're good to go for a long time.False meaning absolutely not necesary?
Pardon me again but I have been wanting to build a new Intel rig. However, reading so many posts from different threads, I have slowly inclined towards the Phenom2 side. I am a general PC user, main chores including web surfing, Photoshop CS3 for data manipulation, MS Office for work and presentation, video editing from my personal camcorder, photo editing and probably some lite gaming. No plans for OC or CF. My current build of choice is as stated below:
GA-EP45-UD3LR + Q9550
Team Elite DDR2 PC6400 2 x 2GB
WD Green 640GB
Samsung 22x DVDRW SATA
PC HD4830
Ikonik Taran A30 or Asus TA-M11
Seasonic M12-430W
Win XP Pro SP3 or Vista Prem 64bits
Will be using back my VX2260wm display. As I mentioned, I'm slowly inclined toward Phenom2 and I'm also looking at the same set-up as above with the following alteration:
Biostar TA790GX XE (or 128M) + AM3 955
Few friends warned me that I may find things a little more hazzle as I would need to update CMOS constantly with the Phenom2 set-up for my regular general usage.
Appreciate all comments and advices and many thanks!![]()

I felt wierd myself too. Juz to be sure coz it's not one but both of them saying so. They bought PII920 with a DFI mobo together and I think they ran into some trouble during installation and run-in.
Anyhow, is my proposed system above, may it be Intel- or AMD-based good to go? Most probably may go for the Ikonik Taran A30 casing coz of its sleek look. And that's so, should the AMD mobo be a TA790GX XE or TA790GX 128M? Will there be any anticipated heating problem since no OC nor CF will be done?![]()