Quote:
Originally posted by Austin
:confused: KIUHB seem pretty new, AIUHB and JIUHB were the most common TbredB. TbredB always seemed to be happy at 400FSB+ but many early 400FSB capable mobos had problems running many Barton at 400FSB. Perhaps the KIUHB are marked as such because they can't do 400FSB but it's more likely just that particular CPU or perhaps another factor such as mobo (inc NB cooling), RAM (esp with tight timings), BIOS settings etc. Anyway the diffs between 333FSB and 400FSB aren't very big at all outside of synthetics so 'only' getting 380-390FSB is not going to limit you.
The KIUHB I have has the 'new' packaging - green but you can see some of the traces (i.e from the pins to the actual core) under the surface ('laquer' ?) so maybe that's what the 'K' signifies. I really hope it's not the mobo - I've got pretty good case cooling, have tried the UBER bios (to increase the chipset voltage) and have even tried it in an indentical motherboard (my brothers) - both A7N8X Deluxe V2.0 / Ultra 400 mobos. I know that the mobo is the most logical cause (as RAM running at tight timings @ 195MHz ought to be able to make it to 200MHz @ loose timings) but as both the RAM and mobo are spec'd to run at 200/400MHz - and I've heard a few tales on nforcershq.com that say similar things - I'm hoping it's just the chip but - like you say going from 11 x 133 to 11 x 195 is still nice and not much different from running at 11 x 200Mhz.