Newsgroup: it.comp.hardware.overclock
Titolo: Un pò OT: differenze tra BX6 e BH6

A parte la storia dei moltiplicatori che si sbloccano ci sono altre grandi
differenze tra le due MB?
Saluti

differenze tra le due MB?
direi di no.
la bh 6 ha il bus a 124, la bx6 ha il Pci bufferizzato...
la bx6 ha 4 pci e 3 isa, contro 5+2.
la bx6 ha 4 dimm, contro 3
la bx6 e insomma laversione di "lusso" costa infatti qualcosa di piu'.
io ho ordinato quella, anche perche' la bh6 non la trovavo :)

 la bx6 ha 4 dimm, contro 3
la bx6 non ha l'SB-Link (per mantenere la compatibilita' delle nuove sk 
audio su PCI, credo) che invece ha la bh6.
La bh6 e' perfettamente adatta alle dimensioni "atx", invece con la bx6 
si pena un po', ma il tutto e' ininfluente, soprattutto per i 
randellatori di questo NG, VERO???  :)))
Ho letto di fretta (
http://bxboards.pair.com/124mhz.htm
), ma pare proprio 
che a 133mhz il divisore applicato dalla bh6 sia 3 e non 4 come si 
pensava (percio' PCI a 44mhz).
Cmq, dalla considerazione finale di chi ha testato la bh6, risulta questo:
"From a personal perspective I am very impressed with this board. Its 
extra PCI slot, 124 Mhz bus speed and SB-Link shows that Abit looked at 
what was lacking on the BX6, fixed it and created a killer board!
Coupled with the fact this this board can be picked up &pound;15 or $25 
less than the BX6 this board really becomes irresistable!".
Personalmente mi delude un po' il fatto del divisore 3 invece di 4 a 
133mhz di bus: anche per la bx6 e' la stessa cosa?
Boh, non lo zo, non lo zo, non lo zo, che mal di testa.......... se 
vedemu.....
RobyZ
--
Posted from [195.223.230.181]
via Mailgate.ORG Server - 
http://www.mailgate.org

(percio' PCI a 44mhz).
"Ma pare proprio" un bel ciufolo  :)  scusatemi, rettifica, a 133mhz il 
divisore e' proprio 4 (ma solo per il PCI non per l'AGP):
"Abit didn't stop with simply unlocking the Intel CPU multipliers for the 
BH6, they decided to really unload on their competition with another 
Abit-unique feature. What we're referring to is the "124MHz" bus speed 
option that is now included with the BH6 in its Soft Menu II settings.
Savvy overclockers know that the gap between achieving a successful 
overclock from a 112MHz FSB to a 133MHz FSB is large. The PCI peripheral 
speed goes from a stock level of 33MHz at a 100MHz FSB speed, to an 
unholy 44MHz at the 133MHz FSB speed (133/3 = 44MHz). Even worse, the 
stock AGP port's speed of 66MHz at the 100MHz FSB speed goes all the way 
up to an Earth shattering 88MHz, where almost no AGP video card can 
perform properly, at least in it's 3D mode.
This is due to most 440BX mainboards shipping with a 1/3-clock divider 
for the PCI bus (100/3 = 33MHz) and a 2/3 clock divider for the AGP bus 
(100MHz FSB = 66MHz AGP). Luckily Abit decided to include a 1/4 PCI bus 
speed clock divider with the BH6 (only active when the 133MHz FSB speed 
is selected).
What this means is that even at the 133MHz FSB setting, the PCI 
peripherals still operate at a cozy 33MHz (133/4 = 33MHz). The bad news 
is that Abit did NOT modify the standard AGP 2/3 clock divider, so all 
AGP cards will be running at the "warp speed" of 88MHz when the FSB speed 
is set to 133MHz.
In our tests using a Matrox Millennium G200 16MB 2D/3D AGP card, we found 
that at the 133MHz bus speed (AGP = 88MHz) the 3D acceleration of all 
games wouldn't function period. This is an identical symptom that we've 
seen on other overclocked AGP systems using the 133MHz bus speed 
previously. Thanks to the 1/4 PCI bus speed clock divider of the BH6 
however, our PCI-based Adaptec 2940UW SCSI controller and peripherals 
functioned perfectly at the BH6's 133MHz bus speed, a feat that we've 
tried with three other boards and have never been able to duplicate due 
to those boards only supplying the regular 1/3 PCI bus speed clock 
divider". 
Ciao, Robyz
