Newsgroup: it.comp.hardware.motherboard
Titolo: Consiglio aggiornamento Asus P2B-F

Ho la mb in oggetto con chipset 440 BX e slot 1, vorrei sostituire la cpu
(un mendoncino 400mz) con una più prestante.
Qual'è il PIII compatibile per bus e voltaggio più veloce che posso
installare a patto di trovarlo?
Grazie

Pentium 3 800 o celeron2 1100.
Ciao

 ha scritto nel messaggio
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Sulla mb in oggetto ho attualmente installato un PIII800EB (tramite
adattatore "slocket"), per funzionare a tale frequenza ho però dovuto
aumentare la frequenza del bus (FSB) fino a 133MHz, contro i 100MHz delle
specifiche di base, ma non ho nessun problema. (133MHz x 6)
In teoria potresti arrivare fino a al PIII1066 (133MHz x 8) a patto che
esista...
Penso sia + facile trovare un PIII1000 (133MHz x 7.5)
stef

 aumentare la frequenza del bus (FSB) fino a 133MHz, contro i 100MHz delle
Nulla da dire, solo che la freq. base del 440bx è 66mhz. Non fanno più i
chipset di una volta... da 66 a 133 è un incremento del 100%!!!!
^^DarIO^^

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Dipende cosa intendiamo per "frequenza base"...l'Intel 440BX è garantito
stabile da Intel per frequenze fino a 100MHz.
Riporto dal manuale della P2B-F:
"WARNING! Frequencies above 100MHz exceed the specifications for the onboard
Intel Chipset [appunto il 440BX] and are not guaranteed to be stable"
La mb in oggetto è teoricamente prevista per lavorare a 66 o 100MHz. Il
fatto che poi già sulla MB i jumper permettessero di arrivare facilmente a
133MHz la dice lunga...
stef


 Io ho una p3bf (moooolto simile alla tua), credevi che fosse garantita solo
fino a 66. Bè meglio ^_^. Cmq  ripeto, non le fanno più mobo così!


Ovviamente credevO.

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Se la tua P2B-F è una rev. 1.1 allora tramite un normalissimo
adattatore Slot-1/FcPga puoi metterci anche un PIII 1GHz/100Mhz.
Se invece la rev fosse inferiore allora devi utilizzare un ben più raro
adattatore con VRM onboard, il quale deve essere impostato a 1.8V.
Infine il Bios deve avere almeno la ver 1013A.
Ciao

 Ti segnalo questi siti (e quest'articolo:
http://www.anandtech.com/guides/faqs.html
)
In bocca al lupo.
Tom
The ASUS P2B family of motherboards, and other ASUS Slot 1 motherboards
remain one of the most popular and venerable motherboard lines, based on an
excellent reputation of stability and performance. It is only natural that
owners wish to get the most out of their board, especially in regards to
processor upgrades.
As long as you have the latest BIOS, you can upgrade most of these boards to
the fastest Coppermine processors: the Pentium III 1.1GHz and the Celeron
1.1GHz.
Please note that currently there is an issue with BIOS versions 1013 and
1014 for the entire P2B family that prevents 1.1GHz processors from working
correctly. Until ASUS provides a new BIOS update, you should go with the
1GHz processors. Other motherboards are not affected.
These boards will not support the Tualatin processors (1.2GHz and above).
Please see the article Are Tualatins compatible with my motherboard? for
more information.
Multiplier is NOT an issue with these boards, as Intel processors are clock
locked. The processors will ignore the motherboard settings and use their
own hardwired multiplier. You will not need to set the multiplier jumpers,
nor worry about very high multipliers not being supported.
With many of the ASUS Slot 1 boards, you can even use 133MHz FSB processors.
Be aware though, that the BX chipset does not officially support the 133MHz
FSB and is not guaranteed to operate at this frequency. In addition, the AGP
bus will be running out of spec at 89MHz as the BX chipset has no 1/2 AGP
multiplier. Most recent video cards, such as the nVidia GeForce family, are
able to handle these speeds without too much difficulty.
As long as you have the correct PCB version and the latest BIOS, you should
have no difficulty upgrading. The following table indicates which PCB
version is required to natively support Coppermine processors without any
additional work. You can find the PCB revision printed in small lettering
next to the motherboard model name on the motherboard itself (usually
between the PCI slots).
Model Minimum PCB revision Minimum BIOS version
P2B 1.12 1013 Beta 007
P2B-F 1.00. (See note below) 1013 Beta 007
P2B-B 1.02 1013 Beta 007
P2B-L / P2B-S / P2B-LS 1.04 1013
P2B-D / P2B-DS 1.06 1013
P2B-D2 1.02 1013 Beta 007
P2B-N 1.04 1013 Beta 007
P2B-VM 1.02
P2-99 1.12 1012
P2-99B 1.03
P2Z 1.12
P3W 1.03
P3B-F 1.03 1008 Beta 003
P3B-1394 2.00 2003
P3V133 1.12
P3V4X All 1006 Beta 003
P3W-E 1.03
ASUS does not support nor endorse any of the following information or the
configurations described.
If you have a board which has an older PCB revision, you can still upgrade
your processor. The problem with these older boards is a lack of voltage
support requested by Coppermine processors (VRM8.4). These boards physically
cannot send voltages lower than 1.80 volts (the lower limit of the old
Pentium II/Pentium III standard, VRM 8.3).
You can get around this problem by using an FC-PGA processor and a Slotket
with manual voltage adjustment. You must set the voltage on the slotket to
1.80 volts. This will over-ride the VRM 8.4 voltage request that the
motherboard does not understand, and allow the system to operate. Although
the voltage is not the same as the nominal default voltage for the processor
(1.65-1.75 volts), it is within Coppermine processor tolerances and does
help with overclocking, should you decide to do so. The system will not boot
if you do not set the voltage.
Additional notes:
All of the P2B family of boards have a 1/4 PCI divider setting, as indicated
by the presence of two 133MHz FSB jumper settings. Ensure that you select
the correct setting.
The P2B rev 1.10 has a VRM which seems to support voltages below 1.80 volts
in 0.10 increments, so a slotket may not be needed for processors which
default to 1.70 volts (cC0 stepping Coppermines).
There are two major revisions of the P2B-F: one is marked rev 1.00, the
other marked 1.00. (note the additional period on the end). The rev 1.00. is
the newer board which has native support for Coppermines. This board has
additional an additional FSB jumper (FS0 to FS3) while the older board has
only 3 jumpers (FS0 to FS2; FS3 is soldered down). Because of the
difficulties in telling the various revisions of the P2B-F apart, only the
following PCBA revs are guaranteed to work: A0A, A0B, A1A, A1B, A2A, A2B,
A33, A34, A43, A44, A53, A54.
The P2B-S and P2B-DS do not support the 133MHz FSB. The highest documented
FSB setting is 112MHz on these boards. Certain very late revisions may have
the 133MHz FSB setting.
The P2L97 series, P2V, P2E, P2B98-XV cannot be upgraded to Coppermine
processors with the workaround outlined above.
For more information, please see the following articles:
http://www.asus.com.tw/inside/Techref/Coppermine.htm
http://www.asus.com.tw/inside/TechnicalReference.htm
http://www.asuscom.de/de/support/techmain/FAQ/mobo_cpu/faq086_CPU_Upgrade_II
I.htm
http://www.asuscom.de/de/support/techmain/FAQ/mobo_cpu/faq077_Pentium_III_CU
.htm

 fino a 66. Bč meglio ^_^. Cmq  ripeto, non le fanno piů mobo cosě!
66 ?!?!?
La tua arriva stabile a 140 senza problemi, oltre devi fare attenzione ad
alcune cosette, ma andare ci va...     :o)
Avevo fino a quelche giorno fa' una Cubx, una delle ultime Asus con il BX,
era una P3BF con il socket 370 al posto dello Slot 1, ed aveva il controller
udma66 (o 100) integrato al posto di quello su PCI fornito con molte P3BF.
Ciao,
Zante