Dealing with A7V133...

[Marek Tomczyk]

Hello, this problem is old as a world, but I didn`t find any solution
for it.

A7V133 with T-Bred 1700+ CPU (Hard-modded to 2100+ (cut L5 bridges))I`m
using the newest 1010b beta BIOS. I know, that T-Bred is not officialy
supported by A7V133, but if it runs without any problems on its defaults
(133x11) so maybe new BIOS may help setting proper multips. After
modding CPU to 2100+, with 133FSB I can only set 9x, which gives me 16x
multiplier. Other multips with 133 FSB causes not booting to BIOS. But
setting 9x with 100mhz FSB gives me 17x multiplier, also I can set any
multiplier whet set to 100mhz FSB. Setting 133x16 makes my system
unstable, and even raising VCore to 1,85V won`t help.

Do anybody knows if a new BIOS is planned? or did asus stop supporting
this mobo at all?

Oh, and sorry for my poor english

 

[Ed]

Hello, this problem is old as a world, but I didn`t find any solution
for it.

A7V133 with T-Bred 1700+ CPU (Hard-modded to 2100+ (cut L5 bridges))I`m
using the newest 1010b beta BIOS. I know, that T-Bred is not officialy
supported by A7V133, but if it runs without any problems on its defaults
(133x11) so maybe new BIOS may help setting proper multips. After
modding CPU to 2100+, with 133FSB I can only set 9x, which gives me 16x
multiplier. Other multips with 133 FSB causes not booting to BIOS. But
setting 9x with 100mhz FSB gives me 17x multiplier, also I can set any
multiplier whet set to 100mhz FSB. Setting 133x16 makes my system
unstable, and even raising VCore to 1,85V won`t help.

Do anybody knows if a new BIOS is planned? or did asus stop supporting
this mobo at all?

Oh, and sorry for my poor english

What about dropping in some wire in the socket to set the multiplier you
want? IIR, just set BIOS to auto detect the multiplier and use the wire
to set what you want. ;p

Change to Socket view after page loads, it'll show where to put the
wires.
http://www.ocinside.de/go_e.html?/html/workshop/pinmod/amd_pinmod.html

http://www.ocinside.de/go_e.html?/html/workshop/pinmod/amd_pinmod_howto.html

Ed

 

[Marek Tomczyk]

U¿ytkownik Ed napisa³:

What about dropping in some wire in the socket to set the multiplier you
want? IIR, just set BIOS to auto detect the multiplier and use the wire
to set what you want. ;p

I think, that the result will be the same as in bridge-cutting mod, but
I`m not sure, maybie someone can confirm Ed`s theory? And BTW: I prefer
jumper mode than jumperless. It`s more reliable...

 

[Tom Joyce]

A7V133 with T-Bred 1700+ CPU (Hard-modded to 2100+ (cut L5 bridges))I`m
using the newest 1010b beta BIOS. I know, that T-Bred is not officialy
supported by A7V133, but if it runs without any problems on its defaults
(133x11) so maybe new BIOS may help setting proper multips. After
modding CPU to 2100+, with 133FSB I can only set 9x, which gives me 16x
multiplier. Other multips with 133 FSB causes not booting to BIOS. But
setting 9x with 100mhz FSB gives me 17x multiplier, also I can set any
multiplier whet set to 100mhz FSB. Setting 133x16 makes my system
unstable, and even raising VCore to 1,85V won`t help.

You have more chance of succeeding with this if your board revision is
1.04. or later. I was able to run a 2100+ Tbred B on my 1.05 with 1010b,
Crucial CL2 PC133, 1.8vcore and 17*133.3 (2266MHz, set jumper to 9*) but
it's a matter of luck. In jumper free mode it ran at 20*100.

Regards,
Tom

 

[Marek Tomczyk]

U¿ytkownik Tom Joyce napisa³:

You have more chance of succeeding with this if your board revision is
1.04. or later. I was able to run a 2100+ Tbred B on my 1.05 with 1010b,
Crucial CL2 PC133, 1.8vcore and 17*133.3 (2266MHz, set jumper to 9*) but
it's a matter of luck. In jumper free mode it ran at 20*100.

My board is rev 1.05 (without trailing dot). I was able to reach 2124mhz
(118*18) with 1.85V (RAM at 151mhz). My 1700+ CPU can`t run faster. But
it`s weird, that with 100mhz fsb setting 9x multi gives me 17x, and when
133mhz is selected, it gives me 16x multiplier. I`d like to have 133*15,
or even 133*15,5, but it`s a no-go when I set 133*7 or 133*7,5. Did
anybody forced this mobo to work with 133FSB and multiplie other than 16/17?

And one more thing. When I set 133*16 (2128mhz) it fails even to boot to
OS, sometimes hangs in BIOS, but 118*18 (2124mhz) it is rock-stable,
passes 8-hour prime95 torture test. Is 133 fsb a so big challenge for
mobo/cpu that it can`t run as fast? My 1700+ (when it was a 1700+, not
2100+ ) run without any problems at 150*12,5.

 

[Tom Joyce]

My board is rev 1.05 (without trailing dot). I was able to reach 2124mhz
(118*18) with 1.85V (RAM at 151mhz). My 1700+ CPU can`t run faster. But
it`s weird, that with 100mhz fsb setting 9x multi gives me 17x, and when
133mhz is selected, it gives me 16x multiplier. I`d like to have 133*15,
or even 133*15,5, but it`s a no-go when I set 133*7 or 133*7,5. Did
anybody forced this mobo to work with 133FSB and multiplie other than 16/17?

The problem is that the KT133A chipset supports only a limited range of
valid multiplier/cpu combinations. I have three useful archived web pages
(mostly relevant to CPUs with native multiplier of 13* or higher) I could
email you, or have a look on

http://www.a7vtroubleshooting.com/forum/cgi-bin/yabb/YaBB.pl

My 2100+ was completely stable at 17*133/1.8v but would not go any higher.
The performance difference between 17*133 and 20*100 was measurable but
hardly noticeable. Your 2124MHz is not bad for a 1700+.

Regards,
Tom