A7V8X-X FSB setting?

  • Thread starter Thread starter Al Miller
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Al Miller

Just bought the A7aV8X-X and AMD 2200+ Athlon XP, Bios Rev. 1007, 11/13/03.
The AMD is only running at 1350 Mhz and Bus Clock at 100 Mhz. AMD site
tells me that the FSB needs to be 166 Mhz but I can't find any jumpers to
change on MB and nothing in the Bios. Memory is PC2700, 333Mhz, 512 Mb.

Found no help on Asus web site and don't like waiting on phone for tech
support. So guys, anyone have an idea? Appreciate any help you can give.

Thanks,
Al
 
Just bought the A7aV8X-X and AMD 2200+ Athlon XP, Bios Rev. 1007, 11/13/03.
The AMD is only running at 1350 Mhz and Bus Clock at 100 Mhz. AMD site
tells me that the FSB needs to be 166 Mhz but I can't find any jumpers to
change on MB and nothing in the Bios. Memory is PC2700, 333Mhz, 512 Mb.

Found no help on Asus web site and don't like waiting on phone for tech
support. So guys, anyone have an idea? Appreciate any help you can give.

Thanks,
Al
Click to expand...
In the BIOS, go to the Advanced section, to set FSB adjust the CPU
External Freq. MHz setting.

Ed
 
CPU Ext. Freq. has only 2 settings: 100/33 and 227/45. When I change to
the later it locks up.
Present settings: CPU Speed = Manuel
CPU Frequency Multiple = 13.5
CPU Ext. Freq. = Auto
Memory Freq. = Was Auto and I changes to 333.
Al
 
O-K, changed CPU Ext. Freq. to 166.33 but system locked so changed to 133/33
which works but Processor speed is still low at 1833Mhz. All other settings
are set Auto.
Al
 
Al said:
O-K, changed CPU Ext. Freq. to 166.33 but system locked so changed to 133/33
which works but Processor speed is still low at 1833Mhz. All other settings
are set Auto.
Al
Click to expand...

Your processor speed sounds about right to me, the
2200+ Athlon XP is a 1.8Ghz (166fsb i think),

try doing this:

CPU Speed = (AUTO)
CPU Frequency Multiple = (auto)
CPU Ext. Freq. = Auto
Memory Freq. = Auto

It should boot fine, your cpu is meant to be running around 1800mhz
Your should not be adjusting any of these settings unless you are 1)
Intending to over/underclock your system and 2) willing to read the manual.
 
Philip said:
Your processor speed sounds about right to me, the
2200+ Athlon XP is a 1.8Ghz (166fsb i think),
Click to expand...

sorry, that cpu is 266fsb, not 166 like above, but the solution below
should still work, AMD tested your board w/BIOS: Award 1005 04/17/2003
revision, so yours should detect it fine, you stated in your OP that you
had Rev. 1007, 11/13/03.
 
Yep that's exactly right, an AMD AthlonXP 2200 has a clocl speed of
1.83GHz


Model: AMD Athlon XP 2200+
Core: Thoroughbred
Operating Frequency: 1.8GHz
FSB: 266MHz
Cache: L1/64K+64K; L2/256K
Voltage: 1.65V
Process: 0.13Micron
Socket: Socket A
 
=|[ Al Miller's ]|= said:
Just bought the A7aV8X-X and AMD 2200+ Athlon XP, Bios Rev. 1007, 11/13/03.
The AMD is only running at 1350 Mhz and Bus Clock at 100 Mhz. AMD site
tells me that the FSB needs to be 166 Mhz but I can't find any jumpers to
change on MB and nothing in the Bios. Memory is PC2700, 333Mhz, 512 Mb.

Found no help on Asus web site and don't like waiting on phone for tech
support. So guys, anyone have an idea? Appreciate any help you can give.

Thanks,
Al
Click to expand...

I got this board beeping at me still, but i rekon its not my fsb strategy
:D so...

Id recommend you run 333fsb with the 2200+ AthlonXP, even though 266 is
hailed as the default, when I got xp2000 last summer running with 333 fsb
wasnt considered overclocking -that was saved for 400 or greater.
Now my XP2000 is a T-bred core without multiplier lock, so if left to
default the bios runs the fsb at the memory speed and sets the cpu
multiplier to achieve the cpus default speed -1800~odd for your 2200.

I just mean you might test running on 333 fsb, and see if you have control
over the multiplier or if it automaticaly reduces so as not to try and run
cpu at 2.3 GHz which would certainly be pushing things.
But it seems that 333fsb is certainly supported by a7v8x-x and not really a
problem for my old T-bred, at least.

(i now think my beeping problem may be related to a much abused cheapo 350w
generic psu ;)
 
=|[ Al Miller's ]|= said:
Just bought the A7aV8X-X and AMD 2200+ Athlon XP, Bios Rev. 1007, 11/13/03.
The AMD is only running at 1350 Mhz and Bus Clock at 100 Mhz. AMD site
tells me that the FSB needs to be 166 Mhz but I can't find any jumpers to
change on MB and nothing in the Bios. Memory is PC2700, 333Mhz, 512 Mb.

Found no help on Asus web site and don't like waiting on phone for tech
support. So guys, anyone have an idea? Appreciate any help you can give.

Thanks,
Al
Click to expand...

I got this board beeping at me still, but i rekon its not my fsb strategy
:D so...

Id recommend you run 333fsb with the 2200+ AthlonXP, even though 266 is
hailed as the default, when I got xp2000 last summer running with 333 fsb
wasnt considered overclocking -that was saved for 400 or greater.
Now my XP2000 is a T-bred core without multiplier lock, so if left to
default the bios runs the fsb at the memory speed and sets the cpu
multiplier to achieve the cpus default speed -1800~odd for your 2200.

I just mean you might test running on 333 fsb, and see if you have control
over the multiplier or if it automaticaly reduces so as not to try and run
cpu at 2.3 GHz which would certainly be pushing things.
But it seems that 333fsb is certainly supported by a7v8x-x and not really a
problem for my old T-bred, at least.

(i now think my beeping problem may be related to a much abused cheapo 350w
generic psu ;)
Click to expand...


Athlon and Pentium 4 CPUs run entirely on the +12V rail and you can
determine their power consumption using the following formula that
takes into account voltage regular inefficiencies.

1.25/12 x cpu core voltage x cpu current

Builders Guide for Desktop/Tower Systems
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/26003.pdf

Ed
 
=|[ Ed's ]|= said:
=|[ Al Miller's ]|= said:
Just bought the A7aV8X-X and AMD 2200+ Athlon XP, Bios Rev. 1007, 11/13/03.
The AMD is only running at 1350 Mhz and Bus Clock at 100 Mhz. AMD site
tells me that the FSB needs to be 166 Mhz but I can't find any jumpers to
change on MB and nothing in the Bios. Memory is PC2700, 333Mhz, 512 Mb.

Found no help on Asus web site and don't like waiting on phone for tech
support. So guys, anyone have an idea? Appreciate any help you can give.

Thanks,
Al
Click to expand...

I got this board beeping at me still, but i rekon its not my fsb strategy
:D so...

Id recommend you run 333fsb with the 2200+ AthlonXP, even though 266 is
hailed as the default, when I got xp2000 last summer running with 333 fsb
wasnt considered overclocking -that was saved for 400 or greater.
Now my XP2000 is a T-bred core without multiplier lock, so if left to
default the bios runs the fsb at the memory speed and sets the cpu
multiplier to achieve the cpus default speed -1800~odd for your 2200.

I just mean you might test running on 333 fsb, and see if you have control
over the multiplier or if it automaticaly reduces so as not to try and run
cpu at 2.3 GHz which would certainly be pushing things.
But it seems that 333fsb is certainly supported by a7v8x-x and not really a
problem for my old T-bred, at least.

(i now think my beeping problem may be related to a much abused cheapo 350w
generic psu ;)
Click to expand...

Athlon and Pentium 4 CPUs run entirely on the +12V rail and you can
determine their power consumption using the following formula that
takes into account voltage regular inefficiencies.

1.25/12 x cpu core voltage x cpu current

Builders Guide for Desktop/Tower Systems
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/26003.pdf

Ed
Click to expand...

Thanks Ed, I just noticed when I run prime95 on aggressive memory test,
that 3.3v was wiggling lots (still within 5%) and the last time it beeped,
it coincided with a momentary dip in 3.3v (still not outside of 5% though)
Probes' graph let me spot that, so I took this as my latest hunch.

-thinking now, maybe it is a problem with too high fsb for the xp2000,
thats not how it seemed for the first 5 months running though :/

nothing catastrophic, I will tweak and test on :)
 
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