PC reboots when FSB is increased !!!!

[David Maynard]

Here are the results of CPUz.

AMD Athlon XP

Code name: Thoroughbred
Socket A
Technology: 0.13u
Voltage: 1.632v
Family 6. Model 8. Stepping 1.
Ext family 7. Ext Model 8. Revision B0

Clocks

Core speed: 1662.8 MHz
Multiplier: x12.5
FSB: 133.0 MHz
Bus speed 266 MHz.

I'm not sure if this info pertains to the integrity of the CPU or is
merely a list of the BIOS settings..
Thanks for any help.

Well, 1662.8 Mhz isn't the 'more like 2' gig number you previously mentioned.

12.5 x 166.6 = 2083, the correct speed for a 2600+. That's a 333 FSB 2600+ XP.

 

[Dave C.]

Is that a problem? I read the subject, and was thinking . . . AND???

That is, what is the computer doing that you shouldn't EXPECT it to
o? -Dave

 

[Anthropy]

Is that a problem? I read the subject, and was thinking . . . AND???

That is, what is the computer doing that you shouldn't EXPECT it to
o? -Dave

Reboot whenever a demanding program is run.

 

[Dave C.]

Reboot whenever a demanding program is run.

While severely overclocked. Ummm, no . . . that is not a reasonable
expectation. Many systems running OK overclocked does not mean that any
particular system will be guaranteed to be stable if you force it to do
something it wasn't designed to do. If you push a system beyond it's limits
EXPECT instability. And be very relieved if you do NOT encounter it. But
don't post here complaining that your system is doing exactly what you
should expect it to do. -Dave

 

[Anthropy]

While severely overclocked. Ummm, no . . . that is not a reasonable
expectation. Many systems running OK overclocked does not mean that any
particular system will be guaranteed to be stable if you force it to do
something it wasn't designed to do. If you push a system beyond it's limits
EXPECT instability. And be very relieved if you do NOT encounter it. But
don't post here complaining that your system is doing exactly what you
should expect it to do. -Dave

Dave, thanks for your help but if you read the thread who will see
that the PC is not overclocked nor is it doing anything it wasn't
designed to do.

 

[Dave C.]

Dave, thanks for your help but if you read the thread who will see
that the PC is not overclocked nor is it doing anything it wasn't
designed to do.

Actually, after reviewing the entire thread, I'm pretty sure that your CPU
is overclocked at 166. First, it is ACTING like it is overclocked at 166.
Second, if your vendor didn't specify which version of chip you were sold,
it's practically guaranteed that you got the 133 version.

I stand by my original assertion. If you have a system set properly at 133,
it's fine. If you overclock it by raising the FSB to 166, it becomes
unstable. This is not a problem, but rather an expected result. -Dave

 

[Anthropy]

Actually, after reviewing the entire thread, I'm pretty sure that your CPU
is overclocked at 166. First, it is ACTING like it is overclocked at 166.
Second, if your vendor didn't specify which version of chip you were sold,
it's practically guaranteed that you got the 133 version.

I stand by my original assertion. If you have a system set properly at 133,
it's fine. If you overclock it by raising the FSB to 166, it becomes
unstable. This is not a problem, but rather an expected result. -Dave

Yes , that could be the reason but as a previous poster suggested the
temperature reading of the overclocked CPU would be reading a lot
higher than it is, i.e CPU 45c, Mobo 40c. Hot but not hot enough to
cause instant rebooting. Also another poster, using the info supplied
by CPUz (CPU diagnostic prog) worked out that the CPU is a 333,

12.5 x 166.6 = 2083, the correct speed for a 2600+. That's a 333 FSB 2600+ XP.

Of course I'm quite new to all this so if you have any other ideas,
feel free to mention.
Thanks