Last Saturday 24 July 2004 15:12, Stefan Scheffler was
like:
hmm ... are you sure about the type of processor?
AFAIK only Celerons
+700 mhz support a 100mz fsb.
I'm just reading the motherboard manual.
Intel has a utility to check cpu information bus
speed and so on ..
sadly it's windows/dos only:
http://downloadfinder.intel.com/scripts-df/Product_Filter.asp?ProductID=441
Won't be much use to me then ;-)
Thanks for the other suggestions tho'
I think
it's probably more a question of me explaining badly. I think I've
just set it to the maximum I can get with this mobo & processor. The one
weirdness is that the processor is now being detected as 900MHz, which is
not true. Perhaps the 1800 bogomips reading is, I don't know.
now that is uh ... interesting ... so within two days you like almost
quadrupled your processor speed .. congratulations :D
Yeah, basically I suspect I've been driving with the handbrake on :-]
could you post the output of "cat
/proc/cpuinfo"? I'd love to see that. :)
sure:
~$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 8
model name : Celeron (Coppermine)
stepping : 6
cpu MHz : 896.977
cache size : 128 KB
fdiv_bug : no
hlt_bug : yes
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 mmx fxsr sse
bogomips : 1789.13
just FYI:
"model name :" should tell you the name and aometimes the design
speed of the cpu
"cpu MHz" the real current speed
"bogomips" issome weird timing value I have no idea what it means exactly
It's a semi-arbitrary benchmarking value, usually twice the processor speed.
AFAIU.
Last Saturday 24 July 2004 16:33, Matthew Barber was like:
Be careful doing something like that, especially
with old boards. I
think setting the fsb clock to "no man's land" will set the pci clock
(and AGP if you have AGP on your board) to something unusable, unless
BIOS locks the PCI/AGP clock to a certain range of values. PCI
generally wants to run at about 33Mhz (unless you have a very new board
with PCI-X or some such), and AGP at 66Mhz, and these values will
generally be a fraction of the fsb. So if your fsb is 66Mhz, PCI will
be 1/2FSB. If it's 100Mhz, PCI will be 1/3. Setting it to 75Mhz may
cause it to still be in the 66Mhz realm as far as the division is
concerned, and set PCI to around 38Mhz, which may cause a lot of
problems. I know some BIOS will take care of this by locking AGP and
PCI to a certain value, but I wouldn't count on it with an older
board/bios.
This is what I guessed, I'm using the values specified in the manual for a
Coppermine FC-PGA 600, so:
at 3x clock ratio I get:
CPU (I assume this is FSB) 100
PCI 33
AGP 66
The display cache runs at 100MHz too, a 1:1 ratio seems logical.
One of the reasons I only have 192MB of RAM is because I have already been
fussy enough only to use memory that is supposed to run at 100MHz too.
No-man's land FSBs are only relevant if overclocking, which is not the object
of the exercise for me. I'm trying to optimise.
I don't think I'm doing _too_ badly.
Last Saturday 24 July 2004 17:49, Ryan Underwood was like:
Where? Is there an online copy of this manual?
I found one here:
http://www.motherboards.org/mobot/manuals/All/0/50/
http://english.aopen.com.tw/products/mb/MX3WPro-V.htm
I think I might read it now. I'm a bit confused as to why my system thinks
it's running a 896MHz CPU, But so far there's no overt signs that it isn't
happy, so I'll prod it a bit and see ;-)
cheers
tim hall
Yeah that's close enough to 900mhz for me. Some cpu's are noted as being
good overclockers, but, hell, that's a free 50% overclock! The new sweet
spot for OCer's is the mobile athlon 2500/2600 (~$90US), out of the box
they are ~1800 to 1900mhz and are easily hitting 2500mhz on air cooling
with just a little extra voltage. The Pentium 2.4b's were easily hitting
3Ghz.
Rick B