Going to overclock the A1G3XE to 1Ghz!!!!!!!

[Helgis75]

Call me crazy, but i have decided to go overclocking my forthcoming A1G3XE from 800Mhz to 1Ghz, and hopefully the 60x bus of the 750FX G3 CPU could also be run at 200Mhz, as stated. But most important, overclocking the main CPU to 1Ghz!!!!

God, i must be crazy, but i really want to! I have ask for help without going by the mailing-list, as they don't really are so kind of breaking the CPU-warranty by overclocking it...I asked Ole-Egil personally :-D  ;-)  Let se how it will perfom:-)

[Elwood]

Personnaly, I am going to eat a hamburger for lunch !  :-P

[takemehomegrandma]

Helgis75 wrote:
Call me crazy, but i have decided to go overclocking my forthcoming A1G3XE from 800Mhz to 1Ghz

Cool!  :-)
Don't forget to tell us how it worked!
BTW, haven't you still got your A1?

hopefully the 60x bus of the 750FX G3 CPU could also be run at 200Mhz, as stated.

(That old Offspring hit popped up in my mind)

The Articia: "Give it to me baby"
Helgis75: "Aha, aha"

 :-D

[JurassicCamper]

Helgis75 wrote:
Call me crazy,

CRAZY


 :lol:

[mikeymike]

With that many exclamation marks in the subject line, I'm sure it's got to work!

[Sloxa]

jeehh!!!  you got propably 20-26% more speed
is it worth it???   what if you cpu explode!!??

you most be crazy!!!!!    :-D  

"but meaby i overclock my a1 too "
i have overclocked blizzard 210 to 266.. and little
unstable behavior noticed! 8-)

[Agafaster]

@Helgis75

dont forget - the IBM Part (750FX) is rated as having an external interface running at up to 200MHz (ie: extreme limit) but dont forget two other very important parts: the motherboard and the Articia-S.
I believe the Articia is only capable up to 133MHz (possibly 150 but that might be pushing it), so therefore the motherboard wont be going much faster than the chipset.
I feel the fastest FSB is therefore 150 if you are incredibly lucky, and you run it outside in winter with a fan the size of the Cornwall wind farm.
and given the trouble people have been having with Memory at 133 MHz, I'd say 150 might be a step too far.
so: 133 MHz FSB, set multiplier to 7.5 times, put an [color=0033FF]Enormous[/color][/b][/i] fan on the CPU. possibly one on the northbridge too !

other than that, good luck, hope you dont fry your long awaited A1. ;-)


apparently IBM had a bit of trouble getting FX's to run nicely at 1GHz - so they shrunk the die (and a few other tweaks) to get the GX (up to 1.4GHz ?). HyperionMP posted on another list somewhere... Ben - wanna confirm ?! :-) )

[amigamad]

Go for it im thinking of doing it when i get my board. :-)

[KennyR]

Yes, you are crazy. Overclocking is nuts. Why not just break your CPU now and save all those hours of work and uncertainty? :crazy:

[amigamad]

Yes, you are crazy. Overclocking is nuts. Why not just break your CPU now and save all those hours of work and uncertainty?

Ive had an athlon and a celeron overclocked for years with no harm only stupid people who dont know what they are doing burn cpu,s out. :-?

[KennyR]

Ive had an athlon and a celeron overclocked for years with no harm only stupid people who dont know what they are doing burn cpu,s out.

There must be a lot of stupid people around, then. ;-)

But seriously, why risk damaging the PPC, validate your warranty, and give yourself heat and stability problems for a very weak speed boost?

[redfox]

 :crazy:  ...  ;-)

Seriously, I hope it works out.

Questions for the tekkies out there ...

Wouldn't the rest of the board still be operating at it's normal slower speed?

Wouldn't this require "wait states" (or whatever the modern equivalent term is called) to be added to each access of system memory or AGP slots or PCI slots?

/* IMHO....

I can see overclocking the CPU if the cache memory is large enough to contain the entire program you are running, plus all the data it needs to do the job.  If the CPU has to continually access the normal system RAM or disks or PCI slots or AGP slot, then it will be restricted somewhat by the speed of those external interfaces.

(entering dinosaur mode) ....

In the old days we accounted for slower memory or I/O devices by adding "wait-states" to each access of those slower RAM chips or I/O devices.  This involved stretching clock pulses or using "wait" signals to tell the CPU to stretch out the access long enough for the slower device to respond.

...*/

---------------------
redfox

[Tomas]

nothing wrong with overclocking, but make sure you do it in small steps"a couple of mhz", then check for any signs of stability problems.. if its ok, up it some more and so on   :-)

[Tomas]

KennyR wrote:
Yes, you are crazy. Overclocking is nuts. Why not just break your CPU now and save all those hours of work and uncertainty? :crazy:

You dont break it if you do it with caution... Sure, if you up the fsb/multipelere all the way up at once, then yeah... you can hurt it really bad..

But when you do it in small steps, one mhz at a time...

Actually many processors is actually a higher model just downclocked... For example those AMD xp1700 throughbred cpus, they are actually XP2400+ or higher...

[mikeymike]

With that many exclamation marks though, you're bound to overflow the exclamation mark buffer in the G3, especially if it's overclocked.