Athlon XP X2 5200+(AM2)Overclock?

musicman53 · 7 Jun 2007 at 09:51

Hi,
have tried my cpu at 220x12 and that bumped the ram speed up but did not notice any difference performance wise.
Had to set the ram from 4-4-4-12 to 5-5-5-18 because it would not boot.
Now I have reset the cpu to 205x13 and it shows as 2.67GHz with ram at 4-4-4-12.
It seems faster than when it was set to 220x12.
Any ideas/comments?
HTT Clock =205
HTT Speed=1025
CPU Clock shows as 2665 MHz
Is it better to do it the other way by dropping the multi to 12 and setting the cpu to 220?

MoodyB · 7 Jun 2007 at 10:29

For 220 fsb, did you try lowering the ram divider or increase the voltage a little ? Bit suprising it'll do 4-4-4-12, but fails at those speeds when only 15mhz higher. Make sure your command rate is set at 2T and not 1T.

What ram and motherboard are you using ?

musicman53 · 7 Jun 2007 at 12:59

MoodyB said:
For 220 fsb, did you try lowering the ram divider or increase the voltage a little ? Bit suprising it'll do 4-4-4-12, but fails at those speeds when only 15mhz higher. Make sure your command rate is set at 2T and not 1T.

What ram and motherboard are you using ?

Abit KN9 Ultra, latest bios and 2 Gig of Crucial Ballistix PC2-6400 CL4.
When I tried it at 220 x 12 the ram divider dropped from 7 to 6 anyway.
Ram was and is set to 2T.
No, kept the ram voltage at 2.2 as advised by Crucial.
:confused:

MoodyB · 8 Jun 2007 at 11:48

musicman53 said:
Any ideas/comments?
HTT Clock =205
HTT Speed=1025

This might be why it failed to boot at 220mhz, because if you didn't lower your HyperTransport multiplier, your HT frequency would have been 1100mhz ( HT multi is at 5x / 1000 by default ). Some AM2 boards will cope with a HT freq of 1100mhz, but others won't like going over 1000mhz at all.

So for a fsb of 220mhz, find your HT multiplier in the bios - some boards use 1/2/3/4/5, others use 200/400/600/800/1000 - and set it to 4x / 800.

musicman53 · 8 Jun 2007 at 18:01

MoodyB said:
This might be why it failed to boot at 220mhz, because if you didn't lower your HyperTransport multiplier, your HT frequency would have been 1100mhz ( HT multi is at 5x / 1000 by default ). Some AM2 boards will cope with a HT freq of 1100mhz, but others won't like going over 1000mhz at all.

So for a fsb of 220mhz, find your HT multiplier in the bios - some boards use 1/2/3/4/5, others use 200/400/600/800/1000 - and set it to 4x / 800.

It would run at 220x12 with HT Multi at 5 on 5-5-5-18
but ot at
4-4-4-12.
Think I tried dropping the HT multi to 4, still no luck

MoodyB · 8 Jun 2007 at 18:07

Did you try dropping your ram divider to 533 ( I'm assuming its at 667 just now ) ?

musicman53 · 8 Jun 2007 at 20:30

MoodyB said:
Did you try dropping your ram divider to 533 ( I'm assuming its at 667 just now ) ?

Have not done that as at present I am back at stock setting for this CPU.
200x13
divder shows as CPU/7.
If I don't drop the mlti to x12 and set cpu to 220 and just leave the multi at x13 and ram at 4-4-4-12 and change nothing else I can get 2.65Ghz without crashing or boot loops.
Will try for 2.7
Anyway, when I drop the multi to x12 and change the CPU to 220 instead of 200, the divider drops on it's own

MoodyB · 8 Jun 2007 at 21:37

Turn the divider to manual and set it at its lowest setting ( 400 or whatever the KN9 equvilant is ). That way we can exclude the ram from being the thing that's causing the overclock to fail.

Was your 5200+ a retail version ?

If it was, and the opn on the box was ' ADO5200CZBOX ', then it should be capable of at least 3ghz if not more.

If it was ADO5200CSBOX, then 2.8-2.9ghz might be the chip's limit.

musicman53 · 8 Jun 2007 at 21:56

MoodyB said:
Turn the divider to manual and set it at its lowest setting ( 400 or whatever the KN9 equvilant is ). That way we can exclude the ram from being the thing that's causing the overclock to fail.

Was your 5200+ a retail version ?

If it was, and the opn on the box was ' ADO5200CZBOX ', then it should be capable of at least 3ghz if not more.

If it was ADO5200CSBOX, then 2.8-2.9ghz might be the chip's limit.

Cpu is
ADO5200CSBOX.
Why should it be the ram doing it if it runs ok when 220x12, Divider =800 and ram at 5-5-5-18 ?
If I drop the multi from x13 to x12 then it auto sets to cpu/6 anyway when on a x13 mlti it auto sets to cpu/7.
I tried manually dropping from DDR800 to DDR667 and then to DDR533.
It booted on DDR667 and DDR533.
I will give up before long.
Should have gone for the 5600+(only £10 more)
Was not really interested in overclocking the CPU, more interested in trying to get the ram to run at 800(2x400) instead of the 742(2x371)it runs at because of the multi that the cpu uses( x13).