anybody tried F3 stepping??

Try to get windsor if can, brisbane really not good.

Let's do some calculation, we will view this from Pi efficiency

Take a look at the 1st pic, It's a Brisbane G1 3600+ at 3000 MHz, Pi result is 29.250s

Pi efficiency = Core speed x Pi result
= 3000 x 29.250
= 87750

While this is the 2nd pic, using a Windsor F3 5200+ at 3000MHz as well, Pi result is 27.500s

Pi efficiency = 3000 X 27.500
= 82500

*memory timings and sub-timings for both results are exactly the same.

For your information , the lower the value of Pi efficiency, the better performance u have. You can see how much better is windsor compare to brisbane.

The reason Brisbane is not performing well is because it has high L2 cache latency if compared to his brother windsor core.

And about the temperature, I can't really tell you the exact value for F3 windsor as im using watercooler, the temperature already being pressed to the minumum. But it is surely better than brisbane because if windsor F3 is disturbed by heat problem, there's no way we can OC it higher than brisbane rite?

This post has been edited by dblooi: Aug 22 2007, 01:32 PM

excellent explanation dblooi =)

ur ram are u using and what is its voltages for that speed ar?

that's why not everyone can do WC..
windsor should run faster.. that's right.. but how about voltage supplied?
and again normaly higher PR rating proc need lesser voltage to performe higher.. should compare with 3600+ with 3800+ windsor then... later heat issue/stability will arise..

yes,im talking about windsor..and thanx dblooi for the screenie.
does the 3800+ F3 can get 3ghz also.....hehehe

i read somewhere that a 3ghz Brisby equivalent to 2.7-2.8ghz Windsor..

last time i run windsor 3800+ on 2.7g.. yes can feel the different.. but after considering supllied the voltage around 1.55v.. with temp 70C.. that's pretty insane F2.. issit F3 runs cooler n less vCore?

well from the screenie by dblooi,
3hz is 1.425v......of coz shud be cooler thn 1.55v hehehhe

You got a nice Windsor 38, 8tvt. Last time my Windsor 38 only can reach 2.6GHz w Vcore 1.55v

-pWs-

This post has been edited by -pWs-: Aug 22 2007, 02:15 PM

F3 uses less voltages and the wall is higher too

I think better do not trust the CPU-z vcore reading.
CPU-z 1.40.9 vcore reading seems already being corrected.

-pWs-

This post has been edited by -pWs-: Aug 22 2007, 03:09 PM

if the reading is correct also.. that's becoz of 5200+ and bear in mind the L2 cache also 1mb.. not 512

ya i wonder if that windsor can achieve 3ghz.. if WC 1.7v is no sweat.. but that's history.. waiting for upcoming new amd cpu.. when should available...

I'm using Crucial PC2-6400 value ram, D9GKX ram chipset. I always supply max vdimm which is 2.44v to my ram as my mobo has serious vdroop problem, I lazy to test every single value 1 by 1.

I used CPU-Z 1.40.9 for that 5200+ screenshot
and yes the reading of the CPU-Z is correct
My 5200CZ not really a good stepping 1,
I've seen some insane CZs can do 3.2GHz at 1.250v
Of coz, they are rare and hard to find

This post has been edited by dblooi: Aug 22 2007, 06:22 PM

Hardcore overclocker detected
Any active cooling on your ram?

-pWs-

that's 1.25 could be of incorrect reading after certain fsb..

actually F3 default voltage is 1.25v or 1.35v?

1.20 - 1.25v for 65w wattage
All Windsor F3 processors are as below:-
F3 Processor Details

-pWs-



This post has been edited by -pWs-: Aug 23 2007, 08:58 AM

it's HTT, no such thing as fsb in AMD k8 platform
of course you don't have to believe me, but you can try to look around with google search, check whether i'm bluffing you or not.

just put 2 x 6cm fan there.

noob quest..i still dun understand.. let says i have the ddr2 667 pc5300 1 gb.. single channel.. what are the so speed is 333mhz.. why we need to use divider.. mean we have to maintain the memory below 333mhz or wut.. can help??

i'm referring fsb from mobo... no need to be specific..
after raise certain value.. some software report vCore incorrectly.. could be becoz of bios..
htt is no meaning for me...

if 1.25v for 6400+ should be.. coz by default it's already 3.2g
and who want to buy that overpriced windsor... OCers...

DDR = Double Data Rate.
Since you know you are using 667MHz ram, you have to divide by 2, so 333MHz is correct.
For the divider, sometime the overclock will be limited by ram. Normally, lower the ram speed will improve your overclock.

And, you can use 667MHz divider as well, just that you will need to add some Vdimm to it as you are overclock your ram as well. Get it?

-pWs-

sorry if i ask at the wrong section .... my bro wanna setup an AM2 rig ... just wanna ask about ram .. is it all brand of rams ok for this AM2 or only some brands will suit best for AM2 coz i think i have read somewhere about not all rams suitable for AMD ... hope can help .. tq ..