Having fun with Dothan, Socket478 and AGP card

[macci]

Thanks to the great CT-479 adapter the Great S478 i875/i865 boards are more than alive again! We have seen how those dominate SuperPi and PiFast but how about 3D?

Well, Here goes

main parts:

Intel Pentium M 730 1.6GHz 533FSB (~200€)
old, nearly dead ASUS P4C800 ('kyosen' Vdimm mod required to run stable) (~80€)
ATI X800XTPE ES (one of the first X800XTPE cards made)
good old BH5

The thing with these Dothan chips and ASUS s478 mobos is that the system needs to be booted up at 200FSB or higher. Otherwise the max FSB will be very low.
So lets start with everything at 'stock'.
Dothan at 2.4GHz (12x200, 1:1 TURBO), X800XTPE default clocks

3DMark2001SE => 32120

Pretty good as this matches a stock FX55 @2.6GHz with fully tweaked Win2000

Overclocking with aircooling:


Copper heatsink + CT-479 default fan on CPU and Alpha PAL8942+80mm fan on ATI GPU.
The 1.6GHz chip appers to be a pretty good overclocker and was able to reach over 2.8GHz aircooled for SuperPi 1M run - Vcore 1.55V. Higher Vcore is still to be tested (OVP kicks in at this point when VID is at default 1.308V). So it may hit higher too w/ air.

3DMark2001SE @ 2812MHz (233x12), ATI 660/660:
37757

That was ran just for fun, low 233FSB and poor car low, will do easily over 38k aircooled once really pushed

Next Step, good old Water+peltier cooling!




First run @ 2944MHz (245x12), 640/640, nature 650/660:

39045

Not bad for sub 3Ghz and aircooled video
No windows tweaking done for this run either. I'll need to test if 'ricky tweak' works w/ Dothan.
Still limited to 1.55V Vcore and it seems that this particular chip likes high voltage - so after VID mods even higher clocks should be available.
I'll try with icy water later this evening / tomorrow and see if she'll do 3GHz
I've had it thru SPi1M at 2970MHz so far.
40k might be just possible w/ aircooled card and water+pelt on CPU.

[S&M]

verrrrry niiiiice score you got there !
nice work macci and happy to see ya starting to hit the orb again ... !

[Holst]

Thats very impressive for such a cheap setup.

I didnt realise those CPU were quite good value.

Ive never even thought about going intel, but this looks very good.

[macci]

Not bad for sub 3Ghz and aircooled video

Well actually it appears to be the WR for Sub-3GHz setups
Just enough to beat my old record of 39004 w/ FX55 @2964 (269x11) and ATI @ 792/698..

[conrad.maranan]

Amazing work, macci. Do you think the Dothan has the potential to take down the top spot in 01?

[macci]

Well these are clearly faster than FX55 clock-to-clock..and we have seen these go as high as over 3.6GHz
Should be possible to take #1 in MArk03 single card too.

[Mathias-K]

Just when everybody was screaming "DFI! 939! UTT! Cascade!", Macci comes along with an olld 478 AGP rig, and a card up his sleeve

39k is AWESOME! I think the combination of a Pentium-M reaching Japanese clocks and a really good X800XT would devastate the ORB!

[charlie]

that's sooooo ironic, the old tech stuff squashing the ORB, lol...
It just goes to show that IF Intel wanted to make a great desktop combo, they COULD!! But they're tied down into the 915/925/955 P4 thing.

C

[S&M]

hey macci , btw - u could of pulled some points easily ...
use a 2X512mb sticks of VX ... they will do easily 245@2-2-2-5 , and 1gb scores more then 512mb at 01 ....

[macci]

I've tested with 2x512 and it seems to give excatly the same 3Dmark numbers as 2x256. If the mobo could handle 2x512 w/ max chipset settings (aka ASUS TURBO @200FSB) it would be a bit faster yes
2x512 seems to be a little bit faster for SuperPi thou. I have my good old KHX3000 2x512MB BH5 pair here that does 249 @3.28V Vdimm on this platform - also some new BH5 twinmos but its not quite as good.
w/ A64 2x512 would be clearly the better choice.

[Mathias-K]

hey macci , btw - u could of pulled some points easily ...
use a 2X512mb sticks of VX ... they will do easily 245@2-2-2-5 , and 1gb scores more then 512mb at 01 ....

I think that Macci's neither done benching nor unaware of that fact. After all, he IS the overclocking guru/legend guy

According to the first post i think it was to prove that all these xtreme 939 systems could be taken down easily AND inexpensively by a well tamed Dothan

[macci]

Quick Mark03 run I did this morning => 16177
all aircooled and only 2.7GHz / 630/630 clocks. The bench drive only had some old MArk03 version so no ORB link for that. Will try that again too soon w/ some higher clocks

[Pejsen]

Quick Mark03 run I did this morning => 16177
all aircooled and only 2.7GHz / 630/630 clocks. The bench drive only had some old MArk03 version so no ORB link for that. Will try that again too soon w/ some higher clocks

Oh my!

If i suddenly tear down my 6month old laptop bought with extra warranty just to rip out the 2Ghz dothan inside!

I know who to blame

[macci]

btw, I saw a peak FPS of 916FPS during that 39k run in Lobby Low
makes you wonder if the test will show higher than 999FPS - I guess that at 3.2G and high FSB we know the answer

[Malachia]

macci is this a FSB400 chip??? it is really going hight in FSB!!!

[S&M]

dothan is 533fsb ...

[macci]

macci is this a FSB400 chip??? it is really going hight in FSB!!!

The Mark03 screenshot w/ CPU-Z 1.27 incorrectly reports the CPU as 725/1.6GHz/400FSB. ITs really a 533FSB part 730 - like shown in this pic.

[Malachia]

The Mark03 screenshot w/ CPU-Z 1.27 incorrectly reports the CPU as 725/1.6GHz/400FSB. ITs really a 533FSB part 730 - like shown in this pic.

ahn ok, how much fsb i can expect from a 400FSB cpu???

[perry_78]

Well these are clearly faster than FX55 clock-to-clock..and we have seen these go as high as over 3.6GHz
Should be possible to take #1 in MArk03 single card too.

This would be hilarious

Go grab a x850xt pe AGP card off ebay if you want, millions of cards are there going for abour eur300

[gbglassen]

Impressive to say the least. Damn that thing is fast.

[Bennah]

Great work macci

This REALLY makes me wonder... do I go from A64 to Dothan power

This means I would have to sell 'new' tech (Venice, DFI SLI-DR & X850 XT PE) to buy 'old' tech (2.0GHz Dothan, P4C800-E & X800 XT PE)

Very intresting. For me to keep up with a Dothan @ 2800mhz means buying an FX55 which is way more in the way of £££.

*starts to think*

[bachus_anonym]

That is some serious power You just partially answered my "quiet question" if those Dothans are any good besides 1M runs.
Are you gonna try some DI on it anytime soon, macci? That should give at least Top5 score in 3DM01

With that 2.7GHz on air, your +16k in 3DM03 is very impressive That's whole 1k more than what my A64 90nm does @ 2.76GHz with similar vc clocks

Very nice to see you back in action

[Stuperman]

[AMDfanboymode]I'd say it's probably the extra mb of cache that does it[/AMDfanboymode] but still, that's an amazing chip. throw a few more clocks on that X800XTPE, and see what you can do. maybe take the 01 crown back form OPP and his SLI setup?

[DrJay]

Hmmmmm, seems to be very little price difference between 725 and 730 models.

[Kunaak]

btw, I saw a peak FPS of 916FPS during that 39k run in Lobby Low
makes you wonder if the test will show higher than 999FPS - I guess that at 3.2G and high FSB we know the answer

in my cheat testing, I have maxed out the FPS on 3dmark2001se many times.

it tops out at 999 no matter what.
eventually, you guys are gonna take this program to the point where you just physically cannot get a higher score, with 999 being the limit.

well... you'd have to max everything out at 999, so I am sure thats still gonna be a long ways away.

man, these dothans still just amaze me.
I miss the P4C800's...
still one of the best boards ever made.