Playing with Foxconn A79-S, Phenom 9950 and CrossFireX for G|C

Hi there,

I did not overclock AMD for a long time but preparations for Games Convention in Leipzig/Germany making me testing Phenom this week-end with CrossFireX ;)

Board is Foxconn A79-S wit 790FX chipset & SB750 Southbridge.

http://www.foxconnchannel.com/Produc...es/feature.gif

Bios has some room for improvements but all in all it is not that hard to overclock it so far. Maybe I will try a little cold on it to see where coldbug is.

All the pots, cards and CPUs from me for G|C - giorgio will bring at least the same amount of things and we will have a great time for sure from 21.08.-24.08. in Leipzig :toast:
http://s1.directupload.net/images/08...p/b5iro6xa.jpg http://s6.directupload.net/images/08...p/ie3ek33z.jpg http://s2.directupload.net/images/08...p/e37akqvm.jpg

All in all I have 4x HD4850 to test but no Vista yet :p:

http://s8.directupload.net/images/08...p/72szasum.jpg http://s2.directupload.net/images/08...p/y6vc5gm5.jpg

First benches on air 3260 MHZ CPU, some issues when clocking the cards just 5 MHZ higher - I am still trying to figure out how to solve that. Core 1 & 4 are good, 2 & 3 won't pass 32m with this setting. The board allows to clock the cores separately what I am going to try right now.

http://s6.directupload.net/images/08...p/9ravetlv.jpg http://s5.directupload.net/images/08...p/af3rqmhl.jpg

regards
SoF

3495 MHZ 3xHD 4850 Vista SP1 81k 3D Mark03
http://s1.directupload.net/images/08...p/xdb3x867.jpg

This is going to be insteresting :P

I do not fully understand ACC option yet, set on auto I could pass some 3.300 MHZ benches:

http://s7.directupload.net/images/08...p/lmty7hg2.jpg http://s1.directupload.net/images/08...p/i43iddjb.jpg http://s3.directupload.net/images/08...p/wieytdxs.jpg

Hi
I'am using the new foxconn a79a-s mother board also .I got my rig up and running a couple days ago for right now using 3.0 ghz at stock v (1.32v) for my 24/7 clock.
I bump it up to 3.2 ghz last night and did a 3dmark-06 run . On my old mother i was never able to run over 2.9 ghz and and when it booted at 2.9 it would run long enought to get a 3dmark-06 run in and that was it . The new SB750 chip and ACC are just what the phenom cpu needed.

SoF, have you got destroyer ?

I saw there one ;)

can you test him with 9950 :D ?

hmm, if you have got those all hardware you can make the the best scores in 3d on amd :D:D

I think I will go for some good AMD results :) Destroyer is going to be tested later but it does not have ACC which seems to help with OC.

3375 MHZ 1m 23.203s 1.39Vcore
http://s2.directupload.net/images/08...p/4c63pqg4.jpg

compared to current hwbot results I am not doing too bad with the 9950 until now ;)
http://s8.directupload.net/images/080816/6nhfu5e2.png

Glad to see more results from these chipsets.. ;) Does that run stable at 3.3 with 1.36v?

So are you saying I need to get another 4850 now...:p:

3.3 seems to be quite ok stability wise. 3375 I can bench 03 on core 1&4 now but still can't go over 675 GPU clock :( :
http://s8.directupload.net/images/08...p/i89p76lx.jpg

i'd say the cards become too hot with that stock cooler.. unfortunately..

Quote:

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Originally Posted by SoF

I think I will go for some good AMD results :) Destroyer is going to be tested later but it does not have ACC which seems to help with OC.

3375 MHZ 1m 23.203s 1.39Vcore
http://s2.directupload.net/images/08...p/4c63pqg4.jpg

compared to current hwbot results I am not doing too bad with the 9950 until now ;)
http://s8.directupload.net/images/080816/6nhfu5e2.png

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Hah! Thats me at the bottom.:D

I snuck in quick and was no.1 for a few days.:p:


Anywho, that board (the first SB750 i've seen over here) is nearly £200, which i'm absolutely not willing to pay for a mid range piece of hardware.:mad:

yeah its worth that for some c|q show-off but everyone else is just better off waiting or buying that cheap ASUS 780G board.. only half the cost..

Quote:

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Originally Posted by D-Cyph3r

Hah! Thats me at the bottom.:D

I snuck in quick and was no.1 for a few days.:p:


Anywho, that board (the first SB750 i've seen over here) is nearly £200, which i'm absolutely not willing to pay for a mid range piece of hardware.:mad:

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I did a 24 sec run...;)
http://3800z24.info/Phenom/3.1htt/rar_Pi_1m.JPG

I am finally over 3.4 gig and sub 23s 1m :) Currently I try to pass 32m with it :up:
http://s8.directupload.net/images/080816/8q4bukds.jpg

€dit and 32m!
http://s7.directupload.net/images/080816/5kkkw78i.jpg

That's it time for a 9950 BE LOL.... I should have waited on my 9850, buying the first one on NewEgg gave me a less chance of seeing good OC., Although this SB750 board helped a lot. anyone want to buy a 9850BE???:D

nice, try now on 3400MHz cinebench and wprime please...

Dr Cypher I totally agree with you on the pricing.

The GX from Foxconn is almost £100 cheaper!

SoF, for destroyer is Aegis panel ;)

hmm, what about bigger mhzs?

try to do 3500 and pi on this :D

finaly cl4 tests again :p:
how much voltage do you need on ram for that?
lower as expected then on k8?

It is my new Mushkin 8500er Kit which I didn't tested a lot so far. 2.3V to be save but I think it could do with a bit lower volts.
I am currently preparing HDD for Vista to make use of all 3 cards and run some 03 again.

SoF, make the best 3d on amd please :D

Now benching ~3.5gig with 3 cards under vista ^^ took me hours to mess around with hdd cleaning, partitioning, installing, driver issues etc...but finally it works quite OK :up:

http://s1.directupload.net/images/08...p/xdb3x867.jpg

too bad I can't use the 4th card yet - I am missing another 6Pin power cable ^^

Very good OC SoF! Congratz!!
Phenom at those frequencies will like some water or even cooler things :p:.
Also you can try to use AOD and push CPU VDDC a bit higher to help stabilize at higher frequencies. Good luck! :up:

BTW I'm interested in this board, what is your verdict from OC perspective?

man, try Cinebench and wprime, its better than superpi :).

wprime under vista it does 11.2s @3375MHZ (just gave it a quick try no pic yet) but a longer run isn't possible with current air cooling. I need another 6Pin urgently ^^

Quote:

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Originally Posted by SoF

I am finally over 3.4 gig and sub 23s 1m :) Currently I try to pass 32m with it :up:
http://s8.directupload.net/images/080816/8q4bukds.jpg

€dit and 32m!
http://s7.directupload.net/images/080816/5kkkw78i.jpg

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heres mine on air

http://img.techpowerup.org/080712/3.48ghz.jpg