M3A79-T Seriuosly HIGH VOLTS,,not for the weak
:caution::toast2:Setting CPUvid // NBvid @ 1.55v :toast2::caution:
Well after 6hours of trying ACC and other settings i could not get the VID above 1.55v for the CPU..I was setting ACC which would lower the VID and set vcore higher...I also did not raise the Vcore above 1.587 while i was using ACC ,,It would always crash...
This only gave me 3.5ghz @1.60vcore Stock NB and 800mhz ram.
To no availe after numerouse reboots and that stup "CPU overvoltage crap at post "i decided to raise Both Vcores until they reached 1.55vid = 1.70v:D
This Mobo is great but ASUS Fubared the 302 and 401bios...I noticed that the CPU is exactly 10c HOTTER vs my TA770 @ the Same Volts and that the CPU vcore temp would read generally what my SB600Chip set temp did on the TA770.
After looking in BIOS and putting two and two together i noticed that the Bios reports 38c for my CPU but its actually 28c..This is ah messed up and 38c is what my Chip set is suppose to read.. So confusing ...So i Cranked up the Volts and @1.70vcore and added 600mhz to the NB and my temp only went up 2c.
So with that in mind i knew i wasnt over my temp limit to boot..When i had less vcore i could not run 2400nb..That was the first sign i knew something wasnt reporting correct either temps or volts..It was Both.
So to me this means The ASUS is way off temp wise. ALSO That ACC function i disabled it ,,pretty much useless with this Bios its so buggy. It was lowering the VID when i needed it higher for CPU and NB...and seems only -2 -4 and +2 +4 worked if anything...
They need to put a Hex in for CPUVID and NBVID along with the regular volt settings..To Reach all the Same speeds that i had with the TA770 i had to turn off ACC period.. It will work good for some and worse for others...All i know is that when i had ACC on i created more problems ,,Not booting after shutdown and some time locking up in windows. Once i turned it of No More Headache.
The Mobo is definatly fast and More Stable with the SB750 ,,but has Bios Issues..1066 was very buggy to boot and i had to use my patriot 800's before i could install the Dominators...
Besides that Everest and Supi looks good using just 1100mhz ram..This chip will boot windows @ 3.6 but is not stable yet..I need a better Bios ..This one lacks the Vids and memory optimizations ..
Im gonna tweak it more ,,but at end of week if 3.55 is all i can get i may exchange it for the 790FXB wich has the VID's in hexadecimal which id really like to use with ACC :D . The Mobo its self dosnt run hot at all...It seems to report everything higher than what it is..This 9950 is now 10c hotter in the 79-T even under load..
1.65vcore = 1.55vid this is for both CPU and NBvolts
Also see how the Bios Downclocked the Volts in the first screen ,,@ those volts my chip will only be 20c on the TA770..Tha twas the first thing that led me to cranking the volts,,
Hahaaa, I know im crazy ,only part time though.
http://i168.photobucket.com/albums/u...andpets011.jpg
http://i168.photobucket.com/albums/u...andpets012.jpg
Now look in CORTEMP see the VIDs
@3450mhz//2400+nb is with out ACC @1.55vid,,
@3502 and only 2000mhz nb with +2 and it lowered my VID alot ,,
Using ACC i could not keep the VID's high enuff to run More than 3.5/2000 with out ACC messing up. No matter wher i set Vcore values.
http://i168.photobucket.com/albums/u...ltageNOACC.jpg
http://i168.photobucket.com/albums/u...sus3511mhz.jpg
No ACC and my trick of 1.55vid
As you can see @3.5ghz/2600+nb my temps are 10c above what it should be..This same Overclock on my TA770 took 1.55vid and +.038v =1.61volts for both the CPU/NBvid's..
This 79-T is showing 1.7vcore @ 1.55vid's..If i lower the Vcore and or Vids i can NOT run this high..Also when i subtract 10c off my temp values its right in line with what the 9950 does on the TA770.
To top things off the 9950 and SB600 vs 9950 SB750
79-T SB750 9950@ 3.5ghz/2678nb
http://i168.photobucket.com/albums/u...tpi3502mhz.jpg
http://i168.photobucket.com/albums/u...suseverest.jpg
TA770 SB600 9950@ 3.5ghz/2678nb
http://i168.photobucket.com/albums/u...BSuperPi1M.jpg
http://i168.photobucket.com/albums/u...zNBeverest.jpg
The Asus 79-T is only a little faster,,
Insanly handles the Power I push and can add three cards down the road if needed..Did i say Looks better too and SB750 is more stable...Coming from the TA770 its a nice improvment even if i cant sqeeze more from this first revision 140watt 9950:up:
Thanks for reading,
gOtVoltage
P.S. All the same hardware/devices /cooling was used for both mobo's including the PSU and CASE and FANS,,Even Beer.