AHowes

Good to hear.. Now did you feel the ATX connection to see if its hot at all?

Cold to the touch.  I also repeated the test just now, LinX and Multi-GPU FurMark configured as stated in my previous post and still cold to the touch.  See screen-shot below (re-sized from original 1920x1200)
 
Edit: Right-click the image and go View Image to see slightly larger version of the screen-shot.

donta1979

Nice should had been done in the first place tbh not by us but when it was made=/ I do go by looking at the voltages at this point and so far i think the silverstones done dip below the 3.3,  +5v 12v 3v and the other 3.3v that they should be holding up none stop the antec seems to drop some with mass loads being put on it...

I think the Antec would stabilize more as a result of this mod because of it's multi-rail design.  Both the AX1200 and the Silverstone top end parts are single-rail design.

donta1979

dejanh

donta1979

Nice should had been done in the first place tbh not by us but when it was made=/ I do go by looking at the voltages at this point and so far i think the silverstones done dip below the 3.3,  +5v 12v 3v and the other 3.3v that they should be holding up none stop the antec seems to drop some with mass loads being put on it...

I think the Antec would stabilize more as a result of this mod because of it's multi-rail design.  Both the AX1200 and the Silverstone top end parts are single-rail design.

yeah thing is i own both even with the mod those voltages are dropping on you, where the silverstone psu, puts out just enough voltage so you do not go below the set rated voltages the mobo should be getting. like the 12v did drop a good degree without the molex once I added it, it stayed at 12v+ under stress.

How are you stressing?  Also, what other stuff are you running?  I have the following all running off the same PSU for day to day...
 
i7 920 D0 at 4.21GHz, 3.4GHz Uncore
Mushkin Ascent 998692 at 6-7-6-18-72-1T, 1.72V
2x HD5850 overclocked to 1000/1250/1.2875V
8x Gentle Typhoon 1850RPM direct to PSU
3x Antec stock fans from the Antec 1200 case
2x DDC 3.2 pumps at 12V each direct to PSU
Killer Xeno Pro
Auzentech X-Fi Forte
2x WD Scorpio Black 2.5" drives in Raid 1
1x OCZ Vertex 2 Extended 120GB SSD
 
Can you post a screen-shot of the Silverstone running for approx. 15 minutes like I did showing the software read voltages when using both LinX with all DRAM and Multi-GPU FurMark?  Also, keep in mind that you have a different chip and there are some power-regulation differences between the E759 and C3.  A lot of caps have been changed and stuff, for instance.

donta1979

prime95, linx, vantage
Like before you start your voltages are higher but once you start stress testing say your 3.3v goes below to 3.1x-3.2x or your 12v reading 12.11 will drop down to 11.8x to 11.9x your 5v dropping below the 5v and so on. With the silverstone psu I can honestly say after using the two both antec and silverstone the silverstone keeps those voltages up to what they should be.  I guess I am just too anal about things like that =) Like one difference I know about evga and asus boards is your qpi evga boards run it .3 lower than it should be where the asus boards run it .5 higher than what it should be on what you have it set to. Just my own personal gripes a I guess=/

Mine is running QPI higher actually, not lower (this is what I was asking before...started happening with newer BIOS for E759...oh well). 
 
Also, the 1.91% drop on the +12V rail is not seen unless I run Multi-GPU Furmark.  There is no drop with LinX, Prime95, or LinX/Prime95 + Vantage combination (see first screen-shot above with LinX running and voltage staying steady at 12.11V on the 12V rail and 5.00V on the 5V rail).  I would say that for 24/7 use the Silverstone is probably a better no-fuss choice.  Also, you are comparing the regular TPQ-1200 to the Silverstone.  The TPQ-1200 OC is more up to par with the Silverstones and Corsair AX1200.  I would not pit the TPQ-1200 against AX1200 for instance.  That is why I picked up an AX1200 after the TPQ-1200 OC bit the dust.  I'm still waiting for the replacement TPQ-1200 OC to arrive but the Corsair AX1200 is more than sufficient to demonstrate the difference in voltage fluctuations before and after the mod   I still think the gain on the Antec will be more noticeable because of multi-rail design.

donta1979

Here you go during and after it finished its 50 runs before the 15min.

Good, good.  More confirmation the Molex mod is working as expected.  I would have liked to see All DRAM or minimum 25000 problem size (sorry I know I am sounding like I'm nagging hehe but it puts more stress on the system than the 10000 problem size).

Ok so i have been read this forum and i guess whats happening is the e759 can supply the GPU's with enoff power so the 24 pin melts and FIRE. GREAT i just order and E759 off b-stock **** **** **** great. WHAT DO I DO. I saw some pictures of someone taking a molex and soldering it to the underside of the 24 pin. OR I just send back the board now i NEED HELP.

 
*snap* Dejanh bet me to the reply (to paintballer1388) by a whisker.
 

Any more than a single HD5850 or HD5870 and I'd say you need some more juice.  I burned out with two HD5850s.

 crap! time to do that mod, my second 480 is coming soon. 

paintballer1388

WOW **** haha should i just send back the F**king board now because i am pissed off right NOW.

Well, that is up to you.  Honestly E759 is still probably the best board you can get out there.  Just a matter of what you want to do...mod or not.

paintballer1388

THe mod is no problem my father can solder anything. i mean the hole reason of buying this board was the extra nf200 chip and running 3 way sli. Should i keep it. i have the box sitting on my desk right now ups just dropped it off. Do i open it and make a youtube video or send it bad because i dont no as of right now

You say you can do the mod, then keep it.  There is no reason to get rid of it if you can do it.  Just make sure it is done right (rather wired right) otherwise you may smoke your new board.

HAHAHA i opened it. I am editing the video now make sure to check it out doesn't hurt lol.
 
http://www.youtube.com/user/computerkiller13888

from what i have read on this issue evga official response is this is a very rare event and only happins on rare configurations 2xgtx480s sli and a e760 ?come on

5thduke

from what i have read on this issue evga official response is this is a very rare event and only happins on rare configurations 2xgtx480s sli and a e760 ?come on

actually its the E759 and E760.... so yeah the response they gave is a kind of hold you over not really explaining anything nor how to prevent it.

HEy well the video is no on YOUTUBE chceck it out if you dont mind
 
http://www.youtube.com/user/computerkiller13888
http://www.youtube.com/user/computerkiller13888
http://www.youtube.com/user/computerkiller13888
http://www.youtube.com/user/computerkiller13888
 
thanks for everyones help on the evga forums