2014/02/15 10:27:12
hallowen
Well, If it's not One Thing...It's Another,
 
First I Finally manage to Buy Four KPE's + Four EK WB's, and Now (Just to be on the Safe Side) I Need Four 1500W+ PSU's! 
 
BTW:
I've Been Surfing the Internet for Days and There are Absolutely NO 1500W - 1600W Single or Two Rail PSU's in Stock ANYWHERE!
2014/02/16 05:02:13
Q56_Monster
Just buy some old used ones hallow. A good single rail 1200 off Fleabay, the marketplace, or any of the forum buy/sell sections. String em together.
2014/02/16 07:06:18
hallowen
Q56_Monster
Just buy some old used ones hallow. A good single rail 1200 off Fleabay, the marketplace, or any of the forum buy/sell sections. String em together.



When I Connected My Thermaltake 1200W that had ALL of the three 6-pin and three 8-pin PCI-E available, But was already being used as the Main PSU for the MB and OC'd CPU on just One KPE, I had Artifacting like Crazy on Vantage at the same OC Settings as the other Three KPE's that were Already Underpowered with the Single 1600W on Them (as My Tests have Shown), So I Immediately Dumped That Idea Before Something Got Damaged!
 
I Don't Think buying another 1200W+ to try and run the other Two KPE's will be sufficient, Since I have already shown in testing that Two OC'd KPE's required at Least One 1600W with an available 110A Single Rail to Operate at the Levels I want.  
 
Yes, I agree with You...........I probably Could Jury rig some old PSU's to get the Wattage I need, But THEN I Take the chance of Screwing up Thousands of $$$$ in Hard-to-Get Graphics Cards.
 
Finally, Last Night after Hours of Internet Surfing (looking at my Laptop Screen until my eyes were blurry) I managed to Find another Rosewill Hercules 1600W that I bought IMMEDIATELY, the only problem being is I won't get it delivered to me for a week or so, But then at Least I will have the Exact Same Wattage and Amps Fed to All Four Cards!
 
If a Total of 3200W doesn't do the Trick of running Them on Just Water Cooling (Not Sub-Zero or LN2)................The Only Other Option that I can see is buying Two More 1600W PSU's on Top of the Two I will have.
 
Quad Graphics Cards.....................Quad Power Supplies...................and a 200 AMP Service Installation for My House!

 
 
 
2014/02/22 15:58:33
hallowen
After I FINALLY added a SECOND 1600W PSU which gives me 3200W JUST for the Four KPE Graphics Cards, I Thought That would Cure the 4-Way SLI Problems I was having, But Something is Still Not Right when running 4-Way SLI Benches in Vantage...........
 
I Just Don't Know What Else it could be..............Maybe it's the Vantage Software Itself?
 
Although I Have to say When Running Benches with 4-Way SLI in 3DMark Fire Strike, Everything Seems to be Working Pretty Good.
 
 

 
 

2014/02/22 16:15:45
Halo_003
Could just be scaling issues. What are you scores like compared to other 4 Way runs?
2014/02/22 16:58:57
hallowen
Like I have Shown Before, Anything more than 2-Way SLI results in a 3K - 5K Reduction in Vantage Scores along with what appears to Me as "Throttling" in 3-Way and 4-Way SLI because the FPS Just won't increase any Higher no Matter WHAT You set Precision X to.
 
In 4-Way SLI,  I can almost get the same scores WITHOUT OC'ing or using Presicion X as I Do with setting Precision X at +400 on GPU and Memory!
 
There Must be SOME Kind of Scaling/Throttling issues, But I have Not found out why as of Yet!
2014/02/22 19:25:39
johnksss
Can you dump the vbios so i can have a look at it? Thanks.
2014/02/22 20:28:17
hallowen
I am in the Process of re-loading windows 7 and I don't have access to it ATM.
 
I am using KPTI_SA-Classy-tool-1.5v.rom (Revision 4 02/05/2014 by skyn3t) from Overclock.net in the EVGA GTX 780 Ti Kingpin Owners Club Thread.
 
http://www.overclock.net/...ed-k-ngp-n-owners-club
2014/02/24 05:42:04
hallowen
I Have a Theory about My SLI Problems in 3DMark Vantage.......
 
I was Looking in Futuremark Hall of Fame in 3DMark Vantage (Performance Mode) and I Think that 3DMark Vantage (Performance Mode) is the Problem I am having in 4-Way SLI trying to use 4 Geforce Cards.
 
I noticed that ALL of the High Scores in Performance Mode, and Even Kingpin's #1 Score was done with only TWO Cards in 2-way SLI.
There was Only ONE 4-Way Score (#2 highest) that used 4 Radeon 7970's in 4-Way SLI (Don't Know WHY 4-Way Works for these Radeon Cards) after which everyone is back to using 2 Geforce Cards in 2-Way SLI, But NO 4-way GeForce Cards were used until position #31 (4 x GTX 580's)
 
By Contrast, In the 3DMark Vantage (Extreme Mode) I see that ALMOST everyone in the Top Scores are using 4 Cards in 4-Way SLI.
 
There HAS to be a Reason that Even KINGPIN Doesn't use 4 Geforce Cards in 4-Way SLI when Benching in 3DMark Vantage "PERFORMANCE" Mode, and You Might even Also Notice that I am in the #8 Position in the Hall of Fame 3DMark Vantage (Performance Mode) using Only 2 Geforce Cards in 2-Way SLI!
2014/02/24 06:57:29
hallowen
Well, It Seems that My Theory MAY have some Merit, Because Evidently when I run the KPE's in 4-Way SLI with 3DMark Vantage EXTRTEME MODE Enabled, In The Futuremark HALL OF FAME, I am #1 !
 
But even though I managed to Score this High, I STILL Think there is a Problem running 4-Way SLI that has Not Yet Shown Itself...............Hmmmmmmm. 
 
X67405
 

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