Official eVGA 780i Discussion/Review/Overclock/Guide Thread

The max with my E8400 is 450FSB with all settings to AUTO except CPU Voltage which is set to 1.35 in BIOS.

I am a firm believer in the waffer placement theory - somebody here made a post about it, and i used that theory to hand pick this CPU at Microcenter. It is supposed to go something like; the last two digits on the PCB relate to the CPU's core position on the wafer. The closer to 00 the closer to the center the cores come from. My CPU is a 05.
I gets to 4050Mhz with only 1.35 volts (VID: 1.1125v / Tj: 105) and on water the cores idle at 38 and on Prime they reach 54 holding Orthos.

Anyway, I have made a few attempts to go over 450, but haven't tried very hard. I'm more curious to see how this board does with a quad core.

525 x 8 with an e8400. vcore 1.45 in bios. spp = 1.5v, mcp = 1.55, fsb = 1.5v, ht = 1.4v. p04 bios, v64 sp1.

Does the EVGA 780i have the pins on the motherboard for doing a BIOS reset as well as the built in switch? The reason I am wondering is I am planning on making an external CMOS reset switch, but realized that the mobo may not have the pins required.

Test Vdroop Mod pencil.. =)

Below the data from before and after the Mod

No mod.
BIOS -----------> 1.368v
Windows ------> 1.312v
Full -------------> 1.288v

With Mod
BIOS -----------> 1.368v
Windows ------> 1.344v
Full ------------> 1.344v

Below some SS proving Vdroop after the annulment of the mod.

System in Full
http://img530.imageshack.us/img530/8...80ifullhu5.jpg

System in Idle
http://img236.imageshack.us/img236/9...80iidlesb8.jpg

Now that my system more stable



(Sorry for my bad English)

Guys i have read the post..
but it wasnt clear for me if it is worth buying this motherboard.....I broke down 3 asus mobos the last 2 moths..One p5w and two p5e....so i am in a dilemma of what to choose.....Asus p5e again (i dont want......) , e-vga 780i , or gigabyte x48 dq6....
I am bored of not having a pc for the last two months.....i just want something that works fine.....(and in a moth i will start o\cing again!!!!!)...

Quote:

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Originally Posted by ed_hunter

Guys i have read the post..
but it wasnt clear for me if it is worth buying this motherboard.....I broke down 3 asus mobos the last 2 moths..One p5w and two p5e....so i am in a dilemma of what to choose.....Asus p5e again (i dont want......) , e-vga 780i , or gigabyte x48 dq6....
I am bored of not having a pc for the last two months.....i just want something that works fine.....(and in a moth i will start o\cing again!!!!!)...

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If you want SLI this board is the way to go. If you dont care for SLI and have no plans for it the P35 or soon to be P45 will be a great choice. If you desire Crossfire the X48 or the 790FX are good choices also.

Ok.....
Soon i will buy one 8800gt...so i think that the evga will be a good choise..... hope it works...

finally did the vdroop mod...WOW!what a difference!
before droop mod(rig in sig).
bios-1.55v<---couldnt get 3.6 stable with anything less :/
idle-1.47-1.48
load-1.40-1.41
after
bios-1.40v
idle-1.40
load-1.41-1.40
priming at 3.6 for 2+hours.friggin awesome.
tested at 3.0 with 1.225v(VID)with the same results.hardly any droop at all :)
not to shabby,went from .15 droop to nada.if you havent done it...do it!

Are the eVGA 780i's supposed to allow you to go up to 1.5v FSB? Because mine doesnt even show 1.5v for FSB, its limited to 1.4v

Mine shows 1.4v with bios version P04.

Quote:

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Originally Posted by jas420221

Mine shows 1.4v with bios version P04.

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I also have Bios P04, How are some people getting the option for 1.45v FSB or 1.5v FSB? Is there a new Bios release?

Mine was 1.4v with the shipping bios. P04 is the newest one that I know of.

Where are you seeing people with 1.5v?

Most of you guys with 780i are using Wolfdales , is anyone with a Q6600 getting over 450mhz yet ? Can you guys get to 4Ghz with this mobo and cpu ?


:up:

I can hit 4Ghz with Q9450. Im constantly over 450Mhz FSB with a quad.

Quote:

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Originally Posted by jas420221

Mine was 1.4v with the shipping bios. P04 is the newest one that I know of.

Where are you seeing people with 1.5v?

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well, one guy on this page "politenessman" and also the very first post by GAR, says if your going over 450FSB 1.5v FSB would be recommended.

Theres also others throughout this thread

Hmm, I see the first post.

Interesting. I didnt need those settings at all for a stable 3.2Ghz (400FSB) or 3.6Ghz (450FSB).

EDIT: In fact, Im at 3.8Ghz now, and am only at 1.3v FSB. My GTLref is at 40mv, so maybe that helps as those 2 numbers are associated. (gtl ref voltage is 67% of fsb).

Quote:

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Originally Posted by aussie-revhead

Most of you guys with 780i are using Wolfdales , is anyone with a Q6600 getting over 450mhz yet ? Can you guys get to 4Ghz with this mobo and cpu ?


:up:

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ive hit a hardwall at 450 with mine.ive tested both a q6600 and q6700 on it and cant get past 450.it makes no sense.ive taken a couple of c2ds up to 535fsb 100% stable but quads are a whole different story.if i can crack this ill be sure to repost but im not getting my hopes up.

OK so 4050 is the max clock ceiling .

:up:

Quote:

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Originally Posted by Maxfly

ive hit a hardwall at 450 with mine.ive tested both a q6600 and q6700 on it and cant get past 450.it makes no sense.ive taken a couple of c2ds up to 535fsb 100% stable but quads are a whole different story.if i can crack this ill be sure to repost but im not getting my hopes up.

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LIke I said, I can EASILY get past that point... Its not the board...maybe the config? 4 slots of memory?

Quote:

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Originally Posted by jas420221

LIke I said, I can EASILY get past that point... Its not the board...maybe the config? 4 slots of memory?

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You would be one of a few then mate , it seems far more pople have this same limitation.

:shrug:

Quote:

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Originally Posted by aussie-revhead

You would be one of a few then mate , it seems far more pople have this same limitation.

:shrug:

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With all due respect, you should (re)read this thread then... I think you have it backwards. ;)

Here is another thead that shows similar results (that arent X38/48 anyway). http://www.xtremesystems.org/forums/...d.php?t=182602

Im not keen enough to re-read 800+ posts but I will try ....

:yepp:

I know dual's are VERY easily getting over 500FSB. Mine was at 4.5Ghz. I find it hard to believe that me, a c2quad overclocking n00b, can easily pull of 450FSB (Im 475 stable, 500 benchable easily).

Like I said, I think its the memory (4GB people) that is giving them fits at 450FSB+.

You got a good quad CPU then mate..cherish it,... currently working on an E8400 that I hope has got good potential...till now 3.6ghz at 1.08volts... on the good old Striker Extreme 680i...

You think it's 4gb in general or 4 dimms limiting the OC ? the 780i I tested a few months ago (with SLI) the guy wants to upgrade to 4gb, curently running 450FSB with his Q6600 (8x) he got 2 x1 gb dimms of Gskil PC6400HZ... and wants to add another two...

Thats the thing Leeg, the chip isnt cherry IMHO. 4Ghz comes at 1.4v with a lot of juice being pumped through this board (enough to make me not want to run it 24/7). I think yours is a little more cherry than mine @ 1.26v for 4Ghz!!!!