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

[Dyselinck]

I havent seen anyone posts with high FSB at all anywhere with the 780i.
I have 2 an both go that high with the E8400. My only beef is Vcore stops at 1.8v. 1.78 after vdrop
An thats what I had for them scores. It booted 5.0ghz but no windows action
I wanted to go higher but was out of vcore. I feel if ya want to Bar-B-Q a chip i should be able too. I doubt evga will release a bios with any higher vcore.

I still run the chip at 4050 for 24/7 with the same vcore I had before them overkill voltage runs. maybe once i get my chiller up an running the results will be differant. 780i FTW

Also got a E8400, cuold you post your bios settings?
I would like to have it 4.0 Stable? Thinks it will manage??

[GAR]

This is too true.

I have RMA'd 3 680i's and 1 780 over the last 14 months or so.

I was only trying to run 1600 FSB with divider to hit 1066mHz memory.

I never cranked any voltages up to crazy levels for the oc's , 2.1 -2.2v on the ram depending which kit i was using and normal mobo volts for a conservative 1600 mHz OC.

The boards would all invariably end up unstable after a few months and require lower and lower mem speeds to remain stable, untill they'd just start throwing me C1 errors at boot-up and locking up while running.

I learned my lesson and just started using 800mHz on the memory since those days.

Yeah man, i have done a step up with eVGA, and will have my new 790i soon.

[GutterZ]

Also got a E8400, cuold you post your bios settings?
I would like to have it 4.0 Stable? Thinks it will manage??

Here are my settings for 4050 on the 780i
Multiplier 9X
FSB 1800
Cpu core is 1.41250, Real is 1.38 such as CPU-Z reading an bios
Fsb is 1.3v
memory is 2.1v
SPP 1.50 this is the main factor of my stability
GTLVREF auto of 00mv

Hope this helps.
My Vid 1.1125 on my chip

[Hughyhunter]

This is the best I've done yet... I'm getting there!

[tet5uo]

This is the best I've done yet... I'm getting there!

Sweet dual core scores man.

You've almost caught up to my quad/G92 SLI scores!

[Furiøùs]

Yeah man, i have done a step up with eVGA, and will have my new 790i soon.

How much was it?

[Furiøùs]

1.632v on air.. thats madness. Not even worth the risk of totally burning that chip to pieces

[tet5uo]

1.632v on air.. thats madness. Not even worth the risk of totally burning that chip to pieces

To each their own.

If he knows the risks and wants to crank the juice anyhow, then more power to him!

(no pun intended)

[FuriousSalesman]

how much voltage is too much voltage?

[tet5uo]

how much voltage is too much voltage?

That's a question that can start a whole other 50 page thread...

Oh wait it has

[cloned]

For me anything over 1.6v without super heavy cooling like dry ice cooling or super powerful watercooling.

[Hughyhunter]

I probably should have started something lower to start with. The truth is I rushed the overclock to 4500mhz and wanted to pass 3dmark to see what I get! I got greedy! I saw I guy do 1.8v @ 4900 here and wanted to give it a shot.

So what the heck! I tried it. The weird thing is I had to have the memory unlinked to 800mhz. When I had it linked it wouldnt boot. I had it set to 5:4 though. I wonder why it wouldnt boot. It's the same essentially right? I thought it would be the other way around.

[Furiøùs]

Im thinking about getting the 790i.. just need to figure out how much the step-up is before i do it.. GAR how much was it

Its more stress on the mobo to do linked.. I think thats the problem.. I cant get linked : auto on this board at 1780QDR.. Its just flaky like that, im not sure whats making it do it either

[op1e]

ok backed memory down to 800mhz, i think this is the cause for the random freezing, this board has problems running memory at higher frequency at high fsb, 1600+

Not happy to hear that, just got this board set up today. I had the same deal with my 650i. Looks like 3.6/1066 will be my everyday, and 4.0/800 for bench. Mine has the P02 bios, should I stick with that?

[DRAGONKZ]

Is the nvidia 780i chipset known for having poor SATA performance? (Reason i ask is that i just ran some HDD benchies on my system and the results were alot lower then i expected)

[Maxfly]

sorry i cant help ya Dragon.
just wanted to share my preliminary results with a xeon 3070 so far.7x525 3.7 1.475v mem 1:1(1050)2.2v,spp 1.45,mcp 1.5v.been running orthos blend for a half hour so far.im very impressed with this mb.cant wait to test a q6600 on it.

[aussie-revhead]

Hi guys , I have not read this whole thread yet but I will . I have an x3350 on the way , is it worth trying it on my evga 780i ? How has the max fsb turned out on these with quad core ?

[Starage]

Well I was stuck at 1800 FSB with a E8400.
But after a month at that speed, I change some voltages, I am currently running 100% at 1900 FSB (475*9=4275) on air cooling.
Wow this board is not that bad at all.
790i and ddr3 plus 1000w PS is not in my budget, LOL.

[Hughyhunter]

I'm going to work on 1900FSB soon also... but very stable and happy at 1800. 1.375vcore.

[aussie-revhead]

Thanks guys , what about with quad cores ?

[Hughyhunter]

Thanks guys , what about with quad cores ?

I'm not sure with the Q6600 but I see no reason why it cant hit above 1600fsb. Their is actually a youtube video of a dude overclocking the Q6600 with this board found here: http://www.youtube.com/watch?v=ApUiWgzUkGM

He makes it seem pretty easy.

The Q9300 I bet will hit about the same with a little higher bandwidth. I cant wait to see what the Q9550 will do!

[itou31]

Hi,

I'm with my Q6600 G0 on the XFX 780i :
- 9x1650 with vcore 1,44V boot and stress ok (occt or wprime) but doesn't boot after reset.
- 8x1856 boot ok and reset ok.

why ?

[fadetoblack]

how do you guys undo the pencil mod? just wipe the resistor with your finger or something?

[Furiøùs]

All you have to do fadetoblack is take an eraser and rub it out, its easy


Also, update on my OC'ing. Tryed 2050QDR, at first it wouldnt boot, hanged on 4E code. rebooted twice.. got back in, went back to my usual settings, blah blah. got the itch again, tried it about an hour ago and it booted it.. LOL.

Yea, the board is definately odd, it failed OCCT after 20min, not worth it. I rebooted to change voltages and it was corrupting Vista on me, vista told me system files were critically corrupted. I ted my pants, then i put back everything super fast and im not going to touch it. I did want to try it since i got the TRUE today. temps are 10c under load then my Zalman 9700LED was.. Great cooler, but its older now. I did have to change the 250mm fan on the side of my case, i moved it to OUTSIDE the case, so instead of in, its outside of the case.. looks kinda retarted but its still pretty cool. i really didnt want to lose that fan heh

[aussie-revhead]

Such a large results thread and nearly all of them dual cores , doesnt anyone have quad core results ? I want to know what chance I have of getting a 45nm quad to 8x475 or maybe higher with this mobo . Leeghoofd you would have tested this , please tell .