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

[Blacky]

Hi guys, I received my 780i EVGA today and today I found this

http://www.tigerdirect.com/applicati...=CP2-DUO-Q9300

is it worth it? does the 780i really works with yorkies without any problems or bugs? I currently have a C2D 6750 @3.6GHZ currently on my MARS, I dont know if that would be enough for my G92 GTS Sli please I need advice thanks

[Starage]

Hey I have an E8400 running on the 780i at 1800 FSB @ 4050. Best of luck!

[Blacky]

hey starage nice mem latencies I ordered 2gb 8500 crucials as well

[Hughyhunter]

I was watching a video that someone had posted here. And the video tells about overclocking the 780i. In the video the guy says that we need to set GTLVREF's to +0.5 in BIOS, or, we will receive instability? Is this true?

http://www.youtube.com/watch?v=ApUiWgzUkGM

I'm the one who found that... you know... I set it to those settings and I'm pretty sure it helped me achieve more stability. I cant pass prime without those settings. I have no idea what those lanes are and what they do but it works for me and it isn't hurting anything.

[Starage]

hey starage nice mem latencies I ordered 2gb 8500 crucials as well

Thanks. But 1000 is max I can get out of these sticks. But I can live with these settings.

[DavidNJ]

How well does this board support 4 sticks?

I would either be running OCZ Platinum DDR800 4x2GB 5-4-4-15 or Corsair Dominator DDR1066 4x2GB 5-5-5-15.

I've had issues running four on a P35 board. I'm told an x38 works better than the P35. How is the 780i?

[Tony]

Looking for some info.

Have any of you guys noticed running 2.2V or higher vdimm for a while suddenly has your board being unstable?

I have seen a few people rma'ing memory only to find the new kits act as bad as the old ones, the end user then swaps or tests the ram in another board only to find the ram is fine.

So, if you are running high voltage how is your board fairing up?

[tet5uo]

Looking for some info.

Have any of you guys noticed running 2.2V or higher vdimm for a while suddenly has your board being unstable?

I have seen a few people rma'ing memory only to find the new kits act as bad as the old ones, the end user then swaps or tests the ram in another board only to find the ram is fine.

So, if you are running high voltage how is your board fairing up?

I think mine just went bad.

I had my Corsair XMS2 8500 running at 1066 2.2v for months, now suddenly it won't stay stable anymore... have to run 800mHz mem to even boot successfully..

[Leeghoofd]

Looking for some info.

Have any of you guys noticed running 2.2V or higher vdimm for a while suddenly has your board being unstable?

I have seen a few people rma'ing memory only to find the new kits act as bad as the old ones, the end user then swaps or tests the ram in another board only to find the ram is fine.

So, if you are running high voltage how is your board fairing up?

I benched with the Gskill PC8000HZ (4-4-4-5 2T ) sticks Tony at 450FSB with 10X and 1200mhz 2.35volts 5-5-5-15 2T no issues with P03 bios on the eVGA... but a bench run only takes what 15 mins.. but I repeated them during 3 days to get some good scores... didn't do a thing here...

[joe.denice]

I think mine just went bad.

I had my Corsair XMS2 8500 running at 1066 2.2v for months, now suddenly it won't stay stable anymore... have to run 800mHz mem to even boot successfully..

I keep mine at 1.85 volts as speced to make sure I don't kill it off.

[tet5uo]

Well, the listed specs for the kit I got were 2.2v for that speed... figured it would be ok.

I think the memory is actually still good though, my other set of 1066 ballistix can't run 1066 anymore in this board either.... pretty sure the boards crapping out.

[DavidNJ]

Are you sure it is the memory and not the memory controller? On my P35, I was told it had to be a memory problem. However, cranking the fsb down to 266, and setting the memory at spec (800 5-4-4-15 or 1066 5-5-5-15 depending on the sticks) it ran just fine. Although Memtest freezes after a couple of hours or so. Freezes, not reporting an errors.

I would try that first. With the QX9650 I would try 333 fsb, you could get most of the speed back my raising the multiplier to 12. However, if it is the memory controller, you probably need to RMA the board.

[Psycho_eddie]

Cant get my system to boot now, comes up with 7F code

System was working fine, and was no longer OCed just running stock speeds, new ram arrived today so went to put that in... then i get long beep upon startup but no post!

Tried with old ram and new and system does long beep and fails to post!


Tried turning off PC, then resetting Cmos with jumpers

Also tried turning off system and taking battery out.. still no avail.. perhaps not long enough?

[Furiøùs]

Board is picky with FSBRAM ratio's, anyone else notice it? I cant do unlinked 1780 / 1000 .. 1780 / 1088 etc none of it works.. Will bench for a couple of minutes to an hour depending on what i try. Voltages dont help. So now im at 1780 / 800. 4-4-4-12 1.95v on the mem and low voltages on SPP / MCP (i have the modded SPP fan)

[Hughyhunter]

I have mine at 1800mhz with the memory unlinked at 800mhz. It give it a 9:8 ratio in CPU-Z. I think that you will have some luck with that. Try not to give it odd numbers maybe. Shoot for 1800mhz and 1000 in your case. The ratio should be 9:10... it might work better!

[Furiøùs]

I've tested those settings before. Meh it doesnt really matter much to me. I have low voltages with a speedy system. Im fine with where im at. Until i get the itch to tweak again i'll leave it. Having to much fun gaming etc on this ubar system

[douirc]

Board is picky with FSBRAM ratio's, anyone else notice it? I cant do unlinked 1780 / 1000 .. 1780 / 1088 etc none of it works.. Will bench for a couple of minutes to an hour depending on what i try. Voltages dont help. So now im at 1780 / 800. 4-4-4-12 1.95v on the mem and low voltages on SPP / MCP (i have the modded SPP fan)

i had a heck of a time finding stable combinations. 400, 450 and 475 seemed to be the only ones that worked for me. i can't get the board to post at 500. i ended up at 475*8, 1:1 linked and synced (i think that's what bios calls it). although oc'ing was more difficult than my 680i, it's doing a much better job. i was able to bench at 450*9 on the 780i, whereas the 680i wouldn't come close.

[GutterZ]

Read your cpu-z validation. Your getting 544 fsb outta 780i? Is this common with Wolfdale? Quads are getting 450 on these? I might get on of these boards. I lost my overclock on 650i and cant get it back. Cant get 3600 even at 1.42 without locking up, and cant run ram at 1000 if cpu overclocked at all.
Plus I'm sure 8x 8x might be holding my SLI back.

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

[GAR]

Ok, im having some random freezing for no reason, feels like sometimes i can do anything for hours and no problems, sometimes it freezes, i have passed prime blend and memtest for hours with the current setup.....anyone else, im in line for a step up, i think im going for the 790i, if not im gettind rid of this board......anyone else get this??? plus the fsb holes are hindering my cpu, its capable of 3.85ghz perfectly stable, but thisboard has some nasty holes.

[Hughyhunter]

I'm very impressed GutterZ!

I'm assuming you just did that for one suicide run on 3Dmarks? That is an incredible score though. I'm sitting at 18k... a little more actually but not much.

How did you get your GPU clocks so high? I'm assuming you did a volt mod?

I was wondering... I'm running 2x2GB kit of OCZ reaper. I made the mistake of getting the pc6400 kit. Right now my settings are unlinked 1800mhz FSB and 800mhz memory. It's 9:8 in cpu-z. Timings 4-4-4-15-2T.

I was thinking that I might try to go for linked and 1:1 or sync for 900mhz. I'll have to loosen up a bit 5-5-5-15.

Should this perform better? Should I try 1T timings? Would 1T perform better?

Also I cant boot past 4300mhz. What's the deal with that? I cant help think that it's Windows Vista but people here have vista and are booting at 4500mhz.

[GAR]

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+

[tet5uo]

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+

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.

[GutterZ]

I'm very impressed GutterZ!

I'm assuming you just did that for one suicide run on 3Dmarks? That is an incredible score though. I'm sitting at 18k... a little more actually but not much.

How did you get your GPU clocks so high? I'm assuming you did a volt mod?

I was wondering... I'm running 2x2GB kit of OCZ reaper. I made the mistake of getting the pc6400 kit. Right now my settings are unlinked 1800mhz FSB and 800mhz memory. It's 9:8 in cpu-z. Timings 4-4-4-15-2T.

I was thinking that I might try to go for linked and 1:1 or sync for 900mhz. I'll have to loosen up a bit 5-5-5-15.

Should this perform better? Should I try 1T timings? Would 1T perform better?

Also I cant boot past 4300mhz. What's the deal with that? I cant help think that it's Windows Vista but people here have vista and are booting at 4500mhz.

No volt mod just upped the MCP voltage. I realy have put no time into overclockin the cards, Hwbot gives me a poor rating for my cards The case temp was 25f there on stock coolers. Ive never tried 1T just link an sink.
I put on optimal settings boot it then go an see were there at an lower them. If it flys then cool if not I keep turning dials 1 at a time.
I realy cant help ya to well. I just went intel 5 months ago an had only brief experiance with the AMD 4600. So Im still learning to. Its just a process of elimination going for stability or that high. Besides once you get your highest bench or most stabilist max FSb or Cpu speed, the fun is over! Now you got to buy something else.

[Hughyhunter]

GutterZ... what was your voltage set to when you did 4900mhz?

[GutterZ]

GutterZ... what was your voltage set to when you did 4900mhz?

I maxed out vcore which i think is 1.8v an 1.78 after vdrop...
Everest shows it in the lower right... Thats my best Super PI 1M too
not to bad for a dual core.