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

[Khaotic]

One thing I noticed about the 680i, that of course the 780i copies, is the tRC advanced memory timing. I'm using the G.Skill F2-8000CL5-2GBPQ memory which wants a tRC of 45 when running at 1000Mhz. These 680i/780i boards can only ramp that timing up to 30.

Any thoughts as to what this could do to stability?

[fadetoblack]

icon57, i noticed you have the same psu as me and same size case. how did you manage to get all those wires tucked inside with tri sli? i only have dual sli and three hds and there is no room for all the wires inside, half of them are sticking out.

also, how do you guys monitor your SPP/MCP temps? in the bios it tells you MCP but i dont see SPP anywhere. also i want to be able to see them in windows while stress testing.

[icon57]

icon57, i noticed you have the same psu as me and same size case. how did you manage to get all those wires tucked inside with tri sli? i only have dual sli and three hds and there is no room for all the wires inside, half of them are sticking out.

also, how do you guys monitor your SPP/MCP temps? in the bios it tells you MCP but i dont see SPP anywhere. also i want to be able to see them in windows while stress testing.

Yo Fadetoblack....for the moment i am benching this board outside the case,
i have not yet picked out a case for this setup. I have an Xclio i might use, as it seems to have good space, and decent airflow.

Great PSU btw

right now i am concerened about my super high MCP temps which are hitting 106 c

what temp is yours?

TIA

[fadetoblack]

Yo Fadetoblack....for the moment i am benching this board outside the case,
i have not yet picked out a case for this setup. I have an Xclio i might use, as it seems to have good space, and decent airflow.

Great PSU btw

right now i am concerened about my super high MCP temps which are hitting 106 c

what temp is yours?

TIA

yup, the psu is great. i like the modular cables. as for MCP temps, in the bios i think it was somewhere b/w 50-60. but that was at stock speed i think. i dont know how much it went up while stress testing because i dont know a way to see the temps in windows. are you getting the 106 reading from the bios or from software?

[icon57]

106 was my bios reading, and the cpu reads 37c mobo reads 35c MCP 106c....

[fadetoblack]

hmm.. and i thought my MCP was high.

[Leeghoofd]

I still dont understand how that works, being that it wont move any faster to a cooler object (w/c NB), but.......sure, you can call it a win if it makes you feel better!!!!

I cannot vouch for 780i , but the Fuzion block on the Maximus formula SE helps laods on the NB and SB too (same basic idea ), I lost about 15°C on the NB and about 10 °C on the SB with that restrictive block.... maybe it's the NB no longer heating up the extra components linked to it...

No idea about physics , thermodynamics etc... but it works pretty good on the X38....

[GAR]

i put mine on last night, no probs at all, idle temps about 37c...not in the case yet...still benching it

I understand it will work with no problems, but if you look at it it touches some parts on the back of the board, im afraid of crushing them.

[joe.denice]

could you please tell me all your bios settings for you 4ghz oc? i had my qx9650 stable at 4 on my previous x38 but i cant even get it stable at 3.6 on this 780i.

pretty much everything at stock, vcore is set at 1.335 volts (or around that) and I did the pencil mod to fix the vdrop. I set the ram voltage to 1.95 volts and i pretty much have all the other volts at the 2nd lowest possible setting. I don't want to stress the machine to much after seeing all the issues with the 680i boards.

[Yooper]

My MCP used to be 60c idle when I air cooled. Just went to water cooling about a week ago and now the MCP idles at 50c and goes up to 54c while under load.

[icon57]

I understand it will work with no problems, but if you look at it it touches some parts on the back of the board, im afraid of crushing them.

i remember seeing your post, and as i was installing it, i was looking at the back of the mobo, and thinking "let me see what he is talking about..." but i just kinda took a quick look...and thought it looks ok, no probs...and ba,m....

maybe thats why i am being cursed with 106c MCP?

[msgclb]

My first results with my new EVGA 780i...



It seems that I'm having some luck with the MCP temp as it has stayed at 54c.
All the voltages are on Auto but I set the SLI Ready Memory to Max.
This test is on air but I'll soon put the mb in my case and hook up the water.

[fadetoblack]

how come my mobo doesnt recognize my sli ready memory? http://www.ocztechnology.com/product...n_dual_channel

[msgclb]

how come my mobo doesnt recognize my sli ready memory? http://www.ocztechnology.com/product...n_dual_channel

I've seen in some threads that using 4GB of memory is the problem. You might try 2GB to see what happens.

I haven't figured out how this 'SLI-Ready Memory' option works. Even though I don't think my memory is SLI-Ready I have these options: Disabled, CPUOC 0-5, CPUOC MAX, & EXPERT. I currently have it set to MAX.

When I noticed the MAX option was available I selected it and with a 266FSB my memory was set to 1142DDR. So far almost everything else is set to Auto.



Edit:
I added the image of my CPU-Z SPD tab. I didn't realize that my OCZ memory was being recognized as 'SLI Memory Detected' until on reboot I noticed in on the initial BIOS screen. I've had these OCZ modules since 06/08/2007. So I'm guessing if you have a EPP timing tables then you have SLI-Ready memory!

[cowie]

mine lasted three days
than "ff" nothing else tried jumping batt out and all.
i took it easy on it too.
i liked before it die
now rma

[FuriousSalesman]

I had that problem. My computer wouldn't post but would show FF. I fixed it by taking the little spring on the back of the motherboard and make sure it was grounded.

[specops]

I just got my 780i today and was wondering if any one else is running with a q6700. This is a great board I will have to say my self. I jumped from 2.66 straight to 3.33 in no time flat with out any hickups I am currently running prime right now to make sure I am stable. So far so good. I am a little over an hour into prime. ne other thing is that Hardware monitor does not read mb temps right what is everyone using to report temps on the 780i? Thanks in advance.

[icon57]

mine lasted three days
than "ff" nothing else tried jumping batt out and all.
i took it easy on it too.
i liked before it die
now rma

hmmmm....mine didnt even make it that long....
i now have the dreaded "FF" error
rma is in process

[Reinvented]

hmmmm....mine didnt even make it that long....
i now have the dreaded "FF" error
rma is in process

Did they change what the LED means? On the 680i, FF means "fully functional"...

So, what's this one mean then if it causes you to RMA your board?

[jas420221]

Did they change what the LED means? On the 680i, FF means "fully functional"...

So, what's this one mean then if it causes you to RMA your board?

FF is fully functional.......

[cowie]

[QUOTE=Reinvented;2739623]Did they change what the LED means? On the 680i, FF means "fully functional"...
QUOTE]
thats all fine and dandy but you need other led posts before hand.
bios is borked is my geuss

[GOZR]

Anyone run this board with an 8400 or 8500 cpu..? i'm considering buying it since i need SLi 2x 16.. or is there an other alternative.. thank you

[Robilar]

It works fine with the 45bm processors.

Incidently Everest will display the MCP temp in windows. Mine never exceeds 55C

[GOZR]

Yeas i think this is the one i have to go with too bad there is no 780i with two PCIE 2x 16 only not 3..

[Khaotic]

I've been tinkering with my eVGA 780i since last weekend.
Finally, 5 days later I've got an overclock pegged down.
With the E6850, I've managed a 3.825Ghz overclock with a 1700 FSB. The CPU needed a slight Voltage bump but the North Bridge, South Bridge, and every other motherboard voltage has been left at AUTO in the BIOS.

Has someone taken on the chore of developing a 'chart' per-say that shows how much extra voltage they needed to give the different components to achive a given FSB? Like, how much to hit 1750, 1800,1850, etc.etc.etc.