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

[fadetoblack]

let us know what evga says.. although i havent had any issues in vista 64, i do have problems with nvgts.sys in xp 32 bit

[Skrips]

Ok, fellas, I need help. I have posted a help thread in the Itel support section, but since it pertains to this board I am posting a link to the thread I started to see if any of you super gurus can lend a helping hand!

Thanks in advance. The link to the other thread is here:

http://www.xtremesystems.org/forums/...d.php?t=177343


-Skrips

[Hughyhunter]

How do I manually set NB voltage? Is this the same as CPU FSB?

I have the voltages set to Auto for cpu and in cpu-z it says it is 1.32volts. Why is this higher than what others are getting in auto settings?

I flashed bios yesterday.... I have an E8400 on air and want 4.0ghz. I'm thinking I will set FSB to 1800 with a 9x multi. What voltages should I start with? I'm thinking since it says 1.32 in cpu-z it should be good for now.

Also I have sli enabled (expert) running linked with sync for memory. This should give me 900mhz. Do you think i'll need to loosen timings? Isnt the only other way to run 800mhz with an 1800mhz fsb to run unlinked and manually set speed? I'm new and need help.

memory is OCZ reaper pc6400 2X2 (that's why I need to know how to bump NB voltages) running at 1600fsb linked in sync mode with 4-4-4-15 timings.

Help me!!!

[X.T.R.E.M.E_ICE]

Whats the highest multi that this board supports for the QX9650?

[ncsa]

Have you tried the settings here outlined earlier? These are working with a QX9650 / Q6600 on an eVGA Board running the P03 Bios (XFX version)?

How do I manually set NB voltage? Is this the same as CPU FSB?

I have the voltages set to Auto for cpu and in cpu-z it says it is 1.32volts. Why is this higher than what others are getting in auto settings?

I flashed bios yesterday.... I have an E8400 on air and want 4.0ghz. I'm thinking I will set FSB to 1800 with a 9x multi. What voltages should I start with? I'm thinking since it says 1.32 in cpu-z it should be good for now.

Also I have sli enabled (expert) running linked with sync for memory. This should give me 900mhz. Do you think i'll need to loosen timings? Isnt the only other way to run 800mhz with an 1800mhz fsb to run unlinked and manually set speed? I'm new and need help.

memory is OCZ reaper pc6400 2X2 (that's why I need to know how to bump NB voltages) running at 1600fsb linked in sync mode with 4-4-4-15 timings.

Help me!!!

The QX9650 is fully unlocked on this board with current BIOS such as P03.

Whats the highest multi that this board supports for the QX9650?

[X.T.R.E.M.E_ICE]

The QX9650 is fully unlocked on this board with current BIOS such as P03.

So i will be able to use as high as 16x Multi sweet.

[radical]

What, that this is a 780i board discussing? Or that there are issues with SATA drives on this MoBo. Further update, verified that the IDE burner works just fine, no change to software, so I have sent a note to eVGA to see what they say about it. There shouldn't be a problem with mixing optical drives and a RAID array.

rad

eVGA has just informed me that this is a known issue with the 780i boards. They also advised me that a BIOS update is in the works to fix this issue.

FYI

rad

[Rincewind]

eVGA has just informed me that this is a known issue with the 780i boards. They also advised me that a BIOS update is in the works to fix this issue.

FYI

rad

Look for the silver lining

[FlyBoyGeo]

eVGA has just informed me that this is a known issue with the 780i boards. They also advised me that a BIOS update is in the works to fix this issue.

FYI

rad

Thanks for the info.

[saphirex7]

Many Thanks as well for the nfo. Any word about a new version of MediaShield? or perhaps a new version of nForce 780i chipset drivers?

[Dyselinck]

I was wondering, i'm getting an EVGA board soon, and i'm gonna OC'it.
I was wondering wich components i should watercool to be safe.

PWM?
NB?
SB?

I dont want them to get to high for temps. But if it's not critical to WC them, i'm not going to...

[GAR]

So i have been running the board, prime 95 blend is stable for hours, one thing that is REALLY!!!! getting on my nerves is, my computer once a day, its getting on my nerves, system is stable and can play crysis for hours, TF2 for hours...........this is really annoying.....it just hangs, no bsod no restarting, just a frozen screen..........anyone run into this issue?

[GAR]

Also, i just realized, pci-e 1 and 2 slots can only be overclocked within windows with ntune software, otherwise only pci-e is controlled with bios, i find this odd.

[GAR]

ok so i figured out pci-e 1 and 2 are by default working at 125mhz, controlled by the nf200 chipset.

[ncsa]

IIRC when you are running PCIe2 compliant GPUs then the OC options are removed leaving just PCIe_3 visible in BIOS.

Also, i just realized, pci-e 1 and 2 slots can only be overclocked within windows with ntune software, otherwise only pci-e is controlled with bios, i find this odd.

[msgclb]

I feel your pain! I finally got my Q6600 @3.6 400x9 800ddr 1.575v Prime95 to remain stable for 24 hours using Blend. I previously thought I had it stable with 1.45v using small FFTs but then I noticed your conversation concerning the best way to determine stability and found that using Blend it failed around 7 hours.

CPU Core: 1.575 Idle: 1.52 Load: ~1.46-1.48
CPU FSB: 1.3
nForce SPP: 1.5
nFourc MCP: 1.5
HT nForce SPP <-> MCP: 1.3

I tried a CPU Core of 1.55v but that failed. I'm not sure I can go any higher.

I haven't yet had a game cause a frozen screen.

GAR, would you recommend th 4GB G.Skill PC8000 memory that's in your signature and is it the G.Skill F2-8000CL5D-4GBPQ (2GB x 2) EPP Ready.

I'm looking for a good 4GB memory set and another 8800GT to match the one that I have.

[GAR]

I feel your pain! I finally got my Q6600 @3.6 400x9 800ddr 1.575v Prime95 to remain stable for 24 hours using Blend. I previously thought I had it stable with 1.45v using small FFTs but then I noticed your conversation concerning the best way to determine stability and found that using Blend it failed around 7 hours.

CPU Core: 1.575 Idle: 1.52 Load: ~1.46-1.48
CPU FSB: 1.3
nForce SPP: 1.5
nFourc MCP: 1.5
HT nForce SPP <-> MCP: 1.3

I tried a CPU Core of 1.55v but that failed. I'm not sure I can go any higher.

I haven't yet had a game cause a frozen screen.

GAR, would you recommend th 4GB G.Skill PC8000 memory that's in your signature and is it the G.Skill F2-8000CL5D-4GBPQ (2GB x 2) EPP Ready.

I'm looking for a good 4GB memory set and another 8800GT to match the one that I have.

Yeah they are awsome, if you get them make sure you use 1.5v on the NB when using 400fsb, then 533mhz should be easy.

[GAR]

IIRC when you are running PCIe2 compliant GPUs then the OC options are removed leaving just PCIe_3 visible in BIOS.

ohhh, good to know, they work at 125mhz when in pci-2 anyway

[msgclb]

Yeah they are awsome, if you get them make sure you use 1.5v on the NB when using 400fsb, then 533mhz should be easy.

I couldn't resist buying them from Newegg for $114.99. That included an instant savings of $35 and free 3-day shipping.

[icon57]

So i have been running the board, prime 95 blend is stable for hours, one thing that is REALLY!!!! getting on my nerves is, my computer once a day, its getting on my nerves, system is stable and can play crysis for hours, TF2 for hours...........this is really annoying.....it just hangs, no bsod no restarting, just a frozen screen..........anyone run into this issue?

nope....but i do get kind of a cold boot issue...with the clock in my sig, if i boot from a cold start, i need to go into bios, and just f10 outta there without changing anything, and then it will boot...most of the time..

[truehighroller]

I have alot of issues with mine. I can't get it to boot in between 3.68~ and 3.79~ after that it opens up a little then I can't get it to be stable though. I can push 3.6 all day stable with a Q6600 G0 by the way sorry. I am able to stick that processor right back into my other MB, a GA-P35-DQ6 and crank it right up to 4.15Ghz with out a problem?? I have messed with the +..mv settings and found that with a +105 setting on all of the 0-3 that I can sort of get it stable @ 1700 but, 1650 will not go with +85mv or +105mv?. This board is freaking wierd. I am about to take it back I swear.. Does this VDROOP mod do any good? Is it really worth the hassle? I appreciate input on this. I will tell all the settings I tried which were like everything under the sun. I am a pretty avid overclocker so,,.

[joe.denice]

ok guys, just had another 780i just die out of the blue... rebooted after installing updates and the machine is stuck at the first post screen. This is now 3 boards for me in various builds that have kicked the bucket. Mind you now 2 of them were for builds for other people with no overclocking.. mine was.. but it was in spec in terms of overclocking. I went back to my trust maximus formula board and I am currently playing with a 3870x2.

[truehighroller]

ok guys, just had another 780i just die out of the blue... rebooted after installing updates and the machine is stuck at the first post screen. This is now 3 boards for me in various builds that have kicked the bucket. Mind you now 2 of them were for builds for other people with no overclocking.. mine was.. but it was in spec in terms of overclocking. I went back to my trust maximus formula board and I am currently playing with a 3870x2.

I think I am going to take this back to the store and get my money back. I want a x38 or 48.

[joe.denice]

I think I am going to take this back to the store and get my money back. I want a x38 or 48.

Yeah overall I think they did some improvements with the 780i but I have used 6 now and 3 have run into problems. These problems are similar to what plagued the 680i boards.

[paulxmn]

Evga 780i Bios P03 Windows XP SP2
Intel Core 2 Q6600 G0 D-Tek Fuzion/Swiftech MCP655/120mm Dual RAD
Corsair Dominators PC8500/Corsair Dominator RAM Cooling
Evga 8800 GTS 640MB SLi Drivers 169.21/NForce Beta 6.0/ GPU Settings 620/920/1400
WD 250GB SATA ll TT 750W ToughPower/TT Armor Case

First Run @3600 MHZ
http://i44.photobucket.com/albums/f1...80i/063600.jpg
http://i44.photobucket.com/albums/f1...verest3600.jpg

Notes: Replaced NB Fan with 60mm. Placed Antec Spot Fan over mosfets. MCP Temp remains @ 91C must remove and replace TIM

Core 2 Q6600 G0 3850MHZ Memory Unlinked 1100
8800 GTS 640MB SLi

http://i44.photobucket.com/albums/f1...0i/1890706.jpg
http://i44.photobucket.com/albums/f1...verest3850.jpg

Core 2 Q6600 4000Mhz Unlinked/Sync
http://valid.x86-secret.com/show_oc.php?id=313845
http://i44.photobucket.com/albums/f1...0780i/4000.jpg
http://i44.photobucket.com/albums/f1...80i/034000.jpg

Removed the NB assembly and removed all the foam spacers...applied A5. Replaced the NB fan with a 16mm Spire CPU fan/Antec Spot Fan on the Mosfets. Spire is blowing down to stop moving the heat of the GPU's up.. temps of NB now range from 56C to 65C which is acceptable.