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

[Leeghoofd]

Say I am running a 450 FSB, I am looking to run my ram linked 3:2 at 1200Mhz.

I am looking at these (Model PDC22G9600ELK) Patriot Extreme Performance 2GB Kit (2 x 1GB) PC2-9600 1200MHz PC2-9600 DDR2 Dual Channel Kit Memory, Timing 5-5-5-12

Will this 780i board be okay to run the ram at 2.3v?

How good is this ram?

What do you think you will gain in real time performance ? if you do benchmarks yes then you will notice an improvement in scores going from 1000 to 1200mhz ram... daily basis hardly worthwhile mate... have you tried if ya ballistix don't run 1200mhz 5-5-5-18 at 2.35 volts ? Test them and see if it is noticeable to you ... Hardly think so, but this is still Extremesystems isn't it...

[GFDuke]

Please could someone with this mobo, tell me how to do the Pencil mod to stableize Vcore on load?

Go to EVGA and view the 780i overclocking forum. Its on the first post if you look for it.
Its' not all that important to do though. Kind of a waste if you ask me. Besides risking dropping some lead/graphite in your board whats the sense. If you know you're getting vdroop then just account for that when you input your voltage in the bios. unless you're going over like 1.70 vcore. Then thats just stupid unless you're on LN2, good water or vapo.

[gmod]

Go to EVGA and view the 780i overclocking forum. Its on the first post if you look for it.
Its' not all that important to do though. Kind of a waste if you ask me. Besides risking dropping some lead/graphite in your board whats the sense. If you know you're getting vdroop then just account for that when you input your voltage in the bios. unless you're going over like 1.70 vcore. Then thats just stupid unless you're on LN2, good water or vapo.

Iam pretty sure just about everyone here will disagree with you...And Iam also pretty sure your the only one that has said its a waste to do..There is pretty much no risk at all in doing it...If you can build your own computer you should beable to do this mod without issues

[malik22]

does 80gb of ram and Q6600 work well on this board?

[[XC] NetburstXE]

does 80gb of ram and Q6600 work well on this board?

80GB of RAM?
I'm guessing you mean 8GB of RAM. If so, it should work fine.

[GFDuke]

Iam pretty sure just about everyone here will disagree with you...And Iam also pretty sure your the only one that has said its a waste to do..There is pretty much no risk at all in doing it...If you can build your own computer you should beable to do this mod without issues

There is really no overclock benefit. I've done the mod. If you have proof there is i'd like to see it. I think vdroop is a power saving feature. Its design was meant to keep the cpu cooler. And there is risk.

[jas420221]

No risk in this...seriously. It just helps overclockers doesnt really help overclockING. After this mod I made it so that on load, my volts actually go UP .01 on load instead of sagging.

[Psycho_eddie]

So can someone please explain how to do this Pencil mod exactly?

Got my board today, got 4GB working in vista X64 nicely now

Also when putting board together slapped on an 6CM fan screwed into unit sucking air out the NB

[GFDuke]

http://www.xtremesystems.org/forums/...3&postcount=16
Just shade in the area where it says 100k VR with a #2 pencil

[Psycho_eddie]

Hi guys, before pencil mod i was having to bios set 1.4815V to get 1.4V loaded real!


Now i set 1.4V bios... it gives 1.392 idle then 1.400 load

That same 1.4V did me 450x8 stable 24/7 on my X38 mobo! So let the OCing begin!

@ GAR your 3.6GHZ Q6600 clock is 400x9 or 450x8?

Whats your full bios setting used to obtain said above clock?

Last question... in first post said to raise NB volts to 1.5V+ if using 4GB Ram which i am... but which value in bios reffers directly to the NB??....SPP??

[johnp1983]

Hello,

someone can help me in ocking my xFx 780i?

It's mu first nForce board... so I don't know very well how to move in the board bios.

Specially:
1)what's the meaning of HT (5x, 4x etc.)? On Intel P35\X38 there aren't this voices.
2)I need to increase QDR instead of FSB like P35\X38... right?

I need to go on 3600Mhz (400x9) for @ daily use with my E8400...

I've done pencil v-mod on the board, and it's running fine with no v-droop... I've also changed thermal grease on the spp and mcp using zalman stg-01.

Please help me. Thanks

[Leeghoofd]

run QDR 1600 and ram at 800 or 1066Mhz, might need a small increase in chipset voltages for the Nb and a bit more Vcore for the CPU , estimating around 1.2Vcore if you got a nice CPU

Just adjust CPU Vcore , FSB QDR and Ram speed and voltage, leave rest on auto for the voltages, should work out of the box...

There's no need to mess with HT, or follow this guys stuff, covers it all ::

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

[GAR]

Hi guys, before pencil mod i was having to bios set 1.4815V to get 1.4V loaded real!


Now i set 1.4V bios... it gives 1.392 idle then 1.400 load

That same 1.4V did me 450x8 stable 24/7 on my X38 mobo! So let the OCing begin!

@ GAR your 3.6GHZ Q6600 clock is 400x9 or 450x8?

Whats your full bios setting used to obtain said above clock?

Last question... in first post said to raise NB volts to 1.5V+ if using 4GB Ram which i am... but which value in bios reffers directly to the NB??....SPP??

Hey....im using 400x9, spp is the NB which should be set to 1.5v........

full bios settings i can get later on when i get home from work.

[GutterZ]

@ GAR

What 3dmark06 defult score you get?

With your Q6600 @ 3600

And your 8800GTS SSC SLI?

Here is my score the cards are clocked at 700/1000 linked
http://service.futuremark.com/compare?3dm06=5375816 Edit... Sorry just seen you have GTS my bad.

How high are your guys's an girl's clocks going on Quads with the 9x multiplier?
Im stuck at 4.1 bench an 4.2 windows, nothing more no matter what. 3 of my Q6600's all stop there. My E8400 Benches 4.75 an only does Windows at 4.8.. So can anyone do higher with the 9 multipler with them Q's. Cause I want to know if its me or if thats the max for quads on the Nvidia chipset without going QX.

Nvidia an Intel are throwing blows an its coming out of SLI'ers pockets
Edit...Last comment was uncalled for... Deleted...

[Hughyhunter]

hi every one just got my new rig boot and everything is installed(vista) and ive just tryed oc my q6600 go at 3ghz it boot but i cant finish my 3dmark and occt failed after 2mins so iver puted my voltage higuer(1.35)it was a 1.20 on auto and puted my 4gb g.skill 8000 at 1000mhz whit 2.1v and i still cant get it stable..... any advisse? by the way all other voltage are on auto and i changed nothing. cpu idle at 30 full load 67 and my nb at 50 is that normal?

Thanks sorry for my english im french

Well... what exactly are all your other settings? What's disabled and what's enabled.

At 3ghz you should be able to run everything at auto or stock. Are you using stock HSF? It seems that your cpu temps are a bit high for that overclock... well a bit high for an aftermarket cooler. I would get a new cooler before I delve into any more overclocking if I were you.

Also run memtest to make sure it's not your memory causing the failed overclock or benchmark.

[Leeghoofd]

How high are your guys's an girl's clocks going on Quads with the 9x multiplier?
Im stuck at 4.1 bench an 4.2 windows, nothing more no matter what. 3 of my Q6600's all stop there.

Prolly more CPU/Mobo limited there mate, many quads stop at 470ish FSB... same with my 2 Qx CPU's... luckily I can change the multiplier on those... and 4.1Ghz benchable on a Q6600 is prety nice unless you use extreme cooling...

[johnp1983]

run QDR 1600 and ram at 800 or 1066Mhz, might need a small increase in chipset voltages for the Nb and a bit more Vcore for the CPU , estimating around 1.2Vcore if you got a nice CPU

Just adjust CPU Vcore , FSB QDR and Ram speed and voltage, leave rest on auto for the voltages, should work out of the box...

There's no need to mess with HT, or follow this guys stuff, covers it all ::

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

I've reached 400x9 with those settings:

Generics
Multi 9x
SPP < --> MCP ref clock AUTO (200Mhz)
nForce SPP --> nForce MCP 5x
nForce SPP <-- nForce MCP 5x
CPU\HT\PCI-e\SATA spectrum DISABLED

Cpu
FSB memory UNLINKED
FSB qdr 1600Mhz
Memory 1066Mhz

Timings
CAS 4
TRCD 4
TRP 4
TRAS 9
TRRD 4
TRC 30
TWR AUTO
TWTR AUTO
TREF AUTO

Voltages
CPU v-core 1.29
CPU FSB 1.30
MEMORY 2.2
SPP 1.4
MCP 1.5
HT nForce SPP < -- > MCP 1.25
GTLVREF0 AUTO
GTLVREF1 +50mv
GTLVREF2 AUTO
GTLVREF3 AUTO

And I'm fully stable under orhos blend priority 9

Very satisfied by this board... now I'm waiting to put a second 8800gts g92 to test SLI configuration.

[Leeghoofd]

Good one mate, just keep a sharp eye on them temps... maybe try with a bit lower Vcore... I know the board droops a lot but my friends E8400 does 3.6ghz at 1.16 volts and 4ghz on 1.26v

[johnp1983]

Unfortunately my E8400 isn't a lucky one...

If i get lower with v-core I get bsod when running orthos blend.

I might trying to go down with other voltages to see how the system react.

Stay tuned.

[op1e]

Here is my score the cards are clocked at 700/1000 linked
http://service.futuremark.com/compare?3dm06=5375816 Edit... Sorry just seen you have GTS my bad.

How high are your guys's an girl's clocks going on Quads with the 9x multiplier?
Im stuck at 4.1 bench an 4.2 windows, nothing more no matter what. 3 of my Q6600's all stop there. My E8400 Benches 4.75 an only does Windows at 4.8.. So can anyone do higher with the 9 multipler with them Q's. Cause I want to know if its me or if thats the max for quads on the Nvidia chipset without going QX.

Nvidia an Intel are throwing blows an its coming out of SLI'ers pockets
Edit...Last comment was uncalled for... Deleted...

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.

[Starage]

What do you think you will gain in real time performance ? if you do benchmarks yes then you will notice an improvement in scores going from 1000 to 1200mhz ram... daily basis hardly worthwhile mate... have you tried if ya ballistix don't run 1200mhz 5-5-5-18 at 2.35 volts ? Test them and see if it is noticeable to you ... Hardly think so, but this is still Extremesystems isn't it...

I just not sure if about running my ram over 2.2volts.
I am sure I could get 1200 5-5-5-15 with 2.35votls, but how long would it last at that voltage?

[varrius]

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

[Leeghoofd]

I just not sure if about running my ram over 2.2volts.
I am sure I could get 1200 5-5-5-15 with 2.35volts, but how long would it last at that voltage?

that's one of the reasons I replied to your post... You will see some gain surely in benchmarks and co but not very noticeable on day to day basis... I hardly notice the difference between 400mhz or 1066Mhz on the ram... if ya want to keep these rams keep them at 1000mhz 5-5-5-15 at normal volts... 1200mhz for fun and benches...

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 didn't alter those settings with the QX9650 and it ran fine at 450FSB with 10 multi... try first without and if it is unstable you can alter it...

[Starage]

Ya. I find that my ram runs 4 3 3 7 with 2.2volts at 1000mhz.
I will leave it that. there is no really gain for 1200mhz.
Thanks

Well I have 1100mhz running at 5-4-4-15 with 2.2volts, no errors. 1140mhz seems to be max for these sticks, more voltage does not help.
So really that is good enough. Sure would be nice to see dd3 price down below $200.00.
This ram will have to do until then.

[skid9uk]

my mate did this to his xfx780i.....
He noticed his raptors in raid were slower on the xfx780i than his intel chipset as with the 780i drivers you cant enable/disable the write catch so he put the 680 drivers on from there website so see what happens. The 680 drivers allow you to enable/disable the write catch which made his raptors a lot faster. He has had no problems with it yet, although i told him the 3rd pci-e probley wont work but he isn't putting a 3rd card in anyway. I might give i a go over the weekend as ive benched my raptors in raid and there also slower

Thanks,

Chris.