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

JAS i don't think we're talking about the same board. EVGA just announced the 780i FTW. There is a combo water block/air cool heat sink on the NB. Look at the pictures for the 780i FTW closely, you'll see the barbs they are partially hidden. Its also described in the press release for the 780i FTW.

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Originally Posted by jas420221

Theres no waterblock on the SB....Did I miss what you meant?

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As far as i can see theres a connection (maybe a heatpipe underneath the cover ? ) from southbridge heatsink to northbridge heatsink/waterblock.
So yes, you missed what i ment ;)

Mjello Folks.

I have a question about the BIOS in evga/XFX 780i, can i do a BIOS update whit a Thumbdrive?

thx.

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Originally Posted by dMITIj

Mjello Folks.

I have a question about the BIOS in evga/XFX 780i, can i do a BIOS update whit a Thumbdrive?

thx.

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nope

I can't seem to update my bios. I think I am following the instructions to the T. It keeps booting B1 bios.

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Originally Posted by Justifire

As far as i can see theres a connection (maybe a heatpipe underneath the cover ? ) from southbridge heatsink to northbridge heatsink/waterblock.
So yes, you missed what i ment ;)

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I have the board (not the FTW). It has the same heatsink sans the watercooled NB. There is no watercooling on the SB period. No water comes close to the SB (from what I can see). Its just a heatsink. They are connected, but by no means would I call it watercooled, directly or indirectly.

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Originally Posted by seamumc

JAS i don't think we're talking about the same board. EVGA just announced the 780i FTW. There is a combo water block/air cool heat sink on the NB. Look at the pictures for the 780i FTW closely, you'll see the barbs they are partially hidden. Its also described in the press release for the 780i FTW.

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Yes we are, I even referenced the difference.. And we are talking about the SOUTHBRIDGE that does not appear to be w/c, not the NORTHBRIDGE that has the watercooling.

See above.

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Originally Posted by FuriousSalesman

I can't seem to update my bios. I think I am following the instructions to the T. It keeps booting B1 bios.

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By chance are you using the alternate Windows method as in this link?

http://www.evga.com/forums/tm.asp?m=204596

I personally would only use the Floppy method.

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Originally Posted by msgclb

By chance are you using the alternate Windows method as in this link?

http://www.evga.com/forums/tm.asp?m=204596

I personally would only use the Floppy method.

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I have tried using a cd and the alernate method.

Both say that they are working and have correctly flashed but when I turn of my psu and then restart and load defaults nothing changes.

I was trying to avoid using a floppy, but I have a spare. I will see if that works.

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Originally Posted by jas420221

I have the board (not the FTW). It has the same heatsink sans the watercooled NB. There is no watercooling on the SB period. No water comes close to the SB (from what I can see). Its just a heatsink. They are connected, but by no means would I call it watercooled, directly or indirectly.
.

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Heat will always flow to the coldest point.
With the NB being watercooled it should have some impact on the heat of the SB
That is, when the heatpipe between them works as it should be.

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Originally Posted by joe.denice

yeah I have notice the spike in heat with 2 of the video cards, I am going to play around with my setup tonight to see if I want to keep the 3rd video card or not.

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And....happy with your 3rd card?

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Originally Posted by Justifire

Heat will always flow to the coldest point.
With the NB being watercooled it should have some impact on the heat of the SB
That is, when the heatpipe between them works as it should be.

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I'm with Justifire, that southbridge heatsink should behave the same as a heatpipe and transfer the heat to the northbridge cooling mechanism. This goes for both boards.

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Originally Posted by dMITIj

Mjello Folks.

I have a question about the BIOS in evga/XFX 780i, can i do a BIOS update whit a Thumbdrive?

thx.

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yes you can!

USB FLASH PROCEDURES:...if you want to use an USB thumbdrive for booting and flash process, you will need to download this HP TOOL

on that link page, you will also see a link to download the windows 98 booting files that the HP TOOL will want in order to prepare your USB drive as a bootable device/drive.

HP TOOL - http://files.extremeoverclocking.com/file.php?f=197

Just received a QX9650 for my 780i board....Here are the initial results...still lots of tweaking to do....hopefully I can get to 4.5Ghz....nice chip so far:clap:

Temps seem ok...

-M

http://aycu15.webshots.com/image/398...3037324_rs.jpg

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Originally Posted by managerman

Just received a QX9650 for my 780i board....Here are the initial results...still lots of tweaking to do....hopefully I can get to 4.5Ghz....nice chip so far:clap:

Temps seem ok...

-M

http://aycu15.webshots.com/image/398...3037324_rs.jpg

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nice ;) can you show a pic of your case ? (if you have one)

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Originally Posted by Trooper_GR

nice ;) can you show a pic of your case ? (if you have one)

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Yup...I will take a current shot of the case tonight...after tweaking some more!!

Here is a shot of it before the 780i.....and the changeout to a 3x120 rad for CPU..taken when I installed the 8800GTX's last year!!

http://i139.photobucket.com/albums/q...an/mozart4.jpg


Here's another...

http://i139.photobucket.com/albums/q...an/mozart1.jpg


Lit up!

http://i139.photobucket.com/albums/q...an/mozart2.jpg

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Originally Posted by Justifire

Heat will always flow to the coldest point.
With the NB being watercooled it should have some impact on the heat of the SB
That is, when the heatpipe between them works as it should be.

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Originally Posted by seamumc

I'm with Justifire, that southbridge heatsink should behave the same as a heatpipe and transfer the heat to the northbridge cooling mechanism. This goes for both boards.

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Someone please correct me if I am wrong but this is pretty basic thermodynamics guys...

Just b/c that NB is cooled by water has nothing to do with the SB. Sure its connected, sure the heat naturally 'rises' to the NB through that attached metal heatsink. But that doesnt make the SB watercooled. Nor would it be cooler b/c something down the line is watercooled. The SB is cooled by air, period. its uses the entire heatsink to help dissapate the heat, but the w/c NB has nothing to do with teh SB temps. The NB w/c does not pull more heat away from teh SB.

I don't agree.
Say you're in a ice hall with ambient temp 5`c and ice temp -15`c
If i take a pipe and put one end in the ice.
Than i ask you to lick on the other end of the pipe.
Would you do it with your formulation or think again about my formulation ?
I bet you keep your tongue inside, altough the air is 5`c
If the pipe makes good contact with the waterblock it sure wil transfer the heat to the much cooler waterblock.

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Originally Posted by Justifire

If the pipe makes good contact with the waterblock it sure wil transfer the heat to the much cooler waterblock.

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Nobody is arguing that it transfers heat. It will transfer heat without the waterblock. I just dont think it will transfer heat any faster....Its connected to the block with a 2mm(h) x 1inch(L) (sorry about the mixed numbers) piece of metal. Where as the entire heatsink length is cooled by the air. I do not believe there is a heatpipe underneath either. The contact area from that SB heatsink to the NB waterblock is so small, it doesnt matter much if at all to teh SB. You think if it worked as you say that would be mentioned on the box. It says NB watercooler, not NBand SB. ;)

We will agree to disagree I suppose. :up:

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Originally Posted by jas420221

Nobody is arguing that it transfers heat. It will transfer heat without the waterblock. I just dont think it will transfer heat any faster....Its connected to the block with a 2mm(h) x 1inch(L) (sorry about the mixed numbers) piece of metal. Where as the entire heatsink length is cooled by the air. I do not believe there is a heatpipe underneath either. The contact area from that SB heatsink to the NB waterblock is so small, it doesnt matter much if at all to teh SB. You think if it worked as you say that would be mentioned on the box. It says NB watercooler, not NBand SB. ;)

We will agree to disagree I suppose. :up:

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Hehe :D
Well if theres no heatpipe underneath the plate there wont indeed be a big decrease in heat.
Altough I must say that it will always be cooler/better than air-cooling only.
Metal also distributes heat, far less than a good copper heatpipe, but it does.
Maybe its just 1-2`c difference but hey, cooler is better ;)
Think that its time for some good oc-tests dont you agree?

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Originally Posted by Justifire

Hehe :D
Well if theres no heatpipe underneath the plate there wont indeed be a big decrease in heat.
Altough I must say that it will always be cooler/better than air-cooling only.
Metal also distributes heat, far less than a good copper heatpipe, but it does.
Maybe its just 1-2`c difference but hey, cooler is better ;)
Think that its time for some good oc-tests dont you agree?

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I must say I still disagree. Having taking classes on this crap in college, I wish I could use the big words to prove my point.....(example convection on a said substance does not improve when one end of it is colder). :ROTF: :rofl:

I think its time for some testing absolutely. :clap:

Jas, your making the assumption that the main contribution of removing the heat from the SB is convection from the small area above the SB. You are incorrect.

For starters, there are TWO race track shaped heat pipes on the underside connecting the NB to the SB. Even if there wasn't, the greater contribution would be conduction from the SB to the NB.

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Originally Posted by RottenMutt

Jas, your making the assumption that the main contribution of removing the heat from the SB is convection from the small area above the SB. You are incorrect.

For starters, there are TWO race track shaped heat pipes on the underside connecting the NB to the SB. Even if there wasn't, the greater contribution would be conduction from the SB to the NB.

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Conduction, convention....potato, potatoe. ;)

j/k.

I see I have my terms mixed up. My apologies to all in this conversation. With that being said, I still dont understand how the w/c would cool the SB at all. Im betting the difference in temps is no more than negligable...

Does that mean I win ? :up: :rofl: :ROTF:

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Originally Posted by Justifire

Does that mean I win ? :up: :rofl: :ROTF:

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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!!!!

:p: :clap: :ROTF: :rofl:

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Originally Posted by jas420221

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!!!!

:p: :clap: :ROTF: :rofl:

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Humor always make me feel better :lol2: :lol: :poke: :hump:
Now it's time to get back on-topic i guess.
Seems like the Asus Striker II Extreme will be much like this FTW board.