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 LATEST TOPICS |  FORUMS » VIDEO CARDS » SWITCHING BETWEEN ONBOARD AND DEDICATED ...
Subject: Switching between onboard and dedicated video card
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Geaser Dec 23, 2012 02:26 PM Reply | Bookmark
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Hi,
I am in process of buying new HW.
I wonder if this is going to work:
Let's say I have ASUS GTX 680 on Motherboard ASUS P8Z77-M PRO.
Now I want to connect GTX 680 using HDMI cable and Onboard VGA using DVI cable to the same monitor.

The reason for that is that I hate noise.
1. When in 2D apps I am gonna use Onboard VGA along with no turning fan on GTX 680.
2. When gaming I am gonna use GTX 680 with all fans around the case blowing (don't hear them then:))

My question is:

Is it possible via BIOS or different way to totally disable GTX 680 so it is dead silent with no fans running on it while it is installed and fully connected to MB?

What I am trying to do is to make office and gaming rig in one case.
Thx.

Topic URL: http://forums.ncix.com/forums/topic.php?id=2579441

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Spork™ Dec 23, 2012 02:30 PM Reply | Bookmark
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No point in doing that. in 2D the GPU fan will be lowered, use lower speeds and less heat.
With GPU fan at 30%, no chance you will ever heard inside a case with fans around.
You can use MSI Afterburner to set fan curves.

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Geaser Dec 23, 2012 02:33 PM Reply | Bookmark
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While in 2D my rig is fanlessso I am very well hearing GPU. I've got (really quiet) Gigabyte GTX 560Ti now and even it's on 1680 RPM on idle it makes a lot of noise. I am asking this question because I don't know what the new MBs are capable off.
Thx.

This message was modified by the poster at 12 23, 2012 02:44 PM

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Lance W Dec 23, 2012 02:57 PM Reply | Bookmark
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No, it's not possible. Get an aftermarket cooler for your GPU.

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Spork™ Dec 23, 2012 03:54 PM Reply | Bookmark
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So you have no fans in your case? The fan speeds up based on temps.
So if the inside is hotter, the fans will need to speed up, regardless in 2D or 3D.

Geaser please list you system specs and which models you are using.
Also the case you use can dampen sound, if you get the correct ones. With adding silent fans to help airflow, you will barely hear anything.

I have 5x 140mm + 5x 120mm fans in my case. Can not hear my system when fans are set to 30%.
So how you build it it, will be a big factor.

This message was modified by the poster at 12 23, 2012 04:02 PM

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Clucker Dec 23, 2012 04:24 PM Reply | Bookmark
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I got a asus gtx 670 directcu ii and I can barely hear the thing, if at all, while not gaming. My case fans make more sound. Even on 99% load, I don't really hear the fans. I can say choosing the model and brand of your graphics card makes a huge difference.

I use to have a gtx 560 ti too. It was factory super overclocked and it sounded like a jet engine and made so much heat that it warmed my room.

Also, I've tried an HD 7970 with a reference cooler and that thing was noisy too. So my conclusion and advice to you is to find a good brand that is known for its noise factors.

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AEO Dec 23, 2012 04:57 PM Reply | Bookmark
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I would definitely recommend getting this version of GTX 680...
triple slot, but extremely beefy cooler that is also quiet.

If you find it loud at idle, I find it difficult to believe that, then you can also use MSI afterburner to fine tune the fan speed.

The alternatives, like Twin Frozr and PCS+ are good too, but the triple slot solution is definitely better for top end cards.

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Spector Dec 23, 2012 05:17 PM Reply | Bookmark
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This is the problem I had with my 7970 as well...worked fine, but was way to loud for my liking.

I always like the twin Frozen cooler graphic cards from MSI so I waited a bit and when the 4GB 680 version of it came out I got that. So much quieter.

Still have the 7970 sitting on a cupboard after about a year.

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Geaser Dec 24, 2012 05:15 AM Reply | Bookmark
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My question was:

Is it possible via BIOS or different way to totally disable GTX 680 so it is dead silent with no fans running on it while it is installed and fully connected to MB?

Maybe it is not clear enough.

Is it possible in new motherboards like ASUS P8Z77-M PRO to disable dedicated video card like GTX 680 and use only onboard one.

So the status will be:
I click in BIOS f.ex. disable PCI-E slot and what happens is:

GTX 680 is physically installed on PCI-E slot connected with power and data cable plugged-in and system doesn't see it at all. The video card is dead.

Then I use only onboard Video Card f.ex. to browse internet instead.

Then I click in BIOS Enable PCI-E and boom - the GTX 680 in back on truck to grind all the games :)

Any knowledge in this matter guys?

Please forget all the tweekin' fans etc.

Thx.

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Geaser Dec 24, 2012 05:32 AM Reply | Bookmark
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CPU - i7 3770K
Cooler - IcePipe
RAM - Crucial DDR3 Ballistix Tactical 32GB KIT
MB -...... depends on your answers... the best one with appropriate feature
GPU - 2x std GTX 680 with dual fans depending on MB, prob'ly ASUS w/o OC
Storage - 2x SSD (120GB in RAID 0)+ NAS 4TB
PSU - Corsair AX 1200W
Case - no case - comp properly fixed to a desk wall
Fans - Noctuas 3x140 and 3x120 mm hooked to a fan controler placed in a strategic positions with custom made ducts directing airflow where its needed.

So when not gaming the rig is totally silent guys.
Fans are off or like 200 RPMs (silence anyway), PSU fan is off. The only noise is GPU fans !!!

I think I have to go for a switch put on the power cables betwen PSU and GPUs and I am done then. Thought I could do it with a click in BIOS.

Thx.

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I Got 6 Strings Dec 24, 2012 06:05 AM Reply | Bookmark
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You can control the gpu fan with speedfan but like others suggested why not get an aftermarket cooler? There are plenty of quiet ones out there or you could do as I did and get the Arctic Cooling Accelero S1 Plus cooler and attach a couple of silent fans to it and control them with a fan controller.

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Spork™ Dec 24, 2012 09:08 AM Reply | Bookmark
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2x GTX 680 and that wont work on a P8Z77-M PRO no room for any aftermarket cooling.
When you have 2x video cards that close temps will be much higher as no room to breath.

To switch to onboard, the fans will still spin on the the GTX680 as power is still going to them.
So it is useless to do that.

Why not just get a silent case like the Corsair 550D.

After reading your post, do you have the parts or are you building one?

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Matt_G Dec 24, 2012 10:32 AM Reply | Bookmark
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I believe my motherboard can do what the op wants since there are even buttons to disable pci lanes on it (z77 evga).

Not sure why people would recommend corsair for a silent case (other than blind fanboyism). A better silent case would be fractal designs which are built around that.

Having two bios' to switch in between sounds like a hassle though. I would use better fans with a controller instead.

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Clucker Dec 24, 2012 10:46 AM Reply | Bookmark
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i have an asus z68 pro motherboard and it has this feature called Lucid Virtu . maybe that is what you want. it uses the onboard cpu graphics (hd 3000) from my 2500k cpu when doing tasks that the onboard can handle. it was a slight pain in the bios to setup for a noob like me. i got it to work but i did not care much for it and uninstalled it. u seem to want this feature.

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Geaser Apr 02, 2013 02:18 PM Reply | Bookmark
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Hi guys,
Here it is what I've done.
Bought ASUS P8Z77 V PRO with that brilliant fanXpert2
I have got two separate fanless PSUs 460 SilverPower
1st powers only GPU and HDD
2nd powers MoBo and 2 SDDs
All my case fans are being steered by FanXpert2 .Works just perfect for me: no heat no spin. I've got 3x 120 Noctuas of diff speeds + 1x 140 Noctua + 120 Noctua sitting on my CPU CoolerMaster 212 EVO.
2D mode:
I power on my PC with just one PSU on and I chose OFFICE system SSD no1 with fanXpert custom mode - Office - no fans are spinning
My GPU is pluged into the slot by has no power delivered once my GPU/HDD dedicated 2nd PSU is simply off by a custom made switch button on my desk. Temps: CPU 37, MB 31
The rest is powered by 1st PSU and it's totally silent. No moving parts - nothing
3D mode:
When I play games I simply switch on my PC with second PSU on too and chose a GAME system from SSD no2 with fanXpert mode GAME - fans are blowing accordingly where they should. My GPU and HDD are on. I got like a proper rig to play and I do not give a *****about the noise since I do not hear it much through all the gaming sounds.

It was the only way to achieve what I really wanted in the first place.
Hope this solution helps a bit and cast  a picture for a silence-freaks like me.

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d2frm Apr 02, 2013 03:57 PM Reply | Bookmark
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Too much work.

Optimus is Nvidia's GPU switching feature and is primarily used on laptops, where you have both power and heat limitations in place. It's useless on desktops, where you simply don't have such restrictions as 18mm chassis height and 45Wh batteries.

Lucid Virtu is a third-party software solution to use both the iGPU and dGPU, and it sorta works. Better to not use any and run the dGPU as default.

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