• Welcome to Overclockers Forums! Join us to reply in threads, receive reduced ads, and to customize your site experience!

SOLVED Computer won't boot with 7950 installed

Overclockers is supported by our readers. When you click a link to make a purchase, we may earn a commission. Learn More.

Suitecake

Registered
Joined
Jan 28, 2012
...but it will when it's not installed.

This is a new build. I've currently got the card removed, and am installing Windows 7. Once I get that all settled, I'm going to be trying it again. Any idea why this might be happening, though?

To be more specific, the LEDs on my mobo (Asus P8Z68-V PRO) check out, and the BOOT_DEVICE_LED ticks for 15 seconds and then zips away (just as when it boots properly), but nothing shows up on the monitor. It's very, very weird.

The maker is Sapphire, if that's relevant.
 
You might have the primary graphic adapter set to iGPU in the bios. Try pluging your monitor to the "HDMI out" on the mobo.
Get in the bios, change the primary graphic adapter setting to pcie and you should be good to go.
 
Is an HDMI cable required to do that? I don't currently have one.
 
Yes, or a HDMI to DVI adapter.
With a bit of luck there is one provided with your MoBo.
 
Just checked the BIOS; the on-boot GPU setting (which I guess maps to your 'primary graphic adapter') is set to PCIE.

Just installed Windows 7 fine, but as soon as I shut it down and put the graphics card back in, it again won't display anything on the monitor.

Does this have something to do with the whole VGA/DVI thing? I'm currently running DVI.
 
Rofl. Ok. I'm a newb.

I didn't realize graphics cards have their own dedicated DVI port. Plugged it in there, booted up perfectly.

Thanks!
 
Some boards doesnt even have a primary port for video out because they are tuned to be used with graphic cards in mind. So they are tweaked which means to remove unnecessary parts, resulting in cheaper and smaller builds with higher efficiency.
 
How does a motherboard with no onboard graphics ports run more efficiently? Also, boards that have the onboard video ports vs those that dont are the exact same size. the form factor does not change due to graphics options.

Can you explain a bit more clearly what you mean Ivy?
 
Im not actually sure it makes real difference (noticeable in any way) just for that one port and its backbone.

However, i was generally talking about tweaking here and why its done. I wanted to mention that some boards (rather few but it does exist) doesnt even have onboard video. In order to understand bit more of that kind of materia and that those 2 stuff is totaly separated and doesnt work at one hand.

Regarding that matter about the boards without onboard video and why its done. I dont think it would matter on a huge board because they are that chunky that you can barely safe up space and ressources at all (by only that single tweak). However, for some SFF boards where every single space and every single connection slot counts, because its simply increasing size and used ressources. Even if only extremely marginally, it may be of interest to simply completly remove onboard. Its still saved up slot-space (which can be used for 2 USB slots for example) and the board still will get a little bit smaller (a few mm but it does count). As i said its of no interest on huge boards but on SFF where they try to fit as many stuff as possible into as little space as possible, it does count. A onboard is simply something you dont need, and still taking slot space at least, maybe even some other ressources. Tweaking means to remove everything you dont need.

It doesnt necessarely mean that a CPU cant use its integrated GPU but it wont work without a port from a card. Nowadays the stuff is easyer because some years ago the desktop boards was always in need of a dedicated onboard GPU solution, which is nowadays not needed anymore (unless its a X-type or AMD CPU), but still taking unnecessary ressources.
 
Last edited:
Ok... gotcha... mostly.

Board sizes do not change with the addition or removal of those features... any features really. There are standard sizes like ATX, mATX, eATX, ITX etc. Those sizes do not change with feature sets as they adhere to those standards. Though space on the I/O area is saved, that is correct.

Actually, if there are no ports, it DOES mean that you cannot use the onboard exclusively. There is technology on some boards that allow you to leverage some of its horsepower however (unless that is what you meant).
 
There is many "standarts" and some of those designs might even be proprietary because its sometimes only used by a single manufacturer, however, if you can protect a design im not sure (why not, you can protect as good as everything). Finally, the PCB size can be adjusted to own needs, aswell all the parts on the board can be adjusted to own needs. So there is the possibility to create a own design and to save up space by getting ride of unnecessary space, why not?

Why should there only be type A, B, C or D? A PCB and its parts can be adjusted to a given device... and then it can be unique from all the others. Ofc the device will usualy be mass produced (else its not affordable) but its still used for only a single type of device at times.

Space isnt only saved, it can be used for something different instead.
 
Last edited:
None of what I listed are proprietary. Some mobo makers dont make ITX for example, or eATX, but the standards are used and followed by all, unless you get in to the server segment which still has standardized sizes.

I agree in that if you remove features you should be able to 'shrink' a board, but, again, there are standards to follow, and they are there for a reason. If board MFG went off on their own outside of these standards, then a motherboard wouldnt fit in a case without modding or the case MFG making more holes for mounting proprietary sizes. That isnt good for business and again, that is why their are standards to follow.
 
Those standarts are here for those who are creating boards in order to fit into a certain case, but not everyone is creating boards able to fit a standart case, only a single one.

Even, we may have a "standart" size but we can still remove some parts and add other parts... at the same size.
 
Those standards (with a "D", not t) are here so motherboards will fit inside any appropriately sized case.

Not sure what the second sentence means.

Forget it...I just dont think I understand what you are trying to say for whatever reason. :)
 
Back