Asus P8Z77-V + GeForce GTX 670 = no video?

silliest

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Jun 16, 2013
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This is my first build since 1998, and (I've been using Macs in the interim.)
So, I'm not *entirely* unfamiliar with the process, but I clearly don't know
as much as I thought I did, and I'm *way* out of practice and often out of date.


My full system list is here:
http://pcpartpicker.com/user/silliest/saved/1LZ1

But I think the relevant part is this bit:
MoBo - Asus P8Z77-V
(just a V, nothing else)
Video - Asus GeForce GTX 670

And the problem is that I have no video signal getting to my monitor.

I apologize for the length of this post, but I've tried a LOT!
I'm so frustrated right now, I need to write it out just to make sense of it in my own head, and try to figure out what I may have missed.



I initially installed everything BUT the video card, got my bios, OS and drivers all up to date. Everything worked FINE.
I had a VGA connector on the monitor.

I powered down to install the graphics card, and hook up my second monitor with SLI cables on both screens.

When I powered back up, my monitor woke up long enough to tell me it was in "power saving mode" and that's all I got out of it.

I had *not* disabled onboard drivers before installing the card (a more experienced helper told me it wasn't important, and not to bother), so I don't know if that's what went wrong or not.

I have tried the following troubleshooting ideas, while making sure to power-down from the PSU and re-starting every time. I wear a grounding strap whenever I go near it, so I don't *think* I just zapped anything.

1. Disconnected second monitor
2. Tried single monitor in both SLI slots on the graphics card.
3. Moved SLI cable from graphics card to motherboard.
4. Switched to VGA cable on motherboard. (which is the configuration that had worked before the graphics card install)

I still have no video signal.

**Edited to add a bit I left out the first time:
I took the graphics card OUT of the system entirely, and *then* continued on with the following.

The monitor will tell me SLI-I, SLI-D, or VGA, depending on which port it's plugged into, so it's getting *some* info but not actual signal. I also get the ever-present "power saving mode" and then it goes black again.

With the originally-functional VGA-to-motherboard connection in place, I have also tried the following, with full power-down between attempts
(I was assuming that plugging in the graphics card without disabling the onboard video had scrambled the bios, but I'm basically a noob, so I don't really know if that was a reasonable assumption or not.)

1. bios flash button on MoBo
2. reseating cmos battery
3. tap ctrl key during bootup
4. hold insert key during bootup
5. re-check and re-seat all internal connections and re-boot one more time just for the heck of it.

I still get the same thing on my monitor.



I'll bet a donut that it's something REALLY simple and obvious, because I'm in that state of mind where I know I'm prone to missing the obvious.

"Obvious" things I have verified:
1. I know the power is plugged in because my fans go and light up and the LED's on the MoBo do, too.
2. I know the monitor is plugged in because it knows not only what cable is in *it's* case, it knows what port that cable is in on the computer.

Beyond that, I'm kinda lost, though.

So - what now?
 
Hi, Are both PCie power cables (6+2 pin) connected to the graphics card?
Is the card inserted in the slot closest to the CPU?
If removing the graphics card from the PCIe slot, and using the VGA on motherboard, does it POST?
What power supply using?
 
I would first remove the video card and try just VGA by it self. It looks like you only tried it WITH the video card in.

If that works, reinstall the video card(power supply OFF and hit the power button to discharge any power) and make sure the 2 power cables for the card(2 x 6 pin PCI-E) are fully inserted as it will LOOK like it is running even if it does not have power.

If you are using VGA, make sure you are on the lower DVI port with the adapter as the top one does NOT allow analog video at all.

Worse case, you may be able to set the onboard as the primary(bios option) and then boot to Windows with the dedicated card installed to at least see if it gets detected.
 

silliest

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Jun 16, 2013
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10,510


Pretty sure the power cables were well-seated before I removed it, and yes, it was in the closest slot to the CPU. But I suppose I can try RE-installing it and checking that, because that's the kind of thing that ends up tripping me up.

My power supply is... not accurately listed in my parts-list, actually, I need to fix that.
It's a Corsair TX850 - the 650 ended up in another machine.

I'm... actually not sure if it's POSTing. The darned thing is so quiet when it's running, I'm not entirely sure what it's supposed to DO, and I wasn't paying attention to the noises it made *before* it "broke".
:-/
I'll check into what I'm supposed to be hearing/seeing and update with more info later.

Thanks!
 

silliest

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Jun 16, 2013
6
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10,510


I'm kind of scattered, and must have been unclear:

It worked with VGA-to-motherboard before I installed the graphics card.
It did not work with the graphics card in the case.

I did take the graphics card out completely, and I moved the monitor back to the previously functional VGA-to-motherboard setup and it's still not working.

Sorry for the confusion.

I can't tweak anything via software because I can't see what I'm doing at this point ;-p
All I can do is try to re-set things physically, at least as far as I know.

"Worse case, you may be able to set the onboard as the primary(bios option)"
I *thought* that's what I was trying to do with the bios-flash-button/cmos-battery and various keytaps and hold-downs during boot-up, but I got no results.

Is there another way to revert the bios to default when you can't see anything on your screen?

 

silliest

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Jun 16, 2013
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The monitor is currently plugged into the motherboard with no graphics card in the case, so if that's what you mean, then yes, I've tried it and I get no video.

If you mean something else (I've been at this a while, and I'm fuzzy) please try to dumb it down and over-explain it for me :)

 

silliest

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Jun 16, 2013
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OK, looks like I figured it out - and it WAS something stupid.

One (or both) of the memory cards was not completely seated.
(headdesk).

It's fine now! Drivers all installed and everything just peachy. Graphics-wise, at least.

Of course, my onboard wifi is still not working (I don't think I care, ultimately - once I get it all in the case, it's moving to my workstation, where I don't have to have a 100 yard cable to plug it in anymore ;-p But it bugx me that I can't figure that one out yet either.)

And now Windows doesn't like my product key and keeps refusing further updates, and telling me I'm not using GENUINE Windows. But I'm sure that will get sorted as soon as I've had enough coffee to deal with a phone call.

And then I have to get all my iMac-data onto my spare drive and get that installed and checked out.

And the I have to scrub the iMac and do a clean install so I can turn it over to my kid.

And THEN I can finally get back to gaming ;->

Thanks all, for the help.

 

silliest

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Jun 16, 2013
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10,510


Ahh! Thank you. Good call!