Help! I moved my alienware x51 to a new case wit a new psu and the gpu is not working!!

N1cholas · Oct 2, 2014

I moved the components of my x51 to a new case with a larger psu and when I plug my screen into the graphics card nothing happens! The gpu is plugged in as the fan still spins. It only works if I plug my screen into my motherboard.

Darkbreeze · Oct 3, 2014

Have you tried going into the BIOS and setting the primary graphics display to PCIe or PEG, depending on what they call it in your BIOS? Perhaps for some reason your BIOS was reset to default settings after being moved and the onboard or iGPU is configured as the primary display.

Darkbreeze · Oct 3, 2014

Also, make sure you plugged the power cable to your GPU back in if it has a socket for one on the card. This often gets overlooked by folks used to using cards powered by the motherboard only.

N1cholas · Oct 3, 2014

Darkbreeze :

My screen is currently connected to my motherboard as the gpu will not boot. I thing this is why pice or peg are not visable as options. Am I doing it wrong?

Darkbreeze · Oct 3, 2014

What is the model of the motherboard? You might be viewing the EZ mode or whatever equivalent your BIOS has rather than advanced settings. You would need to be in the advanced settings to see the option. If you can give me the motherboard model I'll check it out for you. Might try resetting the BIOS to default settings then save settings and shut down. Change to card output (Meaning connect the monitor to the GPU card) and reboot.

N1cholas · Oct 3, 2014

Darkbreeze :

The motherboard si a dell alienware r1 oem mini itx motherboard witth a Intel® H61 Express Chipset. it has a custom alienware bios i think

tiny voices · Oct 3, 2014

You must connect the monitor to the GPU, NOT the motherboard.

Darkbreeze · Oct 3, 2014

That's what he did at first and got no signal.

tiny voices · Oct 3, 2014

We need some more specs. What PSU did you change to, and is the GPU power cable(s) connected?

N1cholas · Oct 3, 2014

tiny voices :

I have a corsair cx500 (i had no choice at the time as it was the only psu available. i have head it is not that good but it should still allow my gpu to work) it should be sufficient as my gtx 555 cam from a 330w psu. Yes i have connect my gpu to the psu though a 6 pin PCI-e cable

Darkbreeze · Oct 3, 2014

ftp://ftp.dell.com/Manuals/all-products/esuprt_desktop/esuprt_alienware_dsk/alienware-x51-r2_Owner's%20Manual_en-us.pdf

Turn On computer

Press F2 (System Setup) and allocate "Advanced — Integrated Devices"

--> PCIE Gen3 Allows you to enable or disable PCIE Gen3 capability.

& Disable!!!

Good luck!

N1cholas · Oct 3, 2014

Darkbreeze :

When I go to primary display i only get two options : igfx and discrete. It is currently on igfx. Should I change it to the discrete mode?

Darkbreeze · Oct 3, 2014

N1cholas · Oct 3, 2014

Darkbreeze :

It still cannot detect my gpu

N1cholas · Oct 3, 2014

Is there a chance my gpu is broken?

Darkbreeze · Oct 3, 2014

Well, you did change the monitor connection over to the GPU after making the change, right? If so, then yeah, it's a distinct possibility.

tiny voices · Oct 3, 2014

I seriously doubt the GPU is broken.

You didn't change ANYTHING besides the PSU and case right?

Darkbreeze · Oct 3, 2014

I doubt it too, but you know the old saying, when all other possibilities have been exhausted, what remains must be the cause, nomatter how unlikely.

That being said, I'd probably say to start over, make sure the card is completely seated. Even remove and reseat it. Make certain the connector you've got plugged into the GPU is the correct connector and is entirely plugged in. Make sure you saved the discrete GPU settings in the BIOS and that they are still set to that. Might want to test the PCIe power cable and make sure it's getting juice to the card.

https://www.youtube.com/watch?v=ac7YMUcMjbw

tiny voices · Oct 3, 2014

We really haven't exhausted anything yet.

I agree that he should completely take everything apart and start over. Generally on motherboards like this, you do not need to change ANY settings with the onboard GPU and that can even cause issues. The motherboard was working with the GPU before so NOTHING should be changed.

Have a look through this thread. It helps.

Darkbreeze · Oct 3, 2014

I understand that, but we don't really know what was done. Could be the CMOS battery is dead and BIOS settings aren't holding or the clear cmos was jumpered. Not saying that's the case, but same as me I'm sure you've seen people do some funky stuff between point A and point B. I agree as well that the No Post thread is a good place to start. As far as it not being possible for the GPU to be shot, heh, if you knew how many times I've seen people not seat the GPU properly, fire up the system and fry the card, you would understand why I agreed it was a possibility. I never said it was likely, just possible.

tiny voices · Oct 3, 2014

I do not believe you have seen many people fry GPUs by not seating them properly. that is not even possible. Sorry. That just does not happen.

The GPU is NOT broken here., I'm confident of that. I am also confident that unless the CMOS battery FELL OUT that is not related either.

Darkbreeze · Oct 3, 2014

tiny voices :

How in the name of God could you have ANY idea what the OP did, or DID NOT, do, between the time the PC was working and the time he hit the power switch to fire it up in the new case? Regardless of what you think, or say, graphics cards get damaged all the time by improper installation whether physically or electrically it's still fried, or if you prefer, broken.

Since you're so confident the GPU isn't the issue, which it may not be but I wouldn't rule it out either, what's the problem? Seems the RAM shouldn't have been removed, or the CPU, or anything else aside from the GPU, between removal and installation, so if everything was working correctly before, and nothing but the GPU was removed, I'd think the problem had at least a fair chance of being related to that or else as mentioned before, perhaps something is connected wrong. Or maybe it's the old standoff (Or other foreign object) under the board routine.

And maybe you haven't seen it but I've seen quite a few threads where the OP has clearly said at some point they had REMOVED the CMOS battery, trying to solve or correct the problem, because they had heard it would reset the BIOS. So it's always a possibility. Unless you happen to know for certain what the problem is, possibilities are what we're usually dealing with until it becomes a certainty. You're suspicions, whatever they may be, may be correct, but until the problem is resolved, that's all they are is suspicions, and I'm suspicious of everything until it's ruled out.

tiny voices · Oct 3, 2014

OP, plain and simple, I SERIOUSLY doubt your card is broken.

The CMOS battery issue, which I already stated, could be the answer, or actually the problem.

Help! I moved my alienware x51 to a new case wit a new psu and the gpu is not working!!

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