My graphics card gets insufficient power

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Alpuka

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Jan 30, 2015
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I bought an MSI GTX 1070 Gaming X Yesterday, and it arrived today. But after installation, my computer only boots 1/10 of the times I try. When it actually boots, it will crash the second it comes under load. My old AMD R9 290X still works when I plug that in. From my observation my graphics card is not getting enough power even though I own a Corsair RM750 psu. I am very confused. Could there be a problem with the wires I'm using even though they work with my R9 290X? I'm stressing out, because the card is kind of expensive.
My setup is:

Windows 10 Pro 64

Motherboard: Asus Maximus Vi Hero

CPU: Intel Core i7-4770K

CPU Cooler: Corsair Hydro Series H80I

GPU MSI GeForce GTX 1070 Gaming X

Memory: Corsair Vengeance Pro DDR3 2400 C11 2x8GB

SSD: Samsung 840 Evo 120GB

HDD: Hitachi HDS721050CLA362 500GB

PSU: Corsair RM750 - 80 Plus Gold Certified.

Soundcard: Asus Xonar Phoebus Solo

Custom LEDs: NZXT Sleeved LED Kit cable
 
Solution
EpIckFa1LJoN


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I am sadly using both cables, and you're right, it's an 8-pin and a 6-pin.
 
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And they are the same cables running the AMD card. Hmm.

Maybe the problem isn't the power then.

Try uninstalling the drivers for the AMD card and then try the Nvidia card.

The only other thing I can think of is a bad card or a bad PSU.
 
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When I use my 1070, there's a chance my computer won't even boot. Not that I can see what happens on my screen, but my keyboard doesn't use the rgb settings I normally use. My screen turns on with the computer - It says 1080p optimal resolution or something when I turn on my computer. But it shows nothing. Most of the time my keyboard and mouse won't turn on either, so I'm sure that it's my PSU. Kind of glad that I still have a 2 year warranty on it.
 
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Hmm. Well to be sure I would try putting in a different PSU. 750W should be more than enough, even had the PSU degraded, the necessary output to power your rig should be well below 60% utilization at load. I find it really hard to believe the PSU has trouble booting up a 1070 and no trouble booting up the r9, there isn't THAT much of a difference in consumption there.
 
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But it seems like it actually is the PSU since when the 1070 is installed, my computer isn't booting. But as I said, when it actually does boot, as soon as I put it under the slightest of loads my computer with crash. I read this on another site
"A video card or other component may be say it needs a 550w power supply, and it probably does only when fully loaded. So you may not experience problems on power on, but only after playing a game or something else that stresses the GPU.

Specific symptoms include:

lockups
BSODs
graphical corruption
display goes black"
And that sounds a lot like what happens when my gpu gets under load.
I will try to put a different psu in later, it takes some time.
 
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I haven't had the chance to overclock. I can only rarily boot my pc.
 
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im trying to figure out which power wires u are using. cuz my 1070 has a 8pin connection. and my wires are 2pin+6pin same harness
 
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Same thing...8 pins are the exact same pin out as a 6 pin with 2 extra ground wires.
 
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k well this was hella confusing.:
EpIckFa1LJoN said:
I think the 1070 requires two separate power cables are you using both?

If I recall its an 8-pin and a 6-pin. Both would be required to fully power the device.


I am sadly using both cables, and you're right, it's an 8-pin and a 6-pin.


---> from what ur first post says... its gotta be ur 1070. if its not that then its the mobo somehow rejecting it.
as u stated, ur amd card works but 1070 doesnt.

have u tried resetting bios thats pretty much ur best bet. nothing u can do further if u plug the 1070 in properly and it doesnt run.
i honestly highly doubt its ur psu. if its shot then ur amd wouldnt work
 
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I'd suggest he use DDU to uninstall all old drivers and try again. If that doesn't work, it's more than likely the GPU, if the AMD GPU still works. But it could also be a bad PSU....hard to tell online, without testing it with a multimeter.
 
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just additional info.

i had a r9 380. a few weeks ago i put in my 1070.
it was a simple re-re. installed the gpu and wired it up 2+6 connection. everything turned on. then i began my driver installation.. easy shit to get the gpu working
so i can relate to how it wouldnt make sense that ur old gpu works but ur new doesnt,
 
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Yes 8-pin is just 6+2-pin coming from the same cable, but his OC card requires one 6+2-pin and one 6-pin if he had a differnt model it might be a single 8-pin (6+2) my old 650 Ti was a single 6-pin, my current Zotac 1080 Amp Extreme needs two 8-pins. Each PCB is different based on manufacturer and if it's built to be OC'd or not. Factory OC cards require more power because they are always run at an increased clock rate and they have more fans than the reference card, also have custom PCBs to deal with the increased power.

I thought it might be drivers as well, if not that the card, but it won't hurt to swap the PSU and check.

No one has all the information but him, 90% of the time I get something fixes asking on here is because someone gives me a partially right answer that leads me in the right direction.
 
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so ur ABSOLUTELY sure u need to plug in both 6pin and the 2+6?
i havent done any searches for u yet but shit have u tried with just the 6+2 and leave out the 6 to see if it runs?

what is so special about that msi which needs the additional 6 pin?
i figured that pin is just with ur harness if u just need the 6pin only. and theres the 6+2 for the ones that take those


ok well i sorta look like a fool but yeah u need both connectors in.
im no longer any use lol
gl bud
 
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UPDATE: It seems that everytime I switch the two power inputs around, my pc will boot normally. It will still crash under load though. So I think it's a wire gone bad.
 
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have u uninstalled amd drivers?
what other 3rd party software do you use and are they on your start up list? ie. Afterburner.
not sure if thats going to help because when I installed my 1070, I just turned off my pc and swapped the cards out and everything ran fine.

If you just bought the card and you have the receipt I say bring it to the store and tell them what happened. Just get it done asap, not sure how you are taking this but if it were me... I'd be pissed cuz its been 2 days

*btw leave the 6+8pin in when u run that
... also having trouble finding that 1070 model. do you have the seahawk?
 
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https://www.msi.com/Graphics-card/GEFORCE-GTX-1070-GAMING-X-8G.html#hero-overview
I have messaged the retailers support, so I just have to wait for their answer.
 
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Okay well since this guy is hung up on the cables even though three people have explained it to him, and he cannot seem to locate any information on the extremely popular MSI Gaming X, don't listen to him.

Change out the cables first, you were getting results with that it's entirely possible it is a shorted cable, not delivering full power.

Your PSU is fully modular so you should either have extra cables or even just change where you are plugging the cables in on the supply and see if any of that helps.

If that fails then I would say its the card itself.
 
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