Gigabyte X470/GTX 1070 compatibility issue

TLDR at bottom now that I have a few hours of sleep.

Hi all,

I have an issue with a specific MB/GPU combination I have.

Gigabyte X470 Ultra Gaming with the latest BIOS (I have also tried the 2nd to the latest BIOS as well as the January 2019 BIOS) + 2600X
with a Palit GTX 1070 Dual - the machine will only intermittently POST (maybe 20-50% of the time). LED error code gets stuck at 'VGA'. A successful POST means a successful boot but does not guarantee a successful POST on reboot.

I have tested this without any drives plugged in the system.

with an NV 1070 TI FE - the machine will always POST, boot up and proceed to Windows (thanks Kyle for the 1070TI!)

The Palit GTX 1070 will work without issues in a Crosshair 7 / 2700X, so it's not the card either. It works on a Z77 as well, both in the x16 slots.

I want to pair the 1070TI with the Crosshair/2700X.

What else can I do to troubleshoot?

Sorry for the unformatted post. It's 2:30AM here and I'm pulling my hair out over this issue.

UPDATE:

When I put the Palit 1070 into the x8 slot of the Gigabyte, it posts without issues.
Most of my parts (the 1070, the Gigabyte X470, the Crosshair 7 and the 2600X were bought used so I'm not quite sure which is the problematic part) or a board/GPU quirk. THis may not be a long term solution though as I plan to add a NIC and/or a WIFI card to this board and putting the GPU in the 2nd slot almost blocks the slot I want to use for a NIC.

UPDATE2:

It appears the Gigabyte BIOS isn't saving my settings. CMOS battery probably dead? Will check tomorrow with a new battery. Can't see why a dead battery might cause issues like this though. CMOS battery is reading 3.06volts so I doubt that is the issue.

TLDR
1070 I want to pair with the system will not run in the GB' x16 slot. Works in x16 slot of 2 other boards/systems.
Will run in the GB board's x8 slot but not feasible for me.
All settings in GB board currently stock.

Another 1070Ti works in GB board's x16 slot.

Not sure what the problem is

Sounds like a bad board. Not a Gigabyte brand issue. I have had an Asus Crosshair V do wonky stuff. I also had an Asrock board no post at all unless I reset the Bios 100% of the time. In all cases RMA fixed the issue perfectly.

I've built over 1000 systems, not an exaggeration, over the last 25 years between personal about 2% of that and business the other 98%.

At least 500 of those were when I was a teenager in the mid 90's and worked for a Computer Sales company in which back then everyone was building computers in mom and pop shops and selling them as Dell was nothing more than a magazine order company and HP etc... was barely found in super retail stores.

Hiowever, it is not a strange occurrence to have in some people's cases considerable bad luck with particular brands, i.e. some wont buy Ford cars because they had a bad X and then in the next car they had a bad Y, while other people can buy Fords for 40 years in a row when they need a new car and never have a problem.

I, like you considering problems with Gigabyte, have experienced more problems with Asus boards than any other brand. Doesn't mean I think they are bad, but my personal experience leads me to go for other brands first unless Asus really has what I want. So you are justified in your opinion. But I would just RMA the board. In the case of the x470 chances are you are perfectly within your warranty window for a RMA.

You might have a broken or weak soldered pin under the PCIE slot that is not allowing data to transfer from the card. Yes it can happen. These boards are literally mass manufactured in an assembly line of robots and dipped in molten solder to fuse all the pins to their traces. Chances are one has a weak solder that all it took to break was a few insertions and removal of a GPU or add in board in the primary slot. Also some people forget to slide the GPU slot lock back and they yank hard on the PCIe slot and that can cause a solder or trace line to break.

That is why board makers are installing all these metal wrapped reinforced slots because they were getting tons of RMAs from those dastardly and redunculous PCIe GPU slot locks. But due to the 2 to 3 lbs in some cases weight of huge gpus you have to have the damn locks sigh.

Actually, the reason I posted this to begin with is because I'm not quite sure it's the board either.

If a 1070 Ti will work in the x16 slot, the 1070 should also without any issues. If the 1070 Ti didn't work as well, then I would have gone straight RMA without a need to post this.

Luckily the board was purchased locally and still has warranty I think. Im posting this mainly to get input from everyone as the troubleshooting results don't add up just to see if I can fix this without an RMA.

Either way, looks like I'll try to do an RMA if I can't fix it by tonight. Trying a new CMOS battery just in case.



EDIT: additional backstory after getting in touch with the seller/board's original owner just today:

This board is a replacement/RMA by someone whose original board had the exact same issue and the exact same brand of GPU.

Original owner's 1070 TI had the exact same issue, and store tested a 1080TI both from the same brand (Palit), and issue persisted.

Original owner's 970 and RX580 had no problems. Owner moved to a B450 and eventually sold the board (for a reasonable price) to me when the replacement (my current board) came back, without testing the board anymore.

Since I happen to have another Palit 1070 TI, I'll be testing the GPU this evening to confirm that the board hates the GPU brand, and off to RMA tomorrow. The 1070TI that happened to work in this X470 board was a Founder's Ed from Kyle.

First time I've had incompatibilities with GPU brands and a motherboard.

maybe try putting the bios in legacy mode and see if that works? only thing i can think of is that it's related to UEFI support in the gpu bios. but i dunno i haven't seen something like that since the 3000 or 4000 series cards from AMD that didn't work in some older boards, never seen it in a newer board though.

That means enabling the 'compatibility support module' right? Should be easy to test since the error shows up early on.

Thanks for this, I'll try that later this evening, alongside with testing out another 'Palit' brand GPU.

Spent a lot of of this workday thinking about getting that board to work. But if the other Palit 1070Ti and the CSM doesn't work, then it's off to RMA.

EDIT:
X470 doesn't like my Palit 1070 TI either. Off to RMA this board.