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PCIe 3.0 Graphics Cards on Z77/H61 Platforms

ZXSpectrum

ZXSpectrum

ZXSpectrum

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Has anyone experienced this issue at all?

Recently a friend of mine had a problem with his daughters old pc and it appeared as if the GPU had given up the ghost (I think it was an old 8800GT) So rather than getting a graphics card to fit into her system i said why not upgrade yours and then fit your old one in her machine? He had a system that was working fine 2700K, 16Gb, Gigabyte Z77-D3H motherboard, GTX570 so he purchased a 1660 but for some reason it would not post/display. Do after a bit of trying things I had a look and thought it may just have been a BIOS issue so I managed to get that updated and it seemed ok. But then he was getting random issues again with not displaying so I looked again. It appears as if using a PCIe 3.0 GPU in the system is causing the bios to not display via either the onboard or the GPU. I tested with the 1660, a 960 and also a Quadro P400 and all did the exact same thing until I installed a gtx580 and that all worked fine. The only difference is that the newer cards are all PCIe gen 3.0 and the 580 is 2.0.

So I thought it could be down to the CPU as the 2700K only officially supports PCIe gen 2.0 so I installed a 3570K and that did the exact same thing. So currently he has to buy a new CPU/Motherboard/Memory to get back up and running.

The strange thing is that I have the exact same issue with a little emulator system I am building for a friend with a Asus P8H61-I LX R2.0/RM/SI board I have (Running a 2600, 8gb) I cannot get the GTX960 to display in the system at all. At first i thought this could be a locked down SI version of the bios that RM had to stop people playing with their systems but I have spoken to my contact at Asus and that doesn't appear to be the case. Its old but does support Ivybridge and PCIe 3.0 graphics cards but I am not able to get any of them to work. Its a really odd situation but as the components are so old its not something that's covered under support so really at the mercy of doing google searches on forums for possible help.

Any help or advice would be appreciated.
 
Is the bios up to date on the Z77? Updating can sort out compatibility problems with newer cards. I've had a 1050ti running fine on my Gigabyte Z77 board. Running it's final beta bios.

That RM board won't work with Ivybridge cpus without modding the bios. I know because there was a thread about it in the boards forum on here.
 
I had some issues with running certain Radeon RX5xx GPUs on this board (Z77) it was a combo of mobo & GPU BIOS (Some GPUs worked fine) that could cause a black screen. Look for a BIOS option for legacy boot/mode which disables UEFI I think and the GPUs that wouldn't POST would work but you had to wait for Win10 to boot and install a driver before you got a display. Annoying but worked as I was building mining machines that once setup would run for weeks at a time.

Plus update the mobo BIOS of course.
 
Older motherboards can have weird problems with newer GPU's.

I had an RX580 running on a Z77 motherboard, first I had to update the bios and then it would only run in the second slot for some reason, my at the time HD7950 functioned perfectly in the primary slot.
 
pandem0nium said:
Is the bios up to date on the Z77? Updating can sort out compatibility problems with newer cards. I've had a 1050ti running fine on my Gigabyte Z77 board. Running it's final beta bios.

That RM board won't work with Ivybridge cpus without modding the bios. I know because there was a thread about it in the boards forum on here.
Click to expand...

BIOS is all up to date, I tried the latest Beta one as well as the older official release.

I have got the RM board running with an Ivybridge (3570K) on the BIOS 1401(I Had my contact at Asus confirm Ivy support in that version). I have now had a play about in the BIOS and the 960 seems to work ok now. Still need to do a bit of further testing. And for some reason the HDMI isn't working but the DVI and DisplayPort seems ok but I am using an adapter from DVI-HDMI.

My friend has now ordered a Ryzen 5 3600, B450 Motherboard and 16Gb kit of memory to go with the 1660. Still puzzling though..
 
ZXSpectrum said:
BIOS is all up to date, I tried the latest Beta one as well as the older official release.

I have got the RM board running with an Ivybridge (3570K) on the BIOS 1401(I Had my contact at Asus confirm Ivy support in that version). I have now had a play about in the BIOS and the 960 seems to work ok now. Still need to do a bit of further testing. And for some reason the HDMI isn't working but the DVI and DisplayPort seems ok but I am using an adapter from DVI-HDMI.

My friend has now ordered a Ryzen 5 3600, B450 Motherboard and 16Gb kit of memory to go with the 1660. Still puzzling though..
Click to expand...

Yeah, it's an interesting one. Mine's a fairly similar board. Revision 1.1.

https://www.gigabyte.com/Motherboard/GA-Z77MX-D3H-rev-11#ov

I have a 2080 I could give a test with it. If I've got time over the weekend.
 
I have a Gigabyte Z77UD5H with a 3770k @4.5ghz and a Gigabyte RTX2060 OC and it works perfectly. I upgrade it from a R9 290 and there were no issues at all. The CPU and GPU seem really well matched too.
 
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