From my observation, having the monitor plugged in to GPU doesn't affect the hash rate.
I set the windows to turn the screen off automatically after 1 minute.
I also switch the monitor off on the wall when not using.

Might want to reset your BIOS configurations and start again?
From experience, after booting past the logo, the screen will go dark and shows no signal detected for a while, can be quite a while, before it lit up again and launch into windows. But if you get the reboot loop, might want to reset Bios and start again.
I hope not. But I've lined up a few options. Will know when the components arrive

Have you disabled fast boot on both BIOS and Windows?


I have read that you are not supposed to connect the molex-floppy thing if you are using powered riser. That is meant of the older design of riser which is not powered.

For Ethhash and Equihash, this is what I did
1. Push the memory clock up until it becomes unstable, and use the highest stable setting.
2. Using the highest stable memory clock setting, push the core clock up until it becomes unstable.

Test it on Neoscrypt after that to ensure system is stable. Equihash is most friendly. So, I tend to do the optimization on Ethhash, then test the same result for stability on Neoscrypt. If its stable on Ethhash and Neoscrypt, it is highly likely to be stable on Equihash.

I'm mining on Nicehash, only switching between the 3 main algo. It usually runs on Equihash.

On Afterburner, I've pushed Samsung ram up to +775. I've pushed Micron ram on Aorus up to +775 as well. However, Micron ram on MSI Gaming X only goes up to +625. The absolute mem clock speed on MSI Gaming X will be about 9Ghz while the rest are clocking above that.

Core clock from 0 to +175. Aorus 0. MSI Gaming X +25.

MSI Gaming X, eventhough the card is real solid, the power consumption is higher and overclocking potential is limited compared to Gigabyte Windforce/G1/Aorus.

I've un-link power limit and temperature limit. My temp limit is 68dC and card will throttle down when temp reach 65dC which is my ideal max temp.
I'm also running a custom fan curve that holds the temperature around 60dC or lower while not being too loud.
Just play with it, the GPU will generate a certain amount of heat given a certain amount of work it is required to perform, you can turn your fan speed all the way up to keep it really cool but it creates a lot more noise for a limited amount of temperature decrease. Find out where the temp likes to settle and adjust the fan speed to hold it there.

GPU spacing is also very important, if you space them really tight then the rig will run a lot hotter.

At the moment I don't have any extra fans on my rig.

I'm very new to this gig, less than a month, I approached this scientifically and spent the first 2 week optimizing the system and testing ideas.

Read up about Marginal Diminishing Return.

Thanks for your input, may I know when you are using that m.2 adapter that burnt up did you connect a cord to the floppy socket on the m.2 adapter?

I've also ordered a PCIE 1 to 2 adapter, slightly cheaper.

May I know how many cards do you have in total for the rig?

Hey guys, I've got the h270plus which is pretty much the same.

I've got 7 GPUs working, and manage to isolate the issue to M.2_2 slot.
That's after swapping everything around, m2 riser, gpu, and all.

It doesn't matter if I use GPU as monitor or iGPU, it won't detect the card that's plugged into M.2_2 slot.

When I only have 6 GPUs, I tried one of them on M.2_1 and that works, when I move it to M.2_2 it doesn't work.

So yes, isolate that to M.2_2 slot. Regardless of the number of GPUs.

I have tried all different combination of bios settings, no luck.

This is the type of riser I am using which is M2 to USB 3.0
https://www.ebay.com/itm/NGFF-M-2-to-PCI-E-X16-Slot-Transfer-Card-Mining-Pcie-Riser-Card-VGA-Cable-Mini/152641034432?hash=item238a1d58c0:m:mNaDkKrgu1qY3l8SgUW9jhg

I think that might be the issue?

All the videos I saw online that runs 8 GPU successfully is using M2 to PCIE
https://www.ebay.com/itm/PCI-E-4X-Female-to-NGFF-M-2-M-Male-Adapter-Converter-Card-for-Desktop-PC-TOP/162608141319?hash=item25dc335407:m:m8uOJvKBiH8NTq-VMqnxQLQ

Could that be the issue as one is 16X and the other is 4X? And to do with M.2_2 not able to work with the 16X card?

I've ordered the 4X on eBay and that will take a while to get here.

If anyone else has any insight, please do let me know how you get 8 GPU working.

https://www.asus.com/nz/Motherboards/PRIME-H270-PLUS/specifications/
1 x M.2 Socket 3*1, with M Key, type 2242/2260/2280 storage devices support (SATA mode & X4 PCIE mode) <-- x4 PCIE
1 x M.2 Socket 3*2, with M Key, type 2242/2260/2280 storage devices support (both SATA & x2 PCIE mode)*1 <-- x2 PCIE

I've just got my hands on a second hand Cooler Master V1000 real cheap, however it doesn't come with any cables and I have to look up every where to get the right cables. Its been quite an adventure.

Finally, it comes down to the 6-pin GPU ports, can I use the cable from the link below, PCI-E 6pin Male to Dual Male PCIE 8pin (6+2pin) Graphics Video Card Power Cable, to power the GPU from the 6-pin connection?

https://www.ebay.com/itm/PCI-E-6pin-Male-to-Dual-Male-PCIE-8pin-6-2pin-Graphics-Video-Card-Power-Cable/322577452584

Question here, with the HX1200 6pin peripheral/sata port, can I use PCI-E 6pin Male to Dual Male PCIE 8pin (6+2pin) Graphics Video Card Power Cable like the one on the link below in eBay to power 6 pin riser cards?

https://www.ebay.com/itm/PCI-E-6pin-Male-to-Dual-Male-PCIE-8pin-6-2pin-Graphics-Video-Card-Power-Cable/322577452584

My intention is to use one cable per GPU and one cable per riser instead of daisy chain.

Thanks! With this mobo can I stick with using the onboard HDMI port for my display monitor?
I noticed on some video they connect it to one of the GPU?

If I have 8 GPUs and 2 PSUs, can I connect 4 on Channel A and 4 on Channel B to spread the PSU load out?
Is it a must to fully utilize all 7 PCIe on Channel A before I can move onto Channel B?