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Author Topic: Do you use hdmi dummy plug for your mining rig?  (Read 11598 times)
pornluver (OP)
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April 03, 2017, 07:59:09 AM
 #1

https://rumorscity.com/2013/12/06/how-to-create-dummy-plugs-for-your-graphics-cards/

Says you should.

I notice that my asrock BTC won't boot if not connected to monitor. I need only 1 monitor for the whole mining rig though.

So I just want to make sure.
Altcoining
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April 03, 2017, 08:34:31 AM
 #2

https://rumorscity.com/2013/12/06/how-to-create-dummy-plugs-for-your-graphics-cards/

Says you should.

I notice that my asrock BTC won't boot if not connected to monitor. I need only 1 monitor for the whole mining rig though.

So I just want to make sure.

Yes. Their about $10 on amazon, if you live in the US. But if you want to DIY, that seems like an okay solution.
kemo6600
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April 03, 2017, 08:48:45 AM
 #3

You have two options .

High price around 10$ can get you HDMI dummy plug that will emulate 2K or 4K screen for easy management when you use remote desktop.

Cheap price around 1.5$ can get you HDMI to VGA converter that will get the system to boot  but only at 640X480 if you using remote desktop to install the drivers ,you can connect a monitor once after you install drivers once and raise the resolution and leave it at it is .
arielbit
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April 03, 2017, 02:13:20 PM
 #4

i didn't use dummy plug since 2013..

i want to know what is the difference between my rigs and the rigs that require one.
kemo6600
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April 03, 2017, 06:25:27 PM
 #5

i didn't use dummy plug since 2013..

i want to know what is the difference between my rigs and the rigs that require one.
If you are running RX480/RX470(new generation only). They don't boot with most boards
koody
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April 03, 2017, 06:36:39 PM
 #6

i don't use dummy plug with my RX 480/470, i only use dummy plug when i need control my rig by teamview.
ShopemNL
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April 03, 2017, 06:47:47 PM
 #7

i didn't use dummy plug since 2013..

i want to know what is the difference between my rigs and the rigs that require one.
If you are running RX480/RX470(new generation only). They don't boot with most boards

If system crashes it will boot, first start it wont.

bittawm
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April 03, 2017, 07:03:25 PM
 #8

this is probably a fix for the 4mhs PITA bug

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dagarair
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April 03, 2017, 07:10:43 PM
 #9

pro btc board can boot without dummy but you have to set the internal video card on as primary on the bios.  it sucks though bad.  I use dummys

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Za1n
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April 03, 2017, 07:15:55 PM
 #10

I use dummy plugs mainly to get a usable screen resolution when using remote management software such as VNC. Since my main workstation is a 4k screen, the default 640x480 or whatever is way to small and even some windows such as the Wattool do not display fully.

I use RX470/480's almost exclusively and all my rigs will boot without the dummy plugs, indeed I have only about half the number of plugs as I do rigs so I often have to swap them around.
adaseb
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April 03, 2017, 07:26:52 PM
 #11

It will boot but will run at 4MH/s for the main 16x pcie slot GPU.
arielbit
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April 03, 2017, 11:11:21 PM
 #12

i didn't use dummy plug since 2013..

i want to know what is the difference between my rigs and the rigs that require one.
If you are running RX480/RX470(new generation only). They don't boot with most boards

If system crashes it will boot, first start it wont.

i have a 3x rx480 rig...not using dummy plugs here

pro btc board can boot without dummy but you have to set the internal video card on as primary on the bios.  it sucks though bad.  I use dummys

so..it must be the boards.....using old socket 775 boards here
induktor
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April 03, 2017, 11:47:03 PM
Merited by vapourminer (1)
 #13

Hi
I don't use dummy plugs, not on the H81 Pro btc boards, AM1 boards, F2A88X boards, Z170 Boards.

both with RX480 and GTX 1060 / 1070 and 1080  (everything on linux, of course  Wink )

there is a trick to read the EDID from your monitor, save it to a file, and then feed it manually to the X window, so it will not check if the monitor is present or not, which is great when you wanna control fan speeds, overclocking or enter remotely via VNC, because the OS thinks the monitor IS connected  Grin

if there is interest i can find my notes how to doit, and post it.

BTW: I did that mod with the VGA-DVI adapter back in 2013 when it was necessary to do it, but nowadays makes no sense because there are no more analog GPUs, all modern GPUs has DP / HDMI / DVI-D only, no DVI-A anymore.

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LoveCaptcha
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April 04, 2017, 01:20:04 AM
 #14

Hi
I don't use dummy plugs, not on the H81 Pro btc boards, AM1 boards, F2A88X boards, Z170 Boards.

both with RX480 and GTX 1060 / 1070 and 1080  (everything on linux, of course  Wink )

there is a trick to read the EDID from your monitor, save it to a file, and then feed it manually to the X window, so it will not check if the monitor is present or not, which is great when you wanna control fan speeds, overclocking or enter remotely via VNC, because the OS thinks the monitor IS connected  Grin

if there is interest i can find my notes how to doit, and post it.
yas! make it dummy friendly too if you can!
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April 04, 2017, 03:49:38 AM
 #15

if this is just to correct its course 4mhs PITA
then his problem where if it's just simply fix it.
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April 04, 2017, 04:25:36 AM
 #16

Yup, using these for $3 each. https://www.aliexpress.com/item/New-Arrival-for-HDMI-to-VGA-Adapter-Converter-For-Audio-HDMI-PC-Laptop-HD-Line-DVD/32764863124.html

Although my rigs work without dummy plugs, the resolution is 640x480. Using these dummy plugs, 1920x1080 is available, much easier to work with if troubleshooting is required.
Tmdz
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April 04, 2017, 05:09:31 AM
 #17

Never had that 4mh problem running dummy-less.

I just have to work with the 640x480 screen size, isn't much of problem after it is setup and you learn how to work with it.

Different mobos may react differently to running without the plug, so it is not a bad idea to have some just in case.
toptek
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April 04, 2017, 08:31:43 AM
 #18

nope a  KVM switch i need that more ........ a KVM will do that same thing but better imo ...

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dagarair
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April 04, 2017, 11:13:59 AM
 #19

yeah but when you have more than 3-4 KVM's become a bit expensive

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ph1102
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May 09, 2017, 11:30:08 AM
 #20

Yup, using these for $3 each. https://www.aliexpress.com/item/New-Arrival-for-HDMI-to-VGA-Adapter-Converter-For-Audio-HDMI-PC-Laptop-HD-Line-DVD/32764863124.html

Although my rigs work without dummy plugs, the resolution is 640x480. Using these dummy plugs, 1920x1080 is available, much easier to work with if troubleshooting is required.

Wait, wait, wait.. So, you want to say that this thing can do the same thing as HDMI dummy plugs? Because, there is a significant difference in price... Grin
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