- Joined
- Feb 22, 2011
- Messages
- 95
- Motherboard
- Gigabyte GA-Z390 Gaming X
- CPU
- i9-9900K
- Graphics
- RX 6900 XT
- Mac
- Mobile Phone
Hi everyone.
I have an late 2009 27" iMac that some time ago while I was upgrading the gpu and replacing the dvd with a ssd, I broke something on the logic board so since that I had no display on it, I tried to resolder the lvds connector but no luck.
Any way the iMac works great with other display via mini displayport.
So last week I ordered on ebay a controller board for my display, LM270WQ1-SDA2 and use it as extenernal display for my hackintosh.
And today it arrived
The model I bought have only displayport in connector, no hdmi, no vga, no dvi.
It working great although I'm getting a flickering issue on high lights, so I contacted the seller and it says that I should try another power adapter. I'm using a 12v 6A brick psu but the truth is that is a really cheap one from amazon (about 10€), so probably they are right.
If I fix this issue I'm planning to empty the old iMac and convert it on a external display.
Good things about this controller board, complete resolution control and even let rotate the image, cheap (about 35€ from China to Spain)
Bad things, no brightness control via the controller boardo or via software like NativeDisplayBrigthness
**EDIT: 21-October-2018
I destroyed the main controller board after try to power it with a pc psu (yellow 12v and black gnd wires)
Maybe I changed the polarity, not sure. The pc psu have 17A for the 12v so it should works.
Anyway, the eBay seller is going to send me a new one free. Such a nice guy
*** EDIT: 4-December-2018
I received today the new controller and I fixed the flickering problem with another PSU. This time I bought a 12v 10A to be sure that it have enough power for the display and good quality one. No cheap amazon psu recommended for this.
And now works amazing!
I will using on this way for a time, but when I had some time I want to empty the iMac and transform it on a external display, maybe with usable ports and speakers.
I have an late 2009 27" iMac that some time ago while I was upgrading the gpu and replacing the dvd with a ssd, I broke something on the logic board so since that I had no display on it, I tried to resolder the lvds connector but no luck.
Any way the iMac works great with other display via mini displayport.
So last week I ordered on ebay a controller board for my display, LM270WQ1-SDA2 and use it as extenernal display for my hackintosh.
And today it arrived
The model I bought have only displayport in connector, no hdmi, no vga, no dvi.
It working great although I'm getting a flickering issue on high lights, so I contacted the seller and it says that I should try another power adapter. I'm using a 12v 6A brick psu but the truth is that is a really cheap one from amazon (about 10€), so probably they are right.
If I fix this issue I'm planning to empty the old iMac and convert it on a external display.
Good things about this controller board, complete resolution control and even let rotate the image, cheap (about 35€ from China to Spain)
Bad things, no brightness control via the controller boardo or via software like NativeDisplayBrigthness
**EDIT: 21-October-2018
I destroyed the main controller board after try to power it with a pc psu (yellow 12v and black gnd wires)
Maybe I changed the polarity, not sure. The pc psu have 17A for the 12v so it should works.
Anyway, the eBay seller is going to send me a new one free. Such a nice guy
*** EDIT: 4-December-2018
I received today the new controller and I fixed the flickering problem with another PSU. This time I bought a 12v 10A to be sure that it have enough power for the display and good quality one. No cheap amazon psu recommended for this.
And now works amazing!
I will using on this way for a time, but when I had some time I want to empty the iMac and transform it on a external display, maybe with usable ports and speakers.
Last edited: