The 4K Dell OptiMac - 9020 MT - Core i7-4790 - Radeon RX 570 - LG 4K IPS Monitor

[mbatrawi]

That's only rated 290W and you need one that's at least 450W with a 8 pin power connector for the graphics card. There is no 8 pin power from the Dell PSU.

any recommendation please

 

[trs96]

any recommendation please

see previous post.

 

[mbatrawi]

https://www.amazon.ae/Tecnoware-ATX-550W-power-supply/dp/B084W8Y687/ref=sr_1_1?crid=39JBAI2ODARDW&keywords=psu%2B550w%2Bwith%2B8%2Bpins%2Bconnector&qid=1674706821&sprefix=psu%2B550w%2Bwith%2B8%2Bpins%2Bconnector%2Caps%2C193&sr=8-1&th=1

is this one ok

 

[trs96]

is this one ok

I would avoid it. Get a name brand like MSI. Has a 5 year warranty. This one should have the 8 pin supplemental power. The price is very good for this. About 39 USD so not expensive.

https://www.amazon.ae/MSI-A550BN-Bronze-Circuit-Frequency/dp/B09GW4S27Q /ref=sr_1_1

 

[Toyo72]

I would avoid it. Get a name brand like MSI. Has a 5 year warranty.

Can confirm that they back their warranty as well. My son had one fail after about 2.5 yrs in his modest gaming rig and they replaced quickly under warranty.

 

[trs96]

Recommended 16GB Timetec kits are now selling for $19.99 on Amazon. New, not refurbished. If you use your OptiMac for video and photo editing and/or audio production, you want as many high quality, matching DIMMS as you can get. If your Dell came with 2 x 4GB of DDR3 it's not going to suffice. Buy two kits of Timetec 16GB and max out your ram at 32GB. The SFF and MT both have 4 ram slots that you can populate.

Note the 9020 USFF only has 2 ram slots so 16GB total is the maximum ram config.

https://www.amazon.com/gp/product/B00IV19HZE/?tag=tonymacx86com-20

 

[Prasident]

Following this great guide, I installed Catalina with OpenCore. After copying the installer EFI folder to the SSD, I was able to reboot. Then I added all the sn#, uuid, MAC address, etc to the config.plist with ProperTree. I did the OC Snapshot and OC Clean Snapshot but after restarting I see this:

Is it a kind of OC version mess ?

EDIT:
It WAS an OC version mess !
This is my everyday Hackintosh with Monterey and OpenCore 0.8.0
I want to install Catalina on another hard drive so I used the EFI folder provided here. But it is an OC 0.6.9 version and this was not a good idea !

I used OCAT to get everything in the OC 0.6.9 way for this SSD with Catalina. Now I can pick either Monterey or Catalina in the One time Boot Setting (with F12).

 

[trs96]

Recommended 16GB Timetec kits are now selling for $19.99 on Amazon.

Now at $18.99 https://www.amazon.com/dp/B00IV19HZE/?tag=tonymacx86com-20

$38 for 32GB is about as good as you can get for new ram.

 

[trs96]

Just checked the Amazon best sellers today. Amazing to see the 9020 SFF still at #1. The mini computers with Celerons sell nearly as good but they don't hold up longer term and are very limited in what you can do with them. The N100 series are good for just basic web browsing, streaming etc. They are meant to be an internet appliance. Worst of all you can't install macOS on them due to incompatible graphics.

The mini PCs are all plastic, run hotter and usually come with generic ram and NVMe SSDs. With a 9020 you can use a Gen 4 NVMe SSD in the x16 slot and get speeds faster than any Macbook laptop that Apple sells. I use the SN770 and get 3GB/s read and write speeds. Last year I paid 29.99 dollars on Amazon for a new SN770 500GB. Since then the prices have gone up. I bought right at the bottom of the crash in NAND flash prices.

Today, I would opt for a 1TB SN770 that sells for $80. I don't see prices ever going as low as late last year.