DC-DC atx PSU

[stella]

I switched to a full DC setup, 12V 200 Ah battery with a 600 watt DC to DC atx PSU. The issue is still not fixed 100%, its only 50% better, I'm hitting shots and FPS improved a bit but its not 100% fixed. My monitor is also a 12V DC 144hz monitor so its also connected to the battery. My findings, cuz of the PC and monitor shares the same power source, my monitor turns on even if my negative wire of my monitor is not connected to the battery, why? its cuz of the HDMI. HDMI shares a drain wire and shielding also it shares signal wires i think. So the grounding acts like a negative or something. Can anyone guys help me with this. Off the rip when I tried the setup for a few games the crosshair sticks to the enemy like a glue. Its hella crispy. I added some pics, you can see from the bottom my games good and soon I added my PC to the case it went to shit mode. So I had to remove the case and the PC is in the open.
Going back to the AC monitor was soo bad, I ended up getting one kill a game. Its soo bad. The DC monitor seems helping but the monitor still feels like im moving on 20hz and recoil is shit The only think thats good is the Hit reg. Its a lot better. Help! Help!.

[stella]

my exposed PC.

[lgnicio1234]

I see you have your ethernet cable plugged in. Is your router connected to the same 12v battery or to the grid? If it's not then you may be getting some grid interference through the ethernet.

[stella]

I see you have your ethernet cable plugged in. Is your router connected to the same 12v battery or to the grid? If it's not then you may be getting some grid interference through the ethernet.

The router is also powered through the battery, also tried 5G with mobile phone. Same results, its not on grid

[cybepine]

Show us your picture of your case.

Are you able test with completely different case with different case fans?

Maybe the case fan is causing interference or some strange metal part/s of the case acts as a amplifier?

You have to do the troubleshooting yourself. You are on right track. Keep it up!

[stella]

Show us your picture of your case.

Are you able test with completely different case with different case fans?

Maybe the case fan is causing interference or some strange metal part/s of the case acts as a amplifier?

You have to do the troubleshooting yourself. You are on right track. Keep it up!

Its a LianLi cabinet, I even tried 2 other coolers, I even stripped off the fans from the cabinet. Same results.
I thought the same too maybe Fans can cause it, so used the cabinet like a Faraday cage. After I put it inside my cabinet one of my RAM stick doesn't work. Even after i took it off from the case, my second RAM is not working. I tried multiple RAM sticks and nothing works. Only one RAM works on the first slot. So my FPS is stuck to 90 to 133 in CS. But it doesn't even feel like 144hz it still feels like im on 20hz display. The only thing that's common in all setup is my storage, 2 500Gb nvme. When I took the PC off from the case I changed the HDMI cable (honeywell) to a random HDMI cable came with the monitor. For 2 apex games about 20 mins the PC felt good. I hit 200+ frames on apex. If my PC is bad then it should not give me 200+ fps for only 20 mins when i change a display cable. The next time I try that its shit again. What is this cancer?

[stella]

This is the cabinet. One side is tempered.
My PC: i9 10900f with 3060 i have a tuf mobo

My cousin: i7 10700k with 3070 his is a tomahawk mobo

[lgnicio1234]

Interesting ... The concept of this test is good, but after putting your setup into ChatGPT it's suggesting alot of electrical faults: "Unintended return-current paths, potential ground loops, switching interference and inadequate grounding".

I'm thinking that the concept would work better if a 12V battery is used to power a gaming laptop and ChatGPT seems to agree

It suggests using a 12V Battery ---> Victron Orion-Tr Smart 12/24-15A ---> Gaming Laptop.

Since the 12V battery would only be powering the Laptop there shouldn't be any ground loops and the victron should "theoretically" provide clean stable power delivery.

It's an interesting concept and I think it's worth trying so I may give it a try.

[stella]

Day 3 Interesting findings. I took the back cover of my cabinet and placed my PC above the back plate with a mouse pad in between. The FPS and kinda wack and screen is still bad. But the recoil is crazy, i can see every single trace of bullets and hit reg is pretty decent too. Also mouse feels good way better than before. I will do some more isolation and post it. I will try to post some offline gameplay with bots on CS.

[stella]

Day 4: The games are really good. https://youtu.be/A8xRcaVo2qg 1v1 with my friend in apex with wifi, Router is connected to AC so if I connect ethernet cable to the PC the game becomes worse (bad hitreg, display feels like 20hz and recoil is harder to control). So rn I'm on wifi and you can see in the video whenever I shoot there are prediction error and 4 icons appear at the same time. A lot of no regs happened ingame too. Also some important findings with the shielding, Copper and Aluminium shielding acts like a mirror. For example HDMI, Ethernet and some audio tech wires are shielded with aluminium foils to avoid external noises but it reflects the noise back to the source. Stainless steel with proper thickness absorbs a lot of EMI and it kills them as heat. It has less reflective property. Here is what happening in my testing, I added one Brass standoff near the GPU and it was touching the cabinets back cover which is (stainless steel). So it was slightly elevated and slanted the mouse felt terrible and hit reg was also bad. Tried 5 standoffs same result its really bad. The best result I'm getting is by placing the whole exposed PC over the back cover with a mouse pad, so I don't short anything. It was really really good. Had a couple of decently games not getting one clipped. I ordered a PCIE wifi adapter. Once it arrives ill test it more. Any suggestions if anyone have let me know. Peace!