Getting black screen or no signal while booting and sometimes a 5 beep and red light on boot

[BDawg82]

Hey so I've been having a major issue with my HP Compaq pro 6305 SFF desktop with windows 10 pro I bought refurbished from Walmart approximately 5 years ago where I'm getting no signal to display when I boot up. So I had recently bought a couple 8 GB hi flash ram sticks for it and it seemed to work good for a week or so and I had been messing around trying to get TPM 2.0 activated so I was messing with the bios settings alote before I realized my computer does not have the ability to use more than TPM 1.0 but just before the issue I had a black screen error that said something about a memory error and I never really thought anything of it but it had shown the same screen a couple times in a row until all of a sudden my computer stopped showing anything and we'll I began troubleshooting anything and everything from cleaning everything to replacing the AMD A8-5500 processor without ever touching and knowing anything about processors before I might add and long story short I broke one of the gold pins on it on one of the corners. And that made me end up buying a new used AMD A10-5800 Series processor that fit in the socket correctly and moving the ram sticks around in every configuration I can think of. Anyways I continue getting the same issue with no signal/picture coming from the displays I've tried. I have a Nvidia T400 4gb graphic card that I have had working I bought the same time I bought the computer and I've tried all display ports I have from the mini display port of the Nvidia Graphics card the regular display port built into computer and the old school screw in VGA port with no display. I've removed the cmos battery countless times with no change pushed the yellow cmos reset button have had all the drives out and continued to get the same issue. I have continued to get either a 5 peep error code with red light flashing in sequence and the GPU power box fan turning on full blast after about a min or so and no picture and computer will only shut down if I push and hold the power button or I have got it where it won't have any error code beep or red light but still no picture and the power box fan turning on full blast after a min or so which has happened right from the start no matter what. Also I can not get any of the USB ports to turn on/ send a signal to my keyboard I know that works, but if I plug my phone into them it does receive a signal oddly, atleast enough to show the charge symbol. Please help I've tried everything I can think of or google or chat GPT could suggest but I have no money and I'm out of ideas. If there is anything someone can think of I may have missed I am lost and really hopei can get it up and running again. I'm on a extremely tight budget and really can not afford to buy anything at the moment so I'm hoping something stands right out with someone and they can be my savour. Ask for any information you may need or pictures and I'll be happy to send if it helps thank you and hope to here from someone soon.