It looks as though my old PC is on its way out. The graphics card is anyway. The computer still boots up, but no signal is going to the monitor. Tried the two different monitors and two different cables. Sometimes it finds a signal and sometimes not. The computer isn't used too much, but I need it for WFH on occasion and the better half plays Age of Empires 3 and similar. Found my original purchase info from way back (2012) and as below:
1 Antec ATX TruePower 750W
1 G Skill 8G(2x4G) DDR3 1600MHZ PC3-12800 CL9(8GBXL) - I may have another 8GB in there but i'm not sure.
1 OCZ Agility 3 120G SATA3 SSD
1 Lian Li Black PC-C60 Domus Series Desktop & HTPC Chassis (USB3)
1 Sapphire HD7850 2G.2G 256Bit GDDR5 PCIE3.0 DVI HDMI 2*Mi
1 Asrock Z77-EXTREME4 Z77/4 x DDR3/2 x PCI-E3.0/4 x SATA3/6 x USB3.0/HDM
1 Intel Core i5 3570K LGA1155 CPU 3.4Ghz 6Mb Cache Ivy Bridge
Question is, is it worthwhile upgrading just the graphics card, or upgrade the important trio of MB, CPU and Graphics card.
Alternative would be to look on gumtree or facebook marketplace for a used PC which would probably still have better specs than this.
Thoughts? don't have a budget in mind, but highly doubt the wife would let me spend much more than $500.
Upgrading the CPU and motherboard (and also RAM, since you're moving to DDR4 memory now) would cost you very close to $500, leaving you with almost no budget left for a graphics card.
If you're 100% sure the problem lies with the graphics card, then it's actually a fairly easy (and cheap) fix, you'd just replace it with a low-end option like a GT1030 ($110 with free delivery @ Mwave) and it's powerful enough to run old games like Age of EmpiresIII.
This is of course, a GPU downgrade, because there's no way you can get an upgrade to your AMD card without blowing your budget. An upgrade might be something like GTX 1650 Super, which is around $450 in today's market. Which isn't really worthwhile if the only game being played is AOE3.