Sinbad56

Hi, Looking for some help with the new PC I build. I recently build a new 7900 XTX build which I paired with a Toughpower GF3 1000. The 7900 XTX takes 3x 8 pin PCIe cables but the PSU only came with 2x 2x8pin (i.e., 4 connections total from 2 cables). When i first build the PC, I used 1 cable with 1 connection and the 2nd cable with two connections daisy chained. There didn't seem to be any issues but I'd read not to daisy chain so I ended up purchasing 3x 8 pin connectors from a well know cable modding website, and switched over (I removed the 4 pin CPU connector from the CPU at the same time to free up a PCIe slot on the PSU). Since doing this I keep experiencing random reboots of my pc during gaming. It might be coincidence, but the only thing I can think that has changed was switching out the PCIe cables for the GPU. The cables which I purchased were 'TGL' series which someone has told me are not actually compatible with my PSU. Is that true, and if so, which cables series do I need? Any thoughts or advice would be appreciated. I could switch back to the original cable setup using the vales with came to see if that resolves the issue but otherwise I am at a bit of a loss.