Lenovo ThinkCenter P520 Desktop

Hi, I’m interested but I need to confirm a few technical points first. I hope that’s okay:

Could you send a clear photo of the power supply label showing the exact wattage (e.g. 900W)? And a photo of the PCIe power cables – I need to see if there are two separate 6+2‑pin cables available for a graphics card.

Could you measure the maximum length available for a graphics card, from the rear bracket to the front fan or drive cage? I need to fit a 310‑mm card.

What’s the current BIOS version? Does it have the ‘Above 4G Decoding’ option in the BIOS? (You can check by pressing F1 during startup.)

Has the machine ever had any stability issues, random shutdowns, or fan noise problems? Any reason you’re selling it?

Just to be upfront — are you negotiable on price? My budget is lower because I’d still need to add a high‑end GPU and more RAM for my work.”