The HP EliteDesk 800 G1 TWR is a Haswell-era tower on LGA 1150

The G1 TWR uses an LGA 1150 socket with Intel’s Q87 chipset, supporting 4th Gen Haswell processors from Core i3 through i7, plus Pentium and Celeron variants. Haswell is nearly a decade old now, so this is strictly a budget or legacy system — but the Q87 chipset did bring business features like vPro and AMT that enterprise buyers still care about.