its from bestec
Hi again Angel - I didn't find a review for bestec 300w, but they had
a terrible review on an older 250w. Your's might be fine as HP
prob contracted somewhat better specs than the old
250w I found.
MODEL WATTS PROBLEMS AND ISSUES REVIEWS
ATX-250-12E 250 Infamous for frying motherboards. Ancient ATX12V 1.3 design. 5VSB performance is awful. Below average build quality. jonnyGURU
So, use your gpu now, but start saving for an upgrade. You
won't need an expensive PSU, but a 350-430w from a quality brand
will give you peace of mind along with headroom.