A process for upgrading residuum hydrocarbons, the process comprising: contacting a residuum hydrocarbon fraction and hydrogen with a first hydroconversion catalyst in a first ebullated bed hydroconversion reactor system at a reaction severity of 5,600 °C-MPa-hr (105,000 °F-Bara-hr) to 24,000 °C-MPa-hr (446,000 °F-Bara-hr); recovering a first effluent from the first ebullated bed hydroconversion reactor system; solvent deasphalting a vacuum residuum fraction to produce a deasphalted oil fraction and an asphalt fraction; contacting the deasphalted oil fraction and hydrogen with a second hydroconversion catalyst in a second hydroconversion reactor system at a reaction severity of 11,500 °C-MPa-hr (215,000 °F-Bara-hr) to 40,300 °C-MPa-hr (755,000 °F-Bara-hr); recovering a second effluent from the second hydroconversion reactor system; and fractionating the first effluent from the first ebullated bed hydroconversion reactor system and the second effluent from the second hydroconversion reactor system to recover one or more hydrocarbon fractions (48, 50, 52, 54, 56, 58, 60) and the vacuum residuum fraction in a common fractionation system; contacting the asphalt fraction and hydrogen with a third hydroconversion catalyst in a third hydroconversion ebullated bed reactor system at a reaction severity of 13,500 °C-MPa-hr (255,000 °F-Bara-hr) to 47,000 °C-MPa-hr (880,000 °F-Bara-hr); recovering a third effluent from the third hydroconversion ebullated bed reactor system; and fractionating the third effluent from the third hydroconversion ebullated bed reactor system to recover one or more hydrocarbon fractions (26, 28, 30, 32,34,36,38), wherein the first and third ebullated bed hydroconversion reactor systems (42, 70) comprise one or more ebullated bed reactors, and wherein the second hydroconversion reactor system includes a second ebullated bed hydroconversion reactor system comprising one or more ebullated bed reactors. contacting a residuum hydrocarbon fraction and hydrogen with a first hydroconversion catalyst in a first ebullated bed hydroconversion reactor system at a reaction severity of 5,600 °C-MPa-hr (105,000 °F-Bara-hr) to 24,000 °C-MPa-hr (446,000 °F-Bara-hr); recovering a first effluent from the first ebullated bed hydroconversion reactor system; solvent deasphalting a vacuum residuum fraction to produce a deasphalted oil fraction and an asphalt fraction; contacting the deasphalted oil fraction and hydrogen with a second hydroconversion catalyst in a second hydroconversion reactor system at a reaction severity of 11,500 °C-MPa-hr (215,000 °F-Bara-hr) to 40,300 °C-MPa-hr (755,000 °F-Bara-hr); recovering a second effluent from the second hydroconversion reactor system; and fractionating the first effluent from the first ebullated bed hydroconversion reactor system and the second effluent from the second hydroconversion reactor system to recover one or more hydrocarbon fractions (48, 50, 52, 54, 56, 58, 60) and the vacuum residuum fraction in a common fractionation system; contacting the asphalt fraction and hydrogen with a third hydroconversion catalyst in a third hydroconversion ebullated bed reactor system at a reaction severity of 13,500 °C-MPa-hr (255,000 °F-Bara-hr) to 47,000 °C-MPa-hr (880,000 °F-Bara-hr); recovering a third effluent from the third hydroconversion ebullated bed reactor system; and fractionating the third effluent from the third hydroconversion ebullated bed reactor system to recover one or more hydrocarbon fractions (26, 28, 30, 32,34,36,38), wherein the first and third ebullated bed hydroconversion reactor systems (42, 70) comprise one or more ebullated bed reactors, and wherein the second hydroconversion reactor system includes a second ebullated bed hydroconversion reactor system comprising one or more ebullated bed reactors.