The > is the advisory, so information only on the 744 but you still have to get the info from the QRH but usually no action required.
744 EICAS
ABCDEF = Checklist (mostly)
> DEFGH = Advisory (mostly > HYD QTY LOW 4 has a checklist pre mod)
777/748 EICAS
[] ABCDEF = Checklist (ECL)
DEFGH = Advisory
I'm not 100% but I believe Boeing may offer an option in the future to make the 744 EICAS indicate like the 777/748 and drop the >, ie
[] ABCDEF = QRH Checklist
DEFGH = Advisory