In all all too familiar tale Ipswich played well, took the lead then committed footballing suicide.
DJ Campbell nudged the Blues into the lead seconds before the break, even though he did use his hand to do it from an Aaron Cresswell cross.
Daryl Murphy headed against a post while exScum keeper David Marshall made a decent save to turn away a JET 30-yarder.
Cardiff got better in the secodn half but neve rreally looked like scoring until Scott Loach made a pigs ear of a cross from substitute Craig Conway and Heidar Helguson tapped in.
Loach was at fault again for Cardiff’s winner when he failed to deal with a cross and Helguson got away from Cresswell all too easily and nodded in.