The BST General Internal Medicine curriculum is the published blueprint for all three parts, so use it as the checklist rather than a syllabus. Part I is around three quarters clinical medicine and one quarter basic and clinical science (physiology, biochemistry, immunology, genetics, statistics, ethics); Part II Written drops the basic science and uses longer vignettes with data and image interpretation. There is no negative marking, so answer every question.
RCPI runs a short online MRCPI General Medicine Skills Course on Brightspace covering exam structure, sample SBAs with feedback and video guidance on the long and short cases. Most Irish candidates use MRCP(UK) style question banks for the written parts, since the SBA format and content overlap heavily, and mock long and short case practice with registrars or consultants on the ward for the Clinical. RCPI's own limited attempts policy notes that candidates who resit without at least three months of additional experience are unlikely to pass, which is a reasonable guide to spacing attempts.
All written parts are delivered by remote invigilation through TestReach: you need a single occupancy room, one screen, webcam and a stable connection, and you must complete the device check and book a start slot at least 72 hours before the exam.