Bad Pool Header error indicates that some action took place in the memory pool and did not terminate correctly. Review tha Blue Screen pool paramenters and use this link to narrow the error:https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/bug-check-0x19--bad-pool-header Do also run hardware diagnostic within the LifeCycle Controller (LCC). To enter LCC, press F10 during POST. Once the diagnostics fail, determine the hardware component causing the error on this link: https://www5.nohold.net/Dell/Loginr.aspx?pid=3&ruleid=2591&login=1
Something probably got jostled around during transport.
Remove all memory, insert one stick in the first slot to test. Add more sticks until you find the faulty one or the issue is resolved.