Xref: utzoo comp.sys.mac:26427 comp.sys.mac.programmer:4383 Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uflorida!ukma!rutgers!att!mtune!petsd!hill From: hill@petsd.UUCP (John S. Hill) Newsgroups: comp.sys.mac,comp.sys.mac.programmer Subject: Re: Mac Plus Memory Upgrade Message-ID: <1458@petsd.UUCP> Date: 8 Feb 89 20:09:53 GMT References: <14377@cup.portal.com> Reply-To: hill@petsd.UUCP (John S. Hill) Distribution: usa Organization: Perkin-Elmer DSG, Tinton Falls, N.J. Lines: 27 In article <14377@cup.portal.com> David_Anthony_Guevara@cup.portal.com.UUCP writes: > >I have just upgraded my Mac Plus memory to 4Mb. When I start >it up, it seems to take about 5-10 seconds before it goes out >to my hard disk and procedes with the boot. Is this normal? Yes. Don't worry about it. Upon powering up, the computer goes through a RAM test. It's taking longer now because there's four times as much memory installed. It has always been testing memory - it's just that 1mb tests faster than 4mb. The memory test is only executed upon power up (or sometimes after a particularly nasty system crash). Memory is not retested every time you select restart from the special menu or hit the restart button on the programmers switch. Incidentally, if the test encounters bad memory, you'll get a 'sad mac' with a number underneath. You can look up this number in IM (off the top of my head I don't recall which volume and what status codes are affected) and it'll tell you which is bad. I wouldn't worry too much about bad RAM, though. -- -- -- | | --- ----- --- |\ | ---- ---- ----- | | | | | |___ | |___| | \ | | __ | __ | | | | |___| ____| | | | | \| |____| |____| | ...there is no substitute (except a ZR1 'vette!) John S. Hill -- UUCP: {princeton,att,decvax}!petsd!hill