on 11/12/02 5:53 AM, [EMAIL PROTECTED] at [EMAIL PROTECTED] wrote: > Be careful of running Gauge Pro with all of your RAM slots filled with 128MB > sticks, it will cause the machine to crash (not sure why- but has been > verified by myself and several other list members in the past). Not sure if > this also happens in TTPro as I don't have a recent version, but know that > the XLR8 PowerControl utility is fine in this regard, so used it mostly to > test my S900s full of RAM. Unfortunately though XLR8's software is not > freeware/shareware and only comes with one of their upgrades. > > While I am on the topic I have two full complements of 128 MB RAM for my two > S900s, all from OWC. One set is all EDO and one set all FPM. One machine > runs fine with either set or mix thereof and tests the RAM as fine for all > sticks (using the RAM sandwich rotation) and 24 to 48 hours of testing each > time with XLR8 PowerControl. The other machine, will run fine and test the > RAM fine with any of the RAM test utilities with any 7 sticks from any set, > but put in an 8th stick from either set and it freezes just after startup, > before even running a RAM testing utility (OS 9.1, as on the other S900, > even tried swapping identical startup HDs and PCI cards between machines and > even running with just the video card and no other PCI cards in). Doesn't > seem to be specific to the last RAM slot either, as rotating any 7 sticks > around any of the RAM slots causes a functional non-crashing S900, that > tests all of the RAM fine with the utilities as long as there are only 7 > sticks. This one has had me puzzled for a long time, but just put it down > to the individual quirkiness that seems to be a part of these machines. > Would be nice to work out why, but has taken more time than its worth > already plugging, pulling and testing. Any novel ideas welcome, though. > > Cheers, Pete. > <[EMAIL PROTECTED]> > >> Date: Sun, 10 Nov 2002 16:21:59 -0800 >> From: Howie S <[EMAIL PROTECTED]> >> Subject: Re: [SM] Memory questions >> >> on 11/10/02 2:44 PM, Gregg Gorrie at [EMAIL PROTECTED] wrote: >> >>> After the recent posts regarding RAM/RAM testing, I decided to test my RAM >>> using TechTool Pro 3. Two evenings in a row I have run a full test >>> overnight, and both times I have awoken to find the machine locked up about >>> 70-80% through the Minor March test. Only a "hard" boot will revive the >>> machine. I did another test with everything checked *except* Minor March and >>> Major March tests, and everything passed OK. As an aside, I tested this RAM >>> with Ramometer several months ago and it passed through several thousand >>> iterations without a problem. >>> Any thoughts on this? >> >> TechTool could've crashed for other reasons than bad memory, but perhaps it >> would be a good idea to test it with the latest version of Gauge Pro. I >> realize it's just a another build of Ramometer, but it may be newer. You can >> get it here... > sounds like bus loading, i think there is something in a s900 datasheet some place, that states they missed the term resistors off the bus to save money, and the capacitance of memory boards causes ringing of the bus. steve
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