Dave, I don't have much to add to what other folks have said, but... I recently did almost an identical upgrade... swapped out an XLR8 G3 275 daughtercard for XLR8 ZIF carrier with the OWC G4 450 ZIF in a J700. Once I set the switches correctly (I didn't at first), everything worked fine... although hot (sometimes up to 70 deg C).
The problem I had was with the G3 daughtercard I pulled out... I took it and put it in a PowerMac 7300 that I wanted to use as an OS X file server in a small church office network. I put the card in and, under OS 9, experienced many of the same problems you have with your carrier card. I had to tweak the switches forever to find a somewhat, but not completely, stable setting. Stable enough to load OS X using XPostFacto. When I rebooted into OS X, the cache enabler part of the startup (another Ryan Rempel creation) warned about a flaky cache, disabled it, and rebooted itself without the backside cache enabled. The G3 carrier under OS X then ran fine (but dog slow) ever since. I guess my point here is that a processor upgrade that worked flawlessly in one machine for a couple years refused to work properly in a virtually identical machine, for whatever reason. Why not call OWC and exchange the unit for another? They should be pretty cooperative about that. Maybe they'll even loan out an old ZIF (like a pulled 233 from a beige) to let you experiment... Patrick McNamara On Tuesday, December 17, 2002, at 03:11 PM, (SuperMacs List) wrote: > Date: Mon, 16 Dec 2002 20:37:10 -0800 > Subject: [SM] I need HELP! > From: "David R." <[EMAIL PROTECTED]> > Message-ID: <[EMAIL PROTECTED]> > > > Well, here I go again... And things were going so well. > > Several weeks ago I upgraded from my XLR8 G3 300 daughtercard to an > XLR8 zif > carrier with an OWC G3 450 Zif. > > Unfortunately since then I have been having random freeze/crashes to > no end= > . > Initially I thought the crashes were related to my coincidental > install of > the newest IE 5.1.6, but I now don't think this to be related. A > second > possible culprit was that I was using the 9x multiplier instead of 8x > and my > bus couldn't handle it. But I have been using the 8x at 450 for a few > weeks > now and the crashes continue. Crashes are totally unprovoked on my > end, it > freezes if I so much look as my computer in the wrong way, use my > mouse, > click on a link. I just never know when its going to happen. I've got > myself saving at every turn. 15 times so far at this point in the > email. > Its driving me CRAZY. > > There are a few new unusual symptoms I will add here. Not sure if > they are > related though.=20 > > =80 During Cold start, it takes longer than it should to find the > monitor. > Acts as though the memory test is on but it isn't. > > My 'Apple Menu Options Prefs' keep getting corrupted and I throw them > away > over and over. Seems to happen on different drives too. > > It can go all day without a system freeze or it can go 2 minutes. > Usually > happens sooner then later. > > Quicktime also doesn't seem to be acting right. Drives seem to cycle > in > order to play any video. Even to move a window over causes this > cycling, as > if reloading the file each time. Have the latest QT download. > > I am a little concerned that my carrier or zif may be a lemon. I really > hope not. If anybody knows what some of the symptoms of a faulty cpu > are, > let me know. =20 > > I've backed the card back to 448 using switches 1,3,4,5,8,9,10. > I have also gone so far as to reformat my main ide hard drive, Install > a > fresh OS 9.1. Removed a questionable drive to make sure it wasn't > responsible. Done all the usual Cuda, Zap, etc. Checked all cards to > make > sure they are seated properly. Processor card isn't hanging low > either. > Battery is less than 1 year old. All pci cards are in their same > position. > Ran ALL the utilities and repairs appear temporary as problems > continue. > Think I've included everything. > > I'm actually thinking about buying a 300 mhz zif to just rule out > whether > the 450 zif is bad. > > Mission Critical! Looking for ANY ideas, and to everyone thanks. > > Dave > s900, OS 9.1, 656 Ram,=20 -- SuperMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | Service & Replacement Parts [EMAIL PROTECTED] | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> SuperMacs list info: <http://lowendmac.com/supermacs/list.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/supermacs%40mail.maclaunch.com/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
