An update I read something about dust affecting electronics particularly ram chips, so I pulled the graphics cards and ram cards and gave all a good vacuum and wipe
I also read that there are 2 buttons on a logic board - a reset and a diagnosis button https://forums.macrumors.com/threads/buttons-on-mac-pros-logic-board.924495/ https://www.ifixit.com/Answers/View/363232/Mac+Pro+not+powering+on Pressed reset button and then put graphic cards and 1 ram riser card back plus put hd 's in different trays. Rebooted into Mac OS 10.5 on hd2. Plugged in my lion installer USB stick and started process of reinstalling on hd 1 Took like 90 mins and it rebooted into lion on hd1 - yippee Now I'm downloaded 10.7.5 combo client update( 1.9 GB) Hopefully all will be okay ! Sent from my iPhone > On 21 Mar 2018, at 9:49 am, gary dorn <[email protected]> wrote: > > Howdy > Yesterday my macpro 1,1 os 10.7 had a freeze - the 2nd screen got thin red > lines running across it in both directions - diagonally I think > Upon force restart I got blinking white start button- hmm I understand that's > a ram error > > Sorted out blinking white light by removing ram chips and then progressively > reinstalling in pairs - > > Upon restart boots to grey screen > > Can reboot into 500 GB 2 nd hardisk ( os 10.5.8) > > Other combinations- > Safe mode- shift key ( gets to about 25% left overnight > Recovery - r key > D key > Option shift P R keys > > All Get grey screen freeze > > Can boot into system select - option key > Shows hd 1 - 1 tb OS 10.7 > Hd2 - 230gb is 10.5.8 > HD recovery > Backup efi ( time machine disk ?) > Lion efi ( when USB Instsller stick plugged in) > > Except for hd2 all seem to get stuck in a loop of grey screen > > I removed hd1 and plugged it into MacBook and did hardisk check via disk > utility - says all is okay (65 GB free) > > Does this likely mean the OS lion is corrupted and needs reinstalling > Can I reinstall lion via the MacBook ( I have new tech USB drive adaptor > set).? > > Also I gather I need another hardisk - can I use a WD drive from an external > hardisk, or do I need to buy an internal sata drive? Or an ssd! > > Appreciate any advice. > > Specs are > 2006 macpro 1,1 > Hd1 935 gb Mac is lion 65gb free > Hd2 Mac OS leopard 232 gb 18gb free > Ram - 2x 512, 2x 2, 2x 4=13 gb > ATI Radeon hd5770 slot 1 > Nvidia gforce 7300gt slot 4 > 2x 23" Apple cinema displays > > Chow > gary dorn > > Sent from my iPhone > -- The WA Macintosh User Group Mailing List -- > Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> > Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> > Settings & Unsubscribe - > <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>
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