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ihor43us
Many thanks to the responses and suggestions. I apologize for not getting the name straight. It is a Mac Pro from 2008. I clean the dust regularly - you don't realize how dusty the house is until you open the case. I also have a 21"? iMac bought at the same time which also exhibits that behavior and is also cleaned regularly. Actually bought 3 and two are over heating. My daughter does not use hers much. The systems are on UPS with surge protection so I think that narrows it down to heat/fans. These fans are speed controlled I believe so the issue could be the fan or the controller. ? Is there anyone here that has replaced either? The sources on Google are non-specific and I do not want to put a non-Mac part in them so I was looking for a link to an inexpensive Mac parts store.? There is the possibility that parts for octogenarian computers are in short supply so the question is will fans/controllers from younger Macs fit? I would think that those parts would be common over many generations. Thanks again for all the answers and apologies for not responding sooner. A site I look after got hacked and I have been up to my hairline in php code delivering eviction notices ....... ![]() |
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Shut Down/Restart Problem
#Mac
开云体育Hello All,I have found one “issue” since upgrading to Catalina and it’s starting to drive me crazy. I shut down my Mac each night before bed. ?I follow the usual sequence of clicking on the Apple icon, choosing shut down, and shut down again. ?About 50% of the time my Mac will choose to Restart instead of shut down….and I have been extremely careful to choose shut down each time. ? It’s really a pain having to wait for it to load up so I can shut it down again. ?It has always shut down on the second try when this happens. Does anyone have thoughts or suggestions about this? ?I would love to find a fix. Thanks for any feedback. Janet |
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Great info, Dan.
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It reminds me of one I solved remotely. It was very rare, and not likely to apply to others. The user lived in Thailand, and his Mac would restart intermittently. He had checked the 3 items Randy listed. He didn't seem to have the power noise we are discussing. He finally disclosed that his outlets did not have a ground, typical in his location. He was using a 3 to 2 adapter. I suggested that he try a temporary ground wire. Not easy in a concrete building. He resisted, but finally tried it. When he did the problem went away. He then had a permanent grounded outlet put in, professionally. Sent from my iPad, Brent On Oct 25, 2019, at 5:29 PM, Daniel Settles <denver1.dan1@...> wrote: |
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Randy B. Singer wrote:
I DO wholeheartedly agree that everyone should have a UPS.??If you experience one nasty brownout with a huge following surge in?power, it will have paid for itself. ?I also note that folks who have USP's?have Macs that tend to be remarkably trouble-free and long-lived. I’ve only gotten CyberPower devices for my full-sized UPS needs for years:
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开云体育
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Howdy.
I'll add to this. I used to visit a private girls school near Middleburg, Virginia, to deal with several Macs. The human buildings were very old with old electricity and no central A/C. The horse barns for the rich girls' own horses were nicer than the dorms or office buildings They moved a graphics design office to a different room then installed a large 110 volt AC window unit on the same circuit as the Mac, printer, scanner, etc., and every time the AC's compressor kicked on the Mac shut down. It took putting in a separate electrical circuit for the AC to solve the problem. I have several 110 volt 20 amp isolated group circuits for my computer equipment. The standard in the USA is a 110 volt 15 amp circuit. My Mac Pro (late 2013, 16 GB RAM, 512 MB SSD, two video cards), with no monitor connected and all externals disconnected, running a heavy load test, draws about 340 watts. Yes, the more RAM you have the more power the computer requires. To figure out watt demand you multiple amps times volts. 20 AMPS x 120 volts = 2,400 watts. 15 AMPS x 120 volts = 1,800 watts. A good recommendation is to load the circuit to about 80% of the maximum. (Most European countries use 220 volt power. In the US, most houses have both 110 and 220 volt with the 220 volt being used for heavy consumption devices like electric clothes dryers, electric ranges, furnaces, but circuits for lights, lamps, standard wall outlets, using 110 volts.) And yes, I have several UPS battery boxes. Northern Virginia is one of the more heavily forested urban areas and we see the tail end of hurricanes, electrical storms, and a LOT of new construction in this area. A typical Brother laser print could draw up to 500 watts when printing and maybe 50 watts in standby mode. Devices with electric motors and heating equipment draw a lot of power. Denver Dan On Fri, 25 Oct 2019 16:22:36 -0700, Randy B. Singer wrote: Here is a personal experience. A law office was having a problem[|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|] iSent from iDan's GyazMail on my MacPro |
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On Oct 25, 2019, at 1:36 PM, Barry Austern via Groups.Io wrote:
Here is a personal experience. A law office was having a problem with their Macs shutting off unexpectedly, usually all at the same time. After some sleuthing, I found that the problem was that they had a refrigerator on the floor in the break room that, when it cycled on, it caused such a sag in power in the office that their Macs just shut off. (Sometimes a large laser printer will cause the same thing to happen when you turn it on.) I purchased APC UPS's for each Mac, and I was shocked to find that the problem persisted. Then I noticed that the APC UPS's didn't include AVR. I returned them all and substituted another brand of UPS that was less expensive, but which included AVR. Problem solved.I would not run a desktop machine without a UPS. You can get a reasonably decent one for $70 or less. When I start my laser printer I hear my UPS click, so I assume that maybe without it my Mac would lose power.1) There is too much current draw on the electrical circuit your Mac My point is that an approx. $70 UPS may be just about worthless. You have to purchase a good one that includes AVR. In my experience such UPS's usually cost over $100. Some UPS's costing over $100 don't include AVR, notably several APS brand UPS's, which is a brand that I don't recommend. I usually recommend CyberPower UPS's: CyberPower 1000AVR ($110) <> or CyberPower model selection tool: However, I DO wholeheartedly agree that everyone should have a UPS. If you experience one nasty brownout with a huge following surge in power, it will have paid for itself. I also note that folks who have USP's have Macs that tend to be remarkably trouble-free and long-lived. ___________________________________________ Randy B. Singer Co-author of The Macintosh Bible (4th, 5th, and 6th editions) Macintosh OS X Routine Maintenance ___________________________________________ |
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Also, it should have some surge protection, and good ones even condition the power. Randy Singer has written about that many times.
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On Oct 25, 2019, at 4:14 PM, Daniel Settles wrote:
Howdy. |
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Oh, I have used MacTracker for 20 years, and I have even donated to him twice.
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On Oct 25, 2019, at 1:32 PM, Barry Austern via Groups.Io wrote:
10.5 is Leopard. Lion is 10.7. Snow Leopard is in between. I recommend a great program, available in the App Store, called MacTracker, which is a data base of just about everything Apple has built. The last PowerPC iMac it shows is the G5 from October 05 to March 06. As you say, the latest it can take is 10.5.8. |
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Howdy.
One should not plug large power-draining equipment like a laser printer into a UPS battery box. A. It's not necessary. One can print when power comes back on. B. The primary purpose of the UPS is to allow enough time to save files and shut down computer when the power goes off. Denver Dan On Fri, 25 Oct 2019 16:36:59 -0400, Barry Austern via Groups.Io wrote: [|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|]I would not run a desktop machine without a UPS. You can get a iSent from iDan's GyazMail on my MacPro |
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Barry, I don't mind be corrected, if done with a little courtesy. I did mislabel 10.5 as Lion, and not Leopard. But your reply was not well received.
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I hate the names Apple uses for the Mac OS. The numbers are much easier to keep straight and even give informations beyond the general OS. I had suggested that the OP might learn the correct description of his Mac. ?I see nothing to suggest even the form factor, or whether or not it is a desktop or laptop. Someone else assumed he had a 2008 Power Mac. Again, my mistake, I attributed the comment to the OP. A post after the one I am replying to guesses that it is a Mac Pro, but again the OP has not told us which form factor. Why do you think it is a iMac, Barry?That it difficult to open a iMac, at the moment, has little or nothing to do with the issue, until we find out the form factor. I relayed my experiences with my MBP, early 2008, for the fan replacement issue. But back to the OP's problem. I assume by reset means that it stops and restarts as the subject line suggests. The model or OS does not really matter. As several have suggested, their is a hardware issue relating to the power supply. Cleaning the dust out will only solve the symptoms, not the issue. The same with replacing a fan, unless the fan is also failing. It would be nice if the OP,??ihor43us, would add some information to this thread. The thread has 14 posts in 24 hours and not a peep out of him. Brent 15" MacBook Pro, early 2008, Mac OS X 10.7.5 Power Mac G4 Quicksilver 2002,?OS X 10.5.8 Mac mini G4 original,?OS X 10.5.8 iPad, 3RD Gen Wi-Fi, iOS 9.3.5 iPhone 4S, iOS 9.3.6 iPhone 3GS, iOS 6.1.6 iPod nano 6th Gen, Software Version 1.2, formatted for Windows, warranty replacement for original Nano iPod Classic, 80 GB,?Software Version 1.1.2 On Oct 25, 2019, at 1:32 PM, Barry Austern via Groups.Io wrote:
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开云体育
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开云体育
There was only one Mac Pro in 2008 able to run El Cap:
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开云体育I would feel insecure with a $70 UPS. I guess our posts passed on the internet, because I just posted about laser printers causing surges. The momentary outage is not the problem, it is the surge that does the damage. And UPSes and surge protectors do weaken with each event. ,? Brent On Oct 25, 2019, at 1:36 PM, Barry Austern via Groups.Io <barryaus@...> wrote:
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To add a little to this, printers, particularly laser printers, create a sudden power surge. Try to place them on a different circuit if possible, had if they are in the same room. Or at least not onto the same UPS or surge protector. It is not common, but large appliances like old refrigeration compressors, air compressors or even washing machines can cause a surge.
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In my area, we have a 50 year old or older underground power lines, and we get many momentary outages or surges each year. My electronics, UPS and surge protectors, and appliances are starting to be affected. The power company is aware of it and supposedly has plans for new lines. I live in the second or third larges city in my state. Sent from my iPad, Brent On Oct 25, 2019, at 12:32 PM, Daniel Settles <denver1.dan1@...> wrote: |
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开云体育I would not run a desktop machine without a UPS. You can get a reasonably decent one for $70 or less. When I start my laser printer I hear my UPS click, so I assume that maybe without it my Mac would lose power.
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开云体育10.5 is Leopard. Lion is 10.7. Snow Leopard is in between. I recommend a great program, available in the App Store, called MacTracker, which is a data base of just about everything Apple has built. ?The last PowerPC iMac it shows is the G5 from October 05 to March 06. As you say, the latest it can take is 10.5.8.? Unlike the earlier beige G5 machines, those with ADB keyboards and mice, and floppy drives, iMacs are a pain to take apart. How much is it worth it to do too much on a 14 or more year old machine??
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Howdy
I'll second Randy's observations. I've dealt with all three conditions at clients. Denver Dan On Thu, 24 Oct 2019 20:40:51 -0700, Randy B. Singer wrote: [|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|][|]The machine is from 2008, but it does all I need it to do. However,In my experience Macs tend to spontaneously re-boot for one of three iSent from iDan's GyazMail on my MacPro |
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Re: Back up of my Mac HD
#Backup
开云体育Thank You , Paul. I found it when I went into the drive. I also found the old folder from my Mac Pro, which I deleted
Jeannie?
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Re: Cost of move to groups.io?
#MacSupportCentral
On Thu, Oct 24, 2019 at 03:53 PM, DaveC wrote:
DaveC This topic has been hashed over and over for the past couple of weeks. I'm sorry my answer of "No" was so curt. It's been asked and answered a few times. Anyway, if you would like to be a moderator and point out every time someone doesn't add a quote in their reply we could add you as one of our moderators. If you're interested, email [email protected] and make that a request. Dave |
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