MacBook Pro :: Which PRAM Battery Suitable For G4 PB (A1106)
Oct 19, 2009
I think my PRAM battery is dead (date resets to January 1st 1970 when started up with main battery removed) but I can't find a replacement PRAM anywhere (I'm in the UK). According to iFixit the part number is 820-1686-A - is this the only PRAM module that will work in my machine? (I've seen lots of other similar looking parts on eBay, but with different part numbers). Also, is it not possible to actually just replace the battery, not the whole circuitboard? It looks like a regular watch battery I could pick up for $5 from the pic.
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Dec 10, 2014
I have a macbook pro that is simply dead. I have tried an SMC reset, a PRAM reset, and I bought a new battery. I see the green lights on the back of my battery and the power cord is an apple cord that appears to be just fine. I have also tried to power on the computer with the power cord plugged in but the battery out.
Worth noting that I do not hear any fans, any clicks, or *any* indication that the computer is trying to power up. The only signs of electricity are the green lights on the battery and the small charging light one sees on the cord when plugged in to the computer.Â
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Jul 28, 2008
one of my Al Powerbooks decided to kernel panic twice in the past two days and both times fail to start up afterwards. The symptoms would be that when I pushed the power button, I wouldn't hear the Apple startup sound and it would just sit there.
Well, after a few tries and some sadness, I decided to remove the PRAM battery card and voila, computer boots up perfectly! This has actually happened twice (removed PRAM card, booted up, then put PRAM card back in, then eventually exact same situation occurred again), does anyone know if a PRAM battery card can possibly wreak suck havok on a G4 running Leopard.
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Apr 4, 2012
Now normally I wouldn't expect it in an under 4 year old machine, but the normal battery is working as expected. However, when I'm not plugged into power, my WiFi doesn't always reconnect, and when it does, the internet doesn't seem to connect either 90% of the time. When I'm plugged into power, no problem. 3 other machines on the same wireless network have no issues with it, though my cable company says they are detecting intermittent signal loss, which I can't reproduce on any other machine. The other reason I believe it is the PRAM battery and not the main battery, is during one reboot, the date reset itself to year 2000. Once I managed to reconnect the internet, I was able to set the date & time to the time server.
Info:
10.7.1 iMac 5,1 MacBook Pro 3,1, Mac OS X (10.7.1)
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Apr 3, 2012
How do you locate and/or change the PRAM battery in an iMac G5 (iSight)?
Info:
iMac, Mac OS X (10.5.8), PPC, 20", G5
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Jun 22, 2007
My Powerbook will not power on. I have followed some instructions on disconnecting the PRAM battery and that did not work, any ideas? I just stopped coming on without any explination.
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Apr 22, 2010
Under 500 dollars, which is the best SSD with garbage collection and will not degrade performance over time? Im looking for 150GB+
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Sep 14, 2010
I'm a graphic designer looking for a new home office computer. I work in print media mainly, using CS5 (Photoshop, Illustrator and InDesign), and have been considering the Macbook Pro 13" for its combination of performance and portability; a 24" monitor will be connected to the MBP. I could go for the Macbook Pro 15" for better performance but I really like the portability factor. So my true question is: Is the Macbook Pro 13" suitable for this type of work?
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Jan 12, 2011
Basically I can't decided between the 11 inch or 13 inch Air and thats due to the fact of not having any idea if the 11 inch will be capable of handling the tasks that I need. I have a ton of 1080p/720p mkv movies that I always watch on my current early 2006 macbook, that's a must do for my upgrade to an Air. The second part of what I will be doing is having a dump site for my pictures.
I have a T1i and take a ton of photo's nothing professional or anything, but as a poorly touched hobby. I have been considering using iphoto/Aperture since its only 79.99 in the new app store. I am just slightly concerned if the little 11inch can handle simple aperture photo edits, to fix crappily taken photos. The ability to play my movies is the most important issue, the whole picture thing can be sorted out on the Quad core Pc in the office.
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Apr 5, 2012
im a graphic designer and I want to buy one of these Which do you think is better 1.macbook pro 2.66 Ghz Intel Core 2 Duo 4 gb ram NVIDIA 9400 and NVIDIA 9600 GT dual graphics 2.macbook pro 2.4GHz Intel Core i5 4GB 1066MHz DDR3 Intel hd Graphics5 and NVIDIA GeForce GT 330M dual graphics
Info:
MacBook
Pro
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May 3, 2012
I have MBP that has 2x 2G DDR3 1067MHz memory installed on it, I would like to upgrade them to 2x 4G, but I'm not sure what to buy. are memories for Macs, Mac specific? or I can use any standard laptop RAM?
Info:
MacBook Pro (17-inch, Mid 2010), Mac OS X (10.6.8), Magic Mouse, and airport express
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Jun 9, 2012
I want to learn Objective C through Xcode but I cannot find an appropriate version of Xcode for snow leopard 10.6.8
Info:
MacBook (13-inch Mid 2010), Mac OS X (10.6.8)
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Mar 16, 2009
Someone I know wants to buy a macbook air. I've replaced hard drives on Sony's, lenovos, macbooks etc. But I know some Sony's come with special "non-standard" drive sizes. Does anyone know if the Seagate Momentus laptop drive will fit in the newest macbook air? I saw on anandtech you could replace it on the previous model but I thought I'd double check as she needs much more space than 120GB that apple offers.
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Mar 1, 2010
With the early uMB 2.4 do you have to zap the PRAM after you upgrade your HDD? if so how do you do this?
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Aug 9, 2009
I have already covered these steps:1. I have tried a safe boot. 2. I have tried to reset the NVRAM and the PRAM.3. I have tried to reinstall OSX from the Install Disk.4. I have tried to repair the HD and tried to repair permissions using the Disk Utility. he issue started out as the flashing Apple/Question Mark Folder/"No" sign. I attempted to follow the steps on the Mac Support Forums (ones listed above) and the issue developed into the picture shown.
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Mar 6, 2012
I have a MBP 13inch from 2011
recently i zapped my Pram becuase i was having trouble with a external screen but when I turned it on again the screen when to the grey screen with the apple logo and spinning gear but after 2 hours of wating the screen is still the same. What can i do to get back onto my mac?
Info:MacBookPro, Mac OS X (10.6.8)
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Mar 28, 2012
I cannot reset my computer’s PRAM anymore. What can I do to fix this myself?
Info:
MacBook, Mac OS X (10.6.8), Purchased September 20, 2008
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Jun 5, 2012
Is it ok to have a PRAM and NVRAM reset two times a week?
Info:
MacBook Air, Mac OS X (10.7.4)
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Dec 8, 2014
My MacBook Air has required a PRAM reset twice recently. Why is this? What can I do to prevent this?
Info:
MacBook Air, iOS 8.1
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Sep 7, 2014
I have inadvertently left my 2011 MBP running with a processor intensive music app running. The battery ran out before i realised.. When i attached the power lead to charge it, the computer automatically restarted without even pressing the power button. The computer had not entered safe sleep mode, presumably because my music software was still running.Â
Since then the computer will not ever enter safe sleep when the power runs down. The battery just cuts out each time when it drops to less than 5%, it does not run out at 0% like it usually does. if it is the logic board battery because i have had this issue a couple of times before but it rectified itself after a few days. I have checked that safe sleep is enabled which it is, but the computer just cuts out before safe sleep kicks in.
Info:
MacBook Pro (13-inch Early 2011), OS X Mountain Lion (10.8.5)
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Nov 2, 2009
I have a February 2008 MBP and am having issues with keeping it asleep. I currently have it set up as a desktop connected to an external monitor, keyboard and Magic Mouse (along with a variety of other peripherals) and I've recently noticed this issue. I'm running 10.6.1, I have tried everything from resetting the PRAM, SMC and repairing disk permissions to even installing a clean copy of Snow Leopard and restoring from Time Machine backup.
For power management, I have it set to never sleep, since I manually set it to sleep and don't want it sleeping on me when in use. I also have Wake on LAN activity disabled. Yet when I set it to sleep, at approximately noon the next day it wakes up by itself. I've even turned off the Magic Mouse to make sure it wasn't being moved by vibration and waking up the Mac. I'm completely stumped!
For troubleshooting purposes, I've installed a clean copy of SL without restoring TM backup to see if it's a program that's causing this issue or if it's a problem with a peripheral. I've yet to check back on it as I'm at work, but I'm hoping it's just software related. I'm at a loss as to what to do.
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Mar 12, 2012
when i do a PRAM reset, they will prompt me for a password or serial, may i know what password or serial is that?
Info:
MacBook Pro, Mac OS X (10.7.3)
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Dec 2, 2014
Recently my MacBook Air has failed to wake from sleep mode. The Apple illuminates on the back of the screen casing, but neither the screen nor hard drive actually wakes up. The only way I'm able to use the computer is by forcing a PRAM reset on restart (command-option-P-R). I've had to do this several times in the last two weeks. Â
The only things about my MacBook Air that have changed in that time period are:Â
- I installed OS Yosemite
- I installed and ran Sophos Anti-VirusÂ
(The latter was installed to counteract a problem that I was having with my email address having been spoofed and sending spam. Sophos found two bits of malware in email data files and "cleaned" them up.) Â
Info:
MacBook Air, OS X Yosemite (10.10.1)
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Mar 5, 2008
I am looking to upgrade the RAM in my Mac Pro (Quad 2.66GHz) but the prices (even Crucial) are a bit out my league at the moment. However I was doing some surfing tonight and found these: [URL] Would these be suitable, the price looks pretty good and it would give my Mac a much needed boost.
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Aug 22, 2010
Today I noticed that my mid 2010 MBP is not automatically sleeping. I ran Apple's extended hardware test, along with TechTools Pro 5 from AppleCare disk. Both passed. Reset the SMC and PRAM. I'm still not able to auto sleep. Is there a way to see what exactly is causing my computer to not automatically sleep? Console messages or something?
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Dec 30, 2009
Which Enclosure and HD for my iBook G4? I need to find a good enclosure and HD to use with my iBook G4. I'm running Tiger, OSX 10.4. I need to use the external HD to boot the computer, and also need two Firewire and one USB connections, so I can connect other external drives.
I've been using this enclosure: Rosewill RX30-U2FA Aluminum 3.5" USB 2.0 (USB1.1) 1 port (4pin) FireWire 400 (1394a) 2 ports (6pin) External Enclosure
with this HD: HDD 300GB MAXTOR 16M ATA133 7L300R0 for over four years.
I need a new external HD, because our neighbor was messing around with the circuit breakers and flipped the switches, which cut our power and damaged my external HD!
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May 21, 2012
I am looking around for a reasonably priced PC monitor to use as an extended desktop/palette monitor for my iMac 27".I have a range of video adaptors so should be able to connect to most cables but it seems that PC monitors these days come with VGA/HDMI connectors and I am not finding many with DVI which would be my preference. I understand HDMI is basically for TV/Video connections, how good is it for a computer display?
Info:
iMac, Mac OS X (10.7.3), The closest you'll ever get to there, is here.
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Jul 9, 2009
I recently purchased a 13" 2.26 stock macbook. It's perfect, screen is good (no scrolling issues or purple blues) with no dead pixels, no slanted keys, and no scratches.
I updated the firmware that addresses the SATA 1.5 issue. After the update, I reset PRAM. I held down the buttons till I heard the second or third startup bong.
Here is where it gets funny.
Now, when I reboot or start up my computer, the start up noise is loud. Even with headphones plugged in and also the volume turned to its lowest setting (even with volume turned off). Eventually, to control the startup noise, I had to install the startupsound program in my system prefs as mentioned on other threads and that has seemed to control the startup sound.
I was wondering, if by resetting the PRAM if I have harmed my computer in any way. Should I be worried about deeper issues with my computer since the startup sound was not previously being affected by reducing the volume to zero with headphones plugged in?
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Apr 29, 2012
Firmware password will not reset. Resetting PRAM fails. Resetting NVRAM in Open Firmware fails. Resetting PMU fails.
Info:
MacBook Pro, Mac OS X (10.7.3), (MacBook pro 8,1)
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May 18, 2012
I have tried SMC and PRAM resets, and the issue has not been resolved. My magsafe is lit up with a bright green led. Battery status is "Not Charging." When I unplug the magsafe, the system immediately shuts down. Battery is brand new with only 2 cycles. While I can use the laptop with power connected, this is an issue that needs to be corrected asap, as I use this computer for performances consistently and if the power cord gets removed, I'm not in a good place.
Info:
MacBook, Mac OS X (10.6.8)
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