Ibook not recognizing RAM

ok, so my brothers laptop has the 256 MB built in, then it came with another 256 Stick in it, however, it said that the computer only had 256 (which was the built in), so we replaced the RAM stick with another 256, and it still isnt' recognizing it, still says just 256 built in... what is goin on here?

i know the RAM is good, becuase i bought a new stick for mine (identical laptops) and i gave him my old working one, i just bought a 512 instead of a 256 that it came with, so i am sure that the RAM is good, we don't have a bootable disc, cuz we got em from a school and all they gave us were the laptops and the power adapters. so ya, it isn't really worth it to replace the logic board in them, cuz one of em, the logic board was crap, and so we bought 4 and only have 3 working ones, so, if it is the logic board, consider this question answered.

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Help Ibook not recognizing extra Ram!

Hi, please help, I have just fitted a 1GB ram to my ibook as recommended by the apple genius.
When I click on about this mac it still says 256ram.
Have I done anything wrong? Ive refitted it again and it still doesnt recognize it?
Is there something else I need to do?

bluebubble, Welcome to the discussion area!
Resetting the PRAM has nothing to do with it.
One or more of the following is true:
(1) The RAM isn't installed properly.
(2) The RAM isn't compatible with your iBook.
(3) The RAM is defective.
(4) The iBook's motherboard is defective and not recognizing the RAM.

Ibook not recognizing my digital camecorder

I shot a video for a class project that needs editing, so I hooked the camcorder up to the ibook, and it's not recognizing it, it doesn't know it's connected. what do I do ?

Generally you set iPhoto or Image Capture to launch when a camera is connected. What exactly do you want to happen?

Early 2005 G5 not recognizing RAM, optical door not opening

Hi,
I recently received a Power Mac G5, Early 2005, Dual Core 2.0 GHz, 1 GB RAM, 250 GB HD, running OS 10.5.8.
I decided to invest in this machine, so I ordered a paired 1 GB RAM (for a total of 2 GB RAM) from OWC. Then when trying to install software, I found the computer's optical drive door does not open at all. I could hear the optical drive trying to open but figured it was old and defective/worn out. So I also ordered a new optical drive from OWC. I also made sure to order the correct screws that OWC recommended for the optical drive too, as my original optical drive was a Sony and I saw there are some issues with the screws or height.
I installed the 2 x 1 GB paired RAM, and the G5 is not recognizing the RAM. In System Profiler, the slots show as empty. The RAM did not really click in like other RAM I have installed on my PowerBook G4, my former G3 Beige, and my former Power PC 6100. The hinges on the sides closed but not quite all the way, so I figure OWC sent me the wrong RAM and removed them before RAM issues start. I also noticed the RAM is slightly taller in height next to the original RAM.
The new optical drive installed fine, with the proper screws. However when I try to open it using the "eject" on the keyboard, the optical drive does try to open but the exterior door on the G5 case itself is not opening. It does show up in the System Profiler. When I had the G5 open and no optical drive installed, I doublechecked the exterior optical drive door with my finger, and it would open from the inside of the case poking my finger out, but not from the outside poking in.
Also, I noticed that the Model Identifier doesn't quite match up with the specs at OWC, Crucial, or elsewhere. According to the specs I should have 7,2, not 7,3? I ran the serial number at the Dutch website and also here at Apple, and both have said Early 2005. Is this why I may have the wrong RAM?
Model Name: Power Mac G5
Model Identifier: PowerMac7,3
Processor Name: PowerPC G5 (3.1)
Processor Speed: 2 GHz
Number Of CPUs: 2
L2 Cache (per CPU): 512 KB
Thanks in advance for your help and advice.

BDAqua wrote:
The RAM should fit then, it does snap in, but not always easily!
I couldn't get the last pair in until I laid the box on its side. For some reason, when it was upright I couldn't get the DIMMs to fully engage the socket. Zero insertion force it definitely ain't!
I see the OWC price is now about $3 lower than our local good supplier down here. I'll limp along on what I have in the machine now; it seems to work pretty well and three days after maintenance (DW, of course) and reboot, I still have zero page outs, which is a good sign, I guess.
Message was edited by: old comm guy

Ibook not recognizing external HD

I have an ibook g4 i.42 ghz and a western digital external hard drive that is only about 2 years old. Recently my ibook began to refuse to start up while the hard drive is plugged in via firewire (the hard drive can operate via usb also, but i need those ports for other things and firewire is faster). This had been going on for a while, but just the other day when i plugged in my external my ibook isnt recognizing it at all, even though its plugged in and the power is clearly on. Sometimes it shows up but i cant access any of the files on it, and itunes freezes when i try to open it (my whole itunes library is on the external for the sake of my hdd). I'm wondering if my hard drive has just run its course and is dead (great!) or if my computer is acting up. Any insights are greatly appreciated!
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Hey saturn,
.. western digital external hard drive that is only about 2 years old. .. my ibook began to refuse to start up while the hard drive is plugged in via firewire .. Sometimes it shows up but i cant access any of the files on it, and itunes freezes when i try to open it (my whole itunes library is on the external for the sake of my hdd). I'm wondering if my hard drive has just run its course and is dead (great!) or if my computer is acting up.
Oddly enough I have a WD external FireWire 400 hooked up to my dual 1.2 G4 tower here. It's a 2407A and it's power supply died about a year after I got it. I have it running w/ the supply from an old Mac SCSI external and it's been fine for the last few years but last week it disappeared from my desktop. I looked at the FireWire bus under system profiler and in red letters it said the bus couldn't be read. I immediately pulled all FireWire connections and the profiler went back to normal (nothing connected). I found that the WD was pulling power through the FireWire cable and probably causing that bus to crash. With all cables pulled I shut down the WD external and it's supply. I then restarted the WD external and once it lit up and initialized I plugged it back into the Mac and viola it was there like normal.
So this experience just adds to my negative feelings toward WD and their general wonkyness.
I'd back up your iTunes on another drive.
Also we were talking about this around here a while back and someone said that the average lifetime of a hard drive is 3 - 5 years however a certain percentage of new drives will fail within 3 months. I think the number was 3 - 5%.
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IBook not recognizing optical drivve

Help! My optical drive quit.
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M@TRHHT@ CD-RW BW,8022:
Manufacturer: M@TRHHT@
Model: M@TRHHT@ CD-RW BW,8022
Revision: BA00
Serial Number:
Drive Type: CD-RW/DVD-ROM
Disc Burning: Not Supported
Removable Media: Yes
Detachable Drive: No
Protocol: ATAPI
Unit Number: 0
Socket Type: Internal
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Don

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She took it to an Apple store while in warranty and they changed the hard drive?!
I knew that the communication between the motherboard and the optical disk was broken.
A friend has one and claims if you squeeze the case it will work. He put a C clamp on his to make it work.
My wife teaches at a college and she said that other students have the same issue.

IBook not recognizing AirPort Card

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Are you sure you have a working Airport card?
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http://www.ifixit.com/Guide/Mac/
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You're welcome, gavsten
The only way I know to tell which part is causing the problem is to do the tests.
If you cannot borrow or rent other equipment, you can buy it at any computer or electronics store.
If you do not have local access, the Apple "Store" link at the top of this page offers it via internet.
Please post back if you need more info before you can mark your question "Answered".
Cheers,
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I have a late 2007 Macbook Pro.
2.33 ghtz
500 gig HD
2 gig RAM
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Thank you.

According to MacTracker that is expected. May have something to do with Duo cores, but a 64 bit processor should be able to address all 4 GB and them some, but 32 bit processor can only address a bit over 3 GB even though 4 GB of RAM are installed.

IBook not recognizing battery

My ibook 366 indigo doesnt recognizes its battery, even when its plugged in, I have Mac os 10.3 and updating it to Mac os 10.3.9. Any ideas?

All rechargeable batteries have a finite life and just need careful disposal once they no longer hold any charge (contact your local council about battery disposal).
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kind regards
mrtotes

MOVED: E350IS-E45 not recognizing RAM over 4GB

This topic has been moved to Linux/Unix.
https://forum-en.msi.com/index.php?topic=152229.0

Quote from: Svet on 16-May-14, 02:40:32
you can contact zotac support to check for vbios updates for it
nope, here is user to user forum, for official support: >>How to contact MSI.<<
Thanks for the info. Hopefully I'll be able to track down some help for this one way or another.
Cheers!

IBook TrackPad not recognized in System Prefs?

Hello,
I have the Mid-2005 1.42ghz iBook. It's a great machine that I love except for one thing....the scrolling TrackPad. It does not work and is not recognized in System Preferences. It does not show up under Keyboard & Mouse. I've taken the top-case off to check the cables and they all looked tight and even replaced the top-case with a new one and it still doesn't work. I've used the 10.4.4 Tiger install discs as that is what it was shipped with. I'm out of ideas here and am hoping that someone can help me. I've resorted to using a mouse along side of it and it's aggravating. Please don't tell me "Logic Board Replacement." Thanks!

Hey PM and Cornelius,
Well the first thing that comes to mind is that the track pad, keyboard, power and charger are all controlled by that PMU99 that I've been bugging everyone about.
Here's my other post:
"There's been a lot of problems lately on this group with the above mentioned issues. It could be a PMU problem. The PMU is actually a tiny computer within the computer. It's official designation is PMU99.
http://developer.apple.com/documentation/Hardware/DeveloperNotes/Macintosh_CPUs-G4/12inchPowerBookG4/2_Architecture/chapter_3_section4.html
"Power Control IC
The power manager IC in the 12-inch PowerBook G4 is a Mitsubishi M16C/62F microprocessor, also called the PMU99. It operates with its own RAM and ROM. The functions of the PMU99 include:
*controlling the sleep and power on and off sequences
*real time clock
*controlling power to the other ICs
*monitoring the battery charge level
*controlling battery charging
*supporting the interface to the built-in keyboard ( and trackpad )
The 12-inch PowerBook G4 can operate from a 15-volt power outlet on an airliner, however for safety reasons the computer will not allow battery charging. In order for the computer to detect the connection to airline power, the airline power cable should have a sense resistor of 24.3K ohms connected between the power plug's shell and ground.
The PMU99 also provides the hardware interface to the keyboard. Software in the PMU99 IC scans the keyboard, then sends the data to the system in packets like those from the ADB. To the system, the keyboard behaves as if they were ADB devices"
Try resetting it:
http://docs.info.apple.com/article.html?artnum=14449
If that doesn't work try what I call a deep PMU reset.
Pull all power including the battery, push the power button to remove residual charge in soft start capacitors.
Then walk away from it for at least 10 hours.
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http://www.theapplemuseum.com/index.php?id=30
"Power Macintosh G3/G4/G5 clock/softstart chip: PMU99"
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Richard

Ipod touch not recognized by ibook

When I plug in my iPod touch into my iBook G3 it is not recognized. It works on my Acer running XP

If Clifford has a 1G iPod (likely because he has iOS 3.1.3), the specs say:
Mac system requirements
Mac computer with USB 2.0 port
Mac OS X v10.4.10 or later
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Various Macs
Various Macs
Various Macs

Posted this in wrong area. I've reposted it in the right section. Sorry!

Ibook not recognizing RAM

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