Power Mac MDD G4 1.25 Ram Upgrade Question

Since there are 4 slots, do I have in install 4 sticks of 512mb RAM, or can I just do 2 1GB sticks? Or can I do any combination?
(2) 512's and (1) 1gb
Thanks.

Hey t.e.r.,
So first off, is it a pretty fast computer?
Well it's not an dual Quad 3.0 GHz but it's fast enough and it's rock solid. I use it as a work horse and have two internal hard drives and 2 on FireWire with a total of around 10 partitions. I'm often working with 9 or so windows open at one time. It did get slow with around 300 items on the desktop so I jammed that into a folder and it's a lot faster.
And second, does the upgrade of ram beyond 1gb make a significant difference?
Well when I'm doing stuff like making a clone and working with a lot of windows open I need as much RAM as possible.
The only problem with these machines is they sometimes throw a power supply and even now replacements are expensive.
Richard

Similar Messages

Upgrading a power mac mdd

I recently purchased a power mac mdd dual 1ghz processor. I'm trying to install 2 additional hard drives to no avail. I dont have the additional bay which is located under the optical drives is there away I could purchase one or some how work around not having this bay? Also I can not remove the bay which houses the original hard drive. I'm seriously stuck any suggestions

When it comes to the drive bay which houses your current hard drives, there should be a white plastic catch on one side. If you lift this the drive bay carrier should lift free.
As for your drive bay under the optical drives theres little you can do but buy a new drive carrier in think. Here is the link to purchase one though this is UK so im not usre whether it will suit your needs.
http://www.applemacparts.co.uk/store/productinfo.php?cPath=7445_7475_7601_7602&productsid=64530
The price is quite steep sadly because i think its a case of they have it and you want it so they can charge what they like. Other than that theres one going on ebay.com substantually cheaper here:
http://cgi.ebay.com/Hard-Drive-Carrier-for-PowerMac-G4-MDD_W0QQitemZ130116985516 QQihZ003QQcategoryZ51035QQrdZ1QQssPageNameZWD1VQQcmdZViewItem
When installing your drives make sure they are setup for 'cable select mode'
this is very important as if they are not it can cause all kinds of problems. This is dont by changing the pin jumpers on the drive which should have instructions on it as to what pins do what.
If your Powermac hasnt had drives in the lower bay before make sure you reset the PMU after you have installed them otherwise they wont mount, or thats the problem i found anyway. This will reset your date and clock so you will have to correct those when you power up but it more importantly resets the power management so you hard drives wil power up. Instructions on how to do this can be found here.
http://docs.info.apple.com/article.html?artnum=95037
Hope all of this helps
Tom

Power Mac G5: A common dilemma: to upgrade or buy new

I know there are a lot of discussions on this topic going around, but everyone's needs and uses are different, so I'd appreciate any input on my situation.
I own a Dual 1.8 GHz Power Mac G5 with only 1GB RAM and a failing 160GB hard drive.
At this point, I basically only use this machine for web browsing, iTunes, and Garageband, and am running Tiger.
I had been having some major hard drive problems so I wiped my system and re-installed Tiger , importing everything from my iBookG4 (which, I recently dropped and the screen connection has failed and is unusable except for as an external hard drive in target disk mode. it is probably too expensive to fix for what its worth so I will probably try to sell it for scrap).
Anyway, everything was ok for about a week until I opened firefox and noticed all my settings and bookmarks were gone. When I restarted my computer, my music, pictures, documents, and movies folders were all unable to be located (although my applications were fine and my hard drive still showed that the space was the same). I'm not sure if I imported some problem from my iBook or if my hard drive was just messing up again, but I've decided that I either need to upgrade or get a new computer.
Basically, I am thinking about upgrading my memory, getting a new hard drive, and upgrading to leopard (mostly for time machine). Or, possibly getting a new iMac or waiting a bit and then getting a new iMac or even (gasp) a PC (highly unlikely).
I was going to get the memory from ramjet and I was thinking of only adding 1GB to make 2GB but could be persuaded of getting more but 400Mhz DDR memory is a bit more expensive than other types. As for the hard drive, I was thinking about getting a Seagate Barracuda 7200.10 SATA 3.0Gb/s 320-GB Hard Drive with a 16 MB cache. I could pay $15 more for a 500GB with 32 MB cache but i really don't need the space and am unsure whether the cache will really help much. Seagates used to have a pretty good rep I thought, but now they seem to be getting mixed reviews, so I don't know.
Obviously, I am no computer expert, so any help would be great. Would it be worth it to spend between $250 and $325 to get the memory, drive, and leapord when I could maybe sell my G5 and my 23" apple cinema display (the old clear kind) and get an iMac? I could maybe get about $700 - $800 for the G5 and around $300 - $350 for the display. Will an iMac be faster than my G5 with the upgrades? I don't think I need a mac pro for my current uses.
Thanks for your help. Feel free to offer advice on what to do with my iBook too.
-rhineth

Memory: $60 for 2 x 1GB, I'd call that very affordable.
http://eshop.macsales.com/item/Other%20World%20Computing/3200DDR2GBP/
Disk drives: 2 x $69 for pair of WD Caviar 640GB
http://eshop.macsales.com/item/Western%20Digital/WD6400AAKS/
It is not about capacity as much as speed and quiet, cool, and how well it handles OS X. I use half the drive, other half is unformatted free space. I'd skip the Seagates. 7200.11 is current.
I expect new iMacs in '09 as they are overdue.
Hard drives you keep or put in FW case.
Current Leopard is 10.5.4 DVD but would be nice to see another DVD now with 10.5.6, $109 (Amazon, maybe less Newegg?).
iMac vs others:
http://www.macworld.com/article/133467/2008/05/imaccomparison.html
http://www.barefeats.com/harper7.html
http://www.barefeats.com/imp02.html
Sounds like three things you may not be doing or have:
SuperDuper for backups. You don't need Leopard.
Disk Warrior. Everyone, or I should say "HFS+" needs #1 disk repair utility.
Backup drives. Two backup sets you switch between, and a small "emergency" partition on one for running Disk Warrior and such.
I replace or move older drives to backup use and put new boot drive in on a yearly basis. Some new drives and memory should be all you need. A couple people even stress their system with graphics and video, and upgrading to 3 or 4 new drives revived their system so that they could hold on and wait another year.

Can a power mac G5 ver.10.4.11 upgrade to Leopard 10.5

can a power mac G5 ver.10.4.11 upgrade to Leopard 10.5

Yes, but you will have to find an installation disk some place like Amazon or eBay, Apple no longer stocks it.
Be sure to buy a retail version, black face with large silver X, and not the machine-specific grey face disk.

System disks for my power mac mdd g4 1.4 dual processor

i bought this power mac mdd g4 1.4 dual processor off from craigslist,no disks at all he didn't have them,so where can i get the installation disks?

Apple's Customer Service sometimes has OEM disk sets for older machines.
www.apple.com/contact/
Chances are slim, though, that they would have them for a machine that old.
You can find retail disk sets for older OS X versions at places like HarcoreMac, but their prices aren't cheap. EBay and CraigsList are other possibilities.
Your G4 MDD dual 1.42GHz machine is termed the "Power Mac G4 (FW800)" model by Apple. It originally came with OS X 10.2.3. It's max OS is OS X 10.5.8, the one apparently on it now.
Since the machine is running OS X 10.5.8, you should probably seek a retail OS X 10.5.x (Leopard) version.

Another RAM upgrade question

Hi everyone,
I know there seems to be lots of RAM upgrade questions here but hey thats what forums are for.
I'm looking to upgrade my macbook's RAM it's currently got 2GB (2x1GB)
Is it possible to purchase 1x4GB and put that with one of my current 1GB sticks to create a total of 5GB?
I would be interested to know if this is possible or if anyone has tried it.
Thanks in advance
Scott

This will work if your MacBook is late '07 or newer.

Upgrading Power Mac G5 Dual 2.0 Ram/Video Card/Hard Drives

Hi there,
Ok so I am an avid Mac user, but have neglected one of my machines lately. This old Power Mac G5 just pushed the 3 year mark and I had a bunch of repairs done to it (New Logic Board, Hard Drive, Power Supply) before the Apple Care ran out. I used to do all of my editing and stuff on it but haven't had time this past year so it has just sat here and not gotten any use. I felt as if it was time to get back in the game so I picked up another Apple 20" monitor, some M-Audio studio monitors, a 11" Wacom, but feel the machine is too outdated to do anything.
Ok first off, I am looking to upgrade from the four 256 sticks (1GB) that I have in my computer with some 2 2GB kits (1GB x 2) (4GB total) and have been looking at the ram that Crucial suggests for this machine (8 Slots). Is there anything that I should look for in ram that will help me get through all of my 3D motion design faster (HD Final Cut too). I don't know a lot about ram when it comes to buffers and such, just how to buy compatible ram. Any suggestions?
Second I am looking to upgrade my video card. I currently have the GeForce FX 5200 with 64 MB of VRAM, which is completely unacceptable. I am looking for a card that can handle all of my motion work along with rendering in Final Cut, something with 256MB of VRAM or more.. I want something that has 2 DVI connections so I don't need an adapter like I currently do with this card to hook up both Apple displays. Suggestions?
Lastly I am looking to up my storage space on this beast. I currently have a brand new 160GB main HDD (Courtesy Apple Care) and a 250GB Maxtor internally. I would really like to have at least a TB of storage. My question is wether I should just keep the 160 for the main boot up drive and apps along with minimum documents to keep the speeds faster, and get a 500 internal and 500 exclosure, or get two 500's for internal?

Hi-
With RAM, fancy isn't necessary, compatible is. Buffers aren't supported, so stick with the recommended memory. Memory should be 184-pin DDR SDRAM DIMMs that are 2.5 volt, unbuffered, 8-byte, nonparity, and DDR400-compliant (PC3200).
Important: DIMMs with any of the following features are not supported in the Power Mac G5 computer: registers or buffers, PLLs, ECC, parity, or EDO RAM.
For two DVI outputs, and the power to run your software, the only choices are the Geforce 6800GT and the Geforce 6800 Ultra. For a bit less money, but requires an ADC to DVI adapter for second DVI, the Radeon X800XT will help with the softwares needs. These benchmarks will help you see the performance of the cards.
For storage, the 160gb will work for OS and applications, but you might as well add two 500gb-750gb drives. The new, enterprise drives have great performance, and though larger, will most probably work faster as a startup drive than the 160gb drive. These benchmarks are from a Mac Pro test, but the results illustrate the speed of the larger drives.
The Western Digital SE16 series, or the Seagate ES series offer excellent performance and reliability. See Storage Reviews. For a 1tb drive, see this article.
Of course, whatever you install, add enough external for full backup capabilities.

Can the PCU from a Power Mac G4 w/400 mhz be upgraded to something higher?

Hi Everyone,
I got a few questions that I've been trying to answer since I discovered that the CPU's in the power macs can be upgraded. I got a power mac g4 that I picked up at my local dump for $20. I use to be a standard dell man but once I got my hands on the power mac, I've been hooked. From what I've been reading in the forums, it may be possible to upgrade the cpu on my power mac. I have one slight problem though, I can't tell what model I have. From what I can gather, I may have a sawtooth model (AGP?) but, I'm not too sure. So my questions are as followIs:
1. Is their some type of marker on the Mac that can tell what model it is?
2. Once the model has been confirmed, can it's particular cpu be upgraded and if so, how high?
3. Besides adding more memory (she has 1.5 GB) is their anything else I can do to make her faster?
Well, any help that can be provided would be great!
-Rick
Bronx, NY
P.S. here's the hardware overview:
Machine Model: Power Mac G4
CPU Type: PowerPC G4 (2.9)
Number Of CPUs: 1
CPU Speed: 400 MHz
L2 Cache (per CPU): 1 MB
Memory: 1.5 GB
Bus Speed: 100 MHz
Boot ROM Version: 4.2.8f1
Serial Number: XB0470QQJ3B
Sales Order Number: M7891LL/A

Hi-
1. Is their some type of marker on the Mac that can tell what model it is?
Based on the model number, here's your Mac:
http://www.everymac.com/systems/apple/powermacg4/stats/powermac_g4_4002.html
It is a Gigabit Ethernet model.
The linked page lists many of the options that you have.
Further info is here:
http://support.apple.com/kb/HT3082?viewlocale=en_US
2. Once the model has been confirmed, can it's particular cpu be upgraded and if so, how high?
Processor wise, the GE also had a dual 450MHz and a dual 500MHz processor. These would be a plug and play upgrade.
You could also use a processor from a Quicksilver, by adding power to the 4th mount lug of the processor daughtercard.
These processors range from 733MHz to dual 1.0GHz.
More regarding that topic here:
http://discussions.apple.com/thread.jspa?messageID=9354289
Most any aftermarket processor from old makers like Gigadesigns, FastMac, OWC and Powerlogix will work. Current makers of CPU upgrades from Newertech and Sonnet are also available.
Single processors are available up to 2.0GHz and duals up to 1.8GHz.
3. Besides adding more memory (she has 1.5 GB) is their anything else I can do to make her faster?
In OS 9, 1.5GB is the max RAM supported.
In OS X, 2GB is fully supported. 4x 512MB DIMMs are the max RAM supported.
A new hard drive (current ATA/IDE model) is always a great way to boost performance. Old drives are just that, and don't have the cache and other technological benefits that current drives do.
Graphics can also be boosted.
Find a PC version of a Radeon 9800 Pro and flash it to Mac ROM, or, buy a pre-flashed card on eBay in Apple Components.
The 9800 Pro is the top upgrade for 2x AGP graphics machines.
You can also add USB 2.0 support with a PCI card. Get any card that has the NEC chipset, and you are good to go.
Don't forget to get a later model optical drive.
Any Pioneer model will have the best native support in OS X.
In OS X versions lower than 10.4.9, use the appropriate Patchburn utility to get full burn support.
There are other possibilities, but this should get you started.

I've got a 10.5.8 power mac G5 but would like to upgrade to new software, lion and office 2011, but that requires an intel processor. Is this a lost cause? If not any ideas what it might cost me?

Okay looks like I didn't understand the format for these questions. I have used my Mac BookPro almost exclusively for work and my Power Mac for my home recording studio but now want the Power Mac to be a second computer for my work. So I need to upgrade to Lion and install office 2011. So, considering my subject line, any help offered is appreciated.
Thanks.

The max OS for all Macs with a PowerPC processor is Leopard OS 10.5.x.
If you are going to consider getting a newer, but used, Mac, here's the requirements for Lion.
Lion 10.7 System Requirements
    •    Mac computer with an Intel Core 2 Duo, Core i3, Core i5, Core i7, or Xeon processor (most models released since late 2006 - early Intel-based Macs with Core Solo or Core Duo processors aren't compatible)
    •    2GB of memory (recommend at least 4GB -- and ideally even more, as you'll see benefits in many computing tasks)
    •    OS X v10.6.6 or later (v10.6.8 recommended) for Lion download from Apple App Store; or Leopard 10.5.x if using Lion on USB drive
    •    7GB of available space (10GB recommended)
 Cheers, Tom

Kernel Power error after Win 7 and RAM upgrade

Hello,
I posted earlier on the subject of win7 and ram upgrades. I did both and it seemed to go fine. I did the ram first ... replaced a 667Mhz 1gb with a 800Mhz 2gb. A couple of days later the computer just shut itself down and restarted. Since then it has done it another 5 times, seemingly at random. Yesterday I decided to spend some time looking into it and found the 'event log'. All the shutdowns are recorded as 'critical'. A search on the web/here showed other occurences of the fault associated with drivers as much as anything.
After I did the win update I did update almost every driver with ones from this site.
Other than the shutdowns the only issues I have which are of very mild concern are the length of time the fingerprint reader takes to be present and that occasionally the cursor is unavailable for about a minute after logging on. When you try and control it it jumps about anywhere but where you want it to go. I rolled back the alps driver and that seems to have sorted the cursor issue.
So, details of the shutdown from the event log are as follows.
Log Name:      System
Source:        Microsoft-Windows-Kernel-Power
Date:          16/01/2011 16:21:31
Event ID:      41
Task Category: (63)
Level:         Critical
Keywords:      (2)
User:          SYSTEM
Computer:      (removed by me)
Description:
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly."
There's more (I've shown it all below) but it's not that important. When I looked into it I found details of the problem on the microsoft knowledge base. Its described here http://support.microsoft.com/kb/2028504.
I believe I fit into scenario 3 for cause and resolution.
So, it seems that win7 and mixed speed ram may be a problem on some computers ... probably only a tiny number, but it looks like the HP3507 is one of them. I did see somewhere that I could down speed from 667 to 266 which might help with memory compatability but I can't see anywhere on the the insydeH20 bios where to do it. BIOS is version F18 .... upgraded from F15 as part of the Win7/RAM ugrade.
Before I swap back to the 'old' memory I'll see if anybody here can come up with any ideas. It may be that I have to sell off the expensive 2gb memory (ddr2 800mhz 200 pin) for £39.99 from maplin at a bargain price and get 2gb of 667Mhz from somewhere.
The full 'detail' regarding the fault is below.
Bye for now.
Phil
Log Name:      SystemSource:        Microsoft-Windows-Kernel-Power
Date:          16/01/2011 16:21:31
Event ID:      41
Task Category: (63)
Level:         Critical
Keywords:      (2)
User:          SYSTEM
Computer:      (removed by me)
Description:
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly."
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
    <Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />
    <EventID>41</EventID>
    <Version>2</Version>
    <Level>1</Level>
    <Task>63</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000002</Keywords>
    <TimeCreated SystemTime="2011-01-16T16:21:31.187617000Z" />
    <EventRecordID>194889</EventRecordID>
    <Correlation />
    <Execution ProcessID="4" ThreadID="8" />
    <Channel>System</Channel>
    <Computer>Home_Laptop</Computer>
    <Security UserID="S-1-5-18" />
</System>
<EventData>
    <Data Name="BugcheckCode">0</Data>
    <Data Name="BugcheckParameter1">0x0</Data>
    <Data Name="BugcheckParameter2">0x0</Data>
    <Data Name="BugcheckParameter3">0x0</Data>
    <Data Name="BugcheckParameter4">0x0</Data>
    <Data Name="SleepInProgress">false</Data>
    <Data Name="PowerButtonTimestamp">0</Data>
</EventData>
</Event>

Hi DWeiland and Schwede,
Thanks for your replies. Yes I did the runtime engine registry change and also mass compiled the LV7.1 folder and my sourcecode. I still see the problem as I have set the LV adapter as Lv 7.1.1 runtime engine. Now I have changed it to LV7.1 development system. With this setting, it is not giving any error. Thus I don’t see any problem now. The older version of the code had the adapter as the runtime engine for some reason, now I have changed the setting to the development system. I hope that it shouldn’t be a problem.
Thanks again!
Thank you,
Sasi

Mac Pro (Late 2013) - 64GB RAM Upgrade

Anyone have any recomendations on third party brand for a 64GB RAM upgrade.
Apple RAM costs approx £1000 GBP whereas Crucial is approx £645 GBP, OWC is similar to crucial if I import from the US but I'm not sure if their ram are Registered or unbuffered.
The above is all cost based - should i be considering other factors such as performance and reliability?
Also when moving to Registered DIMMs i understand that the presence of the Registered DIMM controller on the DIMMs consumes one clock cycle is this a significant hit in performace over Unbuffered DIMMs?

Grant Bennet-Alder wrote:
is this a significant hit in performace over Unbuffered DIMMs?
I don't think so. Take a look at these DIMMs for reference (this Vendor show the specs of exactly what modules will be shipped to you). Even the 16GB DIMMs, while Registered, are still showing they perform at CL9 level (9 clocks to access) -- the same as unbuffered.
http://www.datamemorysystems.com/apple-mac-pro-6-core-intel-xeon-e5-3-5ghz-me253 ll/a-cto-late-2013-memory-upgrades/
Just thought i would update you. I spoke to DMS Technical Support and apparently that DMS CL9 Rating is a typo. It should be CL13!

G4 Power Mac (MDD) - has trouble booting after shutdown

I have a Power Mac G4 MDD (1.25Ghz) that is having issues when it is shut down. The power button on the front of the machine does not start the computer every time. Sometimes it works, sometimes I need to wait a while before it will work. When the button is pressed, it does not light up or anything.
I have noticed that if I sleep the computer it always seems to wakeup when the front button is pressed. But if I shut down the G4, is does not always bootup.
I have also performed multiple restarts when performing software updates, and they always seemed to work fine.
I have changed the Saft battery inside - it was at about .4v
I have performed a CUDA/PMU reset using the button on the motherboard, and followed the Apple procedure. (disconnect power, and accesories, press reset button, wait 10 seconds, reconnect, restart) It did not restart right away, had to wait 20 minutes or so.
The G4 has a new installation of Tiger, with all of the updates.
I have identified that the PSU is dropping the standby voltage on Pin 1. It does not do it consistently, but when the 25v is missing from Pin 1, the G4 does not start. After a couple of minutes, I can see the voltage return to Pin 1, and the unit starts no problem.
Before I look for a replacement PSU (which seem pretty expensive), I was wondering if anyone knows if this is purely a PSU issue, or does the CUDA/PMU influence the standby voltages?

With the "sometimes" nature of the problem, it could be the front panel board, a much cheaper replacement than a PSU. An Apple tech told me that one way to test the front panel board was to find one of the first Apple USB keyboards for the original iMac. The early ones have a power button like the old ADB boards that overrides the internal board/button. He said that, should the Mac start reliably from the old keyboard, then there is trouble with the front panel board. The Apple model number for the USB board with power button is M2452.
Very helpful forum member japamac has a test procedure for the MDD PSU on his site here:
http://jcsenterprises.com/Japamacs_Page/Blog/D275729F-09DA-4FBB-96B3-BEEEB2C0461 9.html
You'll need a multimeter to check the voltage levels.

Basic RAM upgrade question

Hi,
I've read a lot of threads on ram upgrades, but still have a very basic question. I want to buy the $599 Mac Mini, which comes with 1G RAM. Clearly, the Mac RAM is overpriced, but I've been told by a friend to upgrade to at least 2G for $50 extra. I realize Crucial and others sell it cheaper, but I don't know about my ability to put it in.
Is it worth another $100 to go from 2G to 4G. Will I see a noticeable performance increase if I'm using iMovie, Photoshop or Final Cut Express? Or surfing? Are we talking about a few extra seconds when rendering video but no other noticeable effects? I plan to keep this machine for our family machine now that my child is using iWeb.
I'm sorry if this has been answered, but I'm on a very tight budget and worried about my job in this economy. Thanks for your help.

If you are on a tight budget and have any concern about on-going warranty support for a new mini, then it is a better proposition to buy the $50 upgrade to 2Gb from Apple than to do the RAM upgrade yourself and go to 4Gb for little more. It's not that the upgrade is particularly difficult because it isn't, but if you are not reasonably confident in your skills and something goes wrong, Apple could declare the warranty void due to the work you've done on the inside of the system.
There is a notable performance gain to be had from 4Gb as opposed to 2Gb, but much of the difference is less than obvious, particularly if you are careful about what apps you have running at any time. Running Photoshop, for example, would cause the system to slow down if you then launch another major app such as iMovie, but running it alone in 2Gb RAM would give you respectable performance. Final Cut Express isn't particularly demanding on the system so should run well, as would the vast majority of Intel-native applications. It's only if you are running any non-native processes (applications, drivers etc) that 2Gb would prove notably limiting.
If it were me, I'd probably opt for the base model, buy 4Gb RAM from Crucial and do the upgrade myself. Next choice would be the base model, buy the RAM from Crucial and have a local Apple Approved Service Provider do the work for me - some AASPs charge a reasonable fee for this. Third choice would be to buy the base model with Apple-supplied 2Gb RAM and then at a later time replace that with 4Gb from Crucial as and when funds and circumstances reasonably permit it.

HDD and RAM Upgrade Questions...

I am thinking about upgrading my HDD and memory. My computer is a Qosmio X870-BT3G23. HDD is about 1TB and also have 12GB RAM. I am not sure how to upgrade my RAM as I heard the other 2 memory slots are not user accessable. How would I go about upgrading HDD and transfer all my stuff over? I think my computer has slots for 2 HDDs, but not sure... Thoughts on both HDD and RAM upgrade appreciated
Qosmio X870-BT3G23

Skeet, here are the SPECIFICATIONS for your machine if you have not seen them. And on pages 44-53 of your User's Guide is a very thorough description of the adding memory process. As far as transferring files are concerned, at the Start screen, type Easy Transfer, hit Enter and follow instructions.
The specifications indicate you can have 16GB memory in the two accessible memory slots without concerning yourself about the 2 hidden slots. I personally can't imagine why anyone could need more than 16GB memory and 1TB HDD but, of course, that's your call.
C.B.
Toshiba Sat. C75D-B7260 Win 8.1 64 Bit--Toshiba Sat. L775D-S7132 Win 7 HP SP1 64 Bit and Win 10 PRO Technical Preview--Toshiba Sat. L305-S5921 Win Vista SP2 32 Bit

Some RAM upgrade questions

I have an Imac which i purchaswed in Nov. 2007 with 1 gb of RAM. Am looking to add more ram and have the following questions:
I am thinking of adding another 2 to give me a total of 3. Would this work.
Does the ram have to exactly match (manufacturer) of my original Apple ram.
I see ram from OWC, crucial, Ramjet, etc. Any positive or negative experiences?
I am looking at getting 2 gb of ram from crucial and adding it myself.
thoughts??
THANX

I see ram from OWC, crucial, Ramjet, etc. Any positive or negative experiences?
I am looking at getting 2 gb of ram from crucial and adding it myself.
thoughts??
I did exactly the same thing as you: I purchased my iMac online in November 2007, with the minimum amount of RAM installed so that I could do my own RAM upgrade later. I then ordered 1 GB of RAM from Crucial, and I must say that their prices are superb, not to mention their excellent service and speedy shipping. Because I live in Canada, I had to pay customs duty, but the final price was STILL much less expensive than any other Canadian RAM dealer, let alone the astronomical prices on Apple's web site! In my humble opinion, Crucial is highly recommended.

Power Mac MDD G4 1.25 Ram Upgrade Question

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