Report on memory upgrade

A couple of months back, I posted several questions regarding memory upgrade for my Mini 1.5 Core solo. I thought I would take a couple of minutes and report on the results.
With memory prices dropping like they have, I decided to take the plunge and upgrade to 2G. Wow! This is now the computer I thought I bought. I run Mail, Firefox, Excel [PPC], Word [PPC] and Quicken [PPC] - plus Norton AV [PPC] - regularly, and Google Earth, iTunes, iPhoto occasionally. Plus an HP printer [PPC driver]. My Page Outs were running 30-40% of Page Ins for my typical use. I waited for program swapping as well as function swapping within a program.
I now wait for virtually nothing! Page Outs are barely above 0%. Programs load faster, though actual processing appears just about the same [as expected].
I purchased Micron memory from Crucial, as I knew it would be "right". It is now selling for $132/2x1G, free shipping, plus tax in many states. In order to insure no problems with validity of my AppleCare Warr, I had it installed by my local [non-Apple] Authorized Service Center for $45. I justified 2G versus 1G by looking at 2x512M costing me about $113 [installed] to double the memory versus 2G costing me about $177 to quadruple the memory.
As I watch Activity Monitor, it is likely that 1G would have accomplished most of the improvement that I see, but I am NOT sorry I went to 2G now when memory is cheap.
Thanks to all who gave me their advice when I first posted.
MacMini 1.5 Intel Core Solo Mac OS X (10.4.8)

I just got the 2 GB Upgrade Kit from Crucial for $120 /w free shipping. Came to about $130 after tax.
I purchased a 1.83 Mac Mini with 512 MB of ram and an 80 GB hard drive 3 months ago. I decided it was the best solution for a recent computer failure. Although quite fast especially for CPU intensive tasks the system would hang on particular tasks.
1) Parallels was virtually unusable (even more so if I had anything else running)
2) iTunes had problems displaying all of my album covers in the jukebox mode
3) Protoshop / Painter slow to load
4) Widgets were slow to load
Having the correct tools for the job, installation of the 2 GB kit was rather simple. I didn’t seat the top SO DIMM correctly the first time around but I was smart to test the system before closing the case.
Improvement was noticed almost immediately.
1) Boot times increased
2) The infrequent Beach Balls disappeared
3) Parallels is not only usable it’s like having a 2nd computer
4) iTunes has no hang ups
5) Photoshop and painter can handle large images with many layers without slowing down. (Large brushes in painter kill the system, but that’s CPU related)
6) Widgets launch faster but not as quick as I would have expected
Over all the upgrade was completely worth it. It is like a whole new computer. Bottom line 512 MB is the bare minimum for OS X 10.4 assuming you do nothing more then Brows the internet, Chat on line or use it as a media device.
I have a hard time justifying the upgrade through Apple’s site. It’s not worth the $120 premium when instillation should be simple for even an above average computer user. Either way I couldn’t recommend any one use a mini with 10.4 with anything less then 1 GB

Similar Messages

I upgraded my iBook G4 from 384MBytes to 640Mbytes and upgraded from Tiger to Leopard. After a few weeks the HDD failed. New Leopard install reports: "insufficient memory". I need Tiger install disks so I can install

I upgraded my iBook G4 from 384MBytes to 640Mbytes and upgraded from Tiger to Leopard.
After a few weeks the HDD failed. I bought a new disk, installed it and trued to install Leopard, but the install fails reporting "insufficient memory".
I assume the installation requires more memory than the OS actually needs to be able to run.
I need Tiger install CD/DVD so I can install Tiger first and then upgrade to Leopard.

Call Apple Customer Support 1-800-767-2775, provide the Serial Number and specifications of the Mac, and for a reasonable fee, they will supply a replacement set of system discs (if available).
The discs will be for the original version of the OS that was pre-installed when the Mac was manufactured.
You need much more RAM than that.
Leopard system requirements:
http://support.apple.com/kb/SP517

Memory upgrade fail - Kernel panic after put old memories back

I People, this is my first post here and unfortunately is to report a problem, not to help friends.
I did an memory upgrade last weekend. After this, he will not boot normally, only in safe mode.
I discovered that they sent me 1333Mhz memories, and my mac (mid 2009) supports only 1066Mhz.
I put the old memories again, however I believe that the system did not recognize.
As you can see below, the system recognizes two modules:
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1067 MHz, 0x80CE, 0x4D34373142353237334448302D4348392020
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1067 MHz, 0x80CE, 0x4D34373142353637334648302D4346382020
It is not true, I' using now 2 x 2GB, DDR3, 1067 Mhz (stock)
I tried to reinstall the system, but when I try, I got crash again.
how can I solve this issue?
Interval Since Last Panic Report: 5298 sec
Panics Since Last Report:          6
Anonymous UUID:                    EAEB74C4-4B23-BCC2-1A48-B6FEB255C9FF
Mon Apr 1 16:37:33 2013
panic(cpu 1 caller 0xffffff800e0876ab): "Spinlock acquisition timed out: lock=0xffffff8011bff270, lock owner thread=0x10d9fb0aa, current_thread: 0xffffff801f873000, lock owner active on CPU 0xffffffff, current owner: 0x10d9fb0aa"@/SourceCache/xnu/xnu-2050.7.9/osfmk/i386/locks_i386.c:363
Backtrace (CPU 1), Frame : Return Address
0xffffff80f54fbd10 : 0xffffff800e01d5f6
0xffffff80f54fbd80 : 0xffffff800e0876ab
0xffffff80f54fbdb0 : 0xffffff800e06256b
0xffffff80f54fbf40 : 0xffffff800e0b7f69
0xffffff80f54fbfb0 : 0xffffff800e0ce3d1
BSD process name corresponding to current thread: diskarbitrationd
Boot args: config="\OS X Install Data\com.apple.Boot" root-dmg=file:///OS%20X%20Install%20Data/BaseSystem.dmg
Mac OS version:
12A269
Kernel version:
Darwin Kernel Version 12.0.0: Sun Jun 24 23:00:16 PDT 2012; root:xnu-2050.7.9~1/RELEASE_X86_64
Kernel UUID: 8D5F8EF3-9D12-384B-8070-EF2A49C45D24
Kernel slide:     0x000000000de00000
Kernel text base: 0xffffff800e000000
System model name: MacBookPro7,1 (Mac-F222BEC8)
System uptime in nanoseconds: 8887270925
last loaded kext at 1689458563: com.apple.driver.AppleUSBTCButtons     235.4 (addr 0xffffff7f8f6c7000, size 20480)
loaded kexts:
com.apple.driver.AppleUSBTCButtons     235.4
com.apple.driver.AppleIRController     320.15
com.apple.driver.AppleUSBTCKeyEventDriver     235.4
com.apple.driver.AppleUSBTCKeyboard     235.4
com.apple.driver.DiskImages.ReadWriteDiskImage     344
com.apple.driver.DiskImages.SparseDiskImage     344
com.apple.driver.DiskImages.UDIFDiskImage     344
com.apple.driver.DiskImages.FileBackingStore     344
com.apple.driver.DiskImages.HTTPBackingStore     344
com.apple.driver.DiskImages.RAMBackingStore     344
com.apple.driver.AppleFileSystemDriver     3.0.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless     1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib     1.0.0d1
com.apple.BootCache     34
com.apple.driver.AppleUSBCardReader     3.1.0
com.apple.iokit.SCSITaskUserClient     3.5.1
com.apple.driver.XsanFilter     404
com.apple.iokit.IOAHCIBlockStorage     2.2.0
com.apple.driver.AppleSmartBatteryManager     161.0.0
com.apple.driver.AppleUSBHub     5.1.6
com.apple.iokit.AppleBCM5701Ethernet     3.2.5b3
com.apple.driver.AirPort.Brcm4331     600.15.20
com.apple.driver.AppleFWOHCI     4.9.5
com.apple.driver.AppleAHCIPort     2.4.0
com.apple.driver.AppleUSBEHCI     5.1.5
com.apple.driver.AppleUSBOHCI     5.1.5
com.apple.driver.AppleEFINVRAM     1.6.1
com.apple.driver.AppleRTC     1.5
com.apple.driver.AppleHPET     1.7
com.apple.driver.AppleACPIButtons     1.6
com.apple.driver.AppleSMBIOS     1.9
com.apple.driver.AppleACPIEC     1.6
com.apple.driver.AppleAPIC     1.6
com.apple.driver.AppleIntelCPUPowerManagementClient     196.0.0
com.apple.nke.applicationfirewall     4.0.39
com.apple.security.quarantine     2
com.apple.driver.AppleIntelCPUPowerManagement     196.0.0
com.apple.driver.AppleUSBMultitouch     235.7
com.apple.iokit.IOUSBHIDDriver     5.0.0
com.apple.driver.DiskImages.KernelBacked     344
com.apple.iokit.IOSCSIBlockCommandsDevice     3.5.1
com.apple.iokit.IOUSBMassStorageClass     3.5.0
com.apple.driver.AppleUSBMergeNub     5.1.5
com.apple.driver.AppleUSBComposite     5.0.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice     3.5.1
com.apple.iokit.IOBDStorageFamily     1.7
com.apple.iokit.IODVDStorageFamily     1.7.1
com.apple.iokit.IOCDStorageFamily     1.7.1
com.apple.iokit.IOAHCISerialATAPI     2.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily     3.5.1
com.apple.iokit.IOUSBUserClient     5.0.0
com.apple.iokit.IOEthernetAVBController     1.0.2b1
com.apple.iokit.IO80211Family     500.15
com.apple.iokit.IONetworkingFamily     3.0
com.apple.iokit.IOFireWireFamily     4.5.5
com.apple.driver.AppleMCP89RootPortPM     1.11
com.apple.iokit.IOAHCIFamily     2.2.0
com.apple.iokit.IOUSBFamily     5.1.6
com.apple.driver.NVSMU     2.2.9
com.apple.driver.AppleEFIRuntime     1.6.1
com.apple.iokit.IOHIDFamily     1.8.0
com.apple.iokit.IOSMBusFamily     1.1
com.apple.security.sandbox     220
com.apple.kext.AppleMatch     1.0.0d1
com.apple.security.TMSafetyNet     7
com.apple.driver.DiskImages     344
com.apple.iokit.IOStorageFamily     1.8
com.apple.driver.AppleKeyStore     28.18
com.apple.driver.AppleACPIPlatform     1.6
com.apple.iokit.IOPCIFamily     2.7
com.apple.iokit.IOACPIFamily     1.4
com.apple.kec.corecrypto     1.0
Model: MacBookPro7,1, BootROM MBP71.0039.B0E, 2 processors, Intel Core 2 Duo, 2.4 GHz, 8 GB, SMC 1.62f7
Graphics: NVIDIA GeForce 320M, NVIDIA GeForce 320M, PCI, 256 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1067 MHz, 0x80CE, 0x4D34373142353237334448302D4348392020
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1067 MHz, 0x80CE, 0x4D34373142353637334648302D4346382020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8D), Broadcom BCM43xx 1.0 (5.106.98.100.16)
Bluetooth: Version 4.1.3f3 11349, 2 service, 11 devices, 0 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: ST9500420AS, 500.11 GB
Serial ATA Device: MATSHITADVD-R   UJ-898
USB Device: Built-in iSight, apple_vendor_id, 0x8507, 0x24600000 / 2
USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0x26100000 / 2
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x06600000 / 4
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8213, 0x06610000 / 7
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x06500000 / 3
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0236, 0x06300000 / 2

Hi BGreg,
I already reset the PRAM as you said.
I've cleaned the memory modules as indicated by Linc above.
Today I formatted my harddrive to try a clean install, but system crashs after 5%, 10%.
There is something making me worried:
In one of my tries, I opened the system view to check my actual hardware configuration, and to my surprise, the system shows me 8GB installed. Cannot be. I have 2 x 2GB.
Where my system stores this information? There is a way to reset it? I tried last hour install the snow leopard, that cames with my mac, by DVD, but does not worked too.
Thank you all so far.
Giuliano

Memory Upgrade for T61

Hi friends,
I have a T61 7663-xxx system, with 1 GB PC2-5300 667 MHz RAM. My Front Side Bus is 800 MHz ( I think so!), Everest software reports my memory controller is dual channel capable, and ~ 85% physical utilization of RAM. I have a nVidia Quadro NVS 140M 128 MB graphics card, but Everest reports 512 MB ?
I would like to upgrade my RAM, and buy some online.
a) Should I buy a similar 2 GB PC2-5300 RAM for my system for performance boost, running Windows XP 32 bit? If so, should I buy Lenovo RAM only, for maintaining my 3 year warranty intact?
Only ThinkPad and Lenovo memory will assume ThinkPad and Lenovo notebook systems limited warranty
b) What are the other best alternatives for good quality, reliable laptop memory, besides Lenovo?
c) Would it be better if I am able to buy RAM which can match my FSB? Will this have any performance benefit? Do these similar FSB speed RAM exist?
Kindly suggest top memory makers, if any.
I could not find any Lenovo 800 MHz memory from their website.
Kindly help me solve my memory upgrade problem.
I am a mechanical engineering student, hence I don't have any idea about FSB and the like, so I request the learned members to cast light on this area.
Info about reputed online sites in US, with fast delivery will be very much appreciated.
Thanks in advance.
Best Regards,
Raiden
TU Hamburg, Germany
Solved!
Go to Solution.

Hmm. As far as I know, the internal graphics card can't be upgraded. There's some dock you can buy that lets you add a graphics card for use with an external monitor, but I don't know much about it. The cpu is more likely to be upgradeable, but don't attempt unless you know a decent amount about hardware servicing. Also, make sure the cpu will be supported by the motherboard! Best not to buy one with a clockspeed higher than what Lenovo sold (core 2 duo at 2.6 ghz).
Why do you want to upgrade so much? I run 2.1ghz with discrete graphics and 2gb ram under Vista, and it runs beautifully. If you have integrated graphics, then that might be a bit of a pain, but hey, you've got better battery life!
Anyway, I'd look more into de-cluttering your computer to speed stuff up. Remove anything you don't need, especially Lenovo tools that run in the background and you may not need. Turn off search indexing (slower searches, but faster overall performance). There are some nice guides online, if you google "vista tuneup."
Good luck! Enjoy your T61 as it is! It's a lovely laptop

HP Probook 6450b Memory upgrade issue

Hi All,
I appear to be having a strange issue trying to upgrade the memory in a HP 6450b probook (i5-480m & ATI card). The laptop came with 2gb of p/n sps 598856-002 which is 1333mhz 1.5v ram with the manufacturer being ramaxel. I ordered and fitted a couple of 4gb kingston sticks
http://h30094.www3.hp.com/product/sku/10473659/mfg_partno/KTH-X3BS/4G
Fitted them and all seemed to be well as the OS (win 7 32bit pro) showed the stick as 8gb recognised and 3gb usable, the bios also reports 8gb as well. However the moment a 64 bit OS (Linux or Windows) is attempted to be run the laptop just crashes or hangs
I previously attempted this upgrade with two sticks of crucial memory but had exactly the same problem, so thinking the crucial memory was the issue I returned them to the supplier and ordered the kingstons instead.
I have seen very similar issue noted here:
http://www.tomshardware.co.uk/forum/328016-30-memory-upgrade-probook
and
http://superuser.com/questions/580512/hp-probook-6450b-not-booting-after-memory-upgrade
My gut instinct suggests this laptop may be very fussy about the memory chips, it may have to be a 16 chip 4gb stick as opposed to 8 chip 4gb sticks.
Any thoughts and help on the matter would be greatly appreciated.
Thanks
This question was solved.
View Solution.

You're very welcome.
Glad the lower density memory worked for you, and now you know what to look for the next time you plan on upgrading the memory on any HP notebook made in the last 8 years or so.

Macbook Pro late 2008 Memory upgrade Issue

Dear Gurus,
I have a late 2008 15" Macbook Pro 2.4 Ghz with 2 GB 1066 MHz DDR3 installed, I just brought a pair of corsair (2*4GB) DDR3 (CMSO4GX3M2A1333C9) memory upgrade and installed it in my macbook pro. I'm running OS-X Lion 10.7.1 before the upgrade now in About This Mac menu show that I have 8 GB 1333 MHz DDR3 and everything seem to be ok only when I shutdown and power up again the boot time seem to take longer than it is with previous 2GB memory module installed, it took almost 2 minutes from the power button pushed untill my macbook display the login screen. Question: Is the Ram upgrade is OK or I need to return the Ram and get the 1066 Mhz to replace my 2 Gb Ram. How can my mac report that I have 8GB 1333 MHz DDR3 Ram while the system only at 1066 Mhz bus
Best regards,

RAM will clock back to match the system bus as long as it's otherwise compatible. Reporting utilities tend to read the RAMs design speed.
It it works, ignore it.
As for this part of your question:
only when I shutdown and power up again the boot time seem to take longer than it is with previous 2GB memory module installed, it took almost 2 minutes from the power button pushed untill my macbook display the login screen.
that's normal. The OS does a "power-in self test" or "POST" at startup that includes RAM checking. The more RAM installed, the longer the test takes. You quadrupled you RAM, so the increase in start time does not surprise me.

Lenovo J115 7387 9HU memory upgrade to 4 GB fails

I've been running Linux Etch amd64 with 512 MB stock RAM for a while without any problems. 512 MB is just not enough RAM for what I'm doing, so after upgrading to an additional 2 GB RAM (identical spec'd RAM 5300U-555 667 Mhz) along with the stock 512 MB, my system became randomly unstable with disk corruption and other weirdness such as running apps suddenly exiting. Switching back to the 512 MB solved the problem. Switching to just the 2GB RAM causes the problem to reappear so it's not a combination problem. I tried another 2GB RAM chip with the same results, and I ran an overnight memtest that reported no memory problems. I also checked the HD and it's fine - this is clearly a memory problem.
I checked for a BIOS update and indeed there is one that specifically addresses a 2GB RAM issue, so I installed the BIOS update without any trouble.
After the BIOS update my system no longer has disk corruption problems (that's at least an improvement), but instead it reports "bad page state in process" errors and it will sometimes get a kernel crash.
In addition to the instability problem, if I put in 4 GB RAM (supposedly the maximum supported limit for this machine), the BIOS only displays 3006 MB of RAM, yet the OS (which is 64-bit) does display all 4 GB of RAM and reports that it is making use of the full 4GB of RAM (I load up a whole bunch of things that will take up the full amount before swapping to disk).
I tried 2 x 512 MB RAM giving me 1GB of RAM and it all works perfectly, so it seems that there's still a 2GB memory problem and the BIOS update only improved the situation but did not fully solve it as was claimed.
Well to say the least I'm not at all impressed
The BIOS has no tweaking options to try out, so it looks like I'm stuck unless Lenovo addresses the problem with another BIOS update, but that seems unlikely for this machine.
Does anyone know of a solution to this problem, or should I just trash the MB and buy something else? Any recommendations as to what mobo will fit into the existing case?

An update:
My system seems to be working OK with the 4GB RAM upgrade for a few days now since the BIOS upgrade. The BIOS still does not report the correct amount of RAM, but this does not seem to matter and my OS appears to be making use of all of it. The page errors may have been due to an unrelated problem (software not hardware). If I have any further problems with this machine I'll post in here.

Memory upgrade on iMac G3 700, help with system crashes

I tried to do a memory upgrade on my iMac, so I bought two kingston 256 MB PC133 modules, but none will work, the system starts, but hangs in about two minutes after loading the desktop. I went back to use the older memory module wich is an spectek, but I need the upgrade, any ideas?
Thanks!
FedericoMG.
Ps: Sorry about my english... I'm from Argentina... :-P

Hi Federicomg
The iMac 700 G3 should have been supplied with 1 stick of 256mb ram. However which is the correct type i am not sure as the Apple specifications for this model state PC100 whereas my iMac G3 700 graphite was supplied with 256 MB PC133-333 SDRAM
http://support.apple.com/specs/imac/iMacSummer2001.html
Apple profiler from my iMac this is the original supplied RAM from Apple:-
DIMM0/J13: Size: 256 MB
Type: SDRAM
Speed: PC133-333
1) I would re-instal the original ram and open system profiler to see what type the ram is.
2) Keeping the original stick in place add another stick of the new ram and look again in profiler to see if its recognised and again try the second stick to see if there's a problem with one of the sticks.
I am currently running my iMac with a small upgrade of RAM and the additional RAM is 128MB of PC100 and i have noticed the performance improvement since adding the PC100 so it's working and i have suffered no ill effects doing this..
paul..

MS-6195 memory upgrade

Hi,
My system is based on Ms-6195 K7 pro and Athlon 700 mhz. 192 Mb Ram (128Mb module + 64Mb module)
Problem:
when I try to upgrade memory with a sdram 256Mb PC100 module, the memory test can't finish and my system don't boot.
Please can you tell me how configure coreectly the BIOS or tell how to do.

MS-6195 memory upgrade.
I have also tried using new PC100 256Mb memory and am getting nowhere.
The ones that I have bought are single sided, [8 chips on only one side]
and do not work with my motherboard, however, if I put them into another,
older PC, it shows up as 128Mb.
So I assume that the DIMM is working OK, and that the 'old' PC has a memory size limitation??
I have tried the same things as wbs and Grommit and got the same results.
So I assume that the answer is in getting older DIMMs, double sided with 8 chips on either side.
Does this seem to be about right???

Memory upgrade

Hi,
Can I install 2 x Crucial 4GB DDR3 - 1333 SODIMM 1.35V 204 PIN - CT51264BF1339J on a Macbook Pro 13 inch late 2011?
Currently, I have 4 GB (2 x 2 GB) and I want to upgrade to 8 GB. There is a controversial info regarding this particular memory module, some people say it is not compatible.
When I look to the specs I find:
204 PIN form factor = OK
1,35 V = OK
DDR3 = OK
1333 = OK
SODIMM = OK
Max 8GB = OK (2 x 4GB)
Latency= 9 cicles (same that stock modules supplied with the laptop) OK
The thing is Crucial, sell an identical specs module that costs quite more. They claim it to be compatible with Mac. The also sell this one I mentioned as being not compatible. The funny thing is that specs for both are identical. I only find a difference on the pricing. So I am really confused.
Do they one to sell me a more expensive one like being specific for Mac or there is a hiden specification that makes the two modules to differ from each other?
Can somebody confirm this info to me, please?
Many thanks in advance
Best Regards

News on this subject:
A Crucial support representative replied saying:
"Mac compatible memory is guaranteed to work in your specific system. There may be subtle differences in non specific memory that will cause it not to work for you such as chip solution and the configurations of chips..."
Well, I find it very ambiguous technically speaking. If they sell good quality memory as they claim, I do not see which subtle differences will affect the functionality. The chip configuration is standard and chip solution is about quality. So Crucial should be all right as everyone claims (even if manufactured in China)
So I went a head and both 2 x CT51264BF1339J for a very reasonable Belgian price and installed it into my system just two minutes ago. I am writing this using the mentioned system.
I was on Google after 30 seconds of taping the On button. Although it did not changed a lot as this startup timing is more related to the Hybrid 750GB HDD (SSD + Conventional Drive) I upgraded few months ago.
I upgraded the memory to run Virtual Box and Parallel desktop more easily though it worked quite good with 4GB. I did not upgraded to 16GB because it is not necessary on my usage. Only one virtual machine at once + E-mail + Browser + some PDF opened. Some technical stuff and nothing like Photoshop or similar. Thus the huge money difference would have gone for nothing if I buy the specific Mac modules of 8GB each as "Crucial Memory Upgrade Tool" subjected me.

Memory upgrade not working

I ordered 8GB memory for my imac mid-2011 model.
I then tried to install and all I'm getting is three beeps telling me there's something wrong with my memory.
I've tried all configurations but can't get the 2x4gb modules to work.
I've had to stay with only the original 2x2gb ones it came with.
Can anyone please help.
The only difference, besides the size, between the two modules is that on the 4gb ones is says PC3-10600S-9-10-F2 and the 2gb ones say all the same except instead of F2 at the end it's F1.
Cheers.

Which would seem to suggest that you may (unusually) have a doubtful memory module. Less unusually, you would have paid over the top for it.
Many people on these forums speak well of the following suppliers.
In North America contact OWC … Upgrade Apple iMac Memory
In Europe contact Crucial.com … RAM Memory Upgrade
Both companies have facilities to guide you and will recommend the correct memory package to meet whatever needs you describe to them.
There may be benefits buying from your own geographical location insofar as Shipping charges, Local sales taxes and Exchange rates. Check out the basic memory costs and do your sums next time you buy.

Memory upgrade on Satellite Pro L40-15d

Hi
I have Satellite Pro L40-15d with 512 memory (Samsung) but I wont upgrade to 1GB. I have Kingston ktt667d2/1g I have tray to put in to both slots but nothing work I cant switch on computer.
But when I change for old one laptop is ok. What can I do? Install special program or update BIOS or maybe the memory stick is broken.
Regards

Hi
The notebook doesnt boot after the memory upgrade due to these different issues;
- memory modules are not compatible together
- memory modules are not compatible with the notebook
- memory modules are faulty
- one of memory slots is faulty
In most case the memory module replacement helps.
One hint; did you try to switch the memory modules in the slots? Sometimes this helps.
Several weeks ago I have updated my memory and the notebook didnt boot.
I thought its a memory malfunction but after module switching the notebook booted correctly.
Good luck

Memory upgrade on Satellite A50-104

I NEED TO FIND A 512MB MEMORY UPGRADE FOR MY A50/104 ANYONE NO THE CORRECT ONE TO BUY, I WAS TOLD ON EBAY THAT 512 DDR SODIMM IS THIS RIGHT. ALSO HOW DO I CHECK ON MY LAPTOP FOR THESE DETAILS IF THERE ARE ANY AND ANY OTHER SPEC BATTERY ,HARDDRIVE ETC

Hi
You have several ways to find out what memory module is compatible and supported.
You can use a diagnostic too like Everest, you will check the user manual or the Toshiba website for details or you will contact the service in your country for supported modules.
I will try to answer the question: The Satellite A50 should support PC2700 DDR-RAM like these parts:
PC2700 256MB (PA3311U-1M25)
PC2700 512MB (PA3312U-1M51)
PC2700 1024MB (PA3313U-1M1G)
Now its your choice. You can also google for the offers
By the way: Visit the Toshiba Options & accessories site. There you will find compatible parts

Memory upgrade on Satellite Pro A40

Can anyone please advise where is the best place I can get a memory upgrade for my Satellite Pro A40 laptop.
I think my machine is a PC2700 DDR. I am looking for either 512mb or 1gb.
Thanks in advance.
Christine

Hi
On the Satellite Pro A40 you will find 2 memory slots and you can upgrade the memory to max 2GB (2x1024MB)
It should be possible to use these modules:
PC2100 512MB (PA3164U-1M51)
PC2100 1GB (PA3278U-1M1G)
And
PC2700 512MB (PA3312U-1M51)
PC2700 1024MB (PA3313U-1M1G
I purchase the compatible parts and devices always form the Toshiba service partner in my country because so I'm 100% sure that this parts are compatible.
So I would recommend you also to buy the modules form the ASP in your country.

Memory Upgrade on Satellite Pro A60

I have upgraded an A60 Pro with a 1GB memory up but the Control Panel /System/ General tab still shows it as having 192MB RAM. This limits me downloading some Security Software from BT Yahoo.
Can anyone advise on how I can make the machine recognise the new RAM or is the 192 MB RAM noted different memory from the new memory upgrade?

If you use non-compatible RAM module it is logic that system can not recognize it correctly. I do not know who is the manufacturer of this 1 GB RAM module but if you want to use compatible one pick up some info about PC2700 1024MB (PA3313U-1M1G) or check Kingston web page.

Report on memory upgrade

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