16GB Memory upgrade issue

Hello,
I just did a memory upgrade on my macbook pro 15-inch early 2011.
After I insert the 2 x 8GB memory cards, macbook was started OK.
Several minutes later I noticed on USB port and audio are not working anymore.
If I insert back the 2 x 2GB original memory cards, all works fine.
Do anyone have some advice on this?
Thanks in advance.
Ricardo.

Early 2011 models were tested with the best available RAM at the time ... 4 GB sticks. Even last fall 8 GB sticks were $1000 for a pair. Now it is inexpensive enough for us common-folk to buy it. But that "it seems to work" only underscores the need for fully compatible RAM.
As to correct specs, just let crucial or macsales guide you by model/year. They try very hard to be Mac-compatible and only sell what they are willing to stand behind.

Similar Messages

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 - Should I have a 16GB memory upgrade? (info below)

I own a 15-inch Macbook Pro (2012)
Processor 2.3 GHz Intel Core i7
Memory 4 GB 1600 MHz DDR3
At the moment my macbook pro has 4GB of memory installed and (450 of) 500GB of storage. I'm having quite a bit of issues due to the amount of space I have left.
I am mainly using Adobe photoshop (Digital Painting) and 3D Autodesk Software (specific:Maya) and will be using it for University (ALOT!) These softwares take a huge chunk of memory when using plus rendering etc. Now, the speed is very slow when doing small projects.
Also, my question is whether having 16gb memory will solve my problem without researching to other things that might help the performance,speed,ram of the macbook pro.
I also know (a little) about SSD which presummally increase speed performance.
I'm not sure if you would call it overkill by having 16gb, personally I don't think it will.
I just need some guidience since I'm not too familiar to finding the best solution out of this?
8gb + SSD?
16GB?
etc..?

danicashmore wrote:
I own a 15-inch Macbook Pro (2012)
Processor 2.3 GHz Intel Core i7
Memory 4 GB 1600 MHz DDR3
At the moment my macbook pro has 4GB of memory installed and (450 of) 500GB of storage. I'm having quite a bit of issues due to the amount of space I have left...
If you're saying that there's only 50 GB of HD space left, that would be compounding the problem of only having 4GB of RAM because the Mac (and other operating systems) use virtual memory (i.e., paging RAM contents to disk) when physical memory is insufficient and you don't have much of either. Moreover, Photoshop use a cache on disk for processing, and again, there's not much space for that. I'd suggest looking into more RAM (of which you can never have too much) and then an SSD of sufficient size.

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.

15-inch Mid-2010 memory upgrade issues

Hi,
I have a 15-inch mid-2010 MBP running Mountain Lion, that I upgraded from 4 to 8 Gb of memory in Sept. 2012. The memory i purchased was a 2x4 gb set of Corsair Value rated at 1333 MHz. The upgrade went smooth, and i did not have any problems for a few months.
Then late in december or early in january, I had a few Kernel Panics. I didn't think too much of it, as I was busy with exams, and thought it might be a software issue or something, maybe related to VMware Fusion. The KP's started getting a bit more frequent, and suddenly one day the machine wouldn't boot at all, it just KP's at the Apple logo and then goes in a loop. I now suspected a memory problem, as my experience tells me that this is a usual cause of KP's.
I started fiddling with the memory sticks, and determined that one of the blocks would boot, so i went to the place i bought the set and talked to them. They agreed that the one block was probably faulty, and replaced my memory with a 2x4 Gb set of Corsair Mac Memory. This is 1066 MHz CL7, and should be compatible with MB,MBP and iMac, according to the packaging. The problem is that the machine will not boot with this memory either. It just goes for the same loop and KP's at the Apple logo. I can't even get this to boot with one stick in the machine, so it's arguably worse.
The machine works well with the original memory, It's been a rock solid main machine with 4Gb of ram for about a month now.
I tried PRAM and SMC reset to no avail. I tried booting into boot camp with the new memory, but it just never seems to load Windows. This also works with the old memory.
I'm a bit lost as to what i should try next. I suspect it's a problem with the Logic Board, i just don't see how, seeing as it used to work with 8 Gb, and that it still works with 4 Gb.
Any suggestions would be appreciated

So, i've played around with things a bit more. 4 gigs of ram is still rock solid. I've had the memory in a friends computer, an HP PC, where it works just fine.
Also, the computer starts up fine in fail safe mode if i hold down shift during boot, but that's no way to live.
I should probably have mentioned in my first post that I have replaced my optical drive with a 64 gb SSD that i boot OS X from. Since Windows does not start up either, and i've had that part of the setup for about two years, I wouldn't think that is the problem.
The computer has been running 15 passes of Rember this night, and was still running when i got up, so it's clearly not entirely broken.
Any suggestions?

MS-6183 Memory Upgrade Issues

Help, I am upgrading a PC for a friend and have replaced the standard 128Mb PC100 ram with a matched pair of 256Mb PC133 DIMMs but the PC refuses to see any more than 128Mb. I have flashed the BIOS to 1.7 without any difference.
Is there a setting in the BIOS or Jumper that restricts the memory available?
Cheers.

So each one alone is 128MB and also both of them together are 128MB ?
Try clearing the CMOS then.

IMac G3 600 memory upgrade issue

I have just acquired a Snow iMac 600mhz, currently using 256mb RAM (one stick). I want to install a 512mb stick in the open slot, but the computer won't start with it installed. I have upgraded the Firmware to 4.1.9, and the RAM is known good in another computer. It was purchased from OWC, and I have confirmed that the specs of the RAM match the specs set forth by Apple. I don't know what else I can do. I have attempted rudimentary things, like trying to reset the PRAM (not successful, since when restarting after the RAM install, it only beeps/bongs and sits there). I am looking for alternative reasons/solutions for this problem.
I hope someone can help me.
Thanks!

Logical question. It was very well seated in the slot. It is PC100 CL2 168-pin 3.3v 64 bit SDRAM. I assure you it is the correct RAM. And I tried it in another iMac--a friend's 500mhz Snow iMac. It worked.
As stated above, I confirmed that the firmware is up to date. I am uncertain of what else I can do. If I install just the 512 stick, all I get at startup is that little beep--no HD spinup, nothing. If I leave the existing 256 meg stick in the "first" slot, and put the 512 in the "second" slot, I get the startup sound, and then nothing else--no HD spinup, nothing. I don't know what other recourse I have. I want to make this work, but wanting something doesn't make it happen...

HP Pavilion p7-1414 memory upgrade issues

I just purchased a HP Pavilion p7-1414 desktop. This system has an AMD A8 processor and supports up to 32gb ram. I recently purchased a new 8GB stick of Kingston KHX16C10B1R/8 1600MHZ DDR3 NON-ECC HYPER X BLUE. This memory will only clock 1333MHZ no matter what slot I install it in. This machine has 4-memory expansion slots. The machine runs fine but the memory will not clock up to advertised speed.
Any input is appreciated. The memory in brand new. I also have 2 new 4MB sticks of Kingston ddr3 1600MHZ memory and they both clock fine @ 1600MHZ.
Thanks!

It seems likely that the HPSA isn't reading the information correctly.
If the BIOS shows the correct reading and passes the memory test, I would say that it's operating normally.

MSI 6178 Memory Upgrade Issue

Hi
I've recently tried installing a single stick of 128Mb PC133 RAM on to my 6178 but it only detects it as 64Mb. All the chips are on one side of the stick.
I was hoping to flash my AMI BIOS (ver 1.9) with a Award 2.1 BIOS, but i keep getting a "The program files part number does not match with you system" message.
What am I doing wrong? Am i going about this the right way?
Any help would be most appreciated.
Cheers
Jigsaw

I have the same problem with MS 6163by master. it is very difficult to find a sdram that will work good on our old pcs. I tryed so many different rams... now i have 512MB working ram. I was hope to get more but...without sucess. If you look in your book of motherboard you will find the information which rams are supported and how many chisps it must have attached on it.
Good luck !

Issues with sleep/wake feature after 16GB RAM upgrade in my MacBook Pro. Any thoughts?

Just installed a 16GB RAM upgrade in my MacBook Pro and now it doesn't wake up on it's own when I open the lid. I have to press the power button. It works fine with a smaller RAM upgrade.
I've tried putting in just one of the 8GB modules and the sleep/wake feature works as normal so there isn't a problem with the RAM modules that I've bought (Crucial.com). I've also put in a combination of Apple's original RAM and the new ones to make 10GB (8GB + 2GB), and the sleep/wake feature works on that too. Put both 8GB modules back in and the MacBook doesn't wake up when I open the lid, I have to press the power button to wake it up. The MacBook itself works fine, super fast and the memory is recognised on 'About This Mac', the sleep/wake issue is the only problem I'm having with the 16GB RAM.
Any thoughts on this? Has anybody else had this sleep/wake issue like this when upgrading RAM?

I upgraded my early 2011 MBP to 16 gigs with Crucial. My machine would not sleep properly, because when I tried to wake it, it would wake from its hibernate image file. This is the issue I've seen here in this list.
I tried all the suggestions I saw on these groups. Nothing helped. I contacted Crucial, who suggested that if their RAM was defective, they'd replace it per their warranty process. I needed some proof it was their RAM causing the problem.
I put the original 8 gigs RAM back in the machine (2 4 gig sticks), and it behaved normally. I then put one stick of Crucial RAM in, all by itself. The machine behaved normally. I put the other stick of Crucial RAM back in, and took the first one out. The machine would not properly sleep and wake from sleep. This proved that one stick was causing the problem, and the other was not.
Defective RAM!
I then requested and received an RMA from Crucial to send the defective RAM back. They paid shipping. I got new sticks of RAM about a week later. These new sticks of RAM work properly. No sleep issues.
I'm surprised and disappointed to say that this is not the first time I've received defective RAM from Crucial. I've purchased from them for years, and had GREAT service and received high quality products. The past couple years my experience has been different.
I'm still pretty steamed about this, as I spent a great deal of time trying to diagnose the problem and fix it. I don't really have that kind of time to waste. My expectation was that their RAM was high quality, and unlikely to be at fault.
Perhaps this is just a bad batch of RAM. I get that. I can forgive them once. But this has happened twice in the past three years. I'll look elsewhere for my next memory purchase.
Keep in mind that their customer ratings are generally very high. My experience is probably isolated.

Mainstage 2: Apparent issues after memory upgrade

I'm wondering if upgrading from 4GB to 8 has caused some problems. After installing the proper memory upgrade (Crucial) I've had this result:
1. The increased memory shows up in 'About this Mac'. So far so good.
2. When I open a large Mainstage concert that used to show the RAM usage as very high, the RAM bar does not really look any shorter. This surprised me. I expected all sorts of headroom there that I'm not seeing. Disappointing.
3. This is the real problem: more often than not, when I go to save a concert, I get the horizontal progress bar... forever. It will simply not save. Eventually I force quit it, and end up with an autosave version. This is a real problem.
4. Another, lesser, new thing is that there have been occasional, sporadic display glitches. Sometimes a Patch name will be all scrambly, or I'll open an software instrument to edit and just get a white box in the shape of the window.
I guess my question is: although I'm indeed seeing 8GB RAM instead of 4, could there be an issue with the memory that might cause this? Any ideas as to how to troubleshoot this would be greatly appreciated.
Mainstage 2.1.3
OS 10.6.6
MacBook Pro 2 GHz Intel Core i7
8GB 1333MHz DDR3

That did it, thanks. I think I had read about that a while ago, and forgotten entirely. Everything seems to be as it should.
This is not the frst time you've helped me out, Blue. Thanks again.

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

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 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 DV7T-3000 (NQ339AV)

Hello,
I have a Pavilion DV7T-3000 with i7-820QM Processor. I am planning on a memory upgrade. Has any one tried upgrading it to 16GB RAM ? (2 x 8GB). As per specs it can only go up to 2x4 GB.
Thank you for for any feed back.

I believe you should try to PM a level 8 or higher expert here and see if they will access someone from HP.
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16GB Memory upgrade issue

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