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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Similar Messages

Memory upgrade on Lenovo 3000 j100 (product number: 8254-E6G)

First of all, sorry for my English (I'm trying to improve it)
I run a Lenovo 3000 j100 Desktop with 1GB RAM with two modules of 512MB each one installed on the two slots that the mother board has.
I want to upgrade that memory to 4GB, but I have some doubts about that upgrade that I need to solve before buying the new memory additions.
I've read some commentaries about this topic and there are people who say that the maximum memory size for this models of Lenovo is 2GB RAM, I mean one module of 1GB on each slot.
However, the manual says that these desktops can be upgraded to 4GB RAM.
In consecuence, which is the maximum memory size supported by my Desktop's mother board ?
Sorry for my English again, I hope someone could help me because I wrote this question to Lenovo support and this service answered that I had to read the manual, they didn't solve my question.
Thank you for your attention.

Many thanks for your answer, but the type of memory of my computer is not the same as yours.
My Lenovo 3000 j100 memory sticks are not DDR2, they are DDR.
They have a sticker with this text on:
NT512D64S88B0GY-5T
512MB DDR-400MHz-CL3
PC3200U-30331

Memory upgrade for Lenovo 3000 V200 - only 2Gb seen :(

I bought 2 Transcend DDR2 800 SO-DIMM modules 2Gb each to upgrade memory on Lenovo 3000 V200 notebook.
When I installed them, BIOS (and Windows) sees only 2Gb instead of 4Gb (i use x64 OS so no prob with OS here).
When I install one of new modules and original 1Gb that was in notebook initially - only 1Gb seen instead of 3.
I already checked that all memory modules are OK, both memory slots (if used only one) are OK too.
But when both slots used together only lowest volume memory module is seen.
BIOS update to latest awailable (6th release, ...60WW) didn't help.
In specification stated that this model support up to 4Gb memory but I can't force it to support even 3Gb, only 1 or 2.
Is it possible to do something in this situation?

Probably the Transcend memory is not compatible, it does happen.

Memory Upgrade for Lenovo 3000 Notebook N200 (Type 0769)

Hi I want upgrade my memory from 1Gb to 4Gb (x2 slices of 2Gb).
pc spec:-
s/w MS XP pro sp3.
Original mem
1off Hynix 1Gb 2Rx16 PC2-5300S-555-12 (Works fine)
1st mem pair tried
2off manufact? 2Gb PC2-5300 128X8 200 SODIMM
2nd mem pair tried
2off Hynix 2Gb PC2-5300 128X8 200 SODIMM
Ive tried two lots of memory from Mr Memory and both get stuck on the Lenovo boot screen. Ive tried all the combinations incl slots with same effect. Both pairs were not faulty as they tested ok at Mr Memory once returned.
Wondered if I need to upgrade the Bios or anythng else to run 2Gb or 4Gb of memory?
Anyone else seen this problem?
Any help would be most gratefully received!
Cheers

hi yan_c,
Welcome to the Lenovo Community.
Have you tried to check the timings of the 2x2GB RAM if they are identical to the original 1GB RAM? You can use CPU-Z to check the timings of the 1GB RAM inside of Windows. As for the 2x2GB RAM, the timings should be in the packaging material.
Sample timings:
Spoiler (Highlight to read)
Source: http://www.notebookcheck.net/Review-Lenovo-3000-N200-Notebook.9088.0.html
Source: http://www.notebookcheck.net/Review-Lenovo-3000-N200-Notebook.9088.0.html
It's possible that the Memory Reference Code under the BIOS can't initiate the RAM if it has different timings. Flashing the BIOS would be the second step in this scenario.
Hope this helps.
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Memory upgrade:. Lenovo 3000 N200 0769-B5G

I just bought
new memory for upgrade.
My old was: 2 X 512MB. PC2 5300 DDR2 667
The new: 2 X 2GB. PC2 5300 DDR2 667.
When I installed the new memory the computer is turn on, i can enter to bios ( i see that it reconized 4gb)
but i can't boot the computer after the bios. the system stuck.
I can only boot the computer with 1 X 2GB , and 1 X 512MB (the old memory),
and also the 2GB Sim must be in the upper slot, if not it will not boot.
So now the system is running with 2.5GB...
what can be the issue?
btw: I upgraded the bios to new one. V 3.03
Thanks,
Eli.

HE meant to say this software is usefull for testing whether the memory chips are still "good" for running (.i.e. were not damaged by static electricity while manually handled)
if the test shows that they are not good, then buy new one
if opposite, then something is wrong with your laptop (double check on ther laptop anyway)
Message Edited by registoni on 02-26-2009 08:02 AM

Physical Memory Upgrade [SAP, Oracle parameter changes]

Hello Guru,
Good day!
I'm not sure if I'm in the correct forum, please bare with me if I'm not.
We are actually planning to increase our Production [Physical Memory] server from its current size 15360GB including [oracle, SAP & OS] to 44GB memory. Do you have any idea how can we calculate to the most needed SAP / DB parameter should be increase after we allocate the 44GB in preparation for Go-Live. Below are details of my systems [oracle version, kernel, R/3 System, OS version, SAP parameter and DB parameter.
Reason for memory upgrade: will create two client in one system with a different number of users and different plant e.g. America / Canada
======================================================================
SAP R/3 Version: SAP 4.6C
Oracle Version: 10.2.0.4.0
OS Level: AIX 5.3
orapaa> oslevel -g
Fileset                                 Actual Level        Maintenance Level
bos.rte                                 5.3.8.0             5.3.0.0
Physical Memory
Real,MB   15360
======================================================================
kernel release               46D
kernel make variant       46D_EXT
compiled on                  AIX 1 5 0056AA8A4C00
compiled for                  64 BIT
compile time                  Aug 17 2007 10:57:49
update level                  0
patch number                  2337
source id                     0.2337
======================================================================
orapaa> prtconf
System Model: IBM,9117-MMA
Machine Serial Number: 06DDD01
Processor Type: PowerPC_POWER6
Processor Implementation Mode: POWER 6
Processor Version: PV_6_Compat
Number Of Processors: 4
Processor Clock Speed: 4208 MHz
CPU Type: 64-bit
Kernel Type: 64-bit
LPAR Info: 9 SWT_AMR_SADCB335_SAP_HA_PRI
Memory Size: 15360 MB
Good Memory Size: 15360 MB
Platform Firmware level: Not Available
Firmware Version: IBM,EM340_095
Console Login: enable
Auto Restart: true
Full Core: false
======================================================================
Our current used SAP parameter
Profile parameters for SAP buffers     Parameters Name               Value     Unit
Program buffer
                    abap/buffersize               850000     Kb
CUA buffer
                    rsdb/cua/buffersize               10000
Screen buffer
                    zcsa/presentation_buffer_area     20000000 Byte
Generic key table buffer
                    zcsa/table_buffer_area          100000000 Byte
Single record table buffer
                    rtbb/buffer_length               60000
Export/import buffer
                    rsdb/obj/buffersize               40000      kB
Table definition buffer
                    rsdb/ntab/entrycount          30000
Field description buffer
                    rsdb/ntab/ftabsize               60000     kB
Initial record buffer
                    rsdb/ntab/irbdsize               8000     kB
Short nametab (NTAB)
                    rsdb/ntab/sntabsize          3000     kB
Calendar buffer
                    zcsa/calendar_area          500000     Byte
Roll, extended and heap memory     EM/TOTAL_SIZE_MB          6144     MB
                    ztta/roll_area               6500000     Byte
                    ztta/roll_first               1     Byte
                    ztta/short_area               1400000     Byte
                    rdisp/ROLL_SHM               16384     8 kB
                    rdisp/PG_SHM               16384     8 kB
                    rdisp/PG_LOCAL               150     8 kB
                    em/initial_size_MB               4092     MB
                    em/blocksize_KB               4096     kB
                    em/address_space_MB          4092     MB
                    ztta/roll_extension               2000000000     Byte
                    abap/heap_area_dia          2000000000     Byte
                    abap/heap_area_nondia          2000000000     Byte
                    abap/heap_area_total          2000000000     Byte
                    abap/heaplimit               40000000     Byte
                    abap/use_paging               0
======================================================================
Oracle Parameter
Oracle Parameter Name     Value     Unit
SGA_MAX_SIZE          6192     MB
PGA_AGGREGATE_TARGET     400     MB
DB_CACHE_SIZE           0
SHARED_POOL_SIZE     960     MB
LARGE_POOL_SIZE          16     MB
JAVA_POOL_SIZE           32     MB
LOG_BUFFER          14246912
db_block_buffers          655360
Thanks and regards,
Mike

I feel the best way to get the parameters which needs to be adjusted is to go for EarlyWatch Check after increasing the Physical Memory of your SAP system, as we cannot say how and which parameters needs to be checked and changed.. as there is some dependiblity also between the parameters...
All the best !

AC DC Wire Harness - HP dv7t-3000

Hello,
Was wondering is anyone would know where I can find the part number for the AC/DC Wire Harness on an HP dv7t-3000 laptop? When disassembling the laptop to change the cooling fan, I accidentally pulled the two wires from the small wire harness. This is the internal wire with the AC jack at one end and a six pin harness and a two pin harness at the other end, each which plug into the motherboard. I called HP Parts, but they didn't understand what I wanted and couldn't find the wire/jack on their user replaceable parts list. Elsewhere on the net, I have found a few wires, but not any exactly like the one I have. Most parts inside the machine had a part number, but this did not.
My product number is: NQ339AV
Any help would be appreciated.
Thanks!
This question was solved.
View Solution.

Thanks so much for the response. That is much closer than the others I have seen. Unfortunately, my jack has has a second black and red wire that goes into a second two pin harness. So, it has the same wires in the same configuaration and harness as the one pictured on ebay, but it also has a second two pin harness containing a black and red wire. All wires - 6 from one harness and 2 from the second originate from that jack - the same one pictured on ebay. I'll keep looking, but if you see any thing else, please ket me know.
Thanks again,
Brian

What is the difference between the HP Pavilion dv7t models NQ339AV and NZ584AV ?

My dv7t 3000 CTO just arrived this morning. The order summary said I was getting a model NZ584AV. The delivery invoice and product says what was delivered is a NQ339AV.
How do I find out the difference between these models?
By the way, it shipped two days early, and even though it didn't leave Shanghai until Tuesday, it still arrived in New Jersey Friday morning. Amazing!!!
David
David

Configure-to-order (CTO)
It's the same computer, just different nomenclature.
Carey Frisch
Microsoft MVP
Windows Expert - Consumer

Recommended memory upgrade

Can anyone recommend a good memory upgrade.I have a k7n2 delta2 mb,an athlon 3000 processor,and nivida fx5700 128mb video card.I am currently are using 2 sticks of 256 {512} 266 ddr ram pc2100 {I think}.Any suggestions? thanks

Quote from: traveler on 23-February-05, 06:06:12
Can anyone recommend a good memory upgrade.I have a k7n2 delta2 mb,an athlon 3000 processor,and nivida fx5700 128mb video card.I am currently are using 2 sticks of 256 {512} 266 ddr ram pc2100 {I think}.Any suggestions? thanks
Hi traveler!
I am quite happy with my Mushkin CL2 Blue memory. According to the Mushkin website they actually ran compatibility tests with a K7N2 Delta2. I have not had one problem caused by the memory!
ssbf

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 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 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 DV7T-3000 (NQ339AV)

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