FB DIMM Question (RAM)

I currently have a 2007 Mac Pro with 2 GB of memory and I am looking to upgrade. I was interested in getting an 8GB stick when I saw an article about the FB DIMM setup which suggest no more or less than 4 modules to run at optimal speed.
My question is, does this me 4 sticks of RAM, total, at any size. Could I have a configuration of two 1 GB, and two 4 GB for a total of 4 modules and 10 GB ram?
http://www.maconintel.com/news.php?article=209

In your model RAM must be installed minimally in matched pairs, optimally in matched quads. That means two or four modules each of which are the same. You cannot put an 8 GB module in your model. 4 GBs is the largest module compatible, I believe, although you can certainly try two 8 GB modules. Who knows, they may work. Or not.

Similar Messages

I installed two 512 dimms of RAM and now my monitor doesn't work!

My G5 tower came stock with 2 dims of 256K. I just installed an additional two 512 Dimms and turned on the computer, only to find that there is now NO picture! I took out the dimms and turned it on with just the originals installed and same thing. I blew out the entire cabinet with compressed air and turned it on again and same thing...nothing! It seems that my computer is fried. Is this possible? Is this a common problem when installing RAM? I'm sure the dimms are in all the way. They fully click in and fit just fine. Anybody have any suggestions, before I take my computer to a MAC store and probably pay way to much to have it fixed? Thanks.

Hi! Did you buy ram that was guaranteed to be for the Mac model? Second, sometimes after messing with hardware a pmu/smu reset is necessary. The early G5's have a tiny button on the motherboard that you should push once with everything unhooked. On the later ones unhook everything (all external cables) and let it sit for 30 minutes. Tom
http://support.apple.com/kb/HT1436?viewlocale=en_US

[Question] RAM types Corsairs vs Kingston

Hi,
I plan to buy a dual channel set for my MacBook (late 2007 model);
2.16 GHz
667 MHz DDR2 SDRAM
CORSAIR 2GB 200-Pin DDR2 SO-DIMM DDR2 667 (PC2 5300) Laptop Memory Model VS2GSDS667D2:
http://www.newegg.ca/Product/Product.aspx?Item=N82E16820145172
or
Kingston 2GB (2 x 1GB) DDR2 667 (PC2 5300) Dual Channel Kit Memory for Apple Notebook Model KTA-MB667K2/2GR:
http://www.newegg.ca/Product/Product.aspx?Item=N82E16820134558
I don't which one to choose.
Suggest.

No, you got confused in this:
SDRAM (Synchronous dynamic random access memory) is a description of the interface to the memory http://en.wikipedia.org/wiki/SDRAM
SO-DIMM (or SODIMM) (Small outline dual in-line memory module) is a description for the form factor of a RAM module http://en.wikipedia.org/wiki/SO-DIMM
SDRAM and its successor (DDR1-3 -RAM) can come in the form factor of a SO-DIMM or in the form factor of a DIMM module.
Regards
Stefan

General Macbook Questions (RAM upgrade, refurbished...etc)

I'm strongly considering getting a black macbook (aka I really want one, but am in the process of saving up some money), but I had a few questions that I can't seem to find the answers to.
1. Refurbished macbooks. If I were to buy a refurbished macbook, is the system "reset" (sorry, cant think of a more appropriate word) or anything? How do I explain this better...although the macbook has been used, when I open it up for the first time, will I get the set-up screen and such? Or will it be already-functioning? Essentially, am I getting a "new" macbook with used parts, or a used macbook?
2. If I buy the refurbished black macbook on the Apple Canada website, will I be able to upgrade the 1GB of RAM to 2GB? If so, can Apple install it for me? Can I have it done at an Apple store location? And how much would that cost?
3. Are there refurbished macbooks on sale at Apple locations (i.e. if anyone's from toronto, at the Eaton Centre or Yorkdale)? If so, are they the same as the ones on the Apple website, or are they different?
4. How noticable is the difference between 1GB and 2GB RAM? Because I would want my macbook to be fast and function properly, but - considering my current desktop is 256MB of RAM - I'm not sure if I need it. I'll mostly be using internet/msn/microsoft office/occasionally photoshop.
Sorry for the long post, and thanks for any help in advance!
Message was edited by: iMorgan
Message was edited by: iMorgan

"Refurbished macbooks. If I were to buy a refurbished macbook, is the system "reset" (sorry, cant think of a more appropriate word) or anything? How do I explain this better...although the macbook has been used, when I open it up for the first time, will I get the set-up screen and such? Or will it be already-functioning? Essentially, am I getting a "new" macbook with used parts, or a used macbook?"
You're getting a "new" MacBook with warranty that's been reset/refurbished under close scrutiny.
"If I buy the refurbished black macbook on the Apple Canada website, will I be able to upgrade the 1GB of RAM to 2GB? If so, can Apple install it for me? Can I have it done at an Apple store location? And how much would that cost?"
This is something that you can do yourself: http://docs.info.apple.com/article.html?artnum=303721 and probably save money.
"Are there refurbished macbooks on sale at Apple locations (i.e. if anyone's from toronto, at the Eaton Centre or Yorkdale)? If so, are they the same as the ones on the Apple website, or are they different?"
As far as I know, Apple only has refurbished items available online.
"How noticable is the difference between 1GB and 2GB RAM? Because I would want my macbook to be fast and function properly, but - considering my current desktop is 256MB of RAM - I'm not sure if I need it. I'll mostly be using internet/msn/microsoft office/occasionally photoshop."
You will notice a considerable change from 256MB and you probably will be fine with 1GB. If your needs change or if you feel that you need more RAM, increase it to 2GB at that time.
I have a refurbised WhiteBook that I increased from 512MB Ram and a 60GB HD to 2GB RAM and a 160GB HD. I love it!

DIMM 3 and DIMM 4 RAM slots won't work

Good evening,
I bought an Z77A-G43 board, together with an i5 3570K and 2x4GB ADATA-1600 RAM. When I first started my new system, it didn't boot. The fans start spinning, than the system shuts down after a few seconds, without showing anything on the screen nor beeping. I figured this only occurs when DIMM 3 or DIMM 4 are used. (For Dual-Channel I have to use them.) What I tried to resolve the issue:
- Reseated CPU
- Disconnected all peripherals (HDD, ..)
- Successfully flashed the BIOS to version 2.8
The board recognized my RAM as 1333 and 1.65v, while it is labeled as 1600 with 1.5v. I tried:
- Manually trying all combinations (1600+1.65v, 1600+1.5v, ..)
- Activating "Extreme Memory Performance", which now detects my RAM properly on "auto" (1600+1.5v)
All this did not change the fact that my system doesn't boot when using the third or fourth RAM slot. (Which are shown in BIOS as first and second by the way, if that is to any relevance.)
Is there anything I can still try? Or do I have to send the board back? :(

Remove CPU and check the MB CPU socket for bent/damaged pins (good lighting and magnifying glass is needed). That is primary cause of problems with slots 3 & 4 RAM on s1155 MBs. Memory controller is in CPU and there have been some people that have had bent pins in the socket being the problem. Usually they can be straightened out with not much trouble.
Here are a couple of examples:
Edit: I see xmad posted just as I was getting my pictures for my reply.

Upgrade questions - Ram and HD

Considering adding some ram and a new HD to my MacBook.
It's a late 2008 Unibody, 2.4 GHz.
I currently have 4GB of Ram and a 250GB HD, which I believe spins at 5400 rpm (how do I check that?).
My understanding is that this machine can take 6GB of ram. I'm assuming I can just buy one 4GB stick and replace the 2GB stick with it, correct? If so, where should I buy it from and what should I be looking for? Also, what performance increase can I expect - specifically in Photoshop CS5 and LR3?
Will getting a faster spinning drive increase performance as well (for PS and LR)? If so, what should I be looking for there?
Thanks for any/all help.

To find out about your hard drive open System Profiler to find the make and model of the drive then go to the manufacturer's site to find specifications for the particular model.
Adding more RAM will not make the computer perform faster. It simply allows you to run more applications concurrently or provides more RAM to running applications. If you are now running out of RAM then adding more will help. If you aren't running out of RAM, then adding more simply lets you run more applications concurrently. To add more RAM to reach the 6 GB limit you will need one 4 GB module and one 2 GB module. Look in the user manual for information on the specific type of RAM you need. Most likely PC-5300 667 MHz SDRAM 200-pin, but check your manual. Sources of RAM I recommend are Data Mem and OWC.
Getting a faster and/or larger hard drive will improve the performance of data access and may improve boot time. An excellent replacement would be a Seagate X500 which is a 7200 RPM Hybrid drive having 500 GBs of storage plus 4 GBs of SSD memory to improve the drive's performance. It's not as fast as a normal SSD, but it's faster than a standard drive. Cost is around $160.00 on the street. OWC sells a nice bundle of drive, enclosure, tools, and software. You can replace the existing drive then put the old drive in the enclosure so you can boot the computer then partition and format the new drive and clone your old drive to the new one.
Extended Hard Drive Preparation
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID then click on the OK button. Click on the Partition button and wait until the process has completed.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.
Clone using Restore Option of Disk Utility
1. Open Disk Utility from the Utilities folder.
2. Select the destination volume from the left side list.
3. Click on the Restore tab in the DU main window.
4.Check the box labeled Erase destination.
5. Select the destination volume from the left side list and drag it to the Destination entry field.
6. Select the source volume from the left side list and drag it to the Source entry field.
7. Double-check you got it right, then click on the Restore button.
Destination means the new internal drive.
Source means the external startup drive.

Memory upgrade question / mixing dimms

Hi ,
i`m wanting to add another 1gb of ram to my 875P Neo-FIS2R. I currently have 2 x kingston kvr400x64c25/512 512mb ddr400 cl2.5 and want to add
a couple more. I`ve seen slightly cheaper (and in stock) the VR400X64C3A/512 (512MB 400MHz DDR CL3 Non-ECC 3-3-3 DIMM).
question is will this new pair work ok with my existing pair?
thanks in advance
Paul

Here's a link to the Test Report for your board. Scroll down to the memory pic and click on it. Then scroll down to the PC3200 area, that will list approved RAM for your mainboard.
http://www.msi.com.tw/html/products/mainboard/testreport_pdf/6758/memory.pdf

MacBook (unibody late 2008) - RAM question

Hi All,
I am fairly new to this community but from I have seen so far there is a lot of knowledge contained in these threats.
I have a MacBook (unibody late 2008) with the following specifications:
Hardware Overview:
Model Name:          MacBook
Model Identifier:          MacBook5,1
Processor Name:          Intel Core 2 Duo
Processor Speed:          2 GHz
Number of Processors:          1
Total Number of Cores:          2
L2 Cache:          3 MB
Memory:          2 GB
Bus Speed:          1.07 GHz
Boot ROM Version:          MB51.007D.B03
SMC Version (system):          1.32f8
Serial Number (system):          W8******1AQ
Hardware UUID: ******
Sudden Motion Sensor:
State:          Enabled
After installing Lion a few weeks ago everything has significantly slowed down I feel that a revamp boosting RAM and memory would help. I currently have 2GB RAM (2 x 1GB) and 160GB hard drive. Hard drive details below:
NVidia MCP79 AHCI:
Vendor:          NVidia
Product:          MCP79 AHCI
Link Speed:          3 Gigabit
Negotiated Link Speed:          1.5 Gigabit
Description:          AHCI Version 1.20 Supported
FUJITSU MHZ2160BH FFS G1:
Capacity:          160.04 GB (160,041,885,696 bytes)
Model:          FUJITSU MHZ2160BH FFS G1
Revision:          0081008C
Serial Number:                  K64******N6T
Native Command Queuing:          Yes
Queue Depth:          32
Removable Media:          No
Detachable Drive:          No
BSD Name:          disk0
Medium Type:          Rotational
Partition Map Type:          GPT (GUID Partition Table)
S.M.A.R.T. status:          Verified
Volumes:
disk0s1:
Capacity:          209.7 MB (209,715,200 bytes)
BSD Name:          disk0s1
Content:          EFI
Macintosh HD:
Capacity:          159.18 GB (159,182,127,104 bytes)
Available:          16.87 GB (16,865,333,248 bytes)
Writable:          Yes
File System:          Journaled HFS+
BSD Name:          disk0s2
Mount Point:          /
Content:          Apple_HFS
Recovery HD:
Capacity:          650 MB (650,002,432 bytes)
BSD Name:          disk0s3
Content:          Apple_Boot
I have done some research on line and I have the following questions:
RAM
1) What is the maximum RAM my mac can take without causing problems. Apple mentions that the maximum RAM is 4GB (2 x 2GB) but I have seen mentioned in threats that up to 8GB have been installed.
2) The RAM quoted in the specs from apple is DDR3 PC3-8500/DDR3-1066. Could I use a faster chip such as DDR3 PC3-10600/DDR3-1333 or is this upgrade not advisable.
Hard Drive
1) Is there a limit to the maximum capacity re hard drive. The maximum apple used to offer this model was 320GB. I would ideally would like to go up to 500GB to 1TB.
2) The specs of my existing drive are: 160GB 5400-rpm Serial ATA hard disk drive. Could I get a faster disk, say 7200 rpm to increase performance and will this have any significant impact on battery life and heat?
Further more any recommendations in terms of any of the above welcome.
A lot of information but I wanted to offer all the info needed for meaningful advice.
Thanks in advance.
<Edited By Host>

Hi Christos77,
I also have a late 2008 13 inch unibody MacBook - mine has the 2.4GHz Intel Core 2 Duo processor and a 250GB Toshiba hard drive. At the beginning of January I upgraded my RAM from the original 2GB to 8GB from OWC and it made an enormous difference to the functionality of my machine. In fact, it turned it from being almost unusable to working in a reasonable way.
The recent death of my Time Capsule has prompted me to re-think my setup and, basically, what I need is a drive with greater capacity than my original Toshiba 250GB that the MacBook shipped with. I'm currently working with only 11.65GB of Available disk space so I need to do something pretty quickly.
I've been researching over the past couple of days and decided that my need for storage is greater than my need for speed so I've decided to replace my existing HDD with a new HDD instead of going down the OWC 'Data Doubler' route.
I, too, thought that the 750GB WD Scorpio Black 7200 rpm drive would be the best (and most cost-effective) solution but I've read reports from some users that it was either noisy and/or hot. However, none of these comments came from users with a late 2008 MacBook.
I would be very grateful if you could confirm that, after almost twelve months, you're still happy with your WD Scorpio Black drive in your late 2008 MacBook?
One last question ... when you now check the Serial ATA details in the System Report, does it still show your new WD hard drive having a 'Negotiated Link Speed' of 1.5 GB or is it now SATA 2 (i.e. 3GB)?
Many thanks for your help.
Cheers
Tricia
BTW I've been running OS X 10.7.x on my system since it came out - no problems at all with it - am thinking of upgrading to 10.8 because I've read that it takes a little less space and is more efficient in memory management - but will have to check a few more things first before I decide to do that!
Message was edited by: Patricia Henwood to add OS details

Lombard G3 Ram swap

I have an old clamshell which I have sorted and works fine (with a little help from the forum members - thanks guys)
I also have a g3 lombard which has a 128 ram in the bottom ram slot and 128 ram in the top, i thought i would upgrade the ram but before doing this i thought i would try the clamshell ram as its 144pin 256mb so I put it in the top slot and took out the 128mb restarted but the ram still reads 128 top and 128 bottom SO I took the top ram out and the bottom and fitted the 256 to the bottom and left the top empty - the profile now shows 128mb in the bottom and top empty - any ideas?
Im running panther - thanks
ps: couldn't find a ram section in the forum for the lombard g3 powerbook

Hi Tom
That was the link for the wallstreet but I then went to details for the lombard and answered my own question.
http://lowendmac.com/pb2/lombard-powerbook-g3.html
Low density DIMMs (16 memory chips on the card) in both slots;
high density DIMMs (8 RAM chips) will only be recognized at half their capacity.
So thats why when i put the 256mb from the clamshell it only registers as 128mb
Checked on the details for the clamshell on the same site and it doesn't make any reference to low or high density so it must not be as picky - interesting though
Have marked the question as been answered so thanks again guys

RAM upgrade for 2010 Macbook Pro

I have the 13" Macbook Pro 2010 unibody model which I bought in May 2010. It has 4GB RAM installed when I bought it. I purchased two (4GB) RAM DDR3 204pin 1333Mhz. Will this be compatible? I want to upgrage the RAM to 8GB.

Hey boss I checked MacTracker and for the Early 2010 13" MBP (your model) it showed these specs:
2.0 or 4.0 GB PC3-8500 (1066 MHz) DDR3 SO-DIMMs
Max RAM 8.0 GB
For the late 2010 13" MBP it showed these specs:
2.0 or 4.0 GB PC3-8500 (1066 MHz) DDR3 SO-DIMMs
Max RAM 4.0 GB
To answer your question no you cannot install that memory you mentioned. It could cause damage to both the memory and to your macbook pro.
Download MacTracker it is a free app that shows specs for almost every Apple device made.
I hope this has helped you.

Installing ram boot loop

I got recently 16 gb of ram and I installed 12 gb fine in DIMM 2,3,4 but when I put ram in DIMM slot 1 then no display comes on and pc is in boot loop And if i remove from DIMM 2 ram and put in DIMM 1 then the pc boots fine with only 3 sticks of ram. All rams are good and all slots are fine aswell No issiues in ram slots nor the ram. So how do I get the bios to recognize and boot my pc with 4 sticks of ram ? EDIT: Basically what im saying is i cant use 4 ram sticks but only 3 if i put fourth one in then the pc will go in boot loop with no display
My motherboard is B75A-G41 and yes all pins on cpu part are straight. Ram model is ASint DDR3 4gb-1333 SLA302G08-EDJ1C 1233

Board: MSI B75A-G41
BIOS: Newest Available
VGA: ati radeon hd 7750 1gb gddr5 OC
PSU: generic one with 80+ bronze cant remember company name
CPU: Intel pentium G850 2.9ghz dual core oc 3.1 ghz
MEM: 4x ASint ddr3 4gb-1333
HDD: 500 gb samsung 7500rpm hdd
OS: Windows 8.1 64bit and windows 7 64bit
CASE: old early 2000 case for nostalgia :3
EDIT: also tried the cmos reset 2 times already and trying all rams individually was the first thing i did. I remember when i modified the timmings in bios then the pc started fine but didnt recognize 1 and 2 slots and when i changed the mhz to 1066 then again all started fine but didnt just recgonize the 4th stick in dimm 1
2nd EDIT: If it turns out i cant get them 4 rams running so is it okay to have only 3 sticks in pc?

RAM for 2003 Power Mac?

I am selling 2GB - (4) 512 MB DDR DIMM,P RAM for Power Mac G5 (2005) on ebay since I upgraded to more RAM. Someone asked me if this would work on their Power Mac G5 from 2003. I wasn't sure. Any advice? Thanks!

I would go to http://www.crucial.com/ and select the the specs for by model and processor speed to see if they match up with your ram. I am a PC Tech and I use this site frequently for max ammount ram, number of memory banks and so on. The ram Crucial sold me for my Dual Core G5 works rock solid so I trust thier research.
DC G5 Power Mac 2 GHZ Mac OS X (10.4.4)

MacBook Pro 1 GB RAM upgrade...which type?

Hi,
I am interested in the MacBook Pro, but need some advice on RAM upgrades.
What is the difference between the 2 types of RAM offered on the Apple site?
1 GB 667 DDR2 2x512 SO-DIMMS
1 GB 667 DDR2 1 SO-DIMMS
I would only be able to afford one of these above options and would appreciate any insight that anyone could offer.
Thanks much!

A Macbook Pro is only upgradable to 2gb and has only two SO-DIMM slots Ram ie. 2 * 1 GB ram modules.
If you opt for - 1 GB 667 DDR2 2x512 SO-DIMMS - you use up both the slots(each with a 512 mb ram)
If you opt for - 1 GB 667 DDR2 1 SO-DIMMS -only one is used up. and one it still free.
and when you got the bucks for an upgrade, or when the OS is calling for one, you can pop one in. And max it to 2GB
So, a 1 GB 667 DDR2 1 SO-DIMMS is the best deal.

Flex 2 14" Do I really need remove keybord for upgrading RAM

Hi all,
I just want to know if I really have to remove the keyboard for installing a 2nd DIMM of RAM. I read the HMM but it doesn´t make sense for me.
Can anybody confirm that it is really absolutely necessary?
Best Patrick
Solved!
Go to Solution.

Hi Patrick,
I don't have one of these, but the HMM seems pretty clear. In order to remove the 1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover (the "back") you have to remove some screws that are under the keyboard in addition to those on the bottom.
The HMM also indicates two memory slots.
Z.
The large print: please read the Community Participation Rules before posting. Include as much information as possible: model, machine type, operating system, and a descriptive subject line. Do not include personal information: serial number, telephone number, email address, etc. The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored. ... GeezBlog
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Ram slots not working after CMOS reset

Im using MSI K9N Neo V2 mb, and it was doing fine until i reseted CMOS. Now 3 out of 4 ram slots are not recognized by BIOS nor Windows. Im sure that ram memory is ok, cause ive checked all of it by replacing it between ram slots, and they're only working in slot nr 4.
I know that the MB is old, but everything was working fine, and suddenly went wrong after CMOS reset
Things i did to fix:
Updated BIOS
Msconfig memory uncheck box
Cleared CMOS with jumper
Replaced CMOS BAT
Checked if smth's wrong with cpu
Cleared RAM slots with rubbing alcohol
System wont even boot without memory in DIMM 4 (ram slot 4), and BIOS only recognizes memory in DIMM 4
This is really frustrating, because there is no reason for smth to not work all of a sudden
Any help? Tnx
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

There is a known issue with Powerbooks with the lower memory slot failing, and it sounds like yours may be starting to fail. At one point there was an Apple recall for a small sliver of Powerbook systems to fix that.
The alternatives are to run with 1GB in the upper slot, try one of the internet vendors that say they can fix that (check references), or install a used logic board. I don't believe Apple is repairing Powerbooks anymore, so if you want to buy a used logic board, you'll need to install it yourself, or perhaps an Apple Authorized Service Provider would be willing to do the work.

FB DIMM Question (RAM)

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