Is PC2 6400 backwards compatible with PC2 5300 RAM?

Hello everybody,
I have a 2.2Ghz white MacBook, late 2007 model. It uses PC2 5300 RAM, and currently has 4 gigs. I have been thinking of maxing it out to 6GB, and was wondering if newer (and cheaper) PC2 6400 memory would work in it.
TIA

If you pair a PC2-6400 module with a PC2-5300 module, your computer should be fine.
However, not all MacBooks will take a matched pair of PC2-6400 modules.
So, you'll be best off just replacing one of your modules.
~Lyssa

Similar Messages

Will PC2 6400/800MHz work with my Early 2008 MacBook (4,1)?

I am having a problem with upgrading new RAM. I received new RAM sticks and they will not work with my Early 2008 MacBook(4,1) with OS Lion. Here are the stick specs:
Make: Kingston
Product #: KTD-INSP6000C/2G
Speed: PC2-6400/800MHz
Pin count: 200
Other attributes:
SODIMM
DDR2-SDRAM
Unbuffered
Non-ECC
The tech specs from Apple (http://support.apple.com/kb/SP5) say that the bus speed is 800MHz and the how-to-guide to install RAM (http://support.apple.com/kb/ht1651#link3) says that PC2-6400/800MHz should work. However, that how-to-guide lumps 2006-2009 models together. I don't know if all of those models are compatible with PC2-6400 AND PC2-5300 or if that is just the range within the models (e.i. 2006 takes 667MHz while 2009 takes 800MHz). On the Kingston website it lists only Dell products as compatible with the product number I am thinking that is the problem. The how-to-guide does say that 667MHz is the recommended maximum speed for my MacBook model. I just don't know now if 800MHz works for my MacBook. The current RAM sticks I have are the stock PC2-5300/667MHz.
The two Kingston sticks together: Doesn't boot up
One Kingston stick (tried both) with an old stick: Does boot up and work
One Kingston stick (tried both) completely by itself: Doesn't boot up
Here is my frustration, I bought some Kingston sticks (KTA-MB800K2/4G) that are supposed to be compatible with Apple from a company on Amazon and they shipped me the other product number since it is also PC2-6400/800MHz and they are out of stock of the specific product number I ordered. They are saying that the problem is that my computer can't take PC2-6400/800MHz and that the different product number is irrelevant. So, do I need to order different RAM sticks that are a lower speed or should this company ship me the original product number that I ordered?
Thanks!

No. Your model requires:
Maximum Memory
6.0 GB (Actual) 4.0 GB (Apple)
Memory Slots
2 - 200-pin PC2-5300 (667MHz) DDR2 SO-DIMM

The Bluetooth low energy protocol is not backward compatible with classic Bluetooth protocol. My iPhone 4s can not find my sonny in-dash player. However my iPhone 3GS does it. Very disappointed with this. Any idea how it can be fixed???

The Bluetooth low energy protocol is not backward compatible with classic Bluetooth protocol.
My iPhone 4s can not find my sonny in-dash player. However my iPhone 3GS does it. Very disappointed with this.
Any idea how it can be fixed??????

Hello,
You are correct, Blue tooth low engergy, BTLE.(only) devices are not backward compatible with Classic bluetooth and cannot connect.
However the Apple 4S and above have Bluetooth 4.0 support.. Hardware wise it has bothClassic Bluetooth, like the 3GS, as well as Bluetooth Low Energy. There is no good reason why your 4s cannot communicate to your Sony in-dash player using the Classic bluetooth that resides in the 4S.
I know that this does not answer the why it does not work, but it should work. Do you have to somehow re-pair the new phone up to the player? Not knowing the model of the Sony it is hard to investigate.
And I hate to ask but are you sure that the Bluetooth radio is on in the phone?
JT

XCelsius 2008 is not backward compatible with ver 4.5

Post Author: Joseph
CA Forum: Xcelsius and Live Office
I tried opening a project that was done with ver 4.5 but it just said that "Crystal Xcelsius is unable to load this file. This file may be corrupt or may have features that cannot be supported by this version of Crystal Xcelsius." So i guess I probably have to recreate the project in the 2008 version to take advantage of the new features available. So I imported the excel datasheet used in the old project to a new project in Xcelsius 2008 and tried recreating the objects from scratch. I had started with an accordion menu and two list boxes and then I decided to export to swf to test. However, the result was disappointing. I could only see the two list boxes but not the accordion menu. There was a message saying "Initializing..." that stayed. Does this mean I have to recreate the excel data from scratch as well?

Post Author: abrat
CA Forum: Xcelsius and Live Office
X2008 is backward compatible with CX4.5. But Jim is correct. There is a bug in X2008 which prevents it from opening some 4.5 models by double-clicking on the filename. They can be opened from the File > Open menu. This only affects opening the model.Due to the many changes between CX4.5 and X2008, the migration of old CX4.5 models is not clean. Differences will be seen. Most are cosmetic affecting only the look of the model. But some tidy up, color changes and re-alignment work must be done. There was no way to gain the benefits of X2008 and still keep CX4.5 models unchanged.Andy

Is The iPod Touch Backward Compatible With USB 1.1 Connections?

Hi. I intend to get the iPod Touch soon. But, before I make the leap, I'd like to know whether the iPod Touch is backward compatible with my older USB 1.1 connections. Any help will be appreciated here. Thank you.

Hello Castlegard,
As mentioned, the Minimum System Requirements for the iPod Touch does specify USB 2.0, see the requirements here:
http://support.apple.com/kb/TS1323
While it is theoretically possible to sync over a USB 1.1 connection, your mileage may vary. Consider that USB 1.1 has a transfer rate of 12Mbit/sec, where USB 2.0 is 480Mbit/sec, so USB 2.0 is basically 40x faster. Transferring small files may succeed, but when you try to get iTunes to update or restore an iPod Touch, it will be trying to push a 300MB file (approximately) through a 12Mbit pipe. Trying to do updates or restore via USB 1.1 will often result in iTunes timing out before the process is complete.
If I were to try to sync a 1.5GB movie over a USB 1.1 connection, I could probably go to downtown Sydney and have a nice dinner and attend a concert at the Sydney Opera House and still get back before the sync was complete. BTW, I live in California...
If your computer is a desktop tower, upgrading to USB 2.0 is a relatively inexpensive proposition. If you are not a handy person with a phillips screwdriver or electical devices, most computer dealers or resellers will install for a nominal fee.
Charles H.

CC Apps NOT Backward compatible with Master Collection 6.0...WHY NOT?!!!!

This is just horse doodoo. Adobe, you've already got us hooked and paying out the nose, so WHY do I have to save all of my files in an OLDER version (InDesign, for instance) when I'm working on them in Creative Cloud just so I can be able to open them with my MasterCollection6 I paid $3000+ for?
I should NEVER see the message: "Cannot save because file was created with a newer version Creative Cloud..." when I am working with your latest NON-MONTHLY CS6 Master Collection Apps. It is a pain in the a$$ and slows down our workflow.
PLEASE, either give your loyal Master Collection 6 customers updates that make our Apps compatible with Creative Cloud, or start making Creative Cloud Apps backward compatible with our 6.xx version!
Stop trying to hold us hostage with your plans to monthly-revenue everything we already paid thousands for, please!
Sincerely pisT,
Small Business Owner

New features in new software does sometimes mean that new files do not open in old software
Microsoft also does this... the new DOCX documents will not open in the old Word 97 (and, in fact, I had to buy MS Office 2003 because MS Office 97 would not even install and run on Windows 7)

Captivate 2 backwards compatible with 1?

Is Captivate 2 backwards compatible with Captivate 1?
For example, would it be just the new features that would be
disabled if I opened a Captivate 2 file in Captivate 1 such as
scenarios, or would the whole file be unopenable.
Also, how does the import work if I'm bringing a file in from
Captivate 1? Do I just open it or would I need to rework anything?
Also in Captivate 1, I've had to hand-write special htm files
for the Active X problem. Are these sorted out in Captivate 2?
I'm ready to release some training and I'm wondering if I
should upgrade it before it goes out, e.g. to add some scenarios.
But if it requires too much rework, I don't have the time right
now.
Thanks,
Kim

Hi Kim
For discussion about backwards compatibility,
Click
here
Yes, I do believe they have addressed the special coding
required to handle the "click to activate this control" message we
now see. So you shouldn't need to do anything special with respect
to this issue.
Cheers... Rick

Is a PCI-488.2-1M card backwards compatible with the 488-1975 standard?

Is a PCI-488.2-1M card backwards compatible with the 488-1975 standard?

IEEE 488-1975 is one of the early revisions of the IEEE 488.1 stardard, other revisions include 488-1978 and 488.1-1987.
Because the original IEEE 488 document contained no guidelines for preferred syntax and format conventions, work continued on the specification to enhance system compatibility and configurability among test systems. This work resulted in a supplement standard, IEEE 488.2.
So, both 488.1 and 488.2 support 488-1975
I checked the link and it is fine, make sure you have the right web browser settings.
http://sine.ni.com/apps/we/nioc.vp?cid=1233〈=US

Is NI-DAQmx 8.0 backward compatible with Lab View 7.1?

Is NI-DAQmx 8.0 backward compatible with Lab View 7.1?

YES it is but when you install it you must select support for LV 7.1 and 7.1 must be installed before you install daqmx 8.0.
Joe.
"NOTHING IS EVER EASY"

R7770-PMD1GD5 - Is it backwards compatible with PCIe x16 1.0a or 1.1?

Hello, does anyone know if the MSI R7770-PMD1GD5 is backwards compatible with the older PCIe 1.0a and 1.1?
I know all 3.0 PCie cards are supposed to be backwards compatible but I've read that some of them really aren't.
Thanks in advance.

gigabyte m68m-s2p http://www.gigabyte.com/products/product-page.aspx?pid=3498#ov

When will USB 3.0 be truly backwards compatible with USB 2.0 audio interfaces?

hello
I own a U46DJ mkII audio interface. I use the interface for music production, particularly recording vocals.
The device performs well on my windows laptop, I can record clean vocals with no artifacts. On the macbook pro however, the incoming audio signal is full of digital pops and clicks.
After spending a few days searching for solutions on google I narrowed it down to the USB 3.0 ports on the new macbook pro.
Lots of people with with all different brands of audio interface are experiencing problems while connecting them to USB 3.0 ports.
Here is an article on the topic: http://createdigitalmusic.com/2012/06/usb-3-0-backwards-compatible-in-theory-but -some-audio-drivers-arent-cooperating/
So, when will USB 3 be truly backwards compatible with our USB 2 devices?

Tuesday. That's what I heard.
Perhaps the driver is the problem. Check with the interface manufacturer.
I have a Focusrite USB interface that sounds great but Pro Tools and Logic kept crashing when I used it. I went back and forth with Focusrite, they had several beta drivers which they sent me, none of which fixed the problem. Turns out the interface works better without the driver from the manufacturer.
I find it hard to blame Apple for this. It's not like they didn't have the ML beta out for a long time for all the device manufacturers to test their drivers and their hardware with. Apple can't keep tabs on every third party developer on the planet and design their software and hardware to keep all of them happy.
If you want to give Apple some feedback you can do it here: Apple - Mac OS X - Feedback

Are 3g chargers backwards compatible with first gen iphone?

so i know that older chargers don't seem to work on the 3g iphones, but are the newer chargers backwards compatible with the 2g iphones?
i was thinking of getting some after market wall & car chargers for my first gen iphone, but i rather buy ones made for the 3g iphones just incase i upgrade soon (and i don't want to repurchase the chargers)
anyone know?

well I'm aware that certain first gen chargers won't work with the 3G, but i've come across this 3g car charger which specifically states it's not compatible with a first gen iphone. strange.
http://www.monoprice.com/products/product.asp?cid=108&cp_id=10831&cs_id=1083105&pid=4871&seq=1&format=2
unfortunately it doesn't say if it's the same case with their 3g wall charger.

Headstart cg$errors backward compatible with Designer 9i cg$errors

Is the Headstart cg$errors package backward compatible with the Designer 9i cg$errors package?
I have a user who runs two Designer generated applications, one generated with (e.g. APPHST) and one generated without Headstart (e.g. APPDSG).
The user has grant execute on the Headstart ht65_own.cg$errors and is referencing this ht65_own.cg$errors through a private synonym.
The user also has grant execute on the Designer appdsg_own.cg$errors and is referencing this appdsg_own.cg$errors through a public synonym.
I'm convinced this wil work for the Headstart generated application, but will it work for the other application (APPDSG)?
Any feedback will be appreciated.
Regards,
Rob Kayzer

Your fix is correct. (It is exactly the same as the fix we made.)
We are getting ready to offer a Supplement option for Headstart 6i. For a small subscription fee (15%), you will get access to a portal with all of the current bug fixes and enhancements as well as hints and tips that have come in from the field. We will make an announcement on this discussion forum as soon as that option is available (hopefully in the next 1-2 weeks).
Regards,
Lauri

Why am I forced to update my OS because the Cloud desktop is not backward compatible with OS X 10.6.8? [was: Why do you do this...]

Why do you do this... My mac is old pro running Version 10.6.8 and now I cant up load the creative cloud desk top app without updating the OS. Why cant these apps be backward compatible? I am perfectly happy with V 10.6.8 and my old pro..

There is no requirement to move on from your old pro. I still use mine.

If LTE is backwards compatible with GSM, why don't they say the phones are global?

When is Verizon going to come up with a 4g LTE CDMA GSM phone, just to leave no needs unfilled? Seems like an obvious gap, except that searching these boards and elsewhere seems to lead to the paradox of yes backwards compatible, but not actually global.
Argghhhh. Any helps or ideas?

Some modern chipsets include software-defined radios that can change
their frequency and even their technology. They change mode depending
on the firmware loaded at startup. It would be really helpful if we had
a list of such chipsets and the phones that use them. At least we'd
know which ones stood some chance of being global-compatible in the
future, if and when Verizon decides to enable the capability. As it is,
they stand a very good chance of losing an increasing number of their
most lucrative customers.

Is PC2 6400 backwards compatible with PC2 5300 RAM?

Similar Messages

Maybe you are looking for