Swapping the Core Duo for a Core 2 CPU

I came across this web site where they describe swapping a Core Solo CPU with a Core 2 Duo CPU. My mini has a Core Duo, but with Leopard now coming out w/true 64 bit apps, and with the future being 64, I have to wonder if this isn't worth giving a try. Here's a link:
http://www.macintouch.com/specialreports/minimonster/
Knowing a little bit about hardware, I'm somewhat apprehensive. The swap they did, they did several years ago and the 64 bit migration is recent, meaning they really couldn't truly test it in that environment. Since Mini's with Core Solo and Core Duo's aren't "true 64", my concern here is really with the addressing capabilities of the hardware. If the OS is limited to 32 bits, as in earlier OS X releases, then I think it's possible that the swapping of a Core 2 in place of a Core Duo or Core Solo would work OK as long as no 64 bit addressing took place. When a newer OS comes along and tries to do 64 bit addressing, possibly the addressing hardware on the motherboard is limited to 32 bits and this would presumably fail.
I hope that's clear. My mini is a late 2006 model FWIW, and at the time the only processors being offered with it were the Core Duo's.
Thanks.

I have a similar question.
I have a 2006 xeon macpro.
Will i beable to upgrade to lion.
I saw this on the website today.
Step 1:Make sure your Mac can run Lion.
Your Mac must have an Intel Core 2 Duo, Core i3, Core i5, Core i7, or Xeon processor to run Lion. Find out if your current Mac has one of these processors by clicking the Apple icon at the top left of your screen, then choosing About This Mac.
Here is what i have.
Processor Name: Dual-Core Intel Xeon
Processor Speed: 2.66 GHz
Will i be good to upgrade?
Thanks
AL

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well i have so many cases now, iskin duo included, i think that it is great! it looks great, feels great and makes me happy!

TS3354 I ordered Batman The Dark Knight Rises in HD, both of my computers get the same error message and neither will play it, can I swap the HD version for a playable version?

I ordered Batman the Dark Knight Rises in HD but I get an error message that says it cannot play the movie on both of my computers. Can I swap this version for one that will work?

After I reformatted my Window 7 machine I'm getting this error too. I deauthorized all my devices and started fresh with my newly reformatted PC thinking that would solve the issue but no go...
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Don't wait for the Intel Core i7 CPU!!!

Anybody contemplating a new system with the Core i7 CPU better be warned! (Jim, are you listening?).
Due to the architecture of the X58 chipset, which does not allow for separate voltages for the CPU and memory, warnings about permanent damage to the core i7 are rampant.
The core i7 can NOT handle voltages over 1.65V. However, most DDR3 memory chips require MORE than 1.65V, sometimes up to 1.80V. In that case permanent damage to the core i7 is the result. It will be fried.

>"One of the biggest concerns about Bloomfield X58 motherboards were previous reports that X58 boards will have to use the same voltage for Vcore, CPU and Vmem, the memory on the board. In previous reports, we learned that first revision of the boards had these two things Vcore and Vmem synchronous.
>We learned that motherboard manufacturers will be able to separate the CPU and memory voltages, and yes, this means that you will be able to set the voltage on your CPU independently from the one on your memory.
>This will certainly make the overclocking much easier, as you wont burn your CPU with 1.8V voltages that you might need for some ultra faster DDR3 memories. You can expect that the next Asus, MSI, Gigabyte boards, among the others, comes with separate Vmem and Vcore settings."
Seems Asus chose not to separate them for their first gen P6T, but the option is there for future revisions and other mobos.
In any event, I had no trouble finding appropriate memory for this board. Shouldn't be an issue if one is careful about matching parts.
Still, this is a good warning, as I was not aware of the problem.

I have just purchased a Macbook Pro 13 inch from the US and wondered if apple will swap my american charger for an english one?

Will a UK apple store swap the amercian charger for an english one?

The charger is international - you just need the correct prong adapter. Should be able to get one in any DIY shop.
Clinton

What's the fastest OS for my mom's iMac? (2.4 GHz Core 2 Duo, 3 GB RAM)

She's currently running 10.6.8 with 400GB of free space and it seems very slow. (I've run Repair Permissions in Disk Repair.)

Thank you MichelPM.
(To be honest, I thought this might be a simple question. I thought for each machine there would be an optimum OS.)
Here's the extra info:
Problem description:
Trying to determine the best OS for my mom’s iMac. It seems more sluggish than it need be.
EtreCheck version: 2.1.8 (121)
Report generated February 23, 2015 8:23:02 PM CST
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
Hardware Information: ℹ️
    iMac (20-inch, Mid 2007) (Verified)
    iMac - model: iMac7,1
    1 2.4 GHz Intel Core 2 Duo CPU: 2-core
    3 GB RAM
        BANK 0/DIMM0
            1 GB DDR2 SDRAM 667 MHz ok
        BANK 1/DIMM1
            2 GB DDR2 SDRAM 667 MHz ok
    Bluetooth: Old - Handoff/Airdrop2 not supported
    Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
    ATI,RadeonHD2600 - VRAM: 256 MB
        iMac 1680 x 1050
        spdisplays_display_connector
System Software: ℹ️
    Mac OS X 10.6.8 (10K549) - Time since boot: 11 days 4:36:4
Disk Information: ℹ️
    ST3500418ASQ disk0 : (465.76 GB)
        - (disk0s1) <not mounted> : 210 MB
        Macintosh HD (disk0s2) / : 499.76 GB (403.91 GB free)
USB Information: ℹ️
    EPSON EPSON XP-410 Series
    Apple Inc. Built-in iSight
    Apple Inc. Bluetooth USB Host Controller
    PIXART USB OPTICAL MOUSE
    Apple Computer, Inc. IR Receiver
Problem System Launch Daemons: ℹ️
    [not loaded]    org.samba.winbindd.plist [Click for support]
Launch Agents: ℹ️
    [running]    com.epson.ecrp.launcher.plist [Click for support]
    [running]    com.epson.Epson_Low_Ink_Reminder.launcher.plist [Click for support]
    [loaded]    com.epson.esua.launcher.plist [Click for support]
    [running]    com.epson.eventmanager.agent.plist [Click for support]
Launch Daemons: ℹ️
    [loaded]    com.adobe.fpsaud.plist [Click for support]
User Launch Agents: ℹ️
    [loaded]    com.adobe.ARM.[...].plist [Click for support]
    [loaded]    com.google.keystone.agent.plist [Click for support]
    [failed]    com.zeobit.MacKeeper.Helper [Click for support] [Click for details]
    [not loaded]    jp.co.canon.Inkjet_Extended_Survey_Agent.plist [Click for support]
User Login Items: ℹ️
    iTunesHelper    UNKNOWN Hidden (missing value)
    SurplusMeterAgent    UNKNOWN (missing value)
    RescueTime    Application (/Applications/RescueTime.app)
Internet Plug-ins: ℹ️
    JavaAppletPlugin: Version: 13.9.8 - SDK 10.6 Check version
    AmazonMP3DownloaderPlugin1017277: Version: AmazonMP3DownloaderPlugin 1.0.17 [Click for support]
    FlashPlayer-10.6: Version: 16.0.0.305 - SDK 10.6 [Click for support]
    AdobePDFViewerNPAPI: Version: 11.0.10 - SDK 10.6 [Click for support]
    AdobePDFViewer: Version: 11.0.10 - SDK 10.6 [Click for support]
    Flash Player: Version: 16.0.0.305 - SDK 10.6 [Click for support]
    EPPEX Plugin: Version: 3.0.5.0 [Click for support]
    QuickTime Plugin: Version: 7.6.6
    Google Earth Web Plug-in: Version: 7.0 [Click for support]
    Silverlight: Version: 5.1.10411.0 - SDK 10.6 [Click for support]
    iPhotoPhotocast: Version: 7.0
User internet Plug-ins: ℹ️
    RealPlayer Plugin: Version: Unknown [Click for support]
Audio Plug-ins: ℹ️
    iSightAudio: Version: 7.6.6
3rd Party Preference Panes: ℹ️
    Flash Player [Click for support]
Time Machine: ℹ️
    Time Machine information requires OS X 10.7 "Lion" or later.
Top Processes by CPU: ℹ️
        49%    Safari Webpage Preview Fetcher
        23%    WebProcess
         2%    Safari
         2%    mDNSResponder
         2%    WindowServer
Top Processes by Memory: ℹ️
    2.14 GB    WebProcess
    196 MB    Safari Webpage Preview Fetcher
    149 MB    Safari
    58 MB    WindowServer
    39 MB    PluginProcess
Virtual Memory Information: ℹ️
    45 MB    Free RAM
    1.96 GB    Active RAM
    953 MB    Inactive RAM
    261 MB    Wired RAM
    7.44 GB    Page-ins
    6.48 GB    Page-outs
Diagnostics Information: ℹ️
    Feb 22, 2015, 11:09:56 AM    /Users/[redacted]/Library/Logs/DiagnosticReports/Safari_2015-02-22-110956_[reda cted].crash

I have an iMac and a MacBook with Intel Core 2 Duo processors. I realize that this is within the stated requirements for Lion. However was wondering if by migrating to Lion this will result in too much demand on processor resources, thus a slower machine

I have an iMac and a MacBook with Intel Core 2 Duo processors. I realize that this is within the stated requirements for Lion. However was wondering if by migrating to Lion this will result in too much demand on processor resources, thus a slower machine than using Snow Leopard?

Which iMac? Which Macbook? Both have had several model
itertations, even within the framework of a Core2Duo processor.
With that said, I have an early 2009 iMac 24", with 2.66 GHz
Core2Duo with 8 gig of RAM, and in my opinion, seems to be running
smoother and faster with Lion.

RAM Swap Between Core 2 Duo and i5 13" MacBook Pros

Hi!
We have two MacBook Pro's at work. One is a late-2010 13" MacBook Pro with an 2.4GHz Intel Core 2 Duo processor. The other is an early-2011 13" MacBook Pro with an 2.3GHz Intel i5 processor.
What we'd like to do is upgrade the i5 to 8GB of RAM and more the 4GB from the i5 to the Core 2 Duo, which currently has only 2GB.
The memory modules for both are the same pin set, but seem to be different speeds - one is 1066Hz, the other is 1333Hz. What I'm looking to find out, before I purchase anything, is if the memory that came installed in the i5 MacBook Pro will work in the Core 2 Duo MacBook Pro.
Any help you can give would be great!
Thanks!
-Eric

Hi Eric,
I have not tried those specific machines, but in the past I have done what you're asking about. In those days there used to be called "dual programmed" RAM. I've had several Macs that the RAM was interchangeable on; if installed in the lower speed machine, it would run at the lower speed; if installed on the higher speed machine it would run at the higher speed. BUT, it was also possible to buy different brands of RAM that were not interchangeable in those same Macs; one model/brand of RAM worked in one of the Macs, one worked in the other, but neither worked in the the opposite machine.
Where does that leave you? I believe it's possible the faster RAM will work in the slower machine. Unless it's "dual programmed" as I described, I doubt the slower RAM will function properly in the faster machine (and if it did, it might function at the slower bus speed = not good), but that doesn't appear to matter to what you want to do.
I do not know for sure that it is "safe" to try the faster RAM in the slower machine, but based on other posts I've read, I wouldn't be afraid to try it. Note that if it does funtion properly, it isn't going to be at the faster speed (1333MHz); that's something you can check in System Profiler if you decide to try it. If you do, I'd watch it carefully for awhile to make sure data/HD and basic functions are not being affected by it; I would perform a backup just prior to installing it, then not backup over it. That way, if anything goes amiss, you can just swap the RAM back to original (or purchase more) and restore from the "good" backup.
Just some thoughts.
What would be better is to hear from someone who's actually done it with that RAM/those machines. Good luck to you.

Which Mac Pro? More cores=slower speeds? And most of us know the speed matters or FPU for music and I don't understand the faster is for the least amount of procs. And while I get the whole rendering thing and why it makes sense.

Which Mac Pro? More cores=slower speeds? And most of us know the speed matters or FPU for music and I don't understand the faster is for the least amount of procs. And while I get the whole rendering thing and why it makes sense.
The above is what the bar says. It's been a while and wondered, maybe Apple changed the format for forums. Then got this nice big blank canvas to air my concerns. Went to school for Computer Science, BSEE, even worked at Analog Devices in Newton Massachusetts, where they make something for apple.
The bottom line is fast CPU = more FPU = more headroom and still can't figure out why the more cores= the slower it gets unless it's to get us in to a 6 core then come out with faster cores down the road or a newer Mac that uses the GPU. Also. Few. I'm the guy who said a few years ago Mac has an FCP that looks like iMovie on Steroids. Having said that I called the campus one day to ask them something and while I used to work for Apple, I think she thought I still did as she asked me, "HOW ARE THE 32 CORES/1DYE COMING ALONG? Not wanting to embarrass her I said fine, fine and then hung up. Makes the most sense as I never quite got the 2,6,12 cores when for years everything from memory to CPU's have been, in sets of 2 to the 2nd power. 2,4,8,16,32,64,120,256,512, 1024, 2048,4196,8192, 72,768. Wow. W-O-W and will be using whatever I get with Apollo Quad.
Peace to all and hope someone can point us in THE RIGHT DIRECTION. THANK YOU

Thanks for your reply via email/msg. He wrote:
If you are interested in the actual design data for the Xeon processor, go to the Intel site and the actual CPU part numbers are:
Xeon 4 core - E5.1620v2
Xeon 6 core - E5.1650v2
Xeon 8 core - E5.1680v2
Xeon 12 core - E5.2697v2
I read that the CPU is easy to swap out but am sure something goes wrong at a certain point - even if solderedon they make material to absorb the solder, making your work area VERY clean.
My Question now is this, get an 8 core, then replace with 2 3.7 QUAD CHIPS, what would happen?
I also noticed that the 8 core Mac Pro is 3.0 when in fact they do have a 3.4 8 core chip, so 2 =16? Or if correct, wouldn't you be able to replace a QUAD CHIP WITH THAT? I;M SURE THEY ARE UO TO SOMETHING AS 1) WE HAVE SEEN NO AUDIO FPU OR PERHAPS I SHOULD CHECK OUT PC MAKERS WINDOWS machines for Sisoft Sandra "B-E-N-C-H-M-A-R-K-S" -
SOMETHINGS UP AND AM SURE WE'LL ALL BE PLEASED, AS the mac pro was announced Last year, barely made the December mark, then pushed to January, then February and now April.
Would rather wait and have it done correct than released to early only to have it benchmarked in audio and found to be slower in a few areas- - - the logical part of my brain is wondering what else I would have to swap out as I am sure it would run, and fine for a while, then, poof....
PEACE===AM SURE APPLE WILL BLOW US AWAY - they have to figure out how to increase the power for 150 watts or make the GPU work which in regard to FPU, I thought was NVIDIA?

Is the Core i7 processor comparable, much slower, or faster than the 2.8 Ghz core 2 duo from 2009?

I am looking to get a new MacBook Air, but when looking at the prices I am seeing the MacBook Pro 13" for the same price and a lot more guts (RAM and Processor). I am ok with spending the amount of money on the air if it means I get a computer that is like my iPad, which i love (flash based, snappy), but don't want it to be super slow.
I am coming off of a 17" 2.8Ghz MacBook Pro from 2009. I was happy with the speed and power of that machine. The most taxing thing I did was make a complilation of family movies in iMovie and burned them with iDVD once in the 2 years of ownership.
I mostly browse the internet and compose written documents, and keynote presentations.
I know my questions may seem stupid, but I don't know how significant the changes between i7 and Core 2 Duo are, so I ask the question:
I am wondering if the processing power in the core i7 will be somewhat comparable, much slower, or faster than the 2.8 Ghz Core 2 Duo I had in my 2009 computer?
Thanks for any help!!

Hi brosephb,
Like you I went through a similar comparison process. I bought the MacBook air 13" and up specced the processor and memory. I don't do anything taxing enough or frequently enough to NEED the extra power of the MacBook pro.
I am overjoyed at my air. It's gorgeous, the way it wakes instantly, it's speed and it's portableness is so endearing that I just don't use my iPad anymore. I read numerous reviews on it and the overwhelming opinion was it's addictive ease of use because of it's slim, light and rapid waking. At work I can hold the air with one hand, open it rapidly at will. It's just great but it's made my iPad redundant (for me anyway).
I see the new airs are even faster and I'm tempted to consider selling my 6 month old air and getting the new one, but, it runs a dream so I am happy to just be envious of the new one.
In short, unless you need the power (for your work) go for the air. I'm looking at a new iMac to use as a home work station. For the price of a new air I can get an iMac that will swallow any task for a good few years to come. And my air will suffice as my mobile companion. However, that's just me spoiling myself as, at the moment, I have no teal need for another mac. I may get the cinema display for any long winded tasks, as the screen size will help with multiple tasking.
A bit of a ramble, hope this is useful.

What's the difference between the Core 2 Duo and the Core Duo

I recently bought a new Macbook (Original) with an Intel Core 2 Duo processor.
I gave my old one to my younger cousin. It has just an Intel Core Duo processor.
What does that "2" mean?
Does it mean the processor is faster?
I was guessing it means that I can have more RAM (because this can hold 4 GB instead of 2 GB, like my previous Macbook)...
Both these Macbooks have only 1 GB of RAM, yet the new one seems MUCH faster. The only real difference in technical specs is the processor. Could the processor be responsible for the much faster computer, or is it simply because it's a new computer?
Thanks!

iSMH wrote:
The Core2Duo is faster than the CoreDuo. The other difference is that the Core2Duos can see 4GB of RAM, CoreDuo can only address 2.
Part of that has to do with the chipsets, although I've heard that some of the Intel chipsets work with both the Core Duo and the earlier Core 2 Duo.
The Core Duo is the dual-processor version of the Core processor.
The Core 2 Duo is the dual-processor version of the newer generation Core 2 processor.
The Core 2 series is more advanced. They likely are produced on faster semiconductor processes in smaller "geometries". I think part of it is a higher operating clock speed, but it could also include advances in processing power where it takes fewer average clock cycles to complete certain instructions. There could be things like more pipelines, faster/more arithmetic logic units, and other architectural improvements that makes it work faster overall even without clock-speed increases.

Want to buy MacBook Pro 13" (new Mac-user). Worried about the Core 2 Duo

I'm really eager to buy a MacBook Pro 13" right now, but core 2 duo feels pretty outdated, I remember my computer from 2006 having that CPU.
My greatest worry is that the computer will feel out-dated pretty fast, like for how many years will it be able to survive OS-updates? I really want to buy one now, but I don't know if i should wait. Do any of you mac-users feel it to be sluggish in any way?
Appreciate your help.

i don't have a lot of experience with this as we just made the switch about a month ago. it's mostly my wife's macbook pro and i wanted her to get a toshiba with i5 processor but she wanted to get the mac. i found this on cnet, which made me feel better about the core2. remember it is running apple stuff which isn't a drain on it like microsoft stuff:
The speed-bumped Core 2 Duo processor at the heart of the MacBook Pro isn't part of the 2010 Core i3, i5 and i7 processor family--it's a holdover from last year, and that's a bit of a shame. However, most mainstream users will find perfectly adequate performance in these Core 2 Duos--multitasking, video editing/playback, and photo and graphics work can all be handled, sometimes surprisingly well. *In our benchmarks, the 2010 MacBook Pro 13-inch outperformed the Core i3 Asus U30Jc and came close to the souped-up Core i5 Sony Vaio Z116GX/S. Against those laptops, it actually came out on top in multitasking by a decent margin, although some of the programs we use for our benchmark tests, such as iTunes and Photoshop, are very Mac-friendly.* The 15-inch Core i7 Spring 2010 MacBook Pro still outperforms this 13-incher by a considerable margin, but it also costs $1,000 more in the configuration we tested.

Macbook Pro quad i7 vs. MBPro Core 2 duo for Logic?

Greetings! I am considering upgrading my 3.06Ghz Core 2 Duo Macbook Pro to a 2.0Ghz Quad i7 MB pro. I can get a mix to run on my current MBP (I use a UAD Satellite Quad to help with the load), and I can run a very dense (as many as 60 tracks) orchestral session (EWQLSO) on it, but just barely. I also use it onstage and can run what I need to run at a buffer of 128 msec. I'm considering upgrading to the quad-core I7 in the hopes that it would provide a lot more breathing room on the mix and orchestra projects, and hopefully even maybe a 64 or 32 msec buffer on the live situation. Has anyone made this move, and am I correct that I should see something close to a doubling of performance in these situations? Only thing I really wonder about is that when I'm playing, say, Omnisphere live, it's running on just one core, and I'm having some trouble figuring out how much faster a single core of the i7 is compared to a single core of the Core 2 duo. Any advice from someone who's walked the walk would be appreciated!

Core 2 or Core i7? That depends on what you plan to do with the system. There is little difference between Core 2 Quad and Core i7 when it comes to gaming. If you are going to be using this system for animation rendering, video editing, desktop publishing, or number crunching, then i7 will have the advantage... up to 30-35%. If you are looking at a more power efficient and cheaper system mainly for gaming and internet, then a Core 2 Duo is probably all you will need.

Does a 6-4 FW cable that worked on the Core Duo work on the Core i7?

Hello,
I just pulled out my old Panasonc GS 250, which I used to connect my camera to my Core Duo with a 6-4 cable, but now if appears that cable won't fit into the firewire port on the Core i7. Is this because the Core i7 is FW 800 while the Core Duo is FW 400? Either way ... do I need a new cable?
Right now my video is stranded on the tape in my camera : /
Thanks for your help.
Ramone

Hello,
I have a Firewire port ... and now have my camcorder hooked up via the 4-9 pin firewire cable I just bought ... but alas ... the camera is not showing up in the Device list in the Finder and Final Cut Express 3.5.1 says: "Unable to locate the following external device: Apple FireWire NTSC (720 x 480) : /
Though when I open System Information under Hardware > Firewire it is showing my camcorder is connected.
Any suggestions for how to get my camcorder seen by Finder and Final Cut Express 3.5.1?
Thanks.

Without the Core 2 Duo on my MB am I out of luck on Lion?

Without the Core 2 Duo on my MB (2007) am I out of luck on Lion? Tried to download Lion and I don't have the proper processor. Is it possible to change processors to the Intel Core 2 Duo?
Thanks,

A Core 2 Duo processor is the minimum requirement for OSX Lion.
If you have a MacBook with a Core Duo Processor (without the '2') then sorry to say but you are out of luck.
Since the processor is soldered to the logic board it cannot be replaced/upgraded.
Stefan

Swapping the Core Duo for a Core 2 CPU

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