kuruu Posted September 6, 2006 Share Posted September 6, 2006 24 inches! They are here! Merom all round up to 2.33GHz! Big Question: Which chipset? 965, 975, 945? Link to comment Share on other sites More sharing options...
StarForge Posted September 6, 2006 Share Posted September 6, 2006 Wow, nice find! Hmm... I guess we'll find out soon eh? Link to comment Share on other sites More sharing options...
Bearcat Posted September 6, 2006 Share Posted September 6, 2006 In the Apple Store now as well Link to comment Share on other sites More sharing options...
VirtualGuitarist Posted September 6, 2006 Share Posted September 6, 2006 Just for info: # 24-inch model * NVIDIA GeForce 7300 GT graphics processor with 128MB of GDDR3 SDRAM using PCI Express * Optional NVIDIA GeForce 7600 GT graphics processor with 256MB of GDDR3 SDRAM using PCI Express It seems that we will see more and more nvidias in the upcoming models... Link to comment Share on other sites More sharing options...
Xenctuary Posted September 6, 2006 Share Posted September 6, 2006 That 24" model looks amazing. From £1349 in the UK store. Link to comment Share on other sites More sharing options...
learning_bird Posted September 6, 2006 Share Posted September 6, 2006 Just for info:It seems that we will see more and more nvidias in the upcoming models... And probably more Nvidia kext's... Link to comment Share on other sites More sharing options...
pedro_sandchez Posted September 6, 2006 Share Posted September 6, 2006 Looks great, but I was hoping for an update on the macbooks because I really want to buy one but dont want to risk buying it and then see an update to merom two days later. Link to comment Share on other sites More sharing options...
VirtualGuitarist Posted September 6, 2006 Share Posted September 6, 2006 And probably more Nvidia kext's... But these kexts simply can't work on our boxes without the new kernel (we all use the older 10.4.4 kernel, wich is incompatible with them), and a LOT of work. Link to comment Share on other sites More sharing options...
learning_bird Posted September 6, 2006 Share Posted September 6, 2006 Looks great, but I was hoping for an update on the macbooks because I really want to buy one but dont want to risk buying it and then see an update to merom two days later. Relax... Everyone is expecting to see new Macbooks this September. Link to comment Share on other sites More sharing options...
bofors Posted September 6, 2006 Share Posted September 6, 2006 24 inches! They are here! Merom all round up to 2.33GHz! Big Question: Which chipset? 965, 975, 945? Ok, all but the low end support the use of 2GB DIMMs. http://www.apple.com/imac/specs.html EDIT: The Intel specs. on the 945GM that I looked at may be misleading. The Internet suggests the Merom in being used with the 945 chipsets so I now suspect that these 3GB iMacs are using some 945 variant (and perhaps more importantly the ICH7M as opposed to the ICH8M). So it looks like they are using a 965, the 945 only allows 1GB DIMMs max: p 19: ftp://download.intel.com/design/mobile/datashts/30921902.pdf Link to comment Share on other sites More sharing options...
Bearcat Posted September 6, 2006 Share Posted September 6, 2006 So it looks like they are using a 965, the 945 only allows 1GB DIMMs max: I'm curious, does the 965 also have a 3.2gig addressing limitation like the 945s do? All the iMac are only supported up to 3gigs of ram, using a 2gig SO-DIMM and a 1gig SO-DIMM, and what does that do to the dual channel performance of your memory? Link to comment Share on other sites More sharing options...
bofors Posted September 6, 2006 Share Posted September 6, 2006 I'm curious, does the 965 also have a 3.2gig addressing limitation like the 945s do? EDIT: Yes, we do know that the G965 has the same limitation with 1 GB DIMMs and also has a similiar limitation with 2 GB DIMMs (the limit is about 6 GB). But we do not know what the G965 limits the OS to when 1 GB and 2 GB DIMMs are mixed. All the iMac are only supported up to 3gigs of ram, using a 2gig SO-DIMM and a 1gig SO-DIMM, and what does that do to the dual channel performance of your memory? I believe that dual channel is only possible with symmetric RAM on the 945 chipsets, so using 2GB would probably be preferable to 3 here. Link to comment Share on other sites More sharing options...
munky Posted September 6, 2006 Share Posted September 6, 2006 Just a quick note: the 24'' iMac features FireWire 800. Link to comment Share on other sites More sharing options...
Bearcat Posted September 6, 2006 Share Posted September 6, 2006 I believe that dual channel is only possible with symmetric RAM on the 945 chipsets, so using 2GB would probably be preferable to 3 here. Weird, I would have hoped that putting in 2x2gig SO-DIMMS, you would actually be able to use all of the 4gig of ram. Maybe it's possible, but I'm surprised at the memory configurations. Link to comment Share on other sites More sharing options...
Swad Posted September 6, 2006 Share Posted September 6, 2006 I've updated the topic to reflect the nature of this thread. There's a front page news article for those wanting to discuss things other than the chipsets, etc. Also moved it to the Mac area for clarity's sake. Good job on being quick, melchior. Link to comment Share on other sites More sharing options...
martin1976 Posted September 6, 2006 Share Posted September 6, 2006 Link to comment Share on other sites More sharing options...
Bearcat Posted September 6, 2006 Share Posted September 6, 2006 This is just my opinion. All the new iMacs are using the first run Merom chips, which are 479 socket, and are pin compatible with the Yonah chips, and are supported by the 945 chipset. I believe all the iMacs today are 945 based, and that is why they only support up to 3gig of ram. (3.2gig actually). I don't believe there are any new chipsets in the iMacs, and they are just a processor replacement, which apparently has been done on the sly to the mac mini in other forums. Link to comment Share on other sites More sharing options...
fireshark Posted September 6, 2006 Share Posted September 6, 2006 479 is an old socket. They all use LGA775. Link to comment Share on other sites More sharing options...
Bearcat Posted September 7, 2006 Share Posted September 7, 2006 479 is an old socket. They all use LGA775. The Conroes or Desktop versions use the 775 socket. The Meroms in the new iMacs use a 479 socket, the same socket as the Yonah, http://processorfinder.intel.com/List.aspx...c=&OrdCode= Link to comment Share on other sites More sharing options...
Bearcat Posted September 7, 2006 Share Posted September 7, 2006 I believe all the iMacs today are 945 based, and that is why they only support up to 3gig of ram. (3.2gig actually). A little more follow up on this. A 32 bit Operating System can address about 4 gigs of memory, 64 bit OSes a lot more. The 945 chipset maps a number of things into the 4 gig address range so that 32 bit Operating Systems can see these things, and use the hardware. What it means is, even if I put 4 gigs of ram into the machine that address range at 4 gigabyte downwards will get mapped over with other addressable hardware, which leaves that ram unusable by the Operating System. On some boards like the Asus 945 boards, Windows XP 32 bit would report 3.2gigs of ram available. Below is an example chart that illustrates the memory addresses overlayed in a 4 gig and a 3 gig system. As you can see in the chart, it doesn't matter whether you have 4 gigs of ram in the system or 3 gigs of ram, the hardware overlays part of that address space, and you are left with about the same amount of usable ram to the Operating System and Applications. Link to comment Share on other sites More sharing options...
bptba93 Posted September 7, 2006 Share Posted September 7, 2006 wow only $999 for the 17? have to start saving up my money...i wish i could sell my laptop but nooooooo parents are stupid Link to comment Share on other sites More sharing options...
sbeehre Posted September 7, 2006 Share Posted September 7, 2006 hell yeah! i hope they are using 965 because i just bought and intel 965 MB Link to comment Share on other sites More sharing options...
bofors Posted September 7, 2006 Share Posted September 7, 2006 The 945 chipset maps a number of things into the 4 gig address range so that 32 bit Operating Systems can see these things, and use the hardware. I thought this ~3GB limit issue was limited to the 945G series chipsets and not an issue on the 945P series. The other we can say here about the iMac chipset is that it is almost certainly based on the Intel "Napa" mobile platform (which is a 945 chipset), the new "Santa Rosa" mobile platform (which will use the ICH8M) is not due until next year. The iMac is almost certainly using the Napa "refresh": http://www.anandtech.com/tradeshows/showdo...?i=2715&p=2 This makes it pretty clear that iMac is must be using some 945, perhaps the 945PM in the top models: http://www.intel.com/products/roadmap/laptop.htm Link to comment Share on other sites More sharing options...
mifki Posted September 7, 2006 Share Posted September 7, 2006 Hmm, well ive been thinking, im just gonna get a iMac adn a Macbook pro, next year bu tinstaed of getting a conroe, im gonna wait till november wen clovertown is release, with this new core 2 architechture, massive performance boosts are only 3 months apart. Link to comment Share on other sites More sharing options...
Bearcat Posted September 7, 2006 Share Posted September 7, 2006 I thought this ~3GB limit issue was limited to the 945G series chipsets and not an issue on the 945P series. Could be, The only thing I know is, we have ASUS 945 boards with the gma950 and without, and all of them say 3.2gigs available ram when boot into windows and linux, even though all the machines have 4gigs ram installed. Link to comment Share on other sites More sharing options...
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