I thought it pertinent to ask, as the '06 - '07 models have been gimped by Apple with the EFI32. They're still good machines, but use under OS X is becoming limited, and will get worse.I have a first gen (1,1) Mac Pro.
Yep. And given Christmas shopping, their running free shipping on items they may normally not (i.e. macsales is offering free shipping on orders of $150+ USD).
You might want to upgrade the graphics card as well.
It's a nice system, and is quite an upgrade from the G5.![]()
You can use the OEM memory with the sticks on order.Okay, 8GB (4GB x 2) from macsales.com is on the way.....can I use the 2GB OEM memory as well (for a total of 10GB), or do I have to use just the 8GB?
Never underestimate greed and the uninformed.I have to say, I'm quite envious of the prices for used Mac Pros to be had in America.
Up north, we have a slew idiots who routinely list their 2 year old Mac Pros for a few hundred dollars off from their original price. The prices are astonishingly inflated.
Never underestimate greed and the uninformed.![]()
![]()
It's common enough here too though (not so much on the '06 - '07 models, but definitely on the '08's from what I've seen recently), and you have to be patient to wait for a decent deal to show up. Especially on Craig's List, as it's local (smaller). I just don't trust buying systems from eBay, as it's too easy to get burnt.![]()
![]()
Never underestimate greed and the uninformed.![]()
![]()
It's common enough here too though (not so much on the '06 - '07 models, but definitely on the '08's from what I've seen recently), and you have to be patient to wait for a decent deal to show up. Especially on Craig's List, as it's local (smaller). I just don't trust buying systems from eBay, as it's too easy to get burnt.![]()
![]()
My only reason for mentioning CL, is the ability to inspect and verify operation prior to payment. Another member's recently been burnt on eBay (false description of working system, when the board was toast). I don't buy off eBay for systems, out of fear of a lemon and being ripped off.Craigslist has become a joke. Everytime, I'm looking to buy something, I find "as good as new" (at least that's their claim) items where the seller wants full retail (usually what they paid - not even what a good bargain hunter would pay!) In some cases, they think they are doing you a favor because you don't have to pay sales tax!!! LOL. These guys are high!
In almost all cases, Craigslist compels people to buy new. I even find other buyers posting ads in Craigslist to hit search results that say "Don't buy XYZ for $1000, you can buy it online at something.com for $800!!!". The sad thing is that sellers must be getting ridiculous sums for their goods or the prices would come down to more reasonable levels.
Memory Compatibility Notice
Please be aware that certain Intel® Xeon® Processor 5500 series processors can only use certain memory modules. Please follow the rules for CPU/memory pairing:
Processors with a QPI of 6.4 GT/s can use up to 1333 MHz memory
Processors with a QPI of 5.86 GT/s can use up to 1066 MHz memory
Processors with a QPI of 4.8 GT/s can use up to 800 MHz memory
CPU can handle memory rated at higher speeds, but will drop down to highest supported speeds
Be aware that memory options provided in configurator are for up to dual-CPU setups. If using a single CPU configuration, memory support is cut in half.
It is best to have equal memory per CPU selected. While this server system can operate when only a single CPU populated with memory, performance will be degraded. For optimal performance, please choose memory in multiples of 6x.
In the PC side, you need access to the firmware to change this (OC functions, & change the memory muliplier - frequency settings on some).I've been doing some reading and I noticed that Dell and AVADirect computer sellers all state that Intel Xeon chips using 4.8 GT/s QPI FSB speeds will default to using 800 Mhz speed RAM in the system.
I also noticed that the only Intel 3500 series chips that use 2.66 and 2.93 speed are the W3520 (2.66) and the W3540 (2.93) chips. Both these chips utilize 4.8 GT/s QPI (quick path interconnect) technology. And, Intel lists only that QPI speed in the FSB speed column of their chip selector page (in place of where other chips have 1066 or 1333Mhz). So, logically that means that the Mac Pro 2009 Nehalem single chip machines rely upon 4.8 GT/s as the primary FSB speed, and thus are actually only 800 Mhz memory capable machines and not 1066 Mhz machines as is implied in all the advertising.
They're still capable of additional bandwidth, given triple channel operation. But ATM, there's precious little software that can utilize it.What do people think of that? Are the Nehalem chip Mac Pros still better than the 2008 Mac Pros which advertise only 800 speed memory? Are my conclusions even true, or am I missing something? Is the QPI speed a different CPU-to-memory path than the standard 3-channel path to the memory modules? If that's true then it's more confusing. But, the Intel website lists only the 4.8 GT/s QPI speeds in the column for these CPU's in place of where the normal 1066 Mhz speeds are for the other chips. So, it seems that the QPI speeds actually are the FSB speeds used to access RAM.
The IMC (Integrated Memory Controller) is included on the die (3 channels), and is separate from the QPI (Quick Path Interconnect), which is used to attach the CPU to the chipset.To make it more confusing....on page 9 of the "Intel Xeon 3500 series Datasheet" there is a chart which shows the CPU to DDR system memory as being 3 paths, while it shows a separate path for QPI memory access (from CPU, but doesn't show where it goes to). If that's the case (that the QPI is only a secondary path to DDR3) then the Intel specification charts should still list the normal FSB speeds in the charts instead of only the QPI speeds. It becomes confusing to figure out what DDR speed is being used here. Is QPI the sole path for FSB and DDR3? Or, is it just an augmented secondary pathway from CPU to DDR3? It appears to be the primary path from everything I've seen.
The IMC (Integrated Memory Controller) is included on the die (3 channels), and is separate from the QPI (Quick Path Interconnect), which is used to attach the CPU to the chipset.
FSB is gone, and DMI is only used to attach the ICH10R (SATA controller) to the chipset (i.e. Southbridge to Northbridge connection).
It's actually a little more confusing that what you might think, as QPI only exists on the LGA1366 parts. The LGA1156 (i5 & i7-8xx) parts retain DMI to the chipset (but still have the IMC).Well, if FSB is gone then I guess that I need to read some newer computer books to help evaluate these newer technologies.
So, if what nanofrog says is true, then Mac Pro looks like a better deal than I thought. Comparably equipped Dells are actually very expensive when built to order with equal CPU and memory (ie around $2700.00 and higher).
The last potential Mac Pro weakness is the graphic card choices for 3D workstation use (compared to building a PC from Dell or others). Dell offers Nvidia Quadro FX 580, 1800, 3800, and 4800 as well as ATI V8700 and others.
If you get the newest advanced Nvidia Quadro 4800 for Mac ... are the drivers written well enough to utilize the card fully on the OSX side of a dual boot? Or, are they maximized and optimized primarily for someone to boot into Windows 7 or whatever Windows? I've read that Mac writes terrible Nvidia Quadro drivers. But, are they terrible only on the Mac OSX side of a dual boot OS? Were the drivers magically rewritten to be fully optimized on OSX? Or, is the Mac support for Quadro 4800 merely based upon using existing Windows driver code -- with Apple assuming that the Quadro will be used only for Autodesk on Windows 7 ?
And, is there some way to rig a lower priced Nvidia 1800, 3000, or 3800 card into the Mac to utilize as a second card for the Winows side only (ie for using Autodesk products). Would it work really badly if it did work?
The Good
* Faster than Radeon 4870 for most GPGPU computing
* Only card currently sold with quad-buffered 3D output for OS X
* Consumes less power than current-gen gaming cards
The Bad
* Dismal performance compared to the same machine in Windows
* Always outpaced in CUDA/OpenCL performance by the cheaper GTX 285
* 10-bit color output not supported since there is no DisplayPort interface
* CUDA still 32-bit only
The Ugly
* Having to swap out an $1800 3D card because it's slowing you down.
Under OS X, NO. But I'm getting the impression the OP is going to be using such a card under Windows, where they'll perform as expected, PROVIDED the software can utilize the card. AutoDesk's software typically is.Here's a recent review of the 4800 under OSX...
http://arstechnica.com/apple/news/2009/12/a-second-look-at-the-nvidia-quadro-fx-4800-mac-edition.ars
I don't think it was all that compelling for the money...
Yep. So it's really only useful on the Windows side, as so far, OS X software hasn't been adapted to use the Quadro 4800 Mac ed. yet.Since Maya is probably the most similar to 3DSMax as far as type of graphics needs then it looks like Quadro graphics in a dual boot Mac Pro will only perform half as fast on the OSX side, but fine on the Windows side.
The Precision T3500 = Xeon SP system (35xx parts), Precision T5500 = Xeon DP system (55xx parts). So they're both professional units.As far as prices for the computers I was using the feature to configure a new computer on Dell's website using the "Large Business Enterprise" computer option. The home and small business options only have Vostro, Optiplex, Precision, etc. I came up with pretty high prices that I quoted earlier when I carefully selected CPU's and memory to match the Mac Pro 2009.
It depends on whether or not you have access to the firmware settings. OC capable boards are easy. Even non OC boards would be possible if they allow you to set either the memory mulitplier or frequency (just another way to set the multiplier; divide frequency by BCLK = multiplier used to achieve the desired frequency).I still don't fully understand how one would get the 3520 chips updated to work with 1066 DDR on a PC desktop. If it's complicated then I really don't want to waste the time anyway.
![]()
The Precision T3500 = Xeon SP system (35xx parts), Precision T5500 = Xeon DP system (55xx parts). So they're both professional units.Comparing the base models as closely as possible, they were cheaper, even with the web pricing.
According to the specifications page, it's either 1066 or 1333MHz.Thanks for the info. I know it seems a lot of fuss over maybe nothing....but, isn't it true that those standard config Dells would only have access to 800 Mhz DDR based on what everyone is saying about CPU's with 4.8 GT/s speed such as that 3520 CPU (non-modified) on a PC.
If that's the case then those Dells are being cheated out of faster DDR and thus not really comparable machines to ones like either the Mac Pro Nehalem or 5550 equipped Dell. So, you'd have to get the 5550 chip (or similarly priced 3500 series 3.20 Ghz CPU) to get the comparable system -- thus raising the prices substantially even with single CPU systems.
Memory Compatibility Notice
Please be aware that certain Intel® Xeon® Processor 5500 series processors can only use certain memory modules. Please follow the rules for CPU/memory pairing:
Processors with a QPI of 6.4 GT/s can use up to 1333 MHz memory
Processors with a QPI of 5.86 GT/s can use up to 1066 MHz memory
Processors with a QPI of 4.8 GT/s can use up to 800 MHz memory
CPU can handle memory rated at higher speeds, but will drop down to highest supported speeds
Be aware that memory options provided in configurator are for up to dual-CPU setups. If using a single CPU configuration, memory support is cut in half.
It is best to have equal memory per CPU selected. While this server system can operate when only a single CPU populated with memory, performance will be degraded. For optimal performance, please choose memory in multiples of 6x.
Isn't it a little wierd to be buying a used computer?
Stay tuned for my new theory abou...earning for the lifestyles of centuries past.
It's going to depend on the firmware settings in the board used. That's been my point, and why you should do the research to find out.http://www.avadirect.com/product_details_configurator.asp?PRID=13547
According to online sources where you custom build a computer such as Dell and avadirect.com --- when you go to choose your CPU there is a warning that states that using CPU's with 4.8 GTR/s or slower memory access speeds will by default limit your DDR speed to 800 Mhz. It is not mentioned by Intel that I've seen. But, I would trust the Dell and other builders of such a warning...I think.
As a series the 3500 series supports 1066. But, the individual CPU models seem to vary in their DDR support depending on what model you buy.
From avadirect.com website:
Dell says the same thing as above.
The Intel 3520 (2.66 Ghz) and 3540 (2.93) are both 4.8 Gt/s. It's not until you get to the 3570 (3.20) and 3580 (3.33 Ghz) speeds that you get the 6.4 GT/s. But, they're also huge upgrades in money too. That's where I'm getting my ideas that equally equipped Dells are more money than equally equipped Mac Pros. Unless the whole 800Mhz throttling is just a sham.
Stay tuned for my new theory about whether computers actually save time in our lives --- considering I just spent 4 hours wondering about something that might not matter in the real world.