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The connectivity options build on what was available to G4 users, so now we have Firewire as well as Firewire and USB 2. USB 1. Dual-monitor support comes as standard, though you'll need an additional adaptor if you want to use two of Apple's swanky cinema displays. Photo: Mike Cameron In keeping with long-established Apple policy, there are three basic models in the G5 range, although you can choose to vary the specifications using their build-to-order service. The entry-level G5 has a single 1. We were lent the top-of-the-range dual 2GHz G5 for this review.checkout.midtrans.com/paginas-conocer-gente-azuqueca-de-henares.php
922-7001 iMac isight/intel Hard Drive Mounting Pins(2 screws)
Unfortunately, deadlines meant that my tests had to be conducted with the older Mac OS The starkly beautiful case is made from aluminium, an extremely good conductor of heat, so the case itself is used to move heat away from hot spots by conduction as well as the more usual fan cooling. Computers have always had a bad reputation for being noisy, especially the silver-door G4s, which whined like a hairdressing salon on a Saturday afternoon, but Apple have made a very serious attempt to keep the G5s quiet, a feat that seems all the more impressive when you realise there are nine fans inside the box!
The secret is to use intelligent fan speed control so that the fans only turn up the wick when the temperature rises — the rest of the time they swoosh gently around like something out of a Ridley Scott movie. Despite the clean design, the front panel nonetheless manages to conceal the optical drive as well as USB, Firewire and headphone connectors.
Photo: Mike Cameron Access to the innards is via a pull-off side cover that is secured by a recessed latch on the rear panel.
Removing the panel reveals a perspex cover, which may be unlatched and lifted out to provide full access through the side of the machine. If you do this when the machine is switched on, the fans rev up to full power like a Matrix hovercraft! The innards of the machine also look sharp and well-organised compared to earlier models and have been designed to allow additional drives and RAM chips to be fitted without the need for any tools at all.
There's space inside to fit one additional hard drive, with cables already fitted, but because the G5 employs the new Serial ATA standard, you can't simply whip a Parallel ATA audio drive out of a G4 and transplant it — and in any event, both the connectors and the drive mounting system are different.
If you want to use an older ATA drive with your G5, you'll need to buy an external Firewire drive housing and connect it that way.
Upgrading a Power Mac G5
Rather than fixing into place with four screws, hard drives are installed by sliding pegs on the sides of the drive into plastic guide rails, after which a plastic toggle is rotated to lock the drive into place. A fan assembly has to be removed to get to the memory slots, but the whole fan assembly simply slides out without the need for tools, so the only time you should need a screwdriver is when fitting the crosshead screws the ones that always fall down into the computer's innards!
Two large fan outlets and an IEC mains connector are in evidence, along with sockets for Airport and Bluetooth antennae. If this seems a little on the sparse side in some respects, that's because you get a further USB and Firewire connection on the front panel along with a headphone jack. This is very practical for connecting 'visiting' peripherals without having to crawl around the back of the machine with a torch!
Both the dual 1. When I turned on the G5 for the first time, I was particularly interested in how noisy it would be in my own studio, as I'd previously only seen them at trade shows where the ambient noise level is fairly high. I currently use an earlier MHz G4, which is very reasonable in the noise department, despite the horrendous reputation of some later models. The G5 starts with a flurry of fans that immediately settles back into a gentle whisper, leaving the whine of the hard drive as the loudest audible component of the sound. There's still more noise than you would want to share a room with if recording something sensitive, but in most instances, setting the mic up at the other end of the room and pointing it away from the computer should suffice.
If you stand the computer under your desk rather than next to your ears, the noise level is low enough that it shouldn't prove a distraction when monitoring unless you happen to be monitoring extremely quietly. I've also checked out a couple of other G5 dual-processor machines that seem to be significantly quieter than the one I had for test, so maybe there is some variation in the types of drives fitted?
It turned out that this must be unstuffed using Stuffit Expander version 8 or later — you can unstuff the file in OS 9 using any version of Stuffit Expander, but if you do, OS X sees the file as an unknown document and refuses to play ball with it. So, I spent another hour downloading Stuffit Expander 8, unstuffed the installer on the G5, and everything went swimmingly well.
Most pre-G4 Apple computers had line-level audio input and output at quality that was often surprisingly usable, and this has made a welcome return on the G5. The subjective quality of the inbuilt audio seems really very good and monitoring from the output jack sounded identical to what I was hearing from my In fact I had to double-check that the monitor output really had changed!
However, on closer listening with the track not running, some digital crosstalk was evident at higher monitoring levels, so the audio out isn't as noise-free as a serious external interface, but it should be perfectly adequate for many monitoring uses. A single catch on the rear releases the G5's side panel Photo: Mike Cameron Some benchmarks show the fastest G5 outgunning a dual 3GHz Pentium 4 by up to 35 percent, while others suggest that the Pentium has the edge, but this type of "My Dad is bigger than your Dad!
What's more, because the G5s like the later G4s can only run Mac OS X, you have to ensure not only that your main audio applications are OS-X-compliant, but also that all the your favourite plug-ins are too. The majority of plug-ins are finally becoming available for Mac OS X, though not always in Audio Units versions that can be used directly within Logic and other AU-reliant programs. Photo: Mike Cameron Having explained that benchmark figures shouldn't become the only thing to rely on when choosing a computer, I was naturally interested to obtain some quantitative results running music applications.
To provide a sensible track count figure, I've decided to quote the number of mono playback tracks at bit, Using the primary internal drives in both cases, my G4 MHz ran up to around 40 tracks and the G5 80 tracks at this nominal 50 percent capacity; placing an edit across all the tracks increased disk load by around 10 percent. A further panel made of moulded plastic helps to direct the flow of air from the cooling fans Photo: Mike Cameron Musicians often compare the CPU muscle of different systems by seeing how many reverb plug-ins they can run before the activity 'LED' goes into the red, and I decided to run this test using Emagic's new Space Designer sampling reverb.
Like all convolving algorithms this is a pretty CPU-intensive plug-in, and using a patch with a two-second decay time, a mere two Space Designers registered around 95 percent CPU load on my G4. With the same patch, the G5 ran 32 instances! The CPU activity meter readings seemed fairly accurate, because loading on a couple more instances on the G5 pushed it over the edge, and lengthening the decay time on the G4 instances by a few percent brought the system to a halt.
The extreme discrepancy in performance in this case is probably due in part to the fact that Space Designer is one of few applications currently optimised for the G5. The G5's superior memory bandwidth, as well as its greater CPU horsepower, should be noticeable with applications such as soft samplers, so I decided to compare the maximum polyphony using a RAM-based program rather than samples streamed from hard drive in Emagic's EXS There was an obvious improvement, but nothing like as great as with Space Designer; my G4 just managed voices, while the G5 delivered around to voices.
Additional drives and memory can be installed without the need for any tools. Photo: Mike Cameron From these tests, it seems that the performance gains vary depending on the area you test. For example, scaling up my G4 MHz EXS24 sampler polyphony to what you might expect on a 2GHz G4 machine if there was such a thing shows that the increase in EXS24 polyphony offered by the G5 is pretty much in line with its faster clock speed, with few obvious benefits from the second processor or faster bussing.
On the other hand, the increase in the number of Space Designer reverbs that can be run simultaneously can't be accounted for by clock speed alone, so the G5's architecture clearly offers significant advantages where plug-ins are designed to take advantage of it.