<strong>Just waiting for it to become an invalid item...</strong><hr></blockquote>
I didn't have to wait very long. This means eBay took it down because it was not something they should have been selling. Most likely they were contacted by Apple's legal department.
So this was something in development though not necessarily what we will get down the line. Is anyone else depressed that it still uses a 133Mhz bus? Hmmmm...
<strong>What exactly was it? The link doesn't work anymore.</strong><hr></blockquote>
I am looking at the picture and thinking there is no way the mystery port between the Firewire and Ethernet ports is for a modem. Its just way too small.
Doesn't look like it. Maybe it was an early prototype. Note that the image was also taken off of the sellers webspace where the image was being hosted. This just happened a few minutes ago.
Maybe it was a quicksilver prototype? This still does not explain the mysterious ports. <img src="graemlins/bugeye.gif" border="0" alt="[Skeptical]" />
<strong>Ebay pulled it. Great big bunch of wankers, in my opinion. I bet it was a doctored image from someone who knew that Apple test mobos are red.
133 MHz bus? For the NEXT generation? Please. Apple would be foolishto release anyhting lower than 200 MHz.</strong><hr></blockquote>
But I thought the whole point of DDR would be that on a 133 MHz bus, the ram ran at 266 MHz (since it goes on teh front and back of the clock or whatever). Is my thinking wrong here?
On AMD's boards, some have 266 MHz ddr. Does that mean the bus is running at 533? Or is it like I said and is running at 133, but since it is ddr, it is virtually 266?
128bit data paths * 133MHz * 2(for DDR) / 8 bits (8 bits per byte) = 4.266GB/sec
But the specs said 133MHz bus capable of 1GB/s throughput, yet that would mean it uses only SDRAM at 133MHz like the current towers. But the specs also say DDR and "full" 128bit datapaths. And then there's assertion in the specs that the cache runs at 4GB/s. What would be the point of having L3 cache slower than main memory?
Okay, this is what Dorsal had to say back in November...
What we have seen though, is widespread use of the 7460 which is basically a 7450 with an improved method of manufacter. Still this is nothing to sneeze at. They offer linear performance over the 7450 at better speeds. The range so far has been ~900-1400MHz but it is hard to give exact numbers due to the variety of motherboards they exist on. I was shocked when the newer motherboard we were working on were not released at the Expo this past summer. Fully working DDR-SDRAM motherboards were ready with a full assortment of modern motherboard features including Fibre Firewire at speeds up to 1600Mbps with a fibre port and 2 lower speed (800Mb) normal ports. USB1.1 was still there but the board had support for DDR-SDRAM and an advanced system bus running at 266MHz.
Comments
<strong>Just waiting for it to become an invalid item...</strong><hr></blockquote>
I didn't have to wait very long. This means eBay took it down because it was not something they should have been selling. Most likely they were contacted by Apple's legal department.
So this was something in development though not necessarily what we will get down the line. Is anyone else depressed that it still uses a 133Mhz bus? Hmmmm...
<strong>What exactly was it? The link doesn't work anymore.</strong><hr></blockquote>
I am looking at the picture and thinking there is no way the mystery port between the Firewire and Ethernet ports is for a modem. Its just way too small.
That is a preproduction motherboard, usually seeded in the late stages of development three to eight months before release.
We'll see non-ruddy versions of these at MWNY.
[ 05-02-2002: Message edited by: Nostradamus ]</p>
[ 05-02-2002: Message edited by: fellow722 ]</p>
<strong>This sounds interesting, did anybody get a picture? I would love to see this thing instead of just hear about it.</strong><hr></blockquote>
Look up!
133 MHz bus? For the NEXT generation? Please. Apple would be foolishto release anyhting lower than 200 MHz.
Looks a lot like the mysterious port on the motherboard to me.
<strong>Ebay pulled it. Great big bunch of wankers, in my opinion. I bet it was a doctored image from someone who knew that Apple test mobos are red.
133 MHz bus? For the NEXT generation? Please. Apple would be foolishto release anyhting lower than 200 MHz.</strong><hr></blockquote>
But I thought the whole point of DDR would be that on a 133 MHz bus, the ram ran at 266 MHz (since it goes on teh front and back of the clock or whatever). Is my thinking wrong here?
On AMD's boards, some have 266 MHz ddr. Does that mean the bus is running at 533? Or is it like I said and is running at 133, but since it is ddr, it is virtually 266?
128bit data paths * 133MHz * 2(for DDR) / 8 bits (8 bits per byte) = 4.266GB/sec
But the specs said 133MHz bus capable of 1GB/s throughput, yet that would mean it uses only SDRAM at 133MHz like the current towers. But the specs also say DDR and "full" 128bit datapaths. And then there's assertion in the specs that the cache runs at 4GB/s. What would be the point of having L3 cache slower than main memory?
<img src="confused.gif" border="0">
[ 05-02-2002: Message edited by: Nostradamus ]</p>
"This board was sent to a friend of mine and was issued as a test board. I
have been notified by Apple and eBay that this board was never intended for
sale and the auction was cancelled at Apple's request. I apologize to all
that this turned out to be a problem.
To all that were interested, this board runs GREAT. The DDR memory really
improves the performance. I hope I am able to offer similar boards in the
near future."
What we have seen though, is widespread use of the 7460 which is basically a 7450 with an improved method of manufacter. Still this is nothing to sneeze at. They offer linear performance over the 7450 at better speeds. The range so far has been ~900-1400MHz but it is hard to give exact numbers due to the variety of motherboards they exist on. I was shocked when the newer motherboard we were working on were not released at the Expo this past summer. Fully working DDR-SDRAM motherboards were ready with a full assortment of modern motherboard features including Fibre Firewire at speeds up to 1600Mbps with a fibre port and 2 lower speed (800Mb) normal ports. USB1.1 was still there but the board had support for DDR-SDRAM and an advanced system bus running at 266MHz.
So what do you all think?