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| 7100 vs 8100 mobo - differences? |
Posted by: Bunsen on 2013-08-16 09:31:30
Pretty much the title is the question. What, if any, are the differences between the 7100 and 8100 logic boards? Assuming identical speeds.
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Posted by: Bunsen on 2013-08-16 09:41:48
According to lowendmac:
. | 7100 | 8100 |
-------------------------
RAM slots | 4 | 8 |
Max RAM | 136 | 264 | MB
power | 230 | 200 | watts
------------------------- Anything else significant that anyone is aware of?
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Posted by: LCGuy on 2013-09-15 06:59:40
Power connector - the 7100 uses the IIcx/IIci/IIvx/Q700/Q650 power connector. 8100 uses the Quadra 900/PCI PowerMac power connector.
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Posted by: trag on 2013-10-21 12:14:42
The 8100 has a second "Fast" internal only SCSI bus using a NEC 53CF96 chip -- later SYMBIOS 53CF96 and still later LSI Logic 53CF96.. The 7100 has only the one SCSI bus.
This is why I suspect that the "MESH" chip in the x500 and X600 PCI PowerMacs is actually just a licensed 53CF96. The 9500 succeeded the 8100 and the second SCSI bus stayed exactly the same in functionality but the chip changed from 53CF96 to MESH.
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Posted by: uniserver on 2013-10-21 13:07:47
just a licensed 53CF96 it blows my mind just how big technology companies were able to:
1. get projects completed.
2. make any money.
after the taxes/payroll/building costs/bills/logistics/advertising/UIA/licensed/royalties/ lawyers… yada yada
and all of what goes in to something like for example a Quadra 700.
Design / Plastic's / PCB / Parts / Placement / PSU / etc. takes a big crew of people. and a whole lotta vendors.
I have no idea legally who all gets paid for using technology from
Standards/Associations - Licensed Technology… POOOF!
I guess I'd be interested to see a breakdown.
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