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Many connectors on case will not fit motherboard
I have bought an Antec Titan 550 case
http://www.antec.com/us/productDetails.php?ProdID=91550 and a Tyan Thunder K8WE (S2895) (dual Opteron) motherboard http://www.tyan.com/products/html/thunderk8we_spec.html Many of the connectors from the case will not fit the motherboard because the keys are in the wrong place. The Audio, USB and Firewall connectors are *all* affected. The USB looks totally odd, with no resemblance of sense. The firewall and audio can be made to work by moving a key around I think. USB ----- The motherboard uses a 10 pin header as follows. 1 = VCC ; 2 = VCC 3 = DATA- ; 4 = DATA+ 5 = DATA+ ; 6 = DATA+ 7 = GND ; 8 = GND 9 = key ; 10 = GND The cable from the case has a 10 pin header, but with a key in pin 1 and no cable in pin 2. There are red cables on pins 9 and 10. So a) A red cable on the connector goes to GND on the motherboard (odd use of a red wire) b) A red cable on the connector goes to a missing pin (key) on the motherboard. c) The key on the cable in pin 1 prevents it going onto the header where VCC leaves the motherboard. This seems *very* odd. This makes me think someone has wired the connector wrong. Looking at the manual for the Antec Titan case: http://www.antec.com/pdf/manuals/Titan550_us.pdf the pin layouts are the same as the motherboard manual. So I think they are both using the same standard which according to the manual on the case is an Intel standard. Hence I think someone has wired it all wrong. Firewire -------- Motherboard has a 14 pin header as follows: 1 = NC ; 2 = Key 3 = TPA+ ; 4 = TPA - 5 = GND ; 6 = GND 7 = TPB+ ; 8 = TPB - 9 = +12V ; 10 = +12V 11 = GND ; 12 = GND 13 = KEY ; 14 = KEY This means the outer 4 pins are not used, but the other 10 are all used, although four of them are GND. The case has a cable with a 10 pin connector (i.e. not 14 like the motherboard). But pin 10 has a key in it. So this can *not* fit the motherboard in any way. The manual on the case does show a 10 pin cable, whereas the motherboards manual shows a 14 pin header. So they can't even agree on the number of pins there. Front Panel Audio ------------------ The audio cable from the front panel has a 10 pin connector. The pinout is not described in the manual on the case. There are in fact 8 or so single connectors connected to this connector, so one can in principle connect it up any way one wants using them. The motherboard manual shows a layout like this: 1 = MIC_L ; 2 = GND 3 = MIC_R ; 4 = VCC- 5 = LINE_FPOUT_R ; 6 = LINE_OUT_R 7 = AUD_DET ; 8 = key 9 = LINE_FPOUT_L ; 10 = LINE_OUT_L The cable has a key on pin 4, so it it impossible to connet put the connector on the header and pick up VCC- (Quite why you would want to pick up VCC- is not obvious to me. Would it ever be needed - perhaps for bias on microphones or something ? ). -- Dave K MCSE. MCSE = Minefield Consultant and Solitaire Expert. Please note my email address changes periodically to avoid spam. It is always of the form: month-year@domain. Hitting reply will work for a couple of months only. Later set it manually. |
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