Hi all,
Newby here. I am building up my first machine this weekend.
I have an Arctic Cooling Silentium T2 case with the Seasonic 350w (450w) psu. I am putting in the Asus A8R-MVP mobo. For the record, probably not the best combination if you want to install a FDD or a secondary IDE drive as these are blocked by a metal HDD holder. However, my SATAII drive seems to fit as the cables are elsewhere. As an aside, I had to use the legacy power (4 pin) as the Arctic SATA power cable does not have the length to reach the HDD power plug.
I have now hit a snag. I have finally managed to put the mobo into the case but I ain't got no power to switch on.
I am including a picture of the mobo from the Asus which you can enlarge. http://uk.asus.com/products4.aspx?modelmenu=2&model=787&l1=3&l2=15&l3=236
I have plugged in a 4 pin 12V power plug into a square plug. On the picture you see it in the top right corner (to the right of the Asus heatsink which is below the pink rectangle)
Now I would have thought that it needs more than this and there is a 24 pin plug at the bottom (labled EATXPWR on the mobo). The problem is the PSU has only a 20 pin plug. Now, after I switched the machine on with only the 12V plug, nothing happened. After unplugging and earthing myself etc, and much wailing and gnashing of teeth, i noticed that the 20 pin PSU plug might fit into the 24 pin mobo plug. It did although obviously 4 pins short.
in the Asus booklet, the 4 pins without a connection is are a +3V, +12V, Ground and +5V. Now, if I have plugged in the 4 pin square power plug mentioned above and this 20 pin into the 24 pin socket, can I switch the machine on. I am wary of doing this until someone tells me "Fine. Go ahead."
I think it might be because of what the Arctic Cooling website says but their English is a little obfuscated. Here is the text:
Does any motherboard need an ATX 2.0 PSU with a 24 pin plug?
For ATX there is no motherboard that requires an ATX 2.0 PSU or a 24 pin plug. If the PSU provides enough continuous power at the 12 Volt rail (as ours), all configurations will work fine. Our PSU is tested with a 3.8 GHz Pentium 4 and a NVIDIA 6800 Ultra VGA board.
Using the 20 pin mainboard plug at mainboards with 24 pin socket you have to install in addition a 5.25" power plug in case there is such a socket (depending to the mainboard manufacturer) to get the power for the VGA board. Don't use a 20 to 24 pin adapter!
To supply the CPU with power the mainboard uses a 4 or 8 pin socket. 4 pins are fine to supply CPUs up to the Intel Pentium D 840. In case of the 8 pin socket, 4 pins will keep empty. Don't use an adapter.
Bolding supplied by moi. It would seem that a 20 pin plug in a 24 pin socket along with the 4 pin 12V plug in the top right corner for the CPU should work. Just trying to prevent a blown mobo before I even start.
Thanks
Newby here. I am building up my first machine this weekend.
I have an Arctic Cooling Silentium T2 case with the Seasonic 350w (450w) psu. I am putting in the Asus A8R-MVP mobo. For the record, probably not the best combination if you want to install a FDD or a secondary IDE drive as these are blocked by a metal HDD holder. However, my SATAII drive seems to fit as the cables are elsewhere. As an aside, I had to use the legacy power (4 pin) as the Arctic SATA power cable does not have the length to reach the HDD power plug.
I have now hit a snag. I have finally managed to put the mobo into the case but I ain't got no power to switch on.
I am including a picture of the mobo from the Asus which you can enlarge. http://uk.asus.com/products4.aspx?modelmenu=2&model=787&l1=3&l2=15&l3=236
I have plugged in a 4 pin 12V power plug into a square plug. On the picture you see it in the top right corner (to the right of the Asus heatsink which is below the pink rectangle)
Now I would have thought that it needs more than this and there is a 24 pin plug at the bottom (labled EATXPWR on the mobo). The problem is the PSU has only a 20 pin plug. Now, after I switched the machine on with only the 12V plug, nothing happened. After unplugging and earthing myself etc, and much wailing and gnashing of teeth, i noticed that the 20 pin PSU plug might fit into the 24 pin mobo plug. It did although obviously 4 pins short.
in the Asus booklet, the 4 pins without a connection is are a +3V, +12V, Ground and +5V. Now, if I have plugged in the 4 pin square power plug mentioned above and this 20 pin into the 24 pin socket, can I switch the machine on. I am wary of doing this until someone tells me "Fine. Go ahead."
I think it might be because of what the Arctic Cooling website says but their English is a little obfuscated. Here is the text:
Does any motherboard need an ATX 2.0 PSU with a 24 pin plug?
For ATX there is no motherboard that requires an ATX 2.0 PSU or a 24 pin plug. If the PSU provides enough continuous power at the 12 Volt rail (as ours), all configurations will work fine. Our PSU is tested with a 3.8 GHz Pentium 4 and a NVIDIA 6800 Ultra VGA board.
Using the 20 pin mainboard plug at mainboards with 24 pin socket you have to install in addition a 5.25" power plug in case there is such a socket (depending to the mainboard manufacturer) to get the power for the VGA board. Don't use a 20 to 24 pin adapter!
To supply the CPU with power the mainboard uses a 4 or 8 pin socket. 4 pins are fine to supply CPUs up to the Intel Pentium D 840. In case of the 8 pin socket, 4 pins will keep empty. Don't use an adapter.
Bolding supplied by moi. It would seem that a 20 pin plug in a 24 pin socket along with the 4 pin 12V plug in the top right corner for the CPU should work. Just trying to prevent a blown mobo before I even start.
Thanks
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. Searched the house up and down for an old kettle one but no luck as we have a cordless at home.