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What does this option do?

post #1 of 3
Thread Starter 
In the BIOS I have Enable/Disable Isoc and Enable/Disable IO Serial Port A. What do they do?

Thank you.
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X79-GCN
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EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
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post #2 of 3
Isoc = Isochronous data. From Wikipedia entry:
Quote:
A sequence of events is isochronous if the events occur regularly, or at equal time intervals. Isochronous timing differs from synchronous timing, in that the latter refers to relative timing between two or more sequences of events. The term isochronous is used in different technical contexts, but often refers to the primary subject maintaining a certain interval, despite variations in other measurable factors in the same system.


From the information I gathered Isoc is mainly used for data transfer problems, i.e. you plug in a USB mouse in Windows 7 and it doesn't work, enable it in the bios now it works. Basically the system will guarantee a steady flow of data so you don't get things like broken audio streamed from USB or USB mouses not working.

I'd imagine the Enable/Disable Serial IO port is probably to disable the mini-din-6 PS/2 keyboard and mouse ports. Those are the only two ports left that I would consider serial ports besides USB, so if you use a PS/2 mouse/keyboard it's probably not a good idea to disable them. I doubt many people use mini-din-6 mouses now. All the older serial ports like DB25 (AKA parallel printer port) and DE9 (RS232 programming/gaming port) are no longer included in currently manufactured motherboards.
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post #3 of 3
Thread Starter 
Quote:
Originally Posted by anoob View Post

Isoc = Isochronous data. From Wikipedia entry:
From the information I gathered Isoc is mainly used for data transfer problems, i.e. you plug in a USB mouse in Windows 7 and it doesn't work, enable it in the bios now it works. Basically the system will guarantee a steady flow of data so you don't get things like broken audio streamed from USB or USB mouses not working.

I'd imagine the Enable/Disable Serial IO port is probably to disable the mini-din-6 PS/2 keyboard and mouse ports. Those are the only two ports left that I would consider serial ports besides USB, so if you use a PS/2 mouse/keyboard it's probably not a good idea to disable them. I doubt many people use mini-din-6 mouses now. All the older serial ports like DB25 (AKA parallel printer port) and DE9 (RS232 programming/gaming port) are no longer included in currently manufactured motherboards.

Excellent Answer! +1
X79-GCN
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Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
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XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
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X79-GCN
(22 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3930K 4.5GHz HT GIGABYTE GA-X79-UP4 AMD R9-290X GEil Evo Potenza DDR3 2400MHz CL10 (4x4GB) 
Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
MonitorKeyboardPowerCase
BenQ XR3501 35" Curved Corsair Vengeance K90 Seasonic X-1250 Gold (v2) Corsair 900D 
MouseAudio
Logitech G400s Senn HD 598 
  hide details  
Reply
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