Overclock.net › Forums › Components › Hard Drives & Storage › Why only 4 partitions
New Posts  All Forums:Forum Nav:

Why only 4 partitions

post #1 of 3
Thread Starter 
Why is it, that on a conventional single drive, you can only have 4 partitions?
post #2 of 3
You can only have 4 primary partitions. Logical or extended partitions can be more. It is just a limitation of current PC architecture.
Legendary
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6750 ASUS P5B Deluxe XFX 8600GT 2 x 2GB G.Skill PQ 
Hard DriveOSMonitorKeyboard
Seagate 250GB Windows 7 x64 Samsung 225BW Saitek Eclipse 
PowerCaseMouseMouse Pad
PC P&C Quad 750W Silencer Thermaltake Tsunami Dream Logitech MX518 Func 1030 
  hide details  
Reply
Legendary
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6750 ASUS P5B Deluxe XFX 8600GT 2 x 2GB G.Skill PQ 
Hard DriveOSMonitorKeyboard
Seagate 250GB Windows 7 x64 Samsung 225BW Saitek Eclipse 
PowerCaseMouseMouse Pad
PC P&C Quad 750W Silencer Thermaltake Tsunami Dream Logitech MX518 Func 1030 
  hide details  
Reply
post #3 of 3
Because the partition table in the MBR can only hold 4 entries. It's an artifact of the original design. If you need more partitions, create 1-3 primary and 1 extended partition. In the extended partition, you can create as many logical drives as needed. Here are some links explaining the issue further:
http://en.wikipedia.org/wiki/Partiti...artition_types
http://en.wikipedia.org/wiki/Master_Boot_Record
http://en.wikipedia.org/wiki/Extended_boot_record
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
3800x2 DFI NF4 SLI-D HD4850 2gb GSkill ZX 
Hard DriveOSMonitorPower
6+TB of insanity XP Pro L2410NM + DYLM24D6 Corsair 750TX 
CaseMouse
Rocketfish MX 510 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
3800x2 DFI NF4 SLI-D HD4850 2gb GSkill ZX 
Hard DriveOSMonitorPower
6+TB of insanity XP Pro L2410NM + DYLM24D6 Corsair 750TX 
CaseMouse
Rocketfish MX 510 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Hard Drives & Storage
Overclock.net › Forums › Components › Hard Drives & Storage › Why only 4 partitions