Overclock.net › Forums › Components › Hard Drives & Storage › Hard drive missing 20GB
New Posts  All Forums:Forum Nav:

Hard drive missing 20GB - Page 2

post #11 of 13
Hard drives never are their stated capacity because Hard drive companies use metric not binary measuring system for hard drives. Also the stated size is the drive's size unformated.

So in metric the drive is technically 320GB.

But also you got to take into account room needed for partition tables, formating, etc etc which all cause a drive to loose space.
 
Gsvlip Dudyrm
(15 items)
 
Oda'maksv
(9 items)
 
CPUMotherboardGraphicsRAM
3770k @ 4.5 1.312 load Zotac Z77 ITX Wifi GTX 1070 Gaming 2126/2249 w/ Hybrid cooler TridentX 16GB 2400MHz 
Hard DriveHard DriveCoolingCooling
Samsung 850 Pro 1TB Seagate 2TB H105 EVGA Hybrid GPU cooler 
OSMonitorKeyboardPower
Windows 10 Asus MG279Q - 24" 144Hz 1080p Filco Majestic II w/ Cherry Reds Seasonic X 760W 
CaseMouseMouse PadAudio
Bitfelix Prodigy Logitech G400 Razer Goliath AKG A701 
AudioAudio
JDS Labs Objective 2 JDS Labs ODAC 
CPUMotherboardGraphicsRAM
Core i5 750 3.99 (190x21) 1.376v Load ASUS P7P55d-E Pro GTX 670 FTW <- Poor overclocker :( 8GB (4x2GB) G.Skill DDR3 1600 
Hard DriveHard DriveOptical DriveOS
Samsung 830 Evo 128GB 2x 2TB  Some DVD drive OSX 10.10.4 
MonitorPowerCaseMouse
Asus 1080P Crap TX 750 HAF 922 G400s 
Mouse PadOther
Apple Keyboard Xbox One controler 
CPURAMHard DriveHard Drive
C2D 2,26GHz under volted @ .978v 8GB  Crucial M4 64GB SSD 500GB Scorpio Black 
OSMonitorKeyboardMouse
OS X 10.0 1280x800 Built-in Trackpad 
Audio
Built-in 
  hide details  
Reply
 
Gsvlip Dudyrm
(15 items)
 
Oda'maksv
(9 items)
 
CPUMotherboardGraphicsRAM
3770k @ 4.5 1.312 load Zotac Z77 ITX Wifi GTX 1070 Gaming 2126/2249 w/ Hybrid cooler TridentX 16GB 2400MHz 
Hard DriveHard DriveCoolingCooling
Samsung 850 Pro 1TB Seagate 2TB H105 EVGA Hybrid GPU cooler 
OSMonitorKeyboardPower
Windows 10 Asus MG279Q - 24" 144Hz 1080p Filco Majestic II w/ Cherry Reds Seasonic X 760W 
CaseMouseMouse PadAudio
Bitfelix Prodigy Logitech G400 Razer Goliath AKG A701 
AudioAudio
JDS Labs Objective 2 JDS Labs ODAC 
CPUMotherboardGraphicsRAM
Core i5 750 3.99 (190x21) 1.376v Load ASUS P7P55d-E Pro GTX 670 FTW <- Poor overclocker :( 8GB (4x2GB) G.Skill DDR3 1600 
Hard DriveHard DriveOptical DriveOS
Samsung 830 Evo 128GB 2x 2TB  Some DVD drive OSX 10.10.4 
MonitorPowerCaseMouse
Asus 1080P Crap TX 750 HAF 922 G400s 
Mouse PadOther
Apple Keyboard Xbox One controler 
CPURAMHard DriveHard Drive
C2D 2,26GHz under volted @ .978v 8GB  Crucial M4 64GB SSD 500GB Scorpio Black 
OSMonitorKeyboardMouse
OS X 10.0 1280x800 Built-in Trackpad 
Audio
Built-in 
  hide details  
Reply
post #12 of 13
Quote:
Originally Posted by Lord Xeb View Post
Hard drives never are their stated capacity because Hard drive companies use metric not binary measuring system for hard drives. Also the stated size is the drive's size unformated.

So in metric the drive is technically 320GB.

But also you got to take into account room needed for partition tables, formating, etc etc which all cause a drive to loose space.
The space lost in formatting is negligible. The 1024 vs 1000 is where all the space is "lost".

(edit) You can prove it with math too . 320 GB= 320,000,000,000 Bytes, according to the HD manufacturer. Divide that by 1024 to get how many Kilo bytes in binary (windows' count), you get 312,500,000. Divide by 1024 again to get kilobyes to megabytes, you get 305,175. Divide that by 1024 again to get our nice round gigabyte count, and we get the 298.
Edited by Crazy9000 - 4/22/11 at 2:05am
SUPERPWN
(12 items)
 
  
CPUMotherboardGraphicsRAM
Core i5 4670K Asus z87-Pro MSI GTX 1080 Aero 32GB DDR3 Gskill Ripjaws 
Hard DriveOSMonitorMonitor
4TB Seagate Windows 8 x64 Overlord x270 OC HP ZR27 
MonitorKeyboardPowerAudio
Asus PG279Q G-Tune Topre Realforce 800w Yulong D100 DAC with Denon D7000 headphones 
  hide details  
Reply
SUPERPWN
(12 items)
 
  
CPUMotherboardGraphicsRAM
Core i5 4670K Asus z87-Pro MSI GTX 1080 Aero 32GB DDR3 Gskill Ripjaws 
Hard DriveOSMonitorMonitor
4TB Seagate Windows 8 x64 Overlord x270 OC HP ZR27 
MonitorKeyboardPowerAudio
Asus PG279Q G-Tune Topre Realforce 800w Yulong D100 DAC with Denon D7000 headphones 
  hide details  
Reply
post #13 of 13
Quote:
Originally Posted by Razinhail View Post
1) Manufacturers usually use 1000 instead of 1024 for Kilobytes, Megabytes, and Gigabytes so that skews it somewhat. Apparently, the marketing department can't wrap their heads around that extra "24" in each 1000.
Oh, they understand it perfectly well. The marketing department intentionally did this to make their numbers look bigger and confuse people. Way back in the mists of prehistory, hard drives actually did use 1024. But once the first one switched to 1000, that was the end of the party.
Underground
(14 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 920 C0 ASUS P6T6 WS Revolution GTX 460 TR3X6G1600C8D 
Hard DriveOptical DriveCoolingOS
WD1001FALS SAMSUNG SH-S223F 22X DVD MULTI Corsair H50 Fedora 16 KDE x86_64 
MonitorKeyboardPowerCase
HP w19b Microsoft Comfort Curve Corsair CX600 Thermaltake Armor VA8003BWS 
MouseMouse Pad
Razer DeathAdder Black 
  hide details  
Reply
Underground
(14 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 920 C0 ASUS P6T6 WS Revolution GTX 460 TR3X6G1600C8D 
Hard DriveOptical DriveCoolingOS
WD1001FALS SAMSUNG SH-S223F 22X DVD MULTI Corsair H50 Fedora 16 KDE x86_64 
MonitorKeyboardPowerCase
HP w19b Microsoft Comfort Curve Corsair CX600 Thermaltake Armor VA8003BWS 
MouseMouse Pad
Razer DeathAdder Black 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Hard Drives & Storage
Overclock.net › Forums › Components › Hard Drives & Storage › Hard drive missing 20GB