macccc schrieb:
Vielleicht hat Apple Festplatten von Toshiba verbaut, die rauschen nämlich. Ich habe bei meinem iBook den Fehler gemacht und habe eine Toshiba eingebaut - seitdem rauscht das iBook, obwohl sie mit 4200 Umdrehungen läuft. Ich will ja keine Werbung machen, aber Festplatten von Samsung sind ein Traum dagegen, weil sie fast nicht hörbar sind. Sogar meine 3,5" von Samsung im PC ist sehr leise. Deshalb bin ich der Meinung, dass es sehr wohl die Festplatte ist, die im Powerbook rauscht.
Edit: hatte mich vorher verschrieben, ist natürlich ne Seagate Platte
Also in meinem Powerbook 17" habe die eine Seagate Platte verbaut. Ob das rauschen jetzt von der Platte ist oder von einem Lüfter kamm man schwer sagen, ich habe zumindest noch nie eine Fastplatte rauschen höhren.
Klingt also eher nach einem Lüfter, was ich mir auch vorstellen kann.
Das ganze muß man sich so vorstellen als wenn einer durch die Zähne atmet, also sehr leise, irgendwann fragt man sich "läuft der eigentlich noch?"
Hier mal die Daten der Platte:
[font=Letter Gothic Line, MS LineDraw][size=-1]ST-9100823A
Momentus 5400.2
FORMATTED CAPACITY (GB) __________________100
ACTUATOR TYPE ____________________________VOICE COIL
CYLINDERS __PHYSICAL______________________
HEADS ______PHYSICAL______________________4
DISCS (3.5 in) ___________________________2
MEDIA TYPE _______________________________THIN FILM
HEAD TYPE ________________________________GMR
RECORDING METHOD _________________________EPRML RLL 0,11 ZBR
INTERNAL TRANSFER RATE (Mbytes/sec) ______up to 48.25
SUSTAINED TRANSFER RATE (MB/sec)__________up to 38.0
EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 100
PIO/DMA/UDMA MODE (max) __________________4/2/5
SPINDLE SPEED (RPM) ______________________5400
AVERAGE LATENCY (mSEC) ___________________5.6
BUFFER ___________________________________8MB
Read/Write Multiple, Read Look-Ahead,
Multi-Segmented
INTERFACE ________________________________Ultra ATA/100
SECTORS PER DRIVE (LBA mode) _____________195,371,568
TPI (TRACKS PER INCH) ____________________100,780
BPI (KBITS PER INCH) _____________________up to 642,000
AVERAGE ACCESS (ms seek/read/write) ______12.5/12.5/14.5
SINGLE TRACK SEEK (ms seek/read/write) ___/1.5/2.0
MAX FULL SEEK (ms seek/read/write) _______/22/24
MTBF (power-on hours) ____________________330,000
SHOCK (G's):
operating (2 ms)_________________250
abnormal ________________________
nonoperating (2/1/.5 ms) ________900/800/400
ACOUSTICS (bels)
fluid bearing (typ/max-quiet/max-perf) _2.4/2.8/3.1
POWER DISSIPATION (watts) ________________
POWER REQUIREMENTS: +5V START-UP (amps) __1.0
POWER MANAGEMENT (Watts):
ACTIVE _______________2.3
IDLE _________________0.92
STANDBY (typ/max) ____0.18/
Physical:
Height (inches/mm): 0.374/9.5
Width (inches/mm): 2.75/69.85
Depth (inches/mm): 3.945/100.2
Weight (lb/g): .225/102
Set CMOS hard drive setup to Auto-Detect with LBA mode enabled.
MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE TO ACHIEVE FULL
CAPACITY.
Some systems BIOS have capacity limitations. Types that have
been identified are:
a 2.11GB or 4095 cylinder limitation
a 3.26GB or 6322 cylinder limitation
a 4.22GB or 8192 cylinder limitation
a 8.45GB Standard INT13 limitation (CHS[1024x256x63]x512)
a 33.8GB or 66,060,287 LBAs limitation
a 137.4GB or 268,435,455 LBAs limitation (28-bit limit)
and, if exceeded, may cause the system to hang during boot,
capacity reduction or it can truncate or wrap the cylinders when
auto-detect options set in the CMOS.
New INT13 Extensions and LBA mode in BIOS and FAT32 or NTFS-based
file systems are required to acheive full capacity. FAT32 file
system can create single partitions and logical drives up to 2TB.
FULL-CAPACITY solutions include third-party drive preparation
software, system BIOS update which supports LBA mode or third
party bios driven host adapters.
Default CHS translation:
16,383 cyl, 16 heads, 63 sectors = 8,455,200,780
========================
Windows XP Service Pack 1 and Windows 2000 Service Pack 3 with
48-bit LBA Address drivers are required for native support of
ATA (IDE) disc drives greater than 137GB.
Windows 98, Windows Millennium and Windows NT 4.x all have 137GB
native limitations supporting ATA (IDE) disc drives. Third-party
device drivers may be available from motherboard or host adapter
manufacturers for these legacy Windows operating systems.
Windows 95 FAT16 based operating systems are also limited to 8.4GB.
DOS 16-bit FAT file system cannot access more than 2.147 Gbytes per
partition.
Already low-level formatted at the factory.
Seagate reserves the right to change, without notice, product
offerings or specifications. (09/21/2004)[/size][/font]