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主板815芯片,硬盘昆腾火球8.4G,在开机时显示ATA66,但进入系统后:
[root@localhost cyx]# hdparm -i /dev/hda
/dev/hda:
Model=QUANTUM FIREBALL CR8.4A, FwRev=A5U.1400, SerialNo=928913122233
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=32256, SectSize=21298, ECCbytes=4
BuffType=DualPortCache, BuffSize=418kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=16514064
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 *udma2
AdvancedPM=no WriteCache=enabled
Drive conforms to: ATA/ATAPI-4 T13 1153D revision 15: 1 2 3 4
* signifies the current active mode
这里显示是UDMA2,但ATA66应该是UDMA4才对啊!
设置:
[root@localhost cyx]# hdparm -X68 /dev/hda
/dev/hda:
setting xfermode to 68 (UltraDMA mode4)
显示没错误提示,再次hdparm -i /dev/hda,还是老样子UDMA2。
为什么?主板和硬盘都支持都特性,难道系统不支持,难怪我都机器速度很慢。请各位帮忙。 |
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