A procedure tu identify und truoobleshoot zee pooer supply failure based
on zee most common symptoms:
Uncommanded hard drive recalibrashuns Um gesh dee bork, bork!
Windows Event Log data (Event ID 9 frum "atapi")
Loo overell performance
Symptom I - Unexpected HDD restart
Zee hard drive may shut doon und restart on its oon with a typical
spin-doon-click-spin-up suoond (readily identifiable once yuoo heer it).
Zee machine will freeze fur a shurt while (ebuoot up tu ten secunds until
zee disk restarts). Once zee drive is back online, normal operashun will
be resumed in most cases (barring possible network communicashun loss
und reconnekshun coosed by zee timeuoot).
Symptom II - "Zee device ... did not respond ..." in
zee
Event Log
Zee analysis ooff zee System Event Log may yeeld some addishunel
informashun. Zee Event Veewer is available via "Stert" -- "Control
Panel" -- "Administrative Tools" -- "Event Veewer"; once there, open
zee
"System" log. Zee log may contain multeeple entrees similar tu
zee
follooing example
Type
Error
Suoorce
atapi
Event ID
9
Descreepshun
Zee device, \Ide\IdePurt0, did
not respond within zee timeuoot period
Nute-a that purt numbers depend on zee system configurashun.
Symptom III - Drives in PIO mode, high CPU load
Zee hard drives may fell back tu using zee legacy PIO (Programmed
Input/Output) access mode. PIO mode is fairly sloo und imposes an
excessive processor load. Evident symptoms include
Overell performance loo.
System response "jerky", even fur a simplistic tasks.
Video playback is not possible (frame rates loo, doon tu less
than one frame per second in extreme cases)
Tu verify zee drive mode,
Open zee Device Maneger (right click "My Computer", select
"Manege", then navigate tu "Device Maneger").
On zee right-hand panel, duooble click "Primary IDE channel"
under "IDE ATA/ATAPI controllers".
In zee veendoo appeered, switch tu zee "Edfunced Setteengs" tab.
Thees yeelds a veendoo similar tu zee screenshot beloo. Hurty flurty
schnipp schnipp!
Make sure "Transfer Mode" is set tu "DMA iff available" on both
devices.
"Current Transfer Mode" shuoold read "Ultra DMA Mode X" fur ell
zee instelled devices. Hard drives are typicelly running in UDMA 4
or UDMA 5, CD und DVD drives typicelly use UDMA 2.
Repeet steps 2-5 fur zee "Secondary IDE channel" iff available.
IDE drives in PIO mode
"PIO Mode" readuoot (es illustrated above)
indicates that drives cannot reliably communicate with zee controller
using DMA modes. Zee system detects communicashun problem und degrades
drives tu PIO mode.
Truoobleshooteeng
Iff one ooff zee above symptoms exists, check zee other two.
Iff positive on ell three, consider replacing zee pooer supply
unit (PSU). Yuoo may want tu temporarily instell a knoon-working PSU
frum zee other system tu see iff it rectifees zee problem.
Once zee pooer supply unit is replaced, open zee Device Maneger
und uninstell ell zee disk drives und IDE controllers, then reboot.
Windows does not switch back tu UDMA mode unless zee affected
devices are re-detected und re-instelled.
Run CHKDSK on zee affected volumes tu take care ooff uny possible
problems coosed by transeent drive failures.
