Hi Timothy,

From the results of your experiments, I would conclude that drive 'e' has
failed. All the other drives work when connected by themselves or together,
but as soon as you connect 'e', then anything else connected to that same
cable (eg 'd') also does not work. This would indicate that 'e' is dragging
down the IDE signal lines.

One possibility is that the power connecter to 'e' is not delivering power.
Try swapping it with the power connector for a different drive. The reason
why this could affect 'd' also when they are both connected is because it it
is not getting power, it will try to draw current from the signal lines,
more than it is designed to provide, and causes anything on the same bus to
not work.

Russ Poffenberger
[log in to unmask] 

-----Original Message-----
From: Personal Computer Hardware discussion List
[mailto:[log in to unmask]] On Behalf Of Timothy
Sent: Tuesday, May 06, 2008 6:05 PM
To: [log in to unmask]
Subject: [PCBUILD] IDE Hard Drive not recognized in WinXP


I have a hard drive that used to work, but recently does not. It IS
recognized by BIOS, but not by Windows. Here's the setup

Intel Core2 Duo (E6750 @ 2.66GHz)
Motherboard Asus P5N-E SLI
NVIDIA nForce 430 Serial ATA Controller onboard

c: WDC hard Drive = bootdisk (SATA)
d: Maxtor drive (IDE) [formatted NTFS]
e: Maxtor drive (IDE) [formatted NTFS]
f: CD-ROM drive (SATA)

BIOS finds all these devices at bootup. no problems with c: and f: in 
Windows
if both d: and e: are connected, Windows XP Pro SP2 reports only c: and f:
if only d: is connected, Windows reports c: d: and f: if only e: is
connected, Windows reports c: and f:

all drives worked at one time in this computer. suspect the trigger was 
failure of old CD drive and multiple connects/disconnects

Notable:
- same power plug and data cable plug from d: only test were used to 
connect e: only
- no difference if jumper on e: is switched from CS to Master (both d: 
and e: previously jumpered CS, and only e: connected)
- no difference if e: is connected by either A or B on IDE cable

-TIM

                         PCBUILD's List Owners:
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                         PCBUILD's List Owners:
                      Bob Wright<[log in to unmask]>
                        Mark Rode<[log in to unmask]>