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SPD Troubleshooting Guide -10- 10/25/00
Other Issues
1) Some of my hard drives show up during post and some don’t
Check on the following:
• Are you using third party SCSI adapters? System memory limitations limit the number & size of option
ROMs in the system. If you place too many adapters or adapters that take up too much space in memory,
they may not install and show the hard drives connected to them.
• If you disconnect your hard drives from the third party adapter and connect them to the on-board adapter, do
they show up?
• Verify that pin 1 on the data cable connects to pin 1 on the device. In most cases, if you orient the data cable
so that the colored stripe on the cable is pointing towards the power connector on the device, you will have
proper orientation.
• Verify that the device power cable is firmly connected.
• Have you properly terminated all your hard drives? If you are using Ultra 2 or Ultra 160 drives without a
hot-swap backplane, place a terminator in the last connector on the SCSI cable. Ultra 2/Ultra 160 devices do
not provide their own termination logic like Ultra Wide devices did.
• Check your SCSI ID numbers. SCSI devices must have their own unique ID on the SCSI bus. This number
is set automatically when using an Intel SCSI hot-swap backplane, but must be set with jumpers on the
device when using a SCSI cable. ID number should be set starting at 0 and must be set lower than 8 if
booting from the drive.
If your hard drives still do not show, please fill out the included customer support form and call your customer
support representative. Please pay special attention to the following information:
• What add-in adapters do you have in your system (manufacturer and model number)?
• What types of hard drives are in the system (manufacturer and model number)?
• If you are using a SCSI cable to attach your drives, what kind of terminator do you have at the end of the
cable? (manufacturer and type e.g. ultra 160)
• What are the SCSI IDs of the devices on your SCSI bus?
• How many SCSI channels are you using?
• Are you using a hot-swap backplane with your third party adapter?
• What memory is the system using? Is it on the tested memory list? Contact your customer service
representative for the latest tested memory list.
2) My hard drives don’t show up under Windows NT
Verify that the system detects all your drives during POST (see Issue 8). IDE devices list on the screen by the server
board BIOS. SCSI drives will list on the screen by the SCSI BIOS.
Windows NT 4.0 does not ship with the latest drivers for some SCSI controllers. Because of this, direct Windows NT
installation to the proper drivers during installation. To do this, you must press the F6 key during installation start up at
the sight of the first “installation blue screen.” This will allow you to skip auto-detection and manually install a driver.
The other way to perform a manual install is to use the three boot floppies. When asked to perform an auto detection
of mass storage devices or do it manually, choose to do it manually and you will be asked to choose from a list or
provide the driver from a floppy. If you are unsure about what you should choose from the list, contact your customer
service representative.