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PCI Card Types


have installed a new Dell Poweredge 2950, but on ordering i did not include a PCI riser card. After noticing my error i contacted dell and they quickley dispatched said riser card. Unfortunatley the PCI card (Adaptec 2944w) does not fit it.I have a newer Adaptec Card (39160) that fits ok but that has an extra slot in the connector bus. have i made another error? Are there several types of PCI cards?

Hope you can help

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8/22/2022 - Mon

for info about the  PCI busses

check computer busses ...

there are links ...

hope this helps  ....


thanks for the link, do you have any suggestions if there is any way of the new 64-bit slot being backward compatible with an older 32 bit card or if there any adaptors ?


Yes there are several different types of SCSI connectors. 50 pin, 68pin, high density, very high density, just to name a few. What is the device that is needing to connect to the SCSI card? That information would help match up what is needed to get it working.
This is the best money I have ever spent. I cannot not tell you how many times these folks have saved my bacon. I learn so much from the contributors.

I know that  64Bit cards are  backwards compatible with  32 bit  SLOTS ....

to  be honest, I'm not sure about 32bit cards in  64 bit SLOTS
but  normaly  I  think  yes .....

Make  sure  the Voltage is correct ...
5V and  3.3V  ( correct me If Im' wrong ...)


The device is a Dell powervault 130t tape library.

The problem is that the old card is missing a locatation slot that is in the newer pci-x. so it will not insert. hence the question if an adaptor excists or even a different SCsi card that will support the 130t that has differential.

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