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What is PCI frequency for a RAID card?

Forum CPU & Components : Other Components - What is PCI frequency for a RAID card?

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Vince604   08-28-2002 at 04:17:00 AM

I've seen 33MHz and 66MHz PCI frequency for RAID cards and am wondering what that speed is for?

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upec   08-28-2002 at 07:28:59 AM
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A regular PCI bus is capable of of moving 133MB/sec of data since it is a 32 bit bus running at 33MHz.

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Vince604   08-28-2002 at 08:08:42 AM
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So a RAID card that has a PCI frequency of 33MHz is enough for anyone that isn't using a dual processor mobo?

Then 66MHz is double? and only useful for dual mobos?

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upec   08-28-2002 at 07:06:00 PM
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Some device already need more bandwidth than regular PCI can offer so 66MHz bus should be benifit to single processor box too.

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Vince604   08-28-2002 at 10:52:12 PM
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What you mean? But isn't the motherboard or chipset limiting the bandwidth? I mean for example a regular P4 motherboard can either handle 100/133MB/s which would be 33MHz vs a dual Xeon Motherboard which should be able to handle double that?..

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Crashman   08-29-2002 at 05:21:08 AM
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66MHz cards are backwards compatable to 33MHz. 66MHz slots are used on server and workstation boards.

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Vince604   08-29-2002 at 05:41:21 AM
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Yes and server boards are usually dual processing boards correct?

I'm trying to figure if I need a 66MHz RAID card or a 33MHz RAID card because that affects the prices.
and I'm using a Gigabyte GA-8IHXP mobo.

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Crashman   08-29-2002 at 05:46:23 AM
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For that board and other PC boards, all slots operate at 33MHz, so there is no advantage to the 66MHz card.

<font color=blue>You're posting in a forum with class. It may be third class, but it's still class!</font color=blue>

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Vince604   08-29-2002 at 09:44:49 AM
- 0 +

Alright perferct then. Thanks that's all I needed to know.

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