can i add ecc ram to a non-ecc pc

February 24, 2011 at 15:44:48
Specs: Windows xp, pentium 4 2.8/512 mb

i am adding 2gb ddr pc3200 ecc to my computer said my computer does not support ecc there is only 512 memory in it now and it is non-ecc so if i remove that one and add the 2gb ecc will it work?

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February 24, 2011 at 15:52:07

Why would you question crucial?

Did you look at the manual for the motherboard?

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February 24, 2011 at 16:23:54

um i dont have one because i got the computer from a friend but its a hp pavilion a819n i am really new to all this computer stuff but i know all this from googling alot
and crucial is confusing because they say

"Your system does not support ECC. Because ECC and non-ECC modules should not be mixed within a system, install the same type of modules that are already in your system"

so i wonder if i just remove the non-ecc one then put these in will it work like that?

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February 24, 2011 at 16:44:18

You may simply try it. I would wonder why you have ecc as it tends to cost more.

Run memtest to be sure it works.

"The era of big government is over," said Clinton 1996

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February 24, 2011 at 16:48:12

actually i am going to buy this from amazon i got a great deal 2 gb (2x1gb) for 22 bucks i havent find anything close for 1gb btw i only searched on amazon and ebay tho imma try searching in other sites too like newegg and tigerdirect

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February 24, 2011 at 16:59:44

ECC memory is generally used in servers & is different that non-ECC. ECC is 72-bit, non-ECC is 64-bit. The extra 8-bits in the ECC memory is used for error correction. Because of the difference in design, many standard desktop boards do not support ECC. If a reputable RAM site states that ECC is NOT supported, why would you even attempt it?

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February 24, 2011 at 17:04:20

BTW, ECC memory doesn't perform as well as non-ECC. Also, HP states that ECC memory is not supported:

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February 24, 2011 at 18:44:45

System Memory

* Two 184-pin DDR DIMM sockets
* Up to 2GB memory (the PC manufacturer's recommended maximum memory may differ)
* Register DIMM not supported

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February 25, 2011 at 12:59:49

Supported and able to use are two different things.

I have never put ecc in a non-ecc board just because it tends to cost so much.

But I have put non-ecc in systems that were meant for ecc and it did work degraded.

I agree that regular ram would be a better selection.

"The era of big government is over," said Clinton 1996

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February 25, 2011 at 13:41:07

yea thanks guys i found non-ecc ram 2gb for 10 bux more ASIN: B0002B0QNS
they said they pulled those ecc ram right out of a bunch of servers which i think is why
it is so cheap

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February 25, 2011 at 20:40:16

Old SIMM ram had parity and non-parity types which is analogous to ECC and non-ECC. We could always use parity in a non-parity system because the extra bit would be ignored. One would think the same would be true for ECC and non-ECC but I wonder if the ECC info is encoded in the SPD chip or if that only holds its frequency speed.

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February 26, 2011 at 05:16:14


I have seen some boards that can use either type. I assume it has to do with the memory controllers.

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