Are DIMM and UDIMM RAM Compatible?

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CheddarIzBetter

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Jun 26, 2013
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I have an ASUS M5A97 mobo with an AMD Phenom II x4 965 CPU. I currently have 2x4GB of this RAM (http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=7104116) in it, but I saw this ram (http://www.tigerdirect.com/applications/searchtools/item-Details.asp?EdpNo=4864681&sku=P33-6315) for a pretty decent price. If I put the 2nd type (the UDIMM) in along side the original RAM, will they work together or should I not mess with it?
 
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MTBR2001

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Oct 28, 2014
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i was reading on this website if it helps http://www.samsung.com/global/business/semiconductor/product/computing-dram/detail?iaId=693&productId=7151

it states " Memory for current generation desktop computers is available as DIMM (dual inline memory modules). Unbuffered DIMMs are the most common type of memory used on desktop systems. A UDIMM memory module does not contain any buffer or additional hardware register between the memory module and the system’s memory controller. UDIMMs also consume much lower power, and have much lower data access latencies than buffered or registered memory. Thus, UDIMMs are an excellent solution for low-cost computing, such as home/personal computing." EDIT...UDIMM does not work on mine....found out it is for servers too NON-ECC is the way to go..

and this paragraph is why i thought UDIMM would work but it did NOT !!!!


"Memory for current generation desktop computers is available as DIMM (dual inline memory modules). Unbuffered DIMMs (or UDIMMs) are the most common type of memory used on desktop systems. A UDIMM memory module does not contain any buffer or additional hardware register between the memory module and the system’s memory controller. UDIMMs also consume much lower power, and have much lower data access latencies than buffered or registered memory. Thus, UDIMMs are an excellent solution for low-cost computing, such as home/personal computing".
 
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MTBR2001

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i think UDIMM might fit in a DIMM slot and have no idea which 2 types of motherboards you are talking about. it says the lower voltage (on UDIMM) at 1.35v will increase automatically to 1.5 v(DIMM) as needed...so they might even work together

i'm looking into it myself.....EDIT nope UDIMM is for servers too..didn't work
 
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MTBR2001

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Today, the vast majority of memory used by desktops, notebooks, and mobile devices is unbuffered non-ECC (Error Checking and Correction) DRAM. In fact, unless one is running an Intel or AMD CPU that can support ECC memory , unbuffered Non-ECC DRAM is the only choice for most users. Intel Xeons, for example, support ECC memory, while even the new Core i7’s do not. AMD has much broader ECC support at the CPU level, but many AMD motherboards do not support ECC memory features so it is not universal.

so see if the cpu or mobo supports ECC memory, otherwise go non-ECC memory ..... buffered memory is for servers mostly.. and apparently UDIMM is too
 
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