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chris_mosher
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April 2nd, 2009 13:00
Question about memory for Dell Precision T3500
Does the T3500 use ECC Registered or Unregistered memory? Compatible with both?
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Posted April 2nd, 2009 13:00
chris_mosher
The Precision T3500 can use both EEC and Non-ECC memory.
See HERE <ADMIN NOTE: Broken link has been removed from this post by Dell>
Bev.
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Posted April 2nd, 2009 13:00
Wow, am I being confusing here?
I know it supports Non-ECC memory. The specifications say it supports ECC memory, but my question is, does it support ECC Registered, ECC Unregistered, or both?
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Posted April 2nd, 2009 13:00
Removed invalid URL
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Posted April 2nd, 2009 13:00
Thanks for the link, but doesn't answer my question. I know it supports ECC memory, but unless I am mistaken, ECC memory can be Registered or Unregistered.
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Posted April 2nd, 2009 14:00
http://en.wikipedia.org/wiki/Registered_memory
Registered (also informally called buffered) memory modules have a register between the DRAM modules and the system's memory controller. They place less electrical load on the memory controller and allow single systems to remain stable with more memory modules than they would have otherwise. Registered memory is more expensive because of the lower volume and the additional components, so it is usually found only in applications where the need for scalability and stability outweighs the need for a low price (servers, for example). Although most server-grade memory modules are both ECC and registered, there are both registered non-ECC modules and non-registered ECC modules.
Also, looking at the specifications for the T3400, it also supports ECC and non-ECC, but it does not support Registered memory...
http://support.dell.com/support/edocs/systems/wst3400/en/ug/ug_en.pdf
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Posted April 2nd, 2009 14:00
chris_mosher
ECC is Registered memory and Non-ECC is Unregistered memory and the T3500 supports both.
Bev.
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Posted April 2nd, 2009 14:00
Are you sure about that?
Why does this say it is ECC Unregistered...
http://www.ewiz.com/detail.php?name=D22GE667K
- Mfr Part Number: KVR667D2E5/2G
- Type: DDR2
- Capacity: 2 GB
- Speed: PC5400 667MHz
- Size & Bit: 256M x 72
- Pins: 240pin
- ECC: Yes
- Registered: No
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Posted June 17th, 2009 20:00
So there are still no answers to this question?
We know that the T3400 does not support Registered memory - what about the T3500? Anyone?
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Posted June 18th, 2009 11:00
The training page only says this - The Precision T3500 uses 1066 MHz and 1333Mhz DDR3 unbuffered SDRAM memory.
DDR3-1066 133 MHz 7.5ns 533 MHz PC3-8500 8533 MB/s
DDR3-1333 166 MHz 6ns 667 MHz PC3-10600 10667 MB/s
DELL-Chris M (old account)
#IWork4Dell
sysanalyst1
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Posted July 9th, 2013 06:00
Okay, the answer here is pretty straight forward. First off, ECC and Registered/Buffered have no relationship with each other beyond both being memory technologies. ECC or Error Correcting Code memory can recover from single bit memory errors by rebuilding failed "bits" using the extra parity chip.
Buffered memory, also known as "registered" memory has additional "buffers" or "registers" that actually control memory "flow" acting as sort of a traffic cop between your memory and processor. This is so your memory controller (which must support registered/buffered memory) can support larger quantities of memory, albeit the memory access will be marginally slower.
With that said, the T3500 while it does support ECC technology, IT DOES NOT support buffered/registered memory technology.
Dell did offer a T5500 system that supported registered/buffered and ECC technologies, but does not support standard non-registered/unbuffered non-ECC DIMMS.
As a side note; I've installed 4GB registered/buffered DIMMs into a T3500 with no success; the memory controller beeps upon power up.Switching back to unregistered/unbuffered DIMMs results in successful operation.