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August 30th, 2018 09:00

Chiari77,

Below are the memory specs and configuration table for the T3500 Precision.

Memory

Type DDR3 1066 MHz & 1333 MHz (Both ECC and Non-ECC)
Memory connectors (slots) Six
Memory capacities 1 GB, 2 GB or 4GB
Minimum memory 1 GB
Maximum memory 24 GB

Memory

The Precision T3500 uses 1066 MHz and 1333Mhz DDR3 unbuffered SDRAM memory. DDR3 SDRAM or double-data-rate three synchronous dynamic random access memory is a random access memory technology. It is a part of the SDRAM family of technologies, which is one of many DRAM (dynamic random access memory) implementations, and is an evolutionary improvement over its predecessor, DDR2 SDRAM.

Its primary benefit is the ability to run its I/O bus at four times the speed of the memory cells it contains, thus enabling faster bus speeds and higher peak throughputs than earlier technologies. This is achieved at the cost of higher latency. Also, the DDR3 standard allows for chip capacities of 512 megabit to 8 gigabit, effectively enabling memory modules of maximum 16 gigabyte in size.

DDR3 memory comes with a promise of a power consumption reduction of 30% compared to current commercial DDR2 modules due to DDR3's 1.5 V supply voltage, compared to DDR2's 1.8 V or DDR's 2.5 V. This supply voltage works well with the 90 nm fabrication technology used for most DDR3 chips. Some manufacturers further propose to use "dual-gate" transistors to reduce leakage of current.

The main benefit of DDR3 comes from the higher bandwidth made possible by DDR3's 8 bit deep prefetch buffer, whereas DDR2's is 4 bits, and DDR's is 2 bits deep.

Memory Modules

Standard name Memory clock Cycle time I/O Bus clock Data transfers per second Module name Peak transfer rate
DDR3-1066 133 MHz 7.5 ns 533 MHz 1066 Million PC3-8500 8533 MB/s
DDR3-1333 166 MHz 6 ns 667 MHz 1333 Million PC3-10600 10667 MB/s

Supported Memory Configurations

Size
(GB)
DIMM
Ranks
DIMM1 DIMM2 DIMM3 DIMM4 DIMM5 DIMM6 1333MHz 1066MHz Channel
Mode
1 SR 1 GB           Image - Illustrates a check mark. Image - Illustrates a check mark. Single
2 SR 1 GB 1 GB         Image - Illustrates a check mark. Image - Illustrates a check mark. Dual
3 SR 1 GB 1 GB 1 GB       Image - Illustrates a check mark. Image - Illustrates a check mark. Tri
4 SR 1 GB 1 GB 1 GB 1 GB     Image - Illustrates a check mark. Image - Illustrates a check mark. Tri
4 DR 2 GB 2 GB         Image - Illustrates a check mark. Image - Illustrates a check mark. Dual
6 SR 1 GB 1 GB 1 GB 1 GB 1 GB 1 GB Image - Illustrates a check mark. Image - Illustrates a check mark. Tri
6 DR 2 GB 2 GB 2 GB       Image - Illustrates a check mark. Image - Illustrates a check mark. Tri
12 DR 2 GB 2 GB 2 GB 2 GB 2 GB 2 GB Image - Illustrates a check mark. Image - Illustrates a check mark. Tri
12 DR 4 GB 4 GB 4 GB       Image - Illustrates a check mark. Image - Illustrates a check mark. Tri
24 DR 4 GB 4 GB 4 GB 4 GB 4 GB 4 GB Image - Illustrates a check mark. Image - Illustrates a check mark. Tri

 

A NOTE indicates important information that helps you make better use of your computer. NOTE:
DDR3 DIMMs have 240 pins, the same number as DDR2, and are the same size, but are electrically incompatible and have a different key notch location.

 

Features

DDR3 SDRAM Components:

  • Introduction of asynchronous RESET pin
  • Support of system level flight time compensation
  • On-DIMM Mirror friendly DRAM pin out
  • Introduction of CWL (CAS Write Latency) per speed bin
  • On-die IO calibration engine
  • READ and WRITE calibration

DDR3 Modules:

  • Fly-by command/address/control bus with On-DIMM termination
  • High precision calibration resistors

Advantages compared to DDR2

  • Higher bandwidth performance increase (up to effective 1600 MHz)
  • Performance increase at low power (longer battery life in laptops)
  • Enhanced low power features
  • Improved thermal design (cooler)

Disadvantages compared to DDR2

  • Commonly higher CAS Latency
  • Slightly higher costs than equivalent DDR2 memory for now

4 Posts

August 30th, 2018 10:00

Yes i've read all the tables and tested all the configurations listed there for 4gb ones. I am not familliar with any of the different ram types. That's why i provided the model of the ram to ask you if its compatible with t3500 or not. I need a simple answer yes or no. 

3 sticks with 4gb ram-the pc wont even start and would only emit beep sound for ram error.

Tried with6 sticks the result is the same. I have the last version of BIOS so this shouldn't be an issue.

 

56 Posts

August 30th, 2018 12:00

No.  T5500 RAM spec is different than T3500.

4 Posts

August 30th, 2018 13:00

Yes i found out the problem nowhere in the specs of dell t3500 is mentioned that it is runing on **bleep** DDR3L(Light) which is the problem. I will have to throw out this garbage since there is almost impossible to find a ram for it now on a reasonable price. And the my next configuration certainly won't be dell as the support here only copy+pastes pc specs without providing any actual help. Pretty disappointed. :(

1 Rookie

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108 Posts

August 31st, 2018 17:00

Chiari77,

 

The RAM you have is "PC-3-8500R". The "R" means Registered ECC which works fine in higher end Servers and Precision T5500/T7500 Workstations, but not the T3500. You can only use non-buffered ECC -OR- Non-ECC memory in the T3500. (You can't mix them...)

You can also only use up to 4GB per DIMM in the T3500 for a maximum total of 24GB.

I regularly see non-buffered 4GB ECC sticks for really good prices at the usual online auction/Buy-It-Now site. The reason that ECC sticks can be had for such low prices is that they won't work in most basic home/office use or gamer motherboards and computers, so this limits the market. Registered ECC sticks can be had for even better prices as they are only for use in high-end systems. Most people with these workstations or servers won't trust their production systems with used and e-wasted memory. They work great in my personal systems though and saved me a ton of cash.

Good luck with your search for memory.

 

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