i just bought a refurbished dell optiplex 7010 with 8GB of ram but its to small for my neads with dula monitor setup. after a long fight to fix SSD support with second HDD i went and bought Crucial Ballistix Sport 16GB kit and its strange Memtest is finishing whole test but internal test is finding some problems *(different errors with one or two ram installed) and Windows 10 is unstable ... what is the problem is there a list of supported memory types ? is this ram to fast for this PC i will try a slower 16GB kit form Goodram mabe it will work ..
my bios is A21 with loaded default setup .. big thx for help
Below are the memory specs and memory information for the Optiplex 7010.
|Type||DDR3 synch dram non-ecc memory|
|Memory connectors||four (MT, DT, SFF), two (USFF)|
|Memory capacities||2gb, 4gb, 6gb and 8gb|
32gb on MT, DT, SFF
the Optiplex 7010 system supports up to 16 gb of memory in the mini-tower (MT), desktop (DT), small form factor (SFF) and ultra-small form factor (USFF) chassis with 64-bit operating system. the memory speed supported is 1333/1600mhz ddr3 memory.
however, when system is installed with Intel® core™ g630, 2.70ghz, 3m, Vt-x, 65w processor, the maximum supported memory speed is 1066mhz regardless of whether the 1333/1600mhz ram is plugged in.
however, 32-bit operating systems can only use maximum 4gb memory address space. certain components within the computer require address space in the 4gb range, any address space reserved for these components cannot be used by computer memory the amount of memory available to the operating system is less than 4gb.
memory modules should be installed in pairs of matched memory size, speed, and technology. if the memory modules are not installed in matched pairs, the computer will continue to operate, but with a slight reduction in performance.
the total amount of available memory will be less than 4gb. the amount less depends on the actual system configuration. to fully utilize 4gb or more of memory requires a 64-bit enabled processor and 64-bit operating system
memory slots on system boards that support ddr3 are keyed to onlY accept ddr3 modules. ddr2 will not fit into a ddr3 slot and ddr3 will not fit into a ddr2 slot.
DDR memory can run in dual-channel mode, which allows the system to have twice the memory bandwidth using the same memory technology.
to achieve dual-channel performance, the total memory in each channel must be the same. if the channels do not match or if the system has only one dimm installed, the system memory operates in single-channel mode or in dual channel asymmetrical mode. the system works normally in single-channel mode, but the user loses the benefit of increased memory throughput.
dual-channel mode is always present when both memory channels are populated. however, for optimum dual-channel performance, the size of the modules must match.
|channel a||channel b||BIOS says||performance|
|dimm||no dimm||single channel||single channel|
|dimm||same as channel a||dual channel interleaved||dual channel interleaved|
|dimm||same as channel a except speed||dual channel interleaved
(in lowest dimm speed)
|dual channel interleaved
(in lowest dimm speed)
|dimm||same as channel a except density||dual channel interleaved||dual channel interleaved|
|dimm||same as channel a except size||dual channel asymmetric||single channel|
|no dimm||dimm||single channel||single channel|
basically, when both dimm connectors are populated, the system has optimum dual-channel performance unless channels a and b have different amounts of memory.
some confusion has been created due to the difference in the actual listings for speed ("mhz") and the way memory is described from a sales standpoint ("pc XXXXXX"). the listings below should resolve any confusion.
|pc3-6400 = 800 mhz|
|pc3-8500 = 1066 mhz|
|pc3-10666 = 1333 mhz|
|pc3-12800 = 1600 mhz|
the Windows® Xp release as well as 32-bit versions of Windows Vista can only use a maximum of 4 gb of address space. however, the amount of memory available to the operating system is less than 4 gb. certain components within the computer require memory address space in the 4 gb range. any memory address space reserved for these components cannot be used by the operating system
this is a limitation of a 32-bit architecture: the system can only address 4 gb of allocated memory. allocated memory is made up of physical ram and any i/o space needed by devices. normally this is not a problem, but when a system has 4 gb of physical memory, the memory addresses needed to map ram overlap the space needed for the i/o devices. in this case the need for i/o space takes precedence, and the amount of ram visible to the operating system is limited to 4 gb minus the i/o allocation.
the easiest way to check for memory problems is to run the Dell psa+ diagnostics which include a very robust memory test. if the system does not have psa+ diagnostics or they are not available, then the mpmemory test (included with the latest version of Dell 32-bit diagnostics) is the best testing method.
for intermittent problems, try swapping memory modules with another system and see if the problems continue. if no swap is available, then remove one memory module at a time to see if the problems continue. if you can isolate the problem to one module, then try testing the system repeatedly (using one of the tests mentioned above) with only the suspected problem memory module installed.