If you install high-density memory on a motherboard that is not compatible with the module, it will not work or only recognize a portion of the memory. So no 2 x 8 Gig is not likely to work.
Ranks are sub-units of a memory module which share the same address and data buses and are selected via CS (Chip Select) in low level addressing. For example, take a memory module with 8 chips on each side, with each chip having 8 bit wide data bus, then that module would have one rank for each side for a total of 2 ranks, if we define a rank to be 64 bits wide. That's why High density is not sufficent for some chipsets because the BUS is 128 bits wide. This is also why only 1/2 of each dimm is working when 4 are used. You cannot use RANK 4 ram due to the width of the bus.
speedstep
9 Legend
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47K Posts
1
August 10th, 2016 10:00
I see no issues with the 750TI OC if you have at least the DELL 460W power supply.
There is no such thing as DDR3 665mhz. DDR2 667 (5300)
DDR3 1066 (DDR3 8500) DDR3 1333 (10,600) DDR3 1600 (12,800)
DDR3 1600 is the recommended speed
4GB DDR3-1600 PC3-12800 Non ECC Unbuffered 240 Pin CL=11 Memory 1.35V • 512Meg x 64 •
2 Rank Max low density intel compatible.
Banjo1764
3 Posts
0
August 10th, 2016 23:00
The 665 Mhz came from spec readout program, but guess it is actually 1333, i.e. 665 x 2 as it is dual channel ?
Do in need to use 4 x 4Gb memory cards, or can the XPS 8300 handle 2 x 8 Gb ?
Dan-H
4 Operator
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1.2K Posts
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August 11th, 2016 01:00
The memory is DDR3 1333 Mhz. DDR stands for Dual Data Rate so you need to double the memory frequency.
It is also dual channel, but that doesn't factor into the speed.
On the memory upgrade, if you have windows 7 home the OS limits to 16GB.
msdn.microsoft.com/.../aa366778(v=vs.85).aspx
so to answer your question on memory, unless you have Win7 pro or Win 8 /8.1 or Win10 you are stuck at 16GB.
as far as graphics cards for the 8300, search the forum and there are many success stories.
speedstep
9 Legend
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47K Posts
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August 11th, 2016 06:00
2 X 8GB would be Quad Rank Memory and this would mean 32 gigs is max.
There are Ram Limitations based not only on the chipset but on the CPU as well.
Some Core I5 I7 chips only support 8 gigs or 16 gigs or 24 gigs.
Recommendation is based on this
https://www.amazon.com/4GBx2-Upgrade-System-PC3-12800-NON-ECC/dp/B01619FUCG
If you install high-density memory on a motherboard that is not compatible with the module, it will not work or only recognize a portion of the memory. So no 2 x 8 Gig is not likely to work.
Ranks are sub-units of a memory module which share the same address and data buses and are selected via CS (Chip Select) in low level addressing. For example, take a memory module with 8 chips on each side, with each chip having 8 bit wide data bus, then that module would have one rank for each side for a total of 2 ranks, if we define a rank to be 64 bits wide. That's why High density is not sufficent for some chipsets because the BUS is 128 bits wide. This is also why only 1/2 of each dimm is working when 4 are used. You cannot use RANK 4 ram due to the width of the bus.
Banjo1764
3 Posts
0
August 12th, 2016 01:00
Thanks for the advice, all good