Category: RAM

AMD B350 & X370 MEMORY SPEEDS

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Some overclockers are running into problems with the AMD Ryzen AM4 platform. Part of the problem is that memory speeds are faster than JEDEC can update the standard. Intel has developed the XMP profile to support faster speeds and now with DDR4 they have XMP2. AMD supports XMP2 however the UEFI-BIOS may have to be …

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MIGRATING TO DDR4

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Lots of DIY enthusiasts are still using DDR3 based rigs. These are plenty powerful to handle contemporary games. Intel changes the CPU socket every 2 years while AMD only changes it every 5 years with the memory cycle. CPU motherboard memory DDR4 speeds are faster than DDR3 and recent tests show it can reach 68 …

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DDR5 BY 2020

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While AMD’s Ryzen is sill a few months away, the JEDEC is now close to finishing the DDR5 standard which is expected to be done by year’s end. DDR5 will increase the maximum capacity. At present consumer DDR4 is being mass produced at 4GB and 8GB capacities with 16GB at the high end. DDR5 will …

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COUNTERFEIT DDR3 MEMORY

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We have numerous DDR3 sticks in our trays. We have trays for DDR2 as well but we have not experienced nearly the problems that DDR3 has presented. The DDR3 on this page was purchased largely from eBay. We have noticed that stores are loaded with vast amounts of problematic memory. The serial presence detect (SPD) …

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INTEL Z170 MOTHERBOARDS

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The Intel Z170 motherboard and processors make up the Skylake series. While Skylake is designed for DDR4, Intel mentioned that DDR3 is an available option. Gigabyte has the widest range of models for the Z170 chipset and socket LGA 1151. THE SKYLAKE CPU Intel initially offered 2 CPU choices with the i5-6600K and the i7-6700K. …

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DDR4 MEMORY

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The system memory on a typical gaming machine currently ranges from about 8GB to 64GB depending on the age of the machine and the budget. New machines with DDR4 now start at the low end with 8GB of memory on desktop and notebook machines. SDRAM, DDR, DDR2, DDR3 and DDR4 are all 5.25 inches long. …

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MICRON 8KTF25664AZ-1G6M1

8KTF25664AZ-1G6M1

We have a dual channel set of 2x2048MB which is typical for memory. The 8KTF25664AZ-1G6M1 is made at 30nm so it supports the DDR3L-1600 1.35V operation. DDR3L works fine with 1.5V systems. The BIOS can reduce the voltage as it configures the memory. See the RAM Timing page for more information on how RAM timings …

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KINGSTON 9905471-004.A00LF

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The Kingston 9905471-004.A00LF memory supports all JEDEC speeds up to PC3-10700 DDR3-1066. The Kingston 9905471-004.A00LF memory is low profile which is helpful for those with larger CPU coolers. This memory is 2/3 as tall as most memory sticks. See the RAM Timing page for more information on how RAM timings work. AMD AM2 and Intel Sandy and …

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G.SKILL F3-17000CL11-4GBXL

G.SKILL F3-17000CL11-4GBXL

The G.SKILL F3-17000CL11-4GBXL memory supports all JEDEC speeds up to PC3-17000 DDR3-2133 with the XMP extensions The G.Skill comes as a pair of 4096MB DIMMs.. Since this RAM was manufactured the JEDEC standard was revised to allow for speeds up to DDR3-2133. DDR3 remained on the market longer than expected. See the RAM Timing page …

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NANYA NT2GC64B88B0NF-CG

NANYA NT2GC64B88B0NF-CG

The Nanya NT2GC64B88B0NF-CG memory supports all JEDEC speeds up to PC3-10700 DDR3-1066. The Nanya NT2GC64B88B0NF-CG is single sided which uses less power than double sided memory sticks. This is due to the higher density RAM chips used by Nanya. See the RAM Timing page for more information on how RAM timings work. AMD AM2 and Intel …

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CRUCIAL CT51264AC800

Crucial CT51264AC800

The Crucial CT51264AC800 is a SO-DIMM DDR2-800 Memory for laptop computers. model CT51264AC800 SO-DIMM DDR2-800 PC2-6400 1.8V Unbuffered 512Mb x64 CL 6 JEDEC This memory is JEDEC compatible but check your machine hardware to be sure it can recognize 4GB memory modules. Many machines are limited to 2GB module to to BIOS limitations. Check for a BIOS …

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ELPIDA EBJ21UE8BDF0-AE-F

EBJ21UE8BDF0-AE-F

The ELPIDA EBJ21UE8BDF0-AE-F DDR3-1066 has support for DDR3-1066F and DDR3-1066G timings. With our Asus M5A99FX PRO R2.0 we are able to operate the Elpida at DDR3-1333 speeds which shows that the quality of this memory was well above the standard. Overclocking this memory was stable to DDR3-1400 speeds. The RAM is configured as 1 gigabit …

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ELPIDA 16JTF25664AZ-1G4F1

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We have a single stick of Elpida DDR3-1333 which we have been using for testing motherboards. Sticker on the DIMM bears MT16JTF25664AZ-1G4F1 which is a Micron part number. This RAM is old enough to be very early in the DDR3 period. See the RAM Timing page for more information on how RAM timings work. AMD …

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COUNTERFEIT COMPUTER HARDWARE

We have noticed that counterfeit computer components are becoming a growing problem. We first encountered this problem with the AK 680 power supply. The Echostar 680W is even worse. Both use oem power supply boards and labeled their respective products at double the actual true capacity or more. Vast  numbers of these counterfeit power supplies …

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DDR3 CPU-Z TIMING GALLERY

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This page has series of CPUID timings images for known good memory. Careful attention to the markings and SPD are needed to identify memory and to ferret out any counterfeits. NANYA G.SKILL ELPIDA MICRON DDR-3 memory has been widely counterfeited by unknown parties and sold widely in eBay and Alibaba.