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Hynix 4GB HMT351U6CFR8C-H9 DDR3 1333MHz RAM PC3-10600U Desktop Memory 240pin ...
$15 .03
16GB 3TK83AA / 3TK83TA 288-Pin DDR4 2666MHz UDIMM RAM Replacement Memory for HP
$49 .95
Hynix 16Gb 2*8GB PC4-2133P DDR4 2133MHz 288Pin UDIMM Desktop Memory Low Density
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Micron MTA8ATF1G64HZ-2G3B1 8GB DDR4-2400 SO-DIMM
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Micron 16GB (2x8GB) MTA8ATF1G64AZ-2G6E1 DDR4-21300 UDIMM 1RX8 ...
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MemoryMasters 16GB (2 x 8GB) DDR3 1600MHz (PC3 12800) 240-pin CL11 1.35V ...
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CRUCIAL CT51264AA667.M16FC 16GB(4X4GB) 240-PIN UNBUFFERED DIMM 512X64 DDR2 ...
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MemoryMasters 8GB (2 X 4GB) DDR3 DIMM (240 pin) 1333Mhz PC3 10600 / PC3 10666 ...
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Hynix 8GB 2X4GB 2RX8 PC3-10600 DDR3-1333MHz Non-Ecc 240pin Dimm Desktop Memory
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Kingston 1GB PC2-5300 (DDR2-667) KTD-DM8400B/1G 1.8V 240-Pin Unbuffered Desktop ...
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2GB Desktop Memory Module DDR2 PC5300 667MHz PC2-5300 LOW DENSITY 240 Pin ...
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ZVVN 32GB Kit (4x 8GB) DDR3 1333 (PC3 10600) CL9 Desktop RAM PC Computer Memory ...
$115 .99
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M378T6553BZ3-CCC Samsung 512mb Ddr2 400mhz Pc2-3200 240-Pin Non-Ecc U
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MemoryMasters 6GB ( 3 x 2GB ) DDR2 DIMM (240 PIN) AM2 800Mhz PC2 6400 / PC2 6300 ...
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KINGSTON KC6844-ELG37 1GB DESKTOP DIMM DDR2 PC4200(533) UNBUF 1.8v 2RX8 240P ...
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KingSpec DDR4 RAM 8GB Memory Module 3200 MHz 288-Pin UDIMM with Heatsink for ...
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Hynix 32GB (2 x 16GB) PC4-19200 DDR4-2400 UDIMM Desktop Memory Module ...
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ZVVN 8GB DDR3 1066 (PC3 8500) 240Pin CL7 PC RAM Desktop Computer Memory Narrow ...
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Memory (Desktop Memory)
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Kingston KVR667D2N5/2G 2GB DDR2 667mhz PC2-5300 Non-ECC CL5 240-Pin Memory
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Samsung RAM Memory Module 64MB PC800 800MHz RDRAM RIMM MR16R0824BN1-CK8
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ZVVN 16GB Kit (4x 4GB) DDR3 1066 (PC3 8500) DIMM RAM Desktop Computer Memory 240Pin ...
$89 .99
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Common Questions about Desktop Memory

Introduction

For a sluggish or underperforming desktop computer, a PC memory upgrade is often an effective way to increase performance. However, choosing the right desktop memory upgrade is not always easy. If you are looking for desktop memory, the memory finder tool is an excellent resource. In the next section, NeweggBusiness answers several of the most common questions about upgrading PC memory.

Questions

Why does PC memory have MHz ratings and what do they mean?

The MHz rating for PC memory is an indication of how quickly it can transfer data. The higher the MHz rating, the quicker the memory can transfer data. However, the transfer speed is bottlenecked by the motherboard and processor. If a stick of memory is rated at 1600 MHz but the processor and motherboard are limited to 1333 MHz, the memory will operate at the slower speed.

What does latency or timing mean for PC memory?

PC memory timings are performance measurements based around four parameters. These four ratings are written as four numbers separated by dashes, such as 7-8-7-24. It is better to have lower timings, as that means less latency. You should prioritize having lower latencies over faster MHz ratings.

What does memory voltage mean?

In order for PC memory modules to achieve their rated timings, they must operate at indicated voltages. If the memory modules are ran either under or over-voltage, there will be a risk of system instability and damage to the memory. However, increasing memory voltage can also lower timings for slightly faster performance.

Are there any advantages to multi-channel memory kits?

Multi-module PC memory upgrades are often marketed as dual-channel, triple-channel, or quad-channel. Known as matched memory, they are designed to work in conjunction for slightly increased performance. However, the motherboard must support multi-channel memory for there to be any benefit.

For example, if you have a motherboard that supports dual-channel memory, utilizing a matched 8 GB (2 x 4 GB) memory upgrade kit will net slightly better performance gains than two unmatched 4 GB memory sticks.

Can I use different memory brands, capacities, and speeds in the same computer?

Yes, you can use PC memory modules from different brands, with different capacities, and different speeds in the same computer. However, there will be no multi-channel performance gains because they will not be matched sets of memory. In addition, if the PC memory modules have different speeds, they will all run at the speed of the slowest module.

Are there limitations on how much memory I can install?

Yes, there are several limiting factors on how much memory you can install into one system. Most desktop motherboards only accommodate up to four unbuffered memory modules. On top of that, the largest capacity for a single unbuffered memory module is 8 GB. So the maximum amount of memory based on hardware limitations is 64 GB for unbuffered memory.

Another limitation on the benefits of additional PC memory is the operating system. An operating system can only utilize a limited amount of memory, and any extra memory past that amount will not be recognized. For example, Windows® 8 64-bit supports a maximum of 128 GB of PC memory while Windows 8 32-bit supports up to 4 GB. Past those maximums, any extra PC memory will not be recognized.