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PNY Optima 4GB (2x2 GB) DDR2 800 MHz PC2-6400 Desktop DIMM Memory Module Dual Channel Kit - MD4096KD2-800

by PNY
328 customer reviews
| 14 answered questions

Available from these sellers.
4 GB
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  • Memory capacity upgrade provides improved system performance and responsiveness
  • Deliver all the productivity your PC has to offer with PNY Memory
  • Compatible with PC2-6400 (800 MHz), PC2-5300 (667 MHz), and PC2-4200 (533 MHz) systems
  • Helps prepare your PC for running Windows Vista
  • Easy installation, Free 24-hour Technical Support, and Lifetime Warranty!
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Technical Details

Capacity: 4 GB
  • Model Number: MD4096KD2-800
  • Item Package Quantity: 1
  • RAM Memory Technology: DDR2
  • Form Factor: Desktop
  • Memory Storage Capacity: 4 GB
See more technical details

Product Description

Capacity: 4 GB

PNY - Make Life Simple

Upgrade your PC Memory with PNY. Experience improved performance.

Today’s software applications make greater demands on your system’s memory. Take full advantage of your software’s productivity enhancements by upgrading your memory and optimizing the efficiency of your desktop PC, with a PNY memory upgrade. Let’s take a look at why you may need a memory upgrade, and how you can maximize your PC.

Potential Reasons for Needing More Memory

You Just Upgraded Your Operating System: One common reason for requiring additional computer RAM memory is operating system upgrades. For example, if you just upgraded your operating system you will find that Windows 8th or 7th requires more RAM than previous models. As operating systems become more sophisticated they need more memory to do their job. This will take away from the amount of computer RAM memory that is available to your other computer applications. Whenever you upgrade your operating system, it’s a good time to assess your computer’s RAM memory needs.

You’re Getting Your Game On: From the casual gamer needing a simple upgrade or storage solution, to the advanced gamer desiring all the dynamic visual effects of the latest DirectX 10 and DirectX 11 games. With today’s advanced visualizations on many popular PC games you may need to increase the RAM memory on your PC in order to maximize your gaming experience. As the gaming world evolves the more advanced games will put an increased memory demand on your system.

You Upgraded Your Business Software: Upgrades of common business software are another factor that can create a need for more RAM memory. Just as with operating systems, business software gets more complex with each new version/update, and invariably it seems like the computer RAM memory needs an increase. If you’re installing new software on your PC, closely look at its memory requirements, and see if you need to upgrade.

You’re Adding a New Graphics Card: If you are installing a new graphics card in your computer system, you may also need to add additional RAM to your computer. Graphics cards depend heavily on your computer’s main RAM, and if there’s not sufficient memory available the video card is going to have poor performance. To play it safe, your best bet is to reference the manufacturer’s specifications on your new graphics card, and see if you ultimately do need to purchase additional memory.

General Use Upgrade: If you realize that things are just taking too long to complete, or you can actually hear your computer “churning” while it is working on large tasks, this is a sign that it could benefit from more computer memory, and you should upgrade it as soon as possible to improve your computer’s general performance.

PNY Memory

The PNY Advantage

PNY was founded on the memory business in 1985. With almost 30 years of business experience we have been serving consumers, B2Bs, and OEMs worldwide.

Product Details

Capacity: 4 GB
  • Product Dimensions: 5 x 6.8 x 0.5 inches ; 1.6 ounces
  • Shipping Weight: 2.4 ounces
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B001ISJ964
  • Item model number: MD4096KD2-800
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (328 customer reviews)
  • Amazon Best Sellers Rank:
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at October 15, 2008

Customer Reviews

Most Helpful Customer Reviews

122 of 125 people found the following review helpful By Jeff Rader on December 30, 2009
Size: 4 GB
I bought this to upgrade my computer from 2 GB to 4. It worked as expected. I use this computer with 64 bit Linux (primary OS) and Windows 7. No problems.

Please do research before you buy. Another users wrote a negative review of this product because he didn't know that his motherboard was not compatible with DDR2 RAM. This is not PNY's fault. The reason this is called "PNY Optima MD4096KD2-800 4GB 2x2GB Dual Channel Kit DDR2 800 MHz CL 5-5-5-15 PC2-6400 Desktop DIMM Memory Module" rather than simply "4GB (2x2GB) computer memory" is because only certain types of RAM will work with your motherboard. The important things to look at are the size, number of pins, MHz, and DDR. If you built your computer then this probably won't be a problem, but if someone built it for you, or you are trying to build one now, take a look at the manual that came with your motherboard or the website of the manufacturer. They will tell you which type of RAM (DDR2, DDR3, etc), how many MHz, how many pins, and how much RAM your motherboard is capable of handling (mine is now maxed out at 4GB). If you bought an HP or Dell and are looking to increase RAM, visit their websites, look at your manual, or just type the name of the computer + memory upgrade into Google (example - "Dell Dimension 3000 Memory Upgrade").

Another thing to consider when you upgrade is your power supply. If you put in your new RAM and the computer no longer starts (maybe the fan spins but nothing shows up on your screen), don't assume new RAM broke your computer. You need a larger power supply. More RAM needs more power. When I upgraded I had to swap out my 350 watt power supply for a 400 watt. I'm about to add a video card and blue ray player so I ordered a 550 watt PSU along with them. For a decent inexpensive power supply, I like Diablotek.
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8 of 9 people found the following review helpful By P. Huff on May 14, 2009
Size: 4 GB Verified Purchase
Put 'em in, turned it on, booted up, work great. Athlon x2, Windows 7 x64, fast, multitasking, a great value!
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3 of 3 people found the following review helpful By Primevil60 on August 13, 2012
Size: 4 GB Verified Purchase
I have been using this for about a week now and have had absolutely no problems. It even was compatible with the slower 566 (I think) sticks that I used these to replace. No crashes, booted up without any problems. I'm very impressed. The only thing is it did not increase the windows experience rating score...still at 5.5. That surprised me because this should be faster RAM. I am no expert, but I expected a minimal increase in that score. I actually bought this RAM to play Max Payne 3, since the 2 gigs I had just wasn't cutting it so I went to 4 gigs. Max Payne runs flawlessly now. I'm not sure if that is attributed to more RAM or faster RAM or both, but it definitely did it's job!
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2 of 2 people found the following review helpful By Rick PW on June 13, 2012
Size: 4 GB Verified Purchase
I just got and plug this 2 X 2GB kit from PNY for a Dell GX620. The system didn't boot up just using these 2 DIMM across a single dual channel configuration, just the typical alarm beeps. So I tried just one of the two and worked, that worked in every slot consistently with flying colors, no problem. The other one didn't work consistently in any slot, so the conclusion is that one of the SIMM may be bad. So just for the heck of it, before returning to Amazon, I took a quick look with a 10X magnifier to inspect if physically looked ok. Surprise! The bad SIMM had cracked and missing components. One of the filter 0603 caps was cracked, and then there was a missing a resistor array; these last are typically used to damp high speed bus signals at the origin of the traces. If any of these is broken or missing there is no way the DIMM can work. I took a picture with my Windows Phone, that I was shocked how relatively good can keep focus in a macro picture like this (click "View and share related images" at the top of this product page).

Making a initial guess I can think that this kind of damage could be created when using the horrible plastic package they have. This package (see picture at the top from Fernando) uses only two very thin strips to create three separate sections. There they can place up to three SIMMs. These strips are not enough and any shacking in transportation will allow the SIMMs to move and bang each other, and when I was packing back mine to send back, I noticed how easily this can happen. In fact one of the SIMM acts like a knife over the other hitting the tiny SMT parts of the other, especially on the edges that is where mine had the damage. This is also consistent with other feedbacks of people that had a SIMM broken in this kit of two.
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2 of 2 people found the following review helpful By D. WALTER on January 4, 2012
Size: 4 GB Verified Purchase
I received this product this afternoon after ordering it last night with next day shipping. The product came brand new, as pictured on the listing, and there were no issues with the packaging, or install. Took a whole 3 minutes to put this in my computer. Saying that, if you don't know your way around the inside of a computer, do NOT try to put this in yourself. Snapping pieces off, and forcing pieces into places they shouldn't go can kill your computer before you even have the chance to upgrade it. This was a major upgrade for my home desktop, and it came through great. I'm running a Dell Dimension 5100 that my wife bought almost 6 years ago. I've made upgrades over time to keep this thing running in the modern day, and this is another upgrade that will add years to the life of this PC. I added this RAM to the existing 2gb, and now the PC recognizes 6gb of RAM, and it jumped my Windows Experience Rating almost 3 points. I've only been using the PC with the addition RAM for about 10 minutes, and I can already see a HUGE difference in performance all around. Everything loads faster, and the PC seems to be running alot more smoothly. Glad I made this upgrade, and I would definately recommend this product to anyone looking for a decent budget upgrade for their aging PC.
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