Q: why are these DDR2 memory still so expensive? its like $18 per GB for DDR2! I paid $43 for these in 2011 !! >.< You can get 8Gb of DDR3 for the same price, which is still almost $9 per Gb. And thats expensive for a simple stick of memory chips. Both 240 Pins... You can bet i sell my used DDR2 its full price!

This isn't really a question about the performance of the product; however, I'll give it a shot as you seem to be wanting an answer to your aggravation. Products are "worth" whatever they can be sold for and just because something is not leading edge technology doesn't mean the price will go down. This is usually the opposite case. Manufacturers turn a profit on mass producing items. Why build DDR2 when you can build DDR3 and sell it to the folks like Dell and HP Invent in bulk? There is still a small market for the DDR2 but since it is not in high demand it is manufactured in small batches, which is a more expensive process. Don't look for the price to go down, quite the contrary, it probably will go up as demand diminishes. I hope this short lesson in supply side economics was helpful.

Q: what is the Difference of 240 pin and 184 pin Memery?

both answers above are correct but don't search for memory by the pin count. find out what DDR your looking for 1st then the frequency your board is capable of then the size. laptops are different than desktops too. unless your CSI trying to reverse engineer the Matrix of an unidentified board don't worry bout pin count. always search by DDR version 1st. break it down from their. pin count don't tell you jack about memory. not all 240 pin memory works in all 240 pin dims. do you need buffered or unbuffered, what is your memory cap and frequency cap. never search by pin count because its gonna figure itself out when you choose memory type and so on.

Q: can I use this in a dell e310 system?

I wouldn't install these in the e310. It looks like the motherboard in that system would have a hard time dealing with them and could possibly crash the system. They are the right physical size/type, but timings and speed may not be suitable. If everything worked, I think the performance increase would be minimal. I'd get a new motherboard/CPU/compatible ram if you really want to increase your computer's performance, but that's essentially a new computer with an old hard drive and power supply (which might need to be upgraded anyway to accommodate the new features). Ram is tricky business and not as easily swappable as a graphics card.

Q: I am running A desktop Acer Aspire AX1300-U11801A Running Windows 7 Home Premioum Cannot find the desktop on your mem search. One slot is running DDR2 (PC2-6400 MB) 2048MB the other slot2 is running DDR2 (PC2-6400 1024MB. The computer max is 4096 MB. Want to in crease to max. Any Suggestions?

I am not familiar with that Acer system. If the system MAX is 4GB and you have one slot with a 2GB dimm installed and the other has 1GB dimm installed, you can replace the 1GB with a 2GB, just get the same spec (PC2-6400). However, If your operating system is 32 bit Windows 7 (look in Control Panel, System Info to verify) it will not use more than 3GB total and an upgrade is not recommended. If 64 Bit, then windows can use it.

Q: Will 4 of these sticks work in my Asus P5B Deluxe? I've seen people using 4 or 6 GB but i wasn't sure about 8. Newegg Memory finder doesn't list these and the QVL is old, I'm pretty sure with bios updates that the MB should support 8 GB of ram.

On numerous older DDR2 motherboards, running 4 sticks of memory might cause the motherboard to down-clock the memory speed to something less than 800 MHz. I'm sorry that I can't be of more specific help on that particular model.

Q: Can I add this memory to my DELL Optiplex 755 with 2 X 1GB PC2 6500 800 sticks to make my total memory 6 GB?

It depends on a few things. 1. Do you have more slots to fit the new memory? If not, then remove the old memory and put the new one in. 2. Is the memory compatible with your motherboard. 3. If you do have extra slots to add the new memory make sure the old and new memory operate at the same speed. I have seen cases where new memory is added and the machine will have issues because there are new and old memory modules are not synced up to each other since they operate at different speeds.

Q: Does this memory module have ECC data integrity check?

I LOOKED THIS INFO UP ON G.SKILL'S WEBSITE AND IT STATES AS FOLLOWS: Series Performance Memory Type DDR2 Capacity 4GB (2GBx2) Multi-Channel Kit Dual Channel Kit Tested Speed 800MHz Tested Latency 5-5-5-15-2N Tested Voltage 1.80v~1.90v Registered/Unbuffered Unbuffered Error Checking Non-ECC SPD Speed 800MHz SPD Voltage 1.80v Fan lncluded No height 32 mm / 1.26 inch Warranty Lifetime IT SAYS THAT THE MEMORY MODELS ARE NON-ECC. I READ ALSO ON THE WEB THAT MEMORY WITH ECC DATA INTEGRITY CHECK IS FOR SERVERS FOR SCIENTIFIC AND FOR FINANCIAL INSTITUTIONS, HOPE THIS HELPED.

Q: I am replacing this for a corsair ddr2 800 cas latency 4 (model CM2X2048-6400C4DHX), will this work?

Yes, that's what I did and it works @ CAS 4-4-4-12 and with lower voltages (1.82 vs. 2.1V) But will get hotter in a smaller case like Shuttle xPC or HTPC. Not very efficient heat spreader when 4 sticks are used. So I replaced it with G.SKILL PI Black 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model F2-6400CL4D-4GBPI-B

Question 1

Will this work on a Gigabyte EP45-UD3R motherboard?

It has four slots for DDR2 and is supposed to support up to 16GB; however, I remember hearing something about there being issues there.

Will I be able to run 4 of these sticks on this motherboard for 8GB total? That is my question.

Accepted Answer

Read this before you buy RAM  !!!!!!!!

RAM  maximums for current  Windows OSs include:

Windows 8 (32 bit)

Windows 8 Enterprise: 4 GB
    Windows 8 Professional: 4 GB
    Windows 8 Home: 4 GB

Windows 7 (32 bit)

Ultimate: 4 GB
    Enterprise: 4 GB
    Business: 4 GB
    Home Premium: 4 GB
    Home Basic: 4 GB
    Starter: 2 GB

Windows Vista (32 bit)

Ultimate: 4 GB
    Enterprise: 4 GB
    Business: 4 GB
    Home Premium: 4 GB
    Home Basic: 4 GB
    Starter: 1 GB

Windows XP (32 bit)

Professional: 4 GB
    Home: 4 GB
    Starter Edition: 512 MB

Windows Server 2003 (32 bit)

Datacenter SP2: 128 GB
    Enterprise SP2: 64 GB
    Standard SP1: 4 GB*
    Datacenter R2: 128 GB
    Enterprise R2: 64 GB
    Standard R2: 4 GB*
    Web Edition: 4 GB*
    Small Business Edition: 4 GB*

Windows Server 2008 (32 bit)

Datacenter: 64 GB
    Enterprise: 64 GB
    Standard: 4 GB
    Web Server: 4 GB

Windows 8 (64 bit)

Enterprise: 512 GB
    Professional: 512 GB
    Home: 128 GB

Windows 7 (64 bit)

Windows 7 Ultimate: 192 GB
    Windows 7 Enterprise: 192 GB
    Windows 7 Professional: 192 GB
    Windows 7 Home Premium: 16 GB
    Windows 7 Home Basic: 8 GB
    Windows 7 Starter: N/A

Windows Vista (64 bit)

Ultimate: 128 GB
    Enterprise: 128 GB
    Business: 128 GB
    Home Premium: 16 GB
    Home Basic: 8 GB

Windows XP (64 bit)

Professional: 128 GB
    Windows Server 2003 (64 bit)
    Datacenter SP2: 2 TB
    Enterprise SP2: 2 TB
    Standard SP1: 32 GB
    Datacenter R2: 1 TB
    Enterprise R2: 1 TB
    Standard R2: 32 GB
    Small Business Edition: 128 GB

Windows Server 2008 (64 bit)

Datacenter: 2 TB
    Enterprise: 2 TB
    Standard: 32 GB
    Web Server: 32 GB

Windows Server 2012 (64 bit)

Datacenter: 4 TB
    Standard: 4 TB
    Essentials: 64 GB
    Foundation: 32 GB
    Storage Server 2012 Workgroup: 32 GB
    Storage Server 2012 Standard: 4 TB
    Hyper-V Server 2012: 4 TB

Question 2

Have 2005 vintage Dell XPS 400 Pentium with Pentium 4 Processor 540, 3.2GHz with four memory card slots; came with 2 Dual Channel DDR2 533MHz DIMM cards (1GB). My installer says can put 2 matching 2GB cards in.  See any problem using this item ?

Accepted Answer

Maximum memory XPS 400 can support up to 4 GB. You can install 4(2gb) for a total of 8gb but your computer is only going to recongize 4gb, waste of money for memory your system can't use.

Question 3

why are these DDR2 memory still so expensive? its like $18 per GB for DDR2! I paid $43 for these in 2011 !! >.<
You can get 8Gb of DDR3 for the same price, which is still almost $9 per Gb. And thats expensive for a simple stick of memory chips. Both 240 Pins... You can bet i sell my used DDR2 its full price!

Accepted Answer

This isn't really a question about the performance of the product; however, I'll give it a shot as you seem to be wanting an answer to your aggravation.

Products are "worth" whatever they can be sold for and just because something is not leading edge technology doesn't mean the price will go down.  This is usually the opposite case.  Manufacturers turn a profit on mass producing items.  Why build DDR2 when you can build DDR3 and sell it to the folks like Dell and HP Invent in bulk?

There is still a small market for the DDR2 but since it is not in high demand it is manufactured in small batches, which is a more expensive process.

Don't look for the price to go down, quite the contrary, it probably will go up as demand diminishes.  I hope this short lesson in supply side economics was helpful.

Question 4

what is the Difference of 240 pin and 184 pin Memery?

Accepted Answer

both answers above are correct but don't search for memory by the pin count. find out what DDR your looking for 1st then the frequency your board is capable of then the size. laptops are different than desktops too. unless your CSI trying to reverse engineer the Matrix of an unidentified board don't worry bout pin count. always search by DDR version 1st. break it down from their. pin count don't tell you jack about memory. not all 240 pin memory works in all 240 pin dims. do you need buffered or unbuffered, what is your memory cap and frequency cap. never search by pin count because its gonna figure itself out when you choose memory type and so on.

Question 5

can I use this in  a dell e310 system?

Accepted Answer

I wouldn't install these in the e310. It looks like the motherboard in that system would have a hard time dealing with them and could possibly crash the system. They are the right physical size/type, but timings and speed may not be suitable. If everything worked, I think the performance increase would be minimal. I'd get a new motherboard/CPU/compatible ram if you really want to increase your computer's performance, but that's essentially a new computer with an old hard drive and power supply (which might need to be upgraded anyway to accommodate the new features). Ram is tricky business and not as easily swappable as a graphics card.

Question 6

I am running A desktop Acer Aspire AX1300-U11801A Running Windows 7 Home Premioum Cannot find the desktop on your mem search. One slot is running DDR2 (PC2-6400 MB) 2048MB the other slot2 is running DDR2 (PC2-6400 1024MB. The computer max is 4096 MB. Want to in crease to max. Any Suggestions?

Accepted Answer

I am not familiar with that Acer system.  If the system MAX is 4GB and you have one slot with a 2GB dimm installed and the other has 1GB dimm installed, you can replace the 1GB with a 2GB, just get the same spec (PC2-6400).  However, If your operating system is 32 bit Windows 7 (look in Control Panel, System Info to verify)  it will not use more than 3GB total and an upgrade is not recommended.  If 64 Bit, then windows can use it.

Question 7

Will 4 of these sticks work in my Asus P5B Deluxe?  I've seen people using 4 or 6 GB but i wasn't sure about 8.  Newegg Memory finder doesn't list these and the QVL is old, I'm pretty sure with bios updates that the MB should support 8 GB of ram.

Accepted Answer

On numerous older DDR2 motherboards, running 4 sticks of memory might cause the motherboard to down-clock the memory speed to something less than 800 MHz.

I'm sorry that I can't be of more specific help on that particular model.

Question 8

Can I add this memory to my DELL Optiplex 755 with 2 X 1GB PC2 6500 800 sticks to make my total memory 6 GB?

Accepted Answer

It depends on a few things.

1.  Do you have more slots to fit the new memory?  If not, then remove the old memory and put the new one in.

2.  Is the memory compatible with your motherboard.

3.  If you do have extra slots to add the new memory make sure the old and new memory operate at the same speed.  I have seen cases where new memory is added and the machine will have issues because there are new and old memory modules are not synced up to each other since they operate at different speeds.

Question 9

Does this memory module have ECC data integrity check?

Accepted Answer

I LOOKED THIS INFO UP ON G.SKILL'S WEBSITE AND IT STATES AS FOLLOWS: 
 	Series 	Performance 	
	Memory Type 	DDR2 	
	Capacity 	4GB (2GBx2) 	
	Multi-Channel Kit 	Dual Channel Kit 	
	Tested Speed 	800MHz 	
	Tested Latency 	5-5-5-15-2N 	
	Tested Voltage 	1.80v~1.90v 	
	Registered/Unbuffered 	Unbuffered 	
	Error Checking  Non-ECC 	
	SPD Speed 	800MHz 	
	SPD Voltage 	1.80v 	
	Fan lncluded 	No 	
	height 	32 mm / 1.26 inch 	
	Warranty 	Lifetime 	
	
IT SAYS THAT THE MEMORY MODELS ARE NON-ECC. I READ ALSO ON THE WEB THAT MEMORY WITH ECC DATA INTEGRITY CHECK IS FOR SERVERS FOR SCIENTIFIC AND FOR FINANCIAL INSTITUTIONS, HOPE THIS HELPED.

Question 10

I am replacing this for a corsair ddr2 800 cas latency 4 (model  CM2X2048-6400C4DHX), will this work?

Accepted Answer

Yes, that's what I did and it works @ CAS 4-4-4-12 and with lower voltages (1.82 vs. 2.1V)
But will get hotter in a smaller case like Shuttle xPC or HTPC.
Not very efficient heat spreader when 4 sticks are used.
So I replaced it with G.SKILL PI Black 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model F2-6400CL4D-4GBPI-B

Questions & Answers