Question about Mach Speed (S755) Motherboard

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Memory confusion different readings

I have the mach speed P4M800CE mb. I recently upgraded my memory from 512mb to 2gb. I installed ocz Platinum 2gb (2x1gb) 184 Pin ddr sdram ddr400 (pc 3200) Dual channel memory.

When I check the memory in System Information - It lists Total Physical Memory at 512 mb and Available Physical Memory at 1.43 gb. How can I have more Available Physical Memory than I have Total Physical Memory ?

Thanks for your time.

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It sounds like something isnt working right, what operating system are you using, Vista? I would take out the original 512 and see what it says after, often ram isnt compatible if it is too different in size and speeds. Also, if your motherboard supports dual channel ram and you have the extra 512 chip it wont run in dual channel mode, you would run better with just the 2 chips then the added 512 chip.

Posted on Sep 12, 2009

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Posted on Jan 02, 2017

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Wanting to upgrade the memory on a hp pavillion a6220a




Standard Memory:


256 MB or 512 MB or 1 GB (Removable)
Maximum Memory: 2 GB Memory Expansion: 2 Sockets
************************************************************************************

256MB Memory (PC2-5300) 396519-001, PX974AA, PX974AT KHEW974

512MB Module (PC2-5300) 396520-001, EK477-69001, PX975AA, PX975AT KHEW975

1GB Module (PC2-5300) 398038-001, PX976AA, PX976AT KHEW976

*************************************************************************************

You can upgrade your system to 2GB MAX
Your memory type is PC2-5300
Please be sure to get the right memory (above listed)

*************************************************************************************

Have a great day
Pablo :-)

Let me know if you have some questions about this issue...

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We have the memory you need. Memory-Up is committed to provide the best memory and excellent services for all of our customers. We know that sometimes it is a bit confusing to buy the correct type, speed, and capacity of memory for your system. Therefore we hope that these tips below would help you for buying the new memory.
Memory Upgrade Tips

What is Compatibility and Memory Density Issue?

Memory module can be composed using different type of memory chips and therefore created different type of density for the module. For instance, a 512MB PC2700 DDR SODIMM memory can be composed using eight 32x16(High Density 512Mb technology) memory chips or sixteen 32x8(Low Density 256Mb technology) memory chips. As the laptops are equipped with different memory chipsets, some older laptop (chipset) would have compatibility issue working with the modules that is built with the newer 512Mb technology. Using the Not-Compatible memory will result the laptop to either not boot or only recognizing half of the memory modules. Thus that is not the correct memory for your system. Our Memory Finder and Memory Scanner will help to eliminate those problems and find the correct memory for you. We guaranteed the memory to work or your money back. 

How much memory do I need?

Here are some general descriptions for different type of users and the amount of memory they would need for their systems.

Normal User: The system is mainly used for checking e-mails, processing word/excel file, and web surfing. Suggestion: 512MB to 1GB of system memory. 

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Super User: The system is mainly used for running large number of database queries, professional editing of photos/videos, heavy multi-tasking environment. Usually a server or a workstation would be considered as Super User due to the multiple accesses from users. Suggestion: 2GB and above of system memory.

How much memory and memory slot do I have with my system? 

You can download our Memory-Scanner to find out the the amount of memory that you have and the memory slots that are available for upgrade. 

How many memory module should I buy?

It is recommended to purchase one module with bigger capacity than two modules with smaller capacity. For instance, if you can buy either one 1GB memory module or two 512MB memory modules for your system, it is recommended to get one 1GB and leave the other memory slot empty for future upgrade if necessary. 

Note: For systems that supports dual channel memory mode, although memory modules need to be installed in pairs to enable Dual Channel Memory Mode, we still recommended users to purchase one bigger module than two smaller modules since Dual Channel Memory Mode has only a minimal improvement in the actual system performance.

What if I want to mix different memory together?

Different sizes/speeds of memory can be used together as long as their specification are qualified by the systems. For instance, a laptop can use one 256MB and one 1GB of memory for the total of 1.25GB system memory. Mixing two different speeds of memory modules would result the system to run at the speed of the slower memory between the two modules. We recommend users to use our Memory Finder or Memory Scanner to find the correct memory for your system.

i thnk that will helpfull for u

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Hi reisrui, yes it is odd. (It's not the first time I have seen this.)
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If I can help you further, feel free to post.
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