Large DDR2 memory to the machine.
Importantly, this memory (if the version AD2U800B2G5) working at 1.8 V, which is the default memory voltage settings for the computer off-the-shelf like HP, Acer, Dell, etc. This is important because the computer is likely to be "tamper" proof , and NOT have a BIOS that will allow users to adjust high voltage (to 1.9,, 2.0 etc.). And many are also 800/pc6400 memory modules will not work in dual channel mode is less than 1.9V.
So: if you bought your computer's memory to store-bought, do yourself a supportive and hop into Newegg and use their memory tutor to help you find the right memory for your system. You must know the brand and model, but that's it.
Also, you can download some of the "monitor the performance," such as "Speccy," which will tell you what your computer's memory voltage is set at (, 1.8 1.9, etc.). Some computers will automatically adjust the voltage, but many - including an old computer that uses DDR2 memory - it will not.
Also, be aware that Windows Vista 32bit will not recognize more than about 3 gigs of memory. This is actually going to recognize 4, but that includes video memory as well. If you install a stick, you'll only get 3 gigs - BUT ... if you later upgrade to Windows 7 64-bit, you will get 4 gigs full. It is possible that Windows 7 32 bit will recognize 4gigs. Check first.
Bottom line: if you have 2007-2009 computers off the shelf and want fast, dual channel memory, make sure you buy memory that works at 1.8V.
This stick will do exactly that.
Importantly, this memory (if the version AD2U800B2G5) working at 1.8 V, which is the default memory voltage settings for the computer off-the-shelf like HP, Acer, Dell, etc. This is important because the computer is likely to be "tamper" proof , and NOT have a BIOS that will allow users to adjust high voltage (to 1.9,, 2.0 etc.). And many are also 800/pc6400 memory modules will not work in dual channel mode is less than 1.9V.
So: if you bought your computer's memory to store-bought, do yourself a supportive and hop into Newegg and use their memory tutor to help you find the right memory for your system. You must know the brand and model, but that's it.
Also, you can download some of the "monitor the performance," such as "Speccy," which will tell you what your computer's memory voltage is set at (, 1.8 1.9, etc.). Some computers will automatically adjust the voltage, but many - including an old computer that uses DDR2 memory - it will not.
Also, be aware that Windows Vista 32bit will not recognize more than about 3 gigs of memory. This is actually going to recognize 4, but that includes video memory as well. If you install a stick, you'll only get 3 gigs - BUT ... if you later upgrade to Windows 7 64-bit, you will get 4 gigs full. It is possible that Windows 7 32 bit will recognize 4gigs. Check first.
Bottom line: if you have 2007-2009 computers off the shelf and want fast, dual channel memory, make sure you buy memory that works at 1.8V.
This stick will do exactly that.