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08/15/2008 12:12:26 PM · #1 |
Hi dear dpc photographers!
I was recently talking with a guy in a pc store if windows vista would recognise more than 3 Gb of ram, because in my laptop I had 2 GB and I wanted to upgrade to 4GB. He said that with service pack 1 Vista could recognise at least 4 GB, and I bought 2 slots of 2 GB each and in fact it recognises the whole 4GB.
Now in my home workstation I want to to the same thing but with more memory. I have an HP Pavillion with a AMD Phenom 9500 quadcore processor, with 3GB of RAM distributed in 2x 512kb + 2x 1GB. I want to get rid of the 2x 512 and buy 2x 2GB to have 6GB of total ram, but only if I see that is worth the money, because if the Os doesen't recognise it, it might be just waisting money.
My Os is Windows Vista Home Premium 32bits.
Any thoughts ou experience on this subject?
Nuno
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08/15/2008 12:16:10 PM · #2 |
| Well I know for sure that the 64bit version does... never bothered to try with my other PC... you might try looking it up on the microsoft site... |
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08/15/2008 12:19:04 PM · #3 |
I did try to find out in microsoft website... they aren't specific about this.
Would you need to format your hard drive to upgrade Vista to a 64bit version? And is it safe for the programs?
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08/15/2008 12:20:26 PM · #4 |
recently acquired vista 64bit (intel quad cpu) & 8gig ram
like any microsoft product it is really good in somethings & totally sucks at others ...
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08/15/2008 12:22:07 PM · #5 |
my new pavilion has the 4gb with the 64bit vista, so far I only found one program that needed an update to run(huey) but I will check at home to see if it can be upgraded to more.
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08/15/2008 12:25:37 PM · #6 |
64 bit vista supports up to 8? 16? I can't remember excatly. Unfortunatly vista 32bit only supports up to 4gb of ram.
2 to the power of 32 = 4,294,967,296
4,294,967,296 / (1,024 x 1,024) = 4,096
However, chances are it will only detect 3.5 gb of ram, since memory mapped devices such as vid cards will take up some of that precious ram (as will the bios rom)
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08/15/2008 07:19:57 PM · #7 |
Originally posted by Bujanx:
64 bit vista supports up to 8? 16? I can't remember excatly. Unfortunatly vista 32bit only supports up to 4gb of ram.
2 to the power of 32 = 4,294,967,296
4,294,967,296 / (1,024 x 1,024) = 4,096
However, chances are it will only detect 3.5 gb of ram, since memory mapped devices such as vid cards will take up some of that precious ram (as will the bios rom) |
I've heard also this from the guy at the store. But in my laptop it recognises the hole 4GB. But I've also heard that if you have more than what is recognised, it will be used by hardware, like the graphic card. So probably it will not be a complete waist. I my graphic card is a Gforce 8500 GT with 512 mb of ram, so a gigabite for it sounds good.
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08/15/2008 07:55:05 PM · #8 |
| Everything you never wanted to know about windows mem caps here. |
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08/15/2008 08:06:56 PM · #9 |
The reality of it is that only about 3.3G of the 4G is addressable by the 32bit OSes, unless you tweak using BCEdit to force PAE to recognize 4G or greater. The caveat is 32bit OSes do not manage memory well above ~3.3-3.5G. Don't count on your hardware to use any of the left over memory, hardware requires drivers, drivers are loaded as the OS is loaded. On-board Video will share installed memory but firmware tells it to do that. That's why we see so many Vista 32bit with 3G ram installed on the shelfs these days. The Vista 64bit are coming with 6-8Gs of RAM...
It is kind of silly that lots of us have (and I have 1 or 2 here) 32Bit OSes running on 64bit hardware. |
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