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P5W DH Deluxe memory question
Hello all,
I have been looking around for information on the P5W DH Deluxe motherboard regarding memory type and allowable amounts. I have read that this motherboard requires 1.8V RAM in order for the memory to run at 800MHz. If this is so does anyone have any recommendations for a brand/model that does well? Also I have seen folks comment that they could only get two or three gigs of RAM to show up under Windows XP. I only want to run two gigs of RAM while I am still running Windows XP Pro, but I wanted to upgrade to four gigs when I upgrade to Windows Vista. Will this board run four gigs OK under Vista? I was thinking of buying this board with an Intel QX6700 quad core processor and four gigs of RAM, just shelving two gigs of it until I switch over to Windows Vista. Many thanks to all replies! Bryan |
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P5W DH Deluxe memory question
It is a limition of the OS, not the board. You will only be able to utilize the full 4G if you run 64bit OS. If you are going to upgrade to Vista 32bit, you are still limited to 3.2-3.5G of ram Thanks for the info! I knew that XP 32 bit had that limitation but I thought that Vista 32 bit had the ability to go past that. If Vista still carries that limitation I wonder if the 64 bit version is worth the extra trouble (drivers, possible software compatability issues)? |
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P5W DH Deluxe memory question
"Bryan Williams" bryandmc at gamew00d dot net wrote in message ... It is a limition of the OS, not the board. You will only be able to utilize the full 4G if you run 64bit OS. If you are going to upgrade to Vista 32bit, you are still limited to 3.2-3.5G of ram Thanks for the info! I knew that XP 32 bit had that limitation but I thought that Vista 32 bit had the ability to go past that. If Vista still carries that limitation I wonder if the 64 bit version is worth the extra trouble (drivers, possible software compatability issues)? No. It's not worth it. I tried the 64-bit Ultimate and experienced no significant advantage over XP Pro 32-bit. Ron |
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P5W DH Deluxe memory question
"Bryan Williams" bryandmc at gamew00d dot net wrote in message ... It is a limition of the OS, not the board. You will only be able to utilize the full 4G if you run 64bit OS. If you are going to upgrade to Vista 32bit, you are still limited to 3.2-3.5G of ram Thanks for the info! I knew that XP 32 bit had that limitation but I thought that Vista 32 bit had the ability to go past that. If Vista still carries that limitation I wonder if the 64 bit version is worth the extra trouble (drivers, possible software compatability issues)? 'Out of the box', Vista still stops at 4GB. However you can enable PAE (which on XP, only gives extension beyond 4GB, on the Server releases), to go beyond 4GB. There is however a cost associated with this (table sizes get larger), and the address space for an application, is still limited as if this was not enabled. The syntax is:- bcdedit /set pae forceenable. The remapping does not function as well as the proper memory extension on Vista64. For example, with 8GB fitted, under Vista64, I can see over 8100MB, but under Vista32, only 7634MB. The problem (of course), is the limited driver support on Vista64 at present, which can make it a real *******. Best Wishes |
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P5W DH Deluxe memory question
"Bryan Williams" bryandmc at gamew00d dot net wrote in message
... Hello all, I have been looking around for information on the P5W DH Deluxe motherboard regarding memory type and allowable amounts. I have read that this motherboard requires 1.8V RAM in order for the memory to run at 800MHz. If this is so does anyone have any recommendations for a brand/model that does well? Also I have seen folks comment that they could only get two or three gigs of RAM to show up under Windows XP. I only want to run two gigs of RAM while I am still running Windows XP Pro, but I wanted to upgrade to four gigs when I upgrade to Windows Vista. Will this board run four gigs OK under Vista? I was thinking of buying this board with an Intel QX6700 quad core processor and four gigs of RAM, just shelving two gigs of it until I switch over to Windows Vista. Many thanks to all replies! Bryan I think you either got bad info, or misunderstood. The factory setting for memory voltage is 1.8v, so you need a kit that can boot with that low a voltage - most PC2-6400 (DDR2-800) kits require 1.9v - 2.1v to be stable at 800MHz. That being said, I have yet to see a kit of PC2-6400 cause any problems on first boot, at 1.8v (especiallu considering that the memory will not be running at the rated 800MHz at stock settings. You'll need to manually set the speed to DDR2-800 in the BIOS.) When you do buy a kit, make sure you read the specifications for rated voltage at 800MHz and then set it accordingly in the BIOS. -phil |
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