After Changing the OS from Vista to Windows 7 Ultimate prob

February 15, 2012 at 22:34:14
Specs: Windows 7 Ultimate, AMD Athlon 64 X2 dual-core 4800+
Hi: My desktop is an HP Pavilion A6242N-B having AMD Athlon 64 X2 dual-core 4800+ 2.5GHz processor. Mother board is MCP61PM-HM (Nettle2). Since I upgraded to windows 7 from Vista, the original OS, I am having lots of problem. I called HP today and they told me to go to Vista OS again. I am not sure where is the problem. I upgraded memory from 3GB to 6GB hoping that it will run faster. Main problem is sometime the computer does not boot at all and other time it boots but within a minutes or so the mouse and key board stop responding. I am not sure what is the problem. Need some advice. Thanks

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February 16, 2012 at 02:32:24
"3gb to 6gb" Did u install 64-bit of win 7? Win 7 run well with just 2gb of memory.

Do u have problems running win vista with 6gb of memory?

You know the real meaning of peace only if you have been through the war.

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February 16, 2012 at 04:55:26
You probably have an issue with your memory, not your operating system.
Your 3GB of memory was probably a 1GB stick and a 2GB stick running in single channel mode. To have increased it to 6GB you probably added another of each. ASSUMING for the moment that the memory was the same types (speed, latency, voltage, and more) which is definitely not a given (and probably not the case), your system might be trying to run the memory in dual channel mode but the 2GB sticks may not be on the same channel (sometimes slot #1 and #3 are on the same channel). I am also assuming for the moment that you are running 64bit Windows 7. In this case, looking up in your manual which slots are tied together in each channel and switching them might help. If the speed of the memory is different, the system typically will try to run the memory to the speed of the slower memory, but for some motherboards you need to put the slower memory into the First Channel (may be slot 1&3 but check manual to be sure) to run well. If the voltage or latency is different on the memory switching the memory around may or may not help. Depending on the difference between the sticks and their individual tolerances, they may be able to run together IF YOU understand enough about this to try setting up your memory manually in your BIOS. Even then, it may take a few tries and may not work in the end depending on those differences. You could try running just your two 2GB sticks only in the correct slots that are paired together if they are similar enough and experimenting with just that and seeing if that works for you since 64bit Windows 7 does run well on 4GB of memory and 32bit will just ignore the rest of the memory (over about 3.2GB total) and run well also. You also can your memory in matched pairs where you get two sticks that can run in dual channel mode. You also can put in just one stick of 2GB memory and go to and let their scanner tell you what memory you need. You can also test all of your memory one stick at a time with Memtest86 via a bootable CD and see if any of them are really bad.
For more information, we would need you to test the memory and then tell us exactly what each stick of memory is as far as make and model number as well as anything else listed on it or the package like voltage, latency, speed, etc.

You have to be a little bit crazy to keep you from going insane.

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February 16, 2012 at 07:19:39
6GB RAM is only useful if you're running Win7 64-bit. Did you confirm the new RAM was compatible & test it with memtest86+ before running Windows with it? Bad RAM can cause all sorts of problems.

If you did an in-place upgrade rather than a clean install of Win7, I recommend that you back up all your files, photos, etc to a USB jumpdrive, external HDD, or CD/DVD, then do a clean install. Wipe out ALL current partitioning. (this will remove the current Windows installation, HP recovery partition, HP_Tools, etc) then create 2 new NTFS partitions - one for Windows, the other for Storage. The partioning & formatting should be done using the HDD manufacturer's software, NOT the Win7 disk. If you use the Win7 disk, you'll be stuck with the hidden 200MB boot partition. If you prepare the patitions in advance with the HDD software, the boot partition will NOT be created.

If you have the Win7 Upgrade disk, here's how to do a clean install:

If necessary, we can help you with the drivers.

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February 16, 2012 at 10:25:41
HP does not appear to support that computer running Windows 7. I suggest you try using the Vista drivers from the link below.

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