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Remove Old Windows Installs

Ask the Doctor LogoI just bought and installed Windows 7 Pro. Previously, I was dual-booting Windows 7 RC and Windows XP on a 500GB split-partitioned drive. Windows 7 Pro is on a new 320GB HDD.

How do I remove Windows XP and 7 RC from the boot selection screen and just have the computer boot straight into Win7 Pro with no selection screen?

Once I take care of that, I want to remove the partition and use the 500GB HD as data backup. All my data stored on the partitioned drive has been moved over to either the C: drive (7 Pro) or another 320GB HD installed or an external HD.

—Jeff W

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Videocard Overkill

Ask the Doctor LogoI have two older systems: an Asus A8V-VM board with an Athlon X2 4800+ at 2.5GHz, 4GB of OCZ Platinum DDR/400 RAM, and a GeForce 6200 in a PCI-E x16 slot; and an old OEM eMachines board with an Athlon X2 6000+ at 3.0GHz, 4GB of OCZ Platinum DDR2/800, and onboard GeForce 6100 graphics, with an empty PCI-E x8 slot.

I want to upgrade one of them with a Radeon 5000 series to hold me over until I can put together a Lynnfield system. My concern is that both of these boards only have a PCI-E 1.0a slot. Would I notice any real performance difference between the Radeon HD 5750 vs. the 5970? Or would I just be wasting my money on the higher-end card?

—Tim Brown

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Stuck in the 4GB Morass

Ask the Doctor LogoI want to know if 32-bit Windows 7 will limit how much system memory I can install. I know that 4GB is the maximum that 32-bit Windows XP will recognize. Is this the same for Windows 7? Do I need to buy 64-bit if I want to install more than 4GB memory?

—Anthony Roth

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Protected Audio Path from GPU?

Ask the Doctor LogoI’m in the process of piecing together an HTPC that will run Windows 7 Home Premium. I’d like to be able to connect the HTPC to my receiver via a single HDMI cable. Are there any videocards available that will send both video and TrueHD audio via an HDMI cable, or do I have to use the Asus Xonar HDAV 1.3 Slim that was reviewed in the November issue?

—Ed Yeich

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'Upgrade' Is a Relative Term

Ask the Doctor LogoI have an Asus P5L-MX motherboard and have wanted to upgrade the CPU for some time. Right now, I have a single-core Intel Celeron D with a Prescott core. I’ve pretty much maxed out the overclocking possibilities (I’ve gone from a stock 2.66GHz clock to 3.47GHz) and now I want to replace it with something better.

I want to keep the motherboard, however, which slightly complicates matters. As I recall, multicore processors were just catching on around the time my mobo was made. The documentation says it can support dual-core CPUs, and it has an LGA775 socket. I’d like to know whether it can take a quad-core or higher CPU, and if so, which ones (or if not, which dual-core CPU)?

—Andrew Lambert

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