Upgrading my Old PC (need advice)

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MyNameIsDave
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Joined: 12/02/2010
Posts: 2

Upgrading my old PC.

Ok. I will tell you my current set up before I start asking questions.

Windows XP Media Center (SP3 + all updates)
Motherboard - Dell 0FJ030 (BIOS - A05 date: 05/30/2006)
Processor - Pentium D 940 @ 3.2ghz
Memory RAM - 4 Gb DDR2 @ 266.0 MHz (no name brand? It's all black)
Video Card - BFG Nvidia GeForce 9800 GT Eco Intelligence Edition
PSU - Dell PSU @ ???. It was able to run my old BFG 8800 GT Over Clocked edition just fine. So I'm guessing it's between 450watts and 500?)
HDD - Western Digital Caviar 320gb @ 7,200 RPM
Sound Card - Soundblaster Xifi
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I had asked for a new CPU for x-mas and it has already been ordered for me. What I am getting is an Intel Core 2 Quad Q9550 Yorkfield 2.83GHz 12MB L2 Cache LGA 775 95W Quad-Core.

Question a):In certain games, which are older and only use a single core, would I feel any performance drop? b) If so, can I overclock this Quad Core (2.8 ghz) back to my old Pentium D CPU setting which was 3.2ghz only using air? (the CPU is also shipping with some Arctic Silver 5 Thermal Compound, and the CPU cooler in my case seems to be huge and works fine).

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I was also wondering if these parts that I am buying in the near future to upgrade my old PC would conflict with my motherboard or any other parts/software? I tried to use google, but not much results turn up.

so here is my upgrade list that I may purchase , and I would appreciate any helpful input.

1. G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1200 (PC2 9600) Dual Channel Kit

2. CORSAIR CMPSU-650TX 650Watt

3. (x 2 in RAID0) Western Digital VelociRaptor 300GB 10000 RPM 16MB Cache SATA 3.0Gb/s 3.5"

4. EVGA GeForce GTX 460 Superclocked 1GB 256-bit GDDR5 PCI Express 2.0 x16

5. Windows 7 Home Premium 64bit ( Or whatever is the equivalent of Media Center for XP)

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Thank you very much for any who respond with great advice.

The whole purpose of education is to turn mirrors into windows. ~Sydney J. Harris

Fodir
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Joined: 10/23/2010
Posts: 19

if you got a dell pc what you can do to make sure all the parts will work is to look around your case and see if thre's a sticker telling you what exact modell of pc you got. then go to th dell homepage and see the specs of that model. you can then see what parts it supports.
you might even find this information in any documentation that came with your pc, on paper or even on the HDD.

what i am uncertain about is jumping from a single-core to a quad-core cpu. your motherboard might not support the cpu.
the memory will work but it might function at a lower setting if your motherboard doesn't support memory that fast.