tokyodreams

Hello, I recently received an emachines pc for christmas. I am wanting to buy a new video card for it as it has a PCI-E slot. When i went to emachines website it says the PCI-E is only 8x? Most video cards i have looked at are 16x

specs:

CPU: AMD Athlon™ 64 Processor 3800+
64-bit processor with AMD64 technology
(2.4GHz, 512KB L2 cache, 2000MHz system bus)
Operating System: Genuine Windows Vista® Home Premium1
Display: eMachines® 17" Widescreen LCD Display (E17T6W)
1440×900 (native and maximum)
Chipset: NVIDIA® GeForce® 6100
Memory: 1024MB 667MHz DDR2 dual-channel memory (2 × 512MB)
Expandable to 2GB
2 DDR2 slots (total), 0 DDR2 slots (available)
Hard Drive: 250GB SATA II (7200rpm, 8MB cache)2
Optical Drives: 16x DVD±R/RW SuperMulti drive
Up to 8.5GB with dual-layer media
Write max: 16x DVD±R, 8x DVD±R DL, 8x DVD±RW, 12x DVD-RAM, 48x CD-R, 40x CD-RW
Read max: 16x DVD-ROM, 48x CD-ROM, 8x DVD-ROM DL
Video: NVIDIA® GeForce® 6100 integrated graphics
Up to 128MB shared video memory
PCI Express (PCIe x8) slot available for upgrade
Sound: 6-channel (5.1) high-definition audio
Communications: 56K ITU v.92-ready fax/modem (RJ-11 port)
10/100Mbps Ethernet LAN (RJ-45 port)
Peripherals: Standard multifunction keyboard
2-button wheel mouse (PS/2)
Amplified stereo speakers (USB powered)
Ports/Other: 6 - USB 2.0 ports (2 front, 4 rear)
1 - VGA
1 - Parallel port
1 - Serial port
2 - PS/2 ports (keyboard and mouse)
3 - Audio (rear): line-in/side (stereo), front/headphone (stereo), microphone
2 - Audio (front): microphone, front/headphone (stereo)
1 - RJ-45 Ethernet port
1 - RJ-11 modem port

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If any help, please let me know!