加拿大航空商务舱:联想锋行K6030A显卡总线的问题??

联想锋行K6030A,AMD64 3000+,256M,80GS-ATA,GeForce6200TC显卡。最近突然发现一个问题，就是PCI-E显卡属性中的总线类型为PCI-E x8，应该是PCI-E x16吧，我用系统测试工具软件everest检测结果为Bus Type PCI Express x16 @ x8，听说PCI-E x8比PCI-E x16差很大呢，我的电脑怎么了，换内存、恢复BIOS的默认设置都试过了，还是不行啊，联想的客户服务也没有什么合理的解释，大家来帮助分析一下这个问题，究竟毛病出在什么地方呀？？！！对性能影响多大啊？！

Video Adapter Properties
Device Description NVIDIA GeForce 6200 TurboCache(TM)
Adapter String GeForce 6200 TurboCache(TM)
BIOS String Version 5.44.02.29.00
Chip Type GeForce 6200 TurboCache(TM)
DAC Type Integrated RAMDAC
Installed Drivers nv4_disp (6.14.10.7184 - nVIDIA ForceWare 71.84)
Memory Size 128 MB

Graphics Processor Properties
Video Adapter nVIDIA GeForce 6200 TurboCache
GPU Code Name NV44
PCI Device 10DE / 0161
Transistors 77 million
Process Technology 0.11u
Die Size 110 mm2
Bus Type PCI Express x16 @ x8（显示属性中内容是“总线类型PCI Express x8")
Memory Size 128 MB
GPU Clock 351 MHz
RAMDAC Clock 400 MHz
Pixel Pipelines 4
TMU Per Pipeline 1
Vertex Shaders 3 (v3.0)
Pixel Shaders 1 (v3.0)
DirectX Hardware Support DirectX v9.0c
Pixel Fillrate 1404 MPixel/s
Texel Fillrate 1404 MTexel/s

Memory Bus Properties
Bus Type DDR
Bus Width 64-bit
Real Clock 250 MHz (DDR)
Effective Clock 501 MHz
Bandwidth 4008 MB/s