the problem you told me was correct,theyre was something wrong with the secound memory slot! one of them wasnt compatible and i replaced it .Thx you for all your support
System Manufacturer/Model Number Dell Precision 370 OS Windows 7 Pro X64 CPU Intel Pentium 4 Dual LP 3.4Ghz Memory 4GB DDR PC2-5200 ECC Graphics Card NVIDIA Quadro FX 3400/4400 Sound Card SoundMAX Integrated Digital Audio Monitor(s) Displays HP 22" w2207 LCD Screen Resolution 1680 x 1050
Hard Drives 300GB Maxtor 6L300RD PATA
128GB Kingston SV200S3128G SSD (boot)
1.5TB Seagate ST3150041AS SATA Internet Speed Cable via Road Runner 2MB Upload, 20MB Download
Computer type PC/Desktop System Manufacturer/Model Number Home Built Desktop By DataTech OS Windows 7 Ultimate X64 SP1 CPU Intel i5-2550K, Differing ~4.4-4.8GHz No built in GPU Motherboard ASUS P8Z68-V PRO/GEN3 Memory 16GB G.Skill Sniper 2133MHz 4x4GB Graphics Card ASUS ENGTX460 DirectCU/2DI/1GD5 GeForce GTX 460 Sound Card Onboard Realtek 5-1 Monitor(s) Displays Samsung P2570HD Screen Resolution 1920x1080
Keyboard Old, beat-up Dell USB From 10 yrs Ago Mouse Gigabyte m6900 wired PSU Corsair HX650W Case Inwin Dragon Rider Cooling Hyper 212 EVO w/two Noctua fans, push-pull, @1300 RPM Hard Drives Crucial M4 128GB for OS, 750GB Seagate MomentusXT for data, 500GB Seagate Constellation for storage Internet Speed 8-19 Mbs down, 3-4 Mbs up Comcast Cable Antivirus Norton Internet Security Browser IE 9, Opera when needed Other Info 4 case fans, LG BluRay-RE, ASUS DVD-RW, Mr. Fusion power generator with flux capacitor, 1.21 gigawatts.