Hi I recently bought an Aopen GeForce 6600GT 128mb graphics card to replace my old Geforce 5200. I installed the card no problem. But when i started Doom 3 it had loads of black squares over the graphics. It then bombed out. I restarted my computer and i found that the startup screen looked odd. There were blue lines down the start up screen - (My computer is made by Advent and when it starts there is a white screen with Advent in big letters on it). My windows in 'windows' looked odd. There were 'blue tinges' below any text in a white window, the desk top looked odd almost, like I was running in 16 colours even though i wasn't. I found out it could be the power supply which was only 300w. So i bought a new one and installed a Hiper 525W power supply which is a very good power supply. I thought this would solve the problem but when i started up, the Advent startup screen again had blue lines down it and the desktop and other windows look odd. After a couple of restarts the computer won't boot up at all, it gets to the windows screen then the screen goes black, a mouse pointer appears then it freezes and my computer beeps and crashes. I have reinstalled my old Geforce 5200 and that works fine. I have tried everything. I have looked at updating the motherboard, a micro ATX (though not yet updated the bios, even though the bios is pretty new anyway). I have installed a new power supply. I have unistalled all the drivers and renstalled them from fresh. I have even reinstalled windows, but i still get corrupted (Advent) start up screen and computer freezing once the 6600Gt is put in. Does any body have any ideas? Could it be a bad graphics card? Could it be that my motherboard can't cope with a graphics card of this type? just before the Advent Screen appears I get writing on a black screen saying something like 6600GT bios etc, so the card is being recognised, and when windows did start up the card seemed to of been recognised within windows. Thanks for any help you can give (its driving me mad this thing! ;-) Quinno2 To help here are my original computer details: CPU: Intel Pentium 4 3.06 GHz (Northwood) BIOS: Phoenix-Award BIOS. Press the Delete key to enter. Motherboard: ECS SF2 Memory: 512 MB DDR RAM - PC2700 ( iahev upgraded this to 1gb) Hard Drive: 80GB Maxtor 6Y80L0 CD Drive: Lite-On XJ-HD166 16x(48x) DVD-ROM upgraded to DVD writer Lite-On: LTR-52327S 52x CD-RW MC Reader: Flash Memory Card Drive (7 in 1) Video Card: nVidia GeForce FX 5200 (128MB) 64bit Sound Card: Realtek AC'97 audio Speakers: Advent SP-120N Modem: Conexant PCI HSPi V.92 (CX11252-11) Network Card: Realtek 8139 / 810X (Onboard) Case: Jupiter Keyboard :Advent PS/2 keyboard Mouse: Advent PS/2 mouse Some more Motherboard Info Form Factor: Form Factor: microATX. Size: 244*230mm. Layer: 4 layers CPU Support: Socket type: P4 Socket478. Type: 1.5G/ 1.6G/1.7G…2.8G and above. System Memory: Module Speed: DDR266 / DDR333/ DDR400. Socket Type: Two DDR 184-pin unbuffered DIMM sockets. Maximum Memory size: 2GB. Core Logic (Chipset): North Bridge: SiS661FX Host interface controller. AGP controller : AGP 3.0 compliant. 1.5V AGP Interface. AGP 8X/4X Interface. IO Controller: South Bridge: SiS964 / 964L Audio Chipset: AC’97 Audio Codec Compliant with AC'97 v2.2 specification Connectors: IDE Headers: Two 40-pin IDE low profile headers Devices: Up to 4 IDE devices Speed: PIO mode, ATA100/ 133 1.8. Serial ATA Revision: Serial ATA V1.0 Compliant Connectors: Two 7-pin SATA connectors Devices: Up to 2 SATA devices Speed: 1.5Gbps 1.9. Audio Connectors and Headers Real Audio Connector: Line Out, Line In, Microphone In One CD-in header (4*1) One Aux-in header (4*1) One Intel specification audio header (5*2) 1.10.

It might be a fualty card then. Matt www.bbcomputing.co.uk matt@bbcomputing.co.uk

if your system was beeping at startup it means something is wrong, did it do it with the old power supply? If not you may have the new one improperly hooked up or as said it maybe a faulty card, however long shot wise, I had almost the same issue back when I bought a card, I never read nvidia's driver installation recommendations, to uninstall the old display drivers for the old hardware, so your comp has none, shut down, then boot with the new card in place and install the drivers then (basically making it a fresh install). Windows XP Home Celeron 2.8 Ghz 768 Mb Ram emachines PCI Geforce fx 5700LE

the curse of the faulty card shipping sticks again! it is probibly the card, make sure you have the power connector pluged up to the card. try flashing your bios to a newer bios. this may help and it may not. but more than likly it is your card. p4 3.0ghz @ 222X15=3330mhz 512mb pc3200 dual channel @222mhz 80gb wd hdd/40gb maxtor when on linux 8x agp geforce 6200 @ 530/585can't unlock extra pipes. plz help if you can Audigy 2 ZS<b

lol buy it from ebay? because my friend has the same problem after he bought the geforce 6800 from ebay. it was seal in box, but still no guarantee was new or not. he put back the old graphic card and it works perfect, but when he put back the 6800, same problem occurs again, even on a different PC. so IF you bought it from ebay, return this to the seller. if the seller doesnt allow, then complain this to ebay or paypal, then ebay/paypal will take the money from the seller's bank account and give back to you, but you have to ship back the item to the seller. Beware buyers. Seal in box doesnt mean is news on Ebay. there are some stores that can seal package for you. P4 3.2GHZ kingstone 1GB DDR 3200 ABIT AS8 mobo Nvidia geforce 6800 Soundblaster 24-bit audigy 2

did you connect the power cable to the graphic card? beeping on start up is either CPU/graphic card's fans are not spinning. P4 3.2GHZ kingstone 1GB DDR 3200 ABIT AS8 mobo Nvidia geforce 6800 Soundblaster 24-bit audigy 2

try the card on other computer, either your 2nd pc or friend's PC, i always do that to test if its the video card problem or the pc problem. if other PC has the same problem, then you might wanna replace/return the video card. if other PC works fine with this video card, then you need find out what causes the problem between your PC and the video card. P4 3.2GHZ kingstone 1GB DDR 3200 ABIT AS8 mobo Nvidia geforce 6800 Soundblaster 24-bit audigy 2