Dear SLI tech people, I have 2 Inno3d 9800 GT cards in my computer. The only difference is one is a 512Mb and one is a 1Gb card. I only got the 1Gb because it was given to me. Now with them being slightly different spec I dont get a box to tick in the 3d settings of my NVIDIA control panel to enable SLI. That I get cos the cards need syncing if thats the term. Now once upon a time, NVIDIA wrote on their website that Coolbits could be used (set to value 18) to make my two cards work together so I did the following: Enabling CoolBits; Step 1. Click on your Start Menu in the Windows Task Bar and select Run. When the command box opens, type "regedit" (without the quotes) and press OK. With the registry editor open, go to HKEY_LOCAL_MACHINE \SOFTWARE \NVIDIA Corporation \Global \NVTweak (expand the menu using the "+" expansion buttons to locate this menu item). Click on "NVTweak" in the menu. Next, right-click on the empty space inside right window and choose "New>DWORD value". Name the value "Coolbits" (without the quotes). Step 2. Within the Registry Editor, right click on Coolbits and choose Modify. Change the Value data to "18" (without the quotes) and click OK. Exit the Registry Editor. Nothing has changed and with the newest drivers and software from NVIDIA their System Tools addon still nothing. My ASUS motherboard must be sli-ready because it came with the bridge which i have slotted in as required. The 2 cards are recognised but I just cant get them into SLI. Any ideas? Oh, and do I have to watch which way round the cards are slotted in my PC and with my bridge not indicating which way round it should go am I ok to just put it on any which way? Please help because I like games.