Another problem with precision r7910

Installed SL 6.9 but it only recognizes one of the 8 CPU cores. Oddly, the 6.9 Live CD sees all of them. Is there a setting somewhere that determines this? -- Dan

Trouble installing SL6 on Dell 7910

We just got a Dell Precision R7910. The net install CD hangs at "detecting hardware." I can boot the LiveCD, but not the install CD. I've tried both 6.7 and 6.8. Has anyone run into this? Any work-arounds? -- Dan McDaniel