what exactly do you mean when you say it goes out..does that mean the Bios Splash screen doesn't even come up??
The battery warning could be the CMOS battery going bad.
To Get into the Bios you press the F2 key as soon as the Dell Splash screen comes up.
Home Built Sandy Bridge P8P67 i7 2600k @ 4.5 GHz 8gigs GSkill Ripjaws. Corsair 800D Case and AX1200 Ps X-Fi Titanium Fatal1ty pro PCIe Sound Card
Dell Studio XPS 1645 Window 10 Pro
Forum member since 2003