Bios error 8302

[tbird6820]

I need a little help, my sister gave me a computer, Gateway GM5688E SN: XBG83 210 02339.
When I turn it on it does not boot unless I press F2 and than it goes to CMOS setup utility.
I press ESC than I hit enter and it states checking NVRAM, unknown bios error. Error code 8302, press F2 to resume and it boots up fine.
this is just a extra computer, I have spent 2 days trying to find out what's going on with no luck.

System Information:
OS Name Microsoft® Windows Vista™ Home Premium
Version 6.0.6002 Service Pack 2 Build 6002
System Manufacturer 7B3G1
System Model 7B3G1P04
System Type X86-based PC
Processor AMD Phenom(tm) 8400 Triple-Core Processor, 2100 Mhz, 3 Core(s), 3 Logical Processor(s)
BIOS Version/Date GATEWA - 20080218, 2/18/2008

I also used BIOSAgentPlus:
bios type: AMI
bios date: 02/18/2008
bios id: 64-0100-000001-001011-021808-ATHLON64
bios OEM: RS780 series 7B3G1P04021808
chipset: AMD 9600 rev 0
superIO: unknown
manufacture: unknown
motherboard: unknown

[edwin]

First of all, replace the CMOS battery with a new one CR2032 3V lithium coin cell.

There is a modified bios available out there (Gateway as usual is useless) but I first want to make sure it's not the easy simple fix.

[tbird6820]

ok I'll go buy a new CR2032, install it and let you know.
thanks Edwin

[tbird6820]

I put a new battery in turned it on, waited one min and nothing.
Pressed F2 got one beep and it said press F1 to load default, I did
Had to press F2 got one beep got setup utility and had to change system date 02/17/2008 to current and time, hit F10,ok, enter, rebooting, had to hit F2, one beep back to setup utility.
Esc, enter, checking NVRAM Update OK, unknown bios error. error code =8302, pressed F2 to resume and it boots up fine.