Du har troligen inte tryckt in minnena tillräckligt långt i sina slots.
Du hör inga tut ?
Du kan läsa lite här (Felsökning: Det går inte att starta min dator )
http://support.apple.com/kb/TS1367?viewlocale=sv_SE
Lite allmänna saker om minne till de burkarna:
Installing Memory
Your Power Mac G5 has eight memory slots (in two banks of four each). You can install
additional synchronous dynamic random-access memory (SDRAM) in packages called
dual inline memory modules (DIMMs) in the memory slots. Your computer comes with
a minimum of 512 MB of random access memory (RAM), installed as a pair of 256 MB
DIMMs in two of the DIMM slots. You can install additional pairs of DIMMs in the open
DIMM slots.
DIMMs must be installed in equal-sized pairs and fit these specifications:
* PC2-4200, 533 MHz, Double-Data-Rate 2 (DDR2) DIMMs, also known as DDR2-533
* 64-bit wide, 240-pin modules
* 18 memory devices maximum per DIMM
* Conform to JEDEC specification (see note below)
* Nonparity
* Error-correcting code (ECC) or no error-correcting code (NECC) modules. Do not mix
ECC and NECC memory modules within a pair.
* Unbuffered (not registered or buffered)
* Maximum height of 1.25 inches
Important: DIMMs from older Macintosh computers are not compatible with and do
not fit in your Power Mac G5.