Option # Manufacturing Part # Description Previous Part # n/a 300-1501 [F] Delta 680 Watt Power Supply n/a n/a 300-1851 [F] 680 Watt Power Supply, RoHS:YL X7444A-4 501-7462 1.593GHz CPU/Memory Module Assembly with 2GB Memory (4× 512MB DIMMs), RoHS:YL n/a 371-1116 512MB Registered ECC DDR1 DIMM (SPD 0.0 or 1.0) PC2100 & faster, RoHS:YL n/a 501-7461 [F] 1.593GHz CPU Board Assembly, RoHS:YL n/a 370-7684 UltraSPARC IIIi Heatsink, RoHS:Y n/a 501-7342 0MB System Board, w/o UltraSPARC IIIi, RoHS:Y n/a X7445A-4 501-7463 1.593GHz CPU/Memory Module Assembly with 4GB Memory (4× 1GB DIMMs), RoHS:YL n/a 371-1117 1GB Registered ECC DDR1 DIMM (SPD 0.0 or 1.0) PC2100 & faster, RoHS:YL n/a 501-7461 [F] 1.593GHz CPU Board Assembly, RoHS:YL n/a 370-7684 UltraSPARC IIIi Heatsink, RoHS:Y n/a 501-7342 0MB System Board, w/o UltraSPARC IIIi, RoHS:Y n/a X7446A-4 501-7464 1.593GHz CPU/Memory Module Assembly with 8GB Memory (4× 2GB DIMMs), RoHS:YL n/a 370-7672 2GB Registered DDR DIMM (SPD 0.0 or 1.0) PC2100 & faster, RoHS:YL n/a 501-7461 [F] 1.593GHz CPU Board Assembly, RoHS:YL n/a 370-7684 UltraSPARC IIIi Heatsink, RoHS:Y n/a 501-7342 0MB System Board, w/o UltraSPARC IIIi, RoHS:Y n/a X7415A [S] 501-6461 1.062GHz CPU/Memory Module Assembly with 2GB Memory (4× 512MB DIMMs) n/a 370-4939 38 [F] 512MB Registered DDR DIMM (SPD 0.0) n/a 501-6369 [F] 1.062GHz CPU Board Assembly n/a 501-6345 CPU Board, 0MB