Sun Microsystems 60 service manual Table C-10300-MHz 3.3-ns CPU Modules Power Estimate

TABLE C-10300-MHz (3.3-ns) CPU Module(s) Power Estimate

		2.5-Vdc Core		3.3-Vdc System		Watt	Watt
Description	Qty	(amps)		(amps)		(max)	(max)
		ea.	sub	ea.	sub	ea.	sub
SRAM	9			0.909	8.18	3.00	27.00
(8 data +1 tag)
CPU module core + I/O	1	13.33	13.33			33.33	33.33
CPU module I/O	1			0.27	0.27	0.90	0.90
BDB	2	1.04	2.08			2.6	5.20
(@ 2.5 Vdc, EPIC 4)
CPU module	1		15.41		8.45		66.43
CPU module	1		15.41		8.45		66.43

PCI Cards

The PCI card power budget supports a total of 60 watts, which is distributed among four PCI cards in an arbitrary way as long as the total PCI power does not exceed 60 watts. TABLE C-11lists the power estimate for the 5-Vdc PCI card and TABLE C-12lists the power estimate for the 3.3-Vdc PCI card.

TABLE C-11PCI Card (5 Vdc) Power Estimate

	PCI Cards	Current each	Current total	Total Power
Voltage Rail (Vdc)	(Max No.)	(amps)	(amps)	(W)
5	3	3.0	12.0
3.3	1	0	0	<= 60
+12	4	0.5	2.0
-12	4	0.1	0.4

C-40Sun Ultra 60 Service Manual • August 2001