Intel D15343-003 manual 2724

Intel® 82854 Graphics Memory Controller Hub (GMCH)

27:24	Read Counter Based Power Throttle Control (RCTC): These bits select the Counter based
	Power Throttle Bandwidth Limits for Read operations to system memory.
	R/W, RO if Throttle Lock.
	0h = 85%
	1h = 70%
	2h = 65%
	3h = 60%
	4h = 55%
	5h = 50%
	6h = 45%
	7h = 40%
	8h = 35%
	9h = 30%
	Ah = 20%
	B-Fh = Reserved
23:20	Write Counter Based Power Throttle Control (WCTC): These bits select the counter based
	Power Throttle Bandwidth Limits for Write operations to system memory.
	R/W, RO if Throttle Lock
	0h = 85%
	1h = 70%
	2h = 65%
	3h = 60%
	4h = 55%
	5h = 50%
	6h = 45%
	7h = 40%
	8h = 35%
	9h = 30%
	Ah = 20%
	B-Fh = Reserved
19:16	Read Thermal Based Power Throttle Control (RTTC): These bits select the Thermal Sensor
	based Power Throttle Bandwidth Limits for Read operations to system memory.
	R/W, RO if Throttle Lock.
	0h = 85%
	1h = 70%
	2h = 65%
	3h = 60%
	4h = 55%
	5h = 50%
	6h = 45%
	7h = 40%
	8h = 35%
	9h = 30%
	Ah = 20%
	B-Fh = Reserved

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