Special Forums Hardware Filesystems, Disks and Memory Maximum Memory RAM for windows 7 32 bit Post 302880902 by nash83 on Tuesday 24th of December 2013 10:44:56 AM
Maximum Memory RAM for windows 7 32 bit

i have just installed 4 gb RAM ddr3 on OS Windows 7 32 bit.
In "manage peripherals" i see this section:

Memory installed (ram) : 4,00 gb (2,30gb usable)

Why only 2,30 gb usable ?
In Windows 7 32bit the maximum size is not 3,00gb ?

see file attached, please
Test Your Knowledge in Computers #938
Difficulty: Medium
The ping utility was written by Mike Muuss in December 1983.
True or False?

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csx_Parse_CISTPL_DEVICE(9F)				   Kernel Functions for Drivers 			       csx_Parse_CISTPL_DEVICE(9F)

csx_Parse_CISTPL_DEVICE, csx_Parse_CISTPL_DEVICE_A, csx_Parse_CISTPL_DEVICE_OC, csx_Parse_CISTPL_DEVICE_OA - parse Device Information tuples SYNOPSIS
#include <sys/pccard.h> int32_t csx_Parse_CISTPL_DEVICE(client_handle_t ch, tuple_t *tu, cistpl_device_t *cd); int32_t csx_Parse_CISTPL_DEVICE_A(client_handle_t ch, tuple_t *tu, cistpl_device_t *cd); int32_t csx_Parse_CISTPL_DEVICE_OC(client_handle_t ch, tuple_t *tu, cistpl_device_t *cd); int32_t csx_Parse_CISTPL_DEVICE_OA(client_handle_t ch, tuple_t *tu, cistpl_device_t *cd); INTERFACE LEVEL
Solaris DDI Specific (Solaris DDI) PARAMETERS
ch Client handle returned from csx_RegisterClient(9F). tu Pointer to a tuple_t structure (see tuple(9S)) returned by a call to csx_GetFirstTuple(9F) or csx_GetNextTuple(9F). cd Pointer to a cistpl_device_t structure which contains the parsed CISTPL_DEVICE, CISTPL_DEVICE_A, CISTPL_DEVICE_OC, or CISTPL_DEVICE_OA tuple information upon return from these functions, respectively. DESCRIPTION
csx_Parse_CISTPL_DEVICE() and csx_Parse_CISTPL_DEVICE_A() parse the 5 volt Device Information tuples, CISTPL_DEVICE and CISTPL_DEVICE_A, respectively, into a form usable by PC Card drivers. csx_Parse_CISTPL_DEVICE_OC() and csx_Parse_CISTPL_DEVICE_OA() parse the Other Condition Device Information tuples, CISTPL_DEVICE_OC and CISTPL_DEVICE_OA, respectively, into a form usable by PC Card drivers. The CISTPL_DEVICE and CISTPL_DEVICE_A tuples are used to describe the card's device information, such as device speed, device size, device type, and address space layout information for Common Memory or Attribute Memory space, respectively. The CISTPL_DEVICE_OC and CISTPL_DEVICE_OA tuples are used to describe the information about the card's device under a set of operating con- ditions for Common Memory or Attribute Memory space, respectively. STRUCTURE MEMBERS
The structure members of cistpl_device_t are: uint32_t num_devices; /* number of devices found */ cistpl_device_node_t devnode[CISTPL_DEVICE_MAX_DEVICES]; The structure members of cistpl_device_node_t are: uint32_t flags; /* flags specific to this device */ uint32_t speed; /* device speed in device /* speed code format */ uint32_t nS_speed; /* device speed in nS */ uint32_t type; /* device type */ uint32_t size; /* device size */ uint32_t size_in_bytes; /* device size in bytes */ The fields are defined as follows: flags This field indicates whether or not the device is writable, and describes a Vcc voltage at which the PC Card can be operated. CISTPL_DEVICE_WPS Write Protect Switch bit is set Bits which are applicable only for CISTPL_DEVICE_OC and CISTPL_DEVICE_OA are: CISTPL_DEVICE_OC_MWAIT Use MWAIT CISTPL_DEVICE_OC_Vcc_MASK Mask for Vcc value CISTPL_DEVICE_OC_Vcc5 5.0 volt operation CISTPL_DEVICE_OC_Vcc33 3.3 volt operation CISTPL_DEVICE_OC_VccXX X.X volt operation CISTPL_DEVICE_OC_VccYY Y.Y volt operation speed The device speed value described in the device speed code unit. If this field is set to CISTPL_DEVICE_SPEED_SIZE_IGNORE, then the speed information will be ignored. nS_speed The device speed value described in nanosecond units. size The device size value described in the device size code unit. If this field is set to CISTPL_DEVICE_SPEED_SIZE_IGNORE, then the size information will be ignored. size_in_bytes The device size value described in byte units. type This is the device type code field which is defined as follows: CISTPL_DEVICE_DTYPE_NULL No device CISTPL_DEVICE_DTYPE_ROM Masked ROM CISTPL_DEVICE_DTYPE_OTPROM One Time Programmable ROM CISTPL_DEVICE_DTYPE_EPROM UV EPROM CISTPL_DEVICE_DTYPE_EEPROM EEPROM CISTPL_DEVICE_DTYPE_FLASH FLASH CISTPL_DEVICE_DTYPE_SRAM Static RAM CISTPL_DEVICE_DTYPE_DRAM Dynamic RAM CISTPL_DEVICE_DTYPE_FUNCSPEC Function-specific memory address range CISTPL_DEVICE_DTYPE_EXTEND Extended type follows RETURN VALUES
CS_SUCCESS Successful operation. CS_BAD_HANDLE Client handle is invalid. CS_UNKNOWN_TUPLE Parser does not know how to parse tuple. CS_NO_CARD No PC Card in socket. CS_NO_CIS No Card Information Structure (CIS) on PC Card. CS_UNSUPPORTED_FUNCTION No PCMCIA hardware installed. CONTEXT
These functions may be called from user or kernel context. SEE ALSO
csx_GetFirstTuple(9F), csx_GetTupleData(9F), csx_Parse_CISTPL_JEDEC_C(9F), csx_RegisterClient(9F), csx_ValidateCIS(9F), tuple(9S) PC Card 95 Standard, PCMCIA/JEIDA SunOS 5.11 20 Dec 1996 csx_Parse_CISTPL_DEVICE(9F)
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