EPOX P55-KV User manual

Introduction1-1
Chapter 1
Introduction
The P55-KVmainboard is a high performance system hardware based on
Intel Pentium processor and is equipped with two PCI slots, three standard
ISAslots,SuperMulti-I/OcontrolleranddualportPCI-IDEconnectorsfor
thefutureexpansion.Thehardwaredimensionis220mmx190mmwitha
four-layer-design technology.
Specification
VIAVT82C580VPXPCIsetchipset.
Intel Pentium Processor, AMD K5 & Cyrix M1 operating at75~200MHz
and P55C with 321 ZIF socket 7 and scalability to accept faster Processors
in the future.
Supports up to 128 MegaBytes of DRAM (a minimum of 4 MB) on board
(72PinsSIMMx2). BIOSwillautometicallydetectandconfigureFPDRAM
andEDODRAM(RefertoChapter 2-4SystemMemoryConfiguration).
Supports Onboard Pipelined Burst (synchronous) L2WriteBack Cache.
Thecachememorycombinationcanbe256KB/512KB(32KB*32,64KB*32
SRAM,respectively).
Supports three 16 bit ISA slots, two 32 bit PCI slots, and provides two
independent high performance PCI IDE interfaces capable of supporting
PIOMode3andMode4devices.TheP55-KVsupportstwoPCIBus
Masters and a jumperless PCI INT# control scheme which reduces configu-
rationconfusion whenplugginginPCII/Ocontrollercard(s).
SupportsATAPI(e.g.CD-ROM)devicesonbothIDEinterfaces.
Supports 1 floppy port, 1 parallel port (EPP,ECP port), and 2 serial ports
(16550FastUARTcompatible).
Supports a PS/2 style mouse and standard AT style keyboard connectors.
Supports Award Plug & Play BIOS . The BIOS is stored in Flash EPROM
form. It provides better upgradeability for the system.
Supports CPU Hardware sleep and SMM (System Management Mode).
P55-KVutilizesLithiumbatterywhichprovidesenvironmentalprotection
and longer battery life.
R
R

1-2 P55-KV
82438
PCI#1
PCI#2
<
BIOS
K/B
CONN.
Power Conn.
PRINTER
COM2
P55-KV Layout
COM1
SIMM 1 SIMM 2
Primary IDE
Secondary IDE
FDD CONN.
J1
Socket7
J2
J6
J5
J4
J8 J7 J9
KEY-LOCK SPEAKER RESET SLEEP TB-LED HD-LED G-LED
+++
J10
J11
Figure 1-1
W83877
82C587
82C587
32K*32
32K*32
82C586A
82C585VPX
J3

Hardware Design 2-1
2-1 Mainboard Layout
Chapter 2
Hardware design
TheP55-KVisdesignedwithVIA82C580VPXPCIsetchipsetwhichisdeveloped
by VIA Corporation to fully support Pentium Processor PCI/ISA system. The VIA
82C580VPXPCIsetchipsetprovidesincreasedintegrationandimprovedperformance
designs. The chipset provides an integrated IDE controller with two high perfor-
mance IDE interfaces for up to four IDE devices (hard devices, CD-ROM device, etc).
The Winbond W83877F Super I/O controller provides the standard PC I/O functions
including:floppyinterface,two16ByteFIFOserialportsandEPP/ECPcapable
parallel port. TheP55-KV layout is shown in the previous page (left page) for user's
reference.Caremustbetakenwheninsertingmemorymodules,insertingCPUor
even plugging PCI cards into the associated slots to avoid damaging any circuits or
sockets on board. A cooling fan is strongly recommended when installing P54C/
P54CTB/P55C/K5/6x86processorduetopossibleoverheat.
TheP55-KVsupportsaminimumof4MBofSystemMemoryandamaximumof
128MBwhileL2Cachecanbe256KB/512KBsynchronousSRAMOnboardto
increasesystemperformance(Referto Page2-6CacheMemoryConfigurationfor
thedetails).
The P55-KV supports standard Fast Page and EDO (Extended Data Out or Hyper
Page Mode) .TheP55-KVprovides two 72-pin SIMM for memory expansion. The
socketssupport1Mx32(4MB),2Mx32(8MB),4Mx32(16MB),and8Mx32(32MB)
single-sided or double-sided memory modules. The memory timing requires 70 ns
Fast page devices or 60 ns EDO DRAM. (DRAM Modules may be parity[x 36] or
non-parity[x32].
TheP55-KV supportsOnboardtwoPCIIDEconnectorsandBIOSdetectsIDE
harddisk type automatically.
The P55-KVsupports Award Plug & Play BIOS for ISA and PCI cards. The BIOS
can be located in Flash EPROM which is a technology to easily revise/upqrade BIOS
through software.
R

2-2 P55-KV
2-2 Connectors and Jumpers
This section describes all of the connectors and jumpers built into the mainboard.
Please refer to Figure1-1(page 1-2) for the location of each connector and jumper.
1.Power LED(+)
2.N/C
3.GND
4.Keylock
5.GND
1
5
4
1.Speaker
2.N/C
3.GND
4.GND
J11 1
Power Saving LED indicator - LED ON when system is
in any saving mode
Reset Switch - Closed to restart system
Speaker - connects to the system's speaker for beeping
KeyLock - Keyboard lock switch & Power LED connector
Sleep/Resume switch: Closed to enter sleep mode
(A keystrobe or mouse movement will instantly "wake up".)
Turbo LED indicator - LED ON when higher speed is selected
IDE LED indicator - LED ON when Onboard PCI IDE
Harddisks activate
+
+
+( There is no deturbo function, thus the turbo LED is always ON.)

Hardware Design 2-3
J6 EPROMBIOSSelection
1-2 : 5V Flash EPROM.(Default)
2-3 : 12V Flash EPROM
1
5
J1 PS/2MOUSECONNECTOR
1.RED wire
2.BLUE wire
3.GREEN wire
4.NC
5.YELLOW wire
1
3
1
5
1.VCC
2.NC
3.IRRX
4.GND
5.IRTX
J10 IrDA/ASKIRCONNECTOR

2-4 P55-KV
Clock/CPU Op. J7 J8 J9 J4 J5
2-3 1-2
2-3 2-3
ON OFF
OFF OFF
OFF
OFF OFF
OFF
OFF OFF
OFF
OFF OFF
OFF
ON
ON
ON
ON
1-2 1-2
1-2 2-3
ON
ON
50/75 MHz
60/90 MHz
66/100 MHz
60/120 MHz
66/133 MHz
60/150 MHz
66/200 MHz
60/180 MHz
66/166 MHz
OFF
ON
OFF
ON
OFF
ON
OFF
IntelPentium Processor &withMMX technology
J9 J8 J7
J4
J5
1 3
6x86/L-PR120+
6x86/L-PR133+
6x86/L-PR150+
6x86/L-PR166+ 2-3 1-2
(Reserved) 6x86/L-PR200+
ON
ON
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
Cyrix/IBM 6x86/L/MXInstallation
1
3
J2 CPUVcorevoltageselection:ForPentiumProcessorwith
MMXtechnology,AMDK6,Cyrix 6x86L &6x86MX
2-3:2.8VForPentiumMMX&Cyrix6x86L(Default)
1-2:2.9VForK6-PR166/200&Cyrix6x86MX
Open : 3.2V (Reserved)
J3 CPUSelection
1-2:PentiumProcessor,AMDK5&Cyrix6x86
2-3 : Pentium Processor with MMX technology, AMD K6
, Cyrix 6x86L & 6x86MX
CPU TYPE J7 J8 J9 J4 J5
RTM
R
TM
AMDK5,K6Installation
1 3
66MHz*2 6x86MX-PR166
75MHz*2 6x86MX-PR200
60MHz * 2.5 6x86MX-PR166 2-3 2-3
OFF
OFF
OFF
OFF
OFF OFF
ON
ON
ON

Hardware Design 2-5
SIMM 2 SIMM 1 Total Size
4MB 4MB 8MB
8MB 8MB 16MB
16MB 16MB 32MB
32MB 32MB 64MB
64MB 64MB 128MB
MemoryConfigurationTable
NOTE : 1. P55-KV supports both Fast Page DRAM and EDO DRAM SIMMs, but
they cannot be used in different SIMM at the same time.
2-3 System Memory Configuration
The P55-KV supports different type of settings for the system memory. The
following table provides all possible memory combinations.
SIMM1
SIMM2
Note 1 : If the Cyrix M1(6x86) is installed on the P55-KV mainboard, one of
the two types of cooling fans(Model NO. 20750 is a normal /standard fan/
heatsink. Model NO. 20832 is a 90 degree rotated fan.) must be selected
correctly to match the regulator heatsink direction. The P55-KV requires the
use of Model NO : 20832.(Customer should request a NMB-B50 fan). Please
Contact the Cyrix CPU suppliers for the details.
Note 2 : If the Cyrix 6x86L-P200+ is installed on the P55-KV mainboard,
there is a limitation : It cannot work properly with the PCI 2.0 SCSI card,such
as Adaptec AHA-2940/3940. For instance, the system will hang up or the data
in the harddisk winn be damage. However, you may use PCI 2.1 SCSI card, such
as AHA-2940AU/UW, because it work well with the CPU.

2-6 P55-KV
2-4 Cache Memory Configuration
The second level (L2) of cache is installed in the mainboard to increase the system
performance. The P55-KV supports two types of combinations for the cache
installation. Please refer to the following configurations for the details.
U34 U37 U41
SYN.CACHE On Board
256KB 32K*32 x 2
512KB 64K*32 x 2
Size (U7,U9)
32K*32
32K*32
U9
U7
DATA SRAM
TAG SRAM
U13

Hardware Design 2-7
2-5IntegratedPCIBridge
TheP55-KV utilizesVIA82C580VPXPCIsetchipset to supportIntelPentium
Processor PCI/ISA system. The VIA 82C580VPX PCIset chipset consists of one
82C585VPXsystemcontroller(TSC),two82C587VPDataPath(TDP)devices,and
one82C586APCIISA/IDE Acceleratorbridgechip.Itprovides aninterfacewhich
translates CPU cycle into PCI bus cycle and PCI burst read/write capability. In
addition, it provides high performance PCI arbitor to support two PCI Masters,
RotatingPriorityMechanism,andHiddenArbitrationSchemeMinimizesArbitration
Overhead.
Therearefourinterruptsin eachPCIslot:INTA#,INTB#, INTC#,andINTD#.Since
the P55-KV adapts the PCI auto-configuration with the system BIOS Setup utility.
When the system is turned on after adding a PCI add-in card, the BIOS automatically
configure interrupts, DMA channels, I/O space, and other paramaters. You do not
have to configure jumpers or worry potential resource conflicts. Because PCI cards
use the same interrupt resource as ISA cards, you must specify the interrupt used by
ISA add-in cards in the BIOS Setup utility.
However, if a "Legacy card" (such as plug paddle card and cable into the ISA slot.)
ispluggedinthesystem,thefollowingmodificationsintheROMSETUPUTILITY
becomenecessary.First,youmustenter PCICONFIGURATIONSETUPutilityfrom
ROMSETUPUTILITYmainmenutosetthe"PCIIDEIRQMAPTO:ISA".
Then,youmustenterCHIPSETFEATURESSETUPUTILITYfromROMSETUP
UTILITYmainmenuandsetthe"OnboardPrimaryPCIIDE:DisabledandOnboard
SecondaryPCIIDE:Disabled."WhenyouplugthePCI/ISAIDEcardintothe
system,Youshould DisableOnboardPrimaryandSecondaryPCIIDEfrom
CHIPSETFEATURESSETUPUTILITYtoo.
you can set the system interrupt request (IRQ) on some "Legacy cards" which have
no paddle card and cable (refer to user's manual of the card) to a proper system IRQ
level (In general, the card's Primary is assigned to INTA and Secondary is assigned
to INTB). If the card is plugged into slot 1(marked PCI#1), you cannot use second
slot (marked PCI#2) because the Secondary INT signal takes INTB from the slot
(refertoPage3-12forcircuitdiagram).TheuserthenentersPCICONFIGURATION
SETUPutilityfromROMSETUPUTILITYmainmenuandsetsthe"PCIIDEIRQ
MAP TO :PCI-Slot 1" (depend on the slot # where the Legacy card is plugged).
.
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AWARD BIOS 3-1
CHAPTER 3
AWARD BIOS SETUP
Award'sROMBIOSprovidesabuilt-inSetupprogramwhichallowsusertomodifythe
basicsystemconfigurationandhardware parameters. The modified data will be stored
inabattery-backedCMOSRAMsodatawillberetainedevenwhenthepoweristurned
off.Ingeneral,theinformationsavedintheCMOSRAMstaysunchangedunlessthere
isa configuration change in the system, such as a hard drive replacement or a device is
added.
ItispossiblefortheCMOS batterytofail,thiswillcausedataloseinCMOSonly.Ifthis
does happen you will need to reconfigure your configuration parameter.
To enter Setup Propgram
Poweronthecomputerandpress<Del>keyimmediately,thiswillbringyouintoBIOS
CMOSSETUPUTILITY.
ROMPCI/ISABIOS(2A5LDPAD)
CMOSSETUPUTILITY
AWARDSOFTWARE,INC.
STANDARD CMOS SETUP SUPERVISOR PASSWORD
BIOS FEATURES SETUP USER PASSWORD
CHIPSET FEATURES SETUP IDE HDD AUTO DETECTION
POWER MANAGEMENT SETUP HDD LOW LEVEL FORMAT
PNP/PCI CONFIGURATION SAVE & EXIT SETUP
INTEGRATED PERIPHERALS EXIT WITHOUT SAVING
LOAD SETUP DEFAULTS
ESC : QUIT : SELECT ITEM
F10 : Save & Exit Setup (Shift)F2 : Change Color
Time, Date, Hard Disk Type...
Figure 3-1 CMOS SETUP UTILITY
The menu displays all the major selection items. Select the item you need to
reconfigure. The selection is made by moving cursor (press any direction key ) to the
item and press the 'Enter' key. An on-line help message is displayed at the bottom of
the screen as the cursor is moving to various items which provides a better under-
standing of each function. When a selection is made, the menu of selected item will
appear so the user can modify associated configuration parameters.