Versions: 1.0

Model: P5VX-Be

Answer : ECS P5VX-Be has several kinds of features of original Intel 430VX PCIset and we implement more advanced features on P5VX-Be M/B. Here is the table for the features list

Answer : P5VX-Be can support the single voltage or power split Pentium series CPU at host bus clock 50MHz, 60MHz, and 66MHz for 3V technology. These CPUs include full series Pentium or compatible CPU including Intel Pentium 100/120/133/150/166/200 MHz, Pentium Processor with Mmx Technology 166/200MHz, Cyrix/IBM 6x86/6x86L P120+/P133+/P150+/P166+, and AMD K5 PR100/PR120/PR133. P5VX-Be

Answer: Intel Pentium Processor with MMx Technology (P55C) CPU, Cyrix 6x86L, future Cyrix M2, and AMD K6 use high integrated VLSI technology which needs low voltage for internal processing of CPU chip. For this reason, the supply of CPU voltage will separate to 2 kinds of voltage : 3.3V for I/O processing of CPU and 2.5, 2.8 or 2.9V for internal core processing of CPU. M/B which provides socket 7 may reserve the power split circuit or VRM headers for dual voltage support. P5VX-Be has already got the approval of Intel BOX Pentium Processor test. When the CPUs emerge, they can plug in and run on P5VX-Be.

Answer: Yes, P5VX-Be support full Cyrix 6x86 or 6x86L CPU P120+, P133+, P150+ and P166+. With greater heatsink of voltage regulator, P5VX-Be solves the thermal problem of Cyrix P150+/P166+ CPU, and with separate regulator current output, P5VX-Be can offer the high current request of Cyrix P166+ CPU.

Answer :. P5VX-Be includes Intel 430VX PCIset : 208-pin QFP System Controller (TVX 82437VX), two 100-pin QFP Data Paths(TDX, 82438VX), and 208-pin QFP PCI ISA IDE Xcelerator ( PIIX3 82371SB). Manufacture option of 3D SRS aduio chip - Crystal 4237B, gives users most advanced 3D sound enjoyment.

Answer :. Intel 430VX PCIset has main functions as follows:

• PCI 2.1 Compliant
• Integrated DRAM controller

• 64-bit Path to Memory
• 4Mytes to 128 Mbytes of Main memory
• Enhanced EDO/Fast page mode DRAM Support (6-2-2-2 reads at 66Mhz)
• 4 RAS Lines Available
• Support for Symmetrical and Asymmetrical DRAMs
• Supports SDRAM (x-1-1-1 at 66MHz)
• 5 Qword Deep Buffer for 3-1-1-1 Posted Writes, and Dword and Burst Merging
• Supports Mixed memory Technologies(EDO/SPM/SDRAM)
• Integrated Programmable-Strength MA Buffers, External Buffers on MA Lines are Not Required

• Integrated L2 cache controller

• Direct Mapped and Write Back Organization
• Supports 256KB or 512KB Pipelined Burst SRAM(PBSRAM)
• Cache Hit Read/Write Cycle Timings at 3-1-1-1 with Burst SRAM
• Back-to-back Read/Write Cycles at 3-1-1-1-1-1-1-1

• Fully synchronous, Minimum Latency 25/30/33 MHz PCI interface

• Five PCI Bus Maters including 4 PCI slots and one for PIIX3.
• Converts Back-to-Back sequential PCI Memory Writes to CPI Burst Writes
• CPU-to-PCI Memory Write Posting with 5 Dword deep Buffers
• PCI-to-DRAM Read Presetting 5 Qwords
• PCI-to-DRAM Posting 18 Dwords
• Multi-Transaction Timer to support multiple short PCI transactions

• Supports the Universal Serial Bus(USB) at B0 version of PIIX3

Answer: P5VX-Be provides 4 72-pin SIMM(for EDO/SPM) socket and one 168-pin DIMM socket(for unbuffered SDRAM). P5VX-Be supports 64/72-bit data path SIMM with FPM(fast page mode) or EDO(Extended Data Out), 1M, 2M, 4M symmetrical or asymmetrical SIMM, or 16MB symmetrical SIMM, or upto 32MB 64-bit DIMM with unbuffered SDRAM, and 3.3V EDO.

Answer: SDRAM is clock-Synchronous DRAM. In SDRAMs. Control signals (CAS, RAS, WE) are put in synchronization with the clock rising edge. I/O transactions are possible on every clock cycle. Thus P5VX-Be can access data from SDRAM in cycle time x-1-1-1 at 66MHz. Thus using SDRAM can boost up performance of system by increasing about 40% in effective bandwidth over EDO.

Answer: There are several advantages of SDRAM. Please read the following items as key advantages:

1. Performance boom up - P5VX-Be using SDRAM can boost up performance of system by increasing about 40% in effective bandwidth over EDO.

2. JEDEC Standard - All PC M/B uses the same standard of SDRAM in DIMM format. Not a prototype.

3. Multiple sources - over 10 suppliers.

4. Main Memory solution for Pentium or Next Gen. - SDRAM can keep up with system frequency increment.

Answer: Refer the following table of the difference between SIMM and DIMM sockets on P5VX-Be M/B.

Answer : P5VX-Be support L2 PBSRAM cache or Mcache on board.. The combination of cache size lists as follows:

Answer : Yes, the PCI interface is 2.1 compliant and supports up to 4 PCI bus master in addition to the PIIX3 bus master requests. The PCI-to-DRAM interface can reach a 112 MB/sec transfer rate for reads and 121 MB/sec for writes.

Answer : Yes, P5VX-Be using Intel PIIX3 chip supports USB function. We had verified several kinds of USB perepherials to prove our reliability.

Answer : Yes, P5VX-Be has passed the CE test performed by the EMV lab. in ECS/GmbH.

Answer : P5VX-Be has performed tests including Intel IBPP(Intel Box Pentium Processor) test, CE test and several compatibility and relibility tests. Windows 95 logo certification is in the process of applying. Please see our information note.

Answer : Because most of users require their PC with multimedia solution. Build-in SRS 3D Crystal audio chip on P5VX-Be gives users the most price/performance value than that users buying a sound card to install on their PC M/B.