Nvidia 680i Motherboard Comparison Part 2


The PN2 SLI2+ provides all the overclocking controls mandated by its market with frequency ranges at least 50% beyond practical limits and high-enough maximum voltage limits to exceed safe practices.

BIOS Frequency and Voltage settings (for overclocking)
FSB Frequency 100 - 625 MHz (1 MHz)
Clock Multiplier Adjustment Yes
DRAM Frequency 400-1400 MHz Data Rate
PCIe Clock 100-200 MHz (1 MHz)
SPP-MCP HT Link Clock 200-500 MHz (1 MHz)
CPU Vcore 0.50000 - 1.80000 Volts (0.00625 Volts)
CPU FSB Voltage 1.20 - 1.50 Volts (0.10 Volts)
Northbridge (SPP) 1.20 - 1.55 Volts (0.05 Volts)
Southbridge (MCP) 1.500 - 1.750 Volts (0.025 Volts)
Chipset Link Voltage 1.20 - 1.55 Volts (0.05 Volts)
DRAM Voltage 1.800 - 2.500 Volts (0.025 Volts)
CAS Latency Range
tCAS : 1-6 ; tRCD : 1-7 ; tRP : 1-7 ; tRAS : 1-31 ; Command Rate : 1T/2T

The early-stepping E6700 used in testing has never been a stellar overclocker, usually reaching 3460 MHz at a 346 MHz bus clock (FSB 1384) and it stock 10x multiplier, with 1.50 volts, applied to its core. The PN2 SLI2+ reached the same CPU clock limit, but dropping the CPU clock multiplier to 6x only got bus speed up to a disappointing 375 MHz bus (FSB 1500), where an increase to 376 MHz wouldn’t boot.


Documentation & Software Quick Setup Guide
Motherboard Manual
Motherboard Driver CD
ECS Freeware Value Pack CD
Hardware 1x 40-conductor ATA-33 cable
1x 80-conductor Ultra ATA cable
6x SATA Data Cable
1x Floppy Cable
1x Chipset Cooling Fan
1x I/O Panel Shield
1x SLI Bridge
1x Network Cable (Cross-over)
1x IEEE-1394+USB Slot Panel (1+2-ports)
1x Slot Panel to 3.5" Drive Bay Adapter

ECS attempts to maximize value in its accessory pack by including freeware/shareware applications that cost them nothing in licensing fees may prove useful to the end user. Cabling is simple but complete, with the full set of Serial ATA, Ultra ATA and floppy drive cables, but ECS again adds value and convenience with a low-cost crossover network cable.

Nvidia’s reference-board Northbridge fan and SLI bridge again meet expectations, but ECS also adds a front-panel bay adapter for its IEEE-1394 FireWire and USB breakout bracket. Inexpensive but thoughtful add-ins such as this are hallmarks of ECS’ drive for customer satisfaction.

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