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Epox 5NVA+ SLI NF4 Intel Edition Motherboard Review

Epox 5NVA+ SLI NF4 Intel Edition Motherboard Review - PCSTATS
Abstract: The four DIMM slots can accommodate up to 8GB of unbuffered non ECC DDR2 memory running at 400/533/667 MHz, while operating in dual channel mode with 1.8V.
 80% Rating:   
Filed under: Motherboards Published:  Author: 
External Mfg. Website: Epox Sep 12 2005   Colin Sun  
Home > Reviews > Motherboards > Epox 5NVA+ SLI

More details on the motherboard

Modern chipsets like nVIDIA's nForce4 SLI generate a fair amount of heat, and dealing with this can become difficult when precious space is needed for videocards and other expansion peripherals.

Epox have installed a medium sized heatsink on the MCP04 Southbridge, and a rather large active cooler on the NF4 SLI Northbridge.

As you can see the fan is in a different position and we think this is a good idea. Traditional fans have a dead spot of air just under the motor and that is exactly where the die of the chipset is. This way, the fan blows directly on the hot spot which helps remove air more efficiently. Both heatsinks can be removed and replaced with something else if you like, just make sure it fits properly. There is plenty of space around the NF4 SLI Northbridge however only two mounting loops. Space is tight around the MCP04 Southbridge, and in our experience the stock heatsink does a decent job, so it does not need to be replaced.

To the right of the first DIMM slot is an eight LED memory indicator, each LED represents one DRAM section on the memory. The blinking lights not only look cool, it also works quite well for troubleshooting processes. If your computer seems like it has locked up, just look at the activity LEDs and if it is still moving you should be okay.

Overall, the Epox 5NVA+ SLI motherboard is quite easy to use and I have no real complaints about the board. I guess if I had to be picky, I do not like the location of the floppy drive connector since the cable will have to wrap around the other system components and Port 80 diagnostics card... but that's not much of a complaint realistically.

Overclocking the 5NVA+ SLI

Overclocking Results:
Stock Max. OC
Motherboard Speed: 200 MHz

247 MHz

If you're new to Overclocking and not sure what to do, check out these two excellent Guides for some pointers:
Overclocking the CPU and Memory
Overclocking the Videocard
Epox has a strong tradition in overclocking and its boards usually perform quite well. With this in mind, I was expecting some nice numbers from the 5NVA+ SLI. Before starting to overclock the motherboard though, I first lowered the memory speed to run in sync with the FSB. This will lower performance, but we are only interested in testing the top speed of the actual motherboard itself.

The Nvidia nForce4 SLI Intel Edition chipset increase the bus speed instead of the FSB, so this makes overclocking slightly more tedious. Starting at 800 MHz I increased the bus speed 40 MHz at a time, that equals to 10 MHz FSB since the P4 bus is quad pumped.

The Epox 5NVA+ SLI was up to the overclocking challenge, but we hit the first snag at 10% overclock or 880 MHz. At this speed, the motherboard had problems POSTing and actually gave us a C3 error on the Port 80 display. Increasing the chipset voltage from 1.4V to 1.6V solved that, and we continued upwards. At 960 MHz the motherboard again flaked out and so did the Pentium D 840 processor. Increasing the chipset voltage to 1.7V and CPU to 1.45V fixed the booting/BSOD issues.

In the end we settled at 988 MHz, anything higher and I could not safely run through every benchmark without crashing. A speed of 988 MHz equals 247 MHz FSB, and that is a pretty decent overclock considering everything is stock and the CPU is cooled with a standard heatsink.

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Contents of Article: Epox 5NVA+ SLI
 Pg 1.  Epox 5NVA+ SLI NF4 Intel Edition Motherboard Review
 Pg 2.  — More details on the motherboard
 Pg 3.  The Epox BIOS
 Pg 4.  Benchmarks: SYSmark2004
 Pg 5.  Benchmarks: Winstone 2004, Winbench 99
 Pg 6.  Benchmarks: SiSoft Sandra, Super Pi
 Pg 7.  Benchmarks: PCMark04, PCMark05
 Pg 8.  Benchmarks: 3DMark2001, 3DMark05
 Pg 9.  Benchmarks: Comanche 4, X2: The Threat
 Pg 10.  Benchmarks: UT2003, UT2004
 Pg 11.  Benchmarks: Doom 3 and Conclusions...

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