Asus A8N32-SLI Deluxe: NVIDIA Dual x16 for the Athlon 64
by Wesley Fink on November 6, 2005 9:00 AM EST- Posted in
- Motherboards
Overclocking: Asus A8N32-SLI Deluxe
The Asus A8N32-SLI set a new stock speed overclock record with this CPU at 246. This is likely a result of the excellent 8-phase power regulation of the Asus board, which greatly contributes to cool operation – even when pushed hard.
Lowering the multiplier to reach the highest CPU clock also yielded excellent performance – at 310 among the highest that we have tested. This Asus has an outstanding assortment of memory timing and voltage adjustments for overclocking, but they are somewhat unfamiliar. Given more time with this board, it is likely that we could achieve even higher reduced multiplier timings as we become more familiar with the memory adjustments. In general, the HyperTransport performs well when left on Auto, letting the board handle the HTT adjustments.
Other top overclockers like the DFI nForce4 series have extensive adjustments for tRef and Driving Strength. Best overclocking performance is often achieved on the DFI by reducing DDR Driving Strength with Samsung TCCD. The Asus has more limited Driving Strength and tRef adjustments, but it offers an extremely wide range of DDR Skew adjustments, which are missing from many enthusiast boards. The point is that Asus has taken a little different approach to controls, and it will take time to learn what works best with the available memories.
Asus also offers full Auto settings for those who do not wish to delve deeply into the BIOS for overclocking. There are even Auto Overclocking options in the BIOS where the board will set all parameters for best overclocking. These work well, but like other Auto OC options, the Asus can be pushed furthest with intelligent manual overclocking.
We were really unprepared for what a great overclocker the Asus turned out to be. The dual x16 is about graphics, and we really didn’t expect the excellent overclocking that this board delivers. It should be pointed out, however, that best overclocks are achieved with a single video card. While we reached 310x9 with a single 7800GTX, the best OC that we could achieve with a 7800GTX SLI setup was about 275.
| Asus A8N32-SLI Deluxe Overclocking Testbed | |
| Processor: | Athlon 64 4000+ (2.4GHz, 1MB Cache) |
| CPU Voltage: | 1.45V (default 1.40V) |
| Cooling: | Thermaltake Silent Boost K8 Heatsink/Fan |
| Power Supply: | OCZ Power Stream 520W |
| Memory: | OCZ PC3200 Platinum Rev. 2 (Samsung TCCD Memory Chips) |
| Hard Drive: | Seagate 120GB 7200RPM SATA 8MB Cache |
| Maximum OC: (Standard Ratio) |
246x12 (Auto HT, 2.5-3-3-7) 2952MHz (+23%) |
| Maximum FSB: (Lower Ratio) |
310 x 9 (3x HT, 1T) (2790MHz, 2 DIMMs in DC mode) (+55% Bus Overclock) |
The Asus A8N32-SLI set a new stock speed overclock record with this CPU at 246. This is likely a result of the excellent 8-phase power regulation of the Asus board, which greatly contributes to cool operation – even when pushed hard.
Lowering the multiplier to reach the highest CPU clock also yielded excellent performance – at 310 among the highest that we have tested. This Asus has an outstanding assortment of memory timing and voltage adjustments for overclocking, but they are somewhat unfamiliar. Given more time with this board, it is likely that we could achieve even higher reduced multiplier timings as we become more familiar with the memory adjustments. In general, the HyperTransport performs well when left on Auto, letting the board handle the HTT adjustments.
Other top overclockers like the DFI nForce4 series have extensive adjustments for tRef and Driving Strength. Best overclocking performance is often achieved on the DFI by reducing DDR Driving Strength with Samsung TCCD. The Asus has more limited Driving Strength and tRef adjustments, but it offers an extremely wide range of DDR Skew adjustments, which are missing from many enthusiast boards. The point is that Asus has taken a little different approach to controls, and it will take time to learn what works best with the available memories.
Asus also offers full Auto settings for those who do not wish to delve deeply into the BIOS for overclocking. There are even Auto Overclocking options in the BIOS where the board will set all parameters for best overclocking. These work well, but like other Auto OC options, the Asus can be pushed furthest with intelligent manual overclocking.
We were really unprepared for what a great overclocker the Asus turned out to be. The dual x16 is about graphics, and we really didn’t expect the excellent overclocking that this board delivers. It should be pointed out, however, that best overclocks are achieved with a single video card. While we reached 310x9 with a single 7800GTX, the best OC that we could achieve with a 7800GTX SLI setup was about 275.
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Phantronius - Friday, November 4, 2005 - link
Holy shit!!! $250 for one of these boards via newegg!!????Capt Caveman - Friday, November 4, 2005 - link
Newegg = ScreweggMwave has it for $195 in stock. And Mwave will call you to let you know that it shipped.
Zebo - Friday, November 4, 2005 - link
Mwave rocks I'm not even sure why people screw around with newegg anymore. I've ordered my last six or so mobo+cpu combos from mwave always cheapest and a free something... game.. app..etc.Asus appears to be back after lackluster non-existant NF3 and recent NF4 boards! I may get this and I don't even run Sli.. $200 is a little hard to swallow with DFI ultra for $120 but I like silent setup.
Jedi2155 - Friday, November 4, 2005 - link
Wat about Monarch?bob661 - Friday, November 4, 2005 - link
Monarch has it for $249 last I checked. I wouldn't buy from Mwave. Like the other dude said their customer service leaves a LOT to be desired. I'll buy from Newegg. Customer service is top notch and their shipping is super fast. I'll also buy from ZZF. Their customer is also pretty good although shipping a bit slower than Newegg.Leper Messiah - Friday, November 4, 2005 - link
See, I've had both good and bad expierences with mwave, their customer service is crappy (can't understand asians who have been speaking english for a month tops.) but their prices are good. Too bad newegg gouges on Fedex shipping now.BTW, whats going on with the forums? Haven't been able to log in for a while...
xsilver - Monday, November 7, 2005 - link
thats a bit racist isnt it?they have a totally different pronounciation format in their language so they never get the english accent totally right
conversly, even if you learned chinese for 20years your accent would still sound funny
sxr7171 - Friday, November 4, 2005 - link
When SLI was first introduced last year, we were told that 8x was more than enough bandwidth and that currently video cards can't even come close to saturating that bus. Now we have all this dual x16 hype - for what? Were they lying then or are they lying now? I guess it's good for future-proofing and progress is good, the consumer must be aware of it.ElFenix - Friday, November 4, 2005 - link
if they're claiming a goodly reduction in energy usage due to the 8 phase design i'd like to see if it bears out.SnakeJG - Friday, November 4, 2005 - link
I would really love to see you guys test this out by comparing the power draw of different SLI systems, and seeing if the 8-phase design actually saves noticable power.