Asus P5WD2 Premium: DDR2-1066 and the Promise of 955x SLI
by Wesley Fink on May 11, 2005 12:05 AM EST- Posted in
- Motherboards
Asus P5WD2 Premium: Overclocking
FSB Overclocking Results
| Front Side Bus Overclocking Testbed | |
| Processor: | Pentium 4 Prescott LGA 775 560 ES (2.8GHz-3.6GHz) |
| CPU Voltage: | 1.425V (1.3875V default) |
| Cooling: | Thermaltake Jungle 502 |
| Power Supply: | OCZ Power Stream 600 |
| Maximum CPU OverClock: | 227x18 (4086MHz) +14% |
| Maximum FSB OC: | 291FSB x 14 (4074MHz) +46% |
Asus has fully implemented Speedstep in their recent BIOS updates for Intel Socket 775 motherboards, so the OC results are a lot more than academic. Speedstep means that the stock multiplier and a 14X multiplier will be available on all Prescott CPUs, opening new options for overclocking regular Intel Prescott chips.
With a stock multiplier, the P5WD2 reached an overclock of 227x18 or 4086MHz. This matches the highest frequency ever reached with this 3.6GHz Prescott, which was with an Asus 915 chipset board. The 46% FSB overclock achieved at the 14X multiplier is the highest OC that we have seen with a SATA drive on a Socket T board. The previous Socket T record on this CPU was 279FSB.
While we were able to reach these OC levels above 4GHz with the Thermaltake HSF, the long-term stability with air cooling at these speeds is very suspect. After running a few tests, the system began throttling - alternating between stock speed and reduced speed due to overheating. There is no doubt that the CPU can do these speeds, but you will have to provide better cooling if you plan to run much above 3.8GHz. Others have demonstrated even higher Prescott overclocks and stable operation with water cooling and phase-change cooling.
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chawkfan2002 - Thursday, June 2, 2005 - link
In reading your article you indicate the “Corsair CM2X512A-5400UL could reach DDR2-1066” I am trying to determine how the memory speed is actually DDR2-1066? Your illustration indicates the FSB at 1068MHz (1066MHz) do you have any screenshot that shows the memory speed at 1066MHz? If the FSB is at 1066MHz then the memory bus is only at 534MHz (FSB 1066/4=266 actual speed… Memory bus 266x2=533 Double Data Rate) I have tried the FSB at 266 and manually changed the memory speed to DDR2-800, Memtest+ still shows actual speed at 534MHzAny information you can provide on how to achieve the 1066MHz actual memory speed will be most graciously accepted.
Makyla - Friday, May 20, 2005 - link
pwnedElFenix - Monday, May 16, 2005 - link
kristopher:just because a lot of people got it wrong doesn't mean it's right. the first definition is the only proper one. that is like saying that because it is popular, on the internet, to say "he should of done that" means that 'of' is a proper substitute for 'have.'
as for heat sink, much of that is the same. i suggest you take a look here:
http://dictionary.reference.com/search?q=heatsink
ElFenix - Monday, May 16, 2005 - link
""a fan doesn't actually cool anything, it just pushes air around"Try disabling the fans in your rig and A/C, take temp readings before and after and get back with us. Moving same temp to same temp isn't cooling. Moving cooler air (or water or other) to something that is hotter (chip, compressor, radiator, etc) most definitely actively cools it."
no, the conducting of heat from the radiator to the air through natural processes cools it. an air conditioner actually moves the heat against the temperature gradient. a fan cannot do that. a fan, again, isn't actually cooling anything. just because there is a moving part moving the air at a faster than natural current does not mean that the cooling is active. it is not. you're still relying on the normal radiator-air interaction. now a peltier actually moves the heat. that is active cooling. a fan only passively cools.
Viditor - Thursday, May 12, 2005 - link
How about this boardhttp://www.rackmountpro.com/productpage.php?prodid...
SUPER H8DCE Serverboard ( OEM White Box ) for System only
Dual AMD Opteron 200 series Processor supported-940 pin ZIF Socket
nVIDIA nForce Pro 2200 & 2050 Chipset
Up to16/16/32 GB of ECC Registered DDR 400/333/266 SDRAM
nVIDIA nForce Pro 2200 & 2050 SATA II controller for 8 SATA ports
Dual nVIDIA nForce Pro 2200 & 2050 Gigabit Ethernet
AC'97 audio CODEC high quality 6-channel sound
2 X PCI-Express x16 + 2 X PCI-Express x4 + 3 X 32 bit PCI
Dual dual Opterons with SLI...
Darth Farter - Thursday, May 12, 2005 - link
Wesley Fink,do you know at what msrp Intel puts them (955/945)?
also for the nf4(&ati) dual core compatible boards?
Wesley Fink - Wednesday, May 11, 2005 - link
#26 - As we said in the review, we were able to enable SLI on the 955x using the old, almost unavailable nVidia 66.75 drivers. However, none of our SLI-enabled games worked properly. It was our original intention to compare the SLI performance (and we have P5ND2-SLI benchmarks), but the "Semi-SLI" was not completely working. Until the P5WD2 SLI works, and works with readily available drivers, the fact there are 2 x16 slots on the Asus 955x is academic for SLI - a promise for the future.Capt Caveman - Wednesday, May 11, 2005 - link
Small Win. If you go to Asus's website, they have updated it. They now list two editions of the P5WD2 Premium board and list the Wifi-TV Card as either bundled or optional. Of course, they have yet to email me back. Or offer the Wifi-TV Card.http://www.asus.com/products.aspx?l...493&mode...
niz - Wednesday, May 11, 2005 - link
Its a shame that they didn't bother to benchmark comparative SLI performance between the two motherboards.I'd like to know whether the diffrerence between the PciE slot timings (x8/x8 and x16/x2-4) really makes any difference to SLI performance.
HardwareD00d - Wednesday, May 11, 2005 - link
They will probably be able to reach DDR2-4096 speeds pretty soon by setting timings to 20-20-20-60 and hooking up a 9v battery to it.