915 Motherboard Roundup: Socket 775 for the Rest of Us
by Wesley Fink on December 7, 2004 12:25 AM EST- Posted in
- Motherboards
Asus P5GD2 Premium: Overclocking and Stress Testing
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 520 |
| Maximum CPU OverClock: | 227x18 (4086MHz) +14% |
| Maximum FSB OC: | 279FSB x 14 (+40%) |
Asus has fully implemented Speedstep in their recent BIOS updates for the P5GD2 Premium, so the OC results are a lot more than academic - at least on this board. 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.
You will also be extremely pleased with with the overclocking ability of the P5GD2. The stock multiplier overclock of 227x18 or 4086MHz is the highest frequency ever reached with this 3.6GHz Prescott. The 40% FSB overclock achieved at the 14X multiplier is also the highest OC that we have seen with a SATA drive on a Socket T board. Asus has implemented their magic in the Auto setting for PCI Express and this is the setting used for these overclocks. If you are interested in how Asus manages to reach such an outstanding overclock with the P5GD2, please check Breaking Intel's Overclock Lock: The REAL Story.
The fact that Asus manages a higher OC than more recognized OC boards like DFI and Abit is testament to the solid engineering that went into the P5GD2 design. Stack Cool and the other overclocking enhancements on the P5GD2 Premium apparently do a good job of extending the OC range on the Asus.
Memory Stress Test Results:
Memory stress tests look at the ability of the Asus P5GD2 premium to operate at the officially supported memory frequency (533MHz DDR2), at the best performing memory timings that Crucial/Micron PC2-4300U will support. Memory stress testing was conducted by running DDR2 at 533MHz (stock 3:4 ratio) with 2 DIMM slots operating in Dual-Channel mode.| Stable DDR533 Timings - 2 DIMMs (2/4 DIMMs - 1 Dual-Channel Bank) |
|
| Clock Speed: | 266MHz |
| Timing Mode: | 3:4 (200:266 - Default) |
| CAS Latency: | 3.0 |
| Bank Interleave: | Auto |
| RAS to CAS Delay: | 3 |
| RAS Precharge: | 3 |
| Cycle Time (tRAS): | 10* |
| Command Rate: | N/A |
The Asus P5GD2 Premium was completely stable with 2 DDR2 modules in Dual-Channel at the settings of 3-3-3-10 at 1.8V default voltage. This matches the best timings that all the motherboards in this roundup were able to achieve with DDR2 memory. 3-3-3 is also faster than the 4-4-4 timings specified for the Crucial/Micron DDR2 modules used for these benchmarks.
Filling all four available memory slots is more strenuous on the memory subsystem than testing 2 DDR2 modules on a motherboard.
| Stable DDR533 Timings - 4 DIMMs (4/4 DIMMs - 2 Dual-Channel Banks) |
|
| Clock Speed: | 266MHz |
| Timing Mode: | N/A |
| CAS Latency: | 4.0 |
| Bank Interleave: | N/A |
| RAS to CAS Delay: | 3.0 |
| RAS Precharge: | 10T* |
| Precharge Delay: | 3.0 |
| Command Rate: | N/A |
As we first saw on the Abit, 4 DDR2 DIMMs are not stable at CAS 3 as 2 DIMMs are. Once again, we required 4-3-3 timings when using 4 DDR2 DIMMs, though 4-3-3 worked fine at default voltage. Perhaps more voltage could improve stability at 3-3-3 with 4 DIMMs. We were able to achieve the stability at 2.0V (from default 1.8V) to complete Super Pi and Aquamark 3 at the 3-3-3 timings with 4 DIMMs.
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krelian - Wednesday, December 8, 2004 - link
I been a Intel user since the first Pentium 3 came out now I have a Intel P4 3.0C I refused to spend more money on things I had already bought so I stayed with the 478 socket, seeing as Intel wants me to move to an expensive platform, I say I'll ditch Intel head with the AMD crowd, I'm sure I won't be the only one, maybe legions of intel campers will leave.ChineseDemocracyGNR - Tuesday, December 7, 2004 - link
About the config I put together in the previous post; does anyone know if the overclock lock on the 915P chipsets apply to lower FSB's too? Could I overclock the 133MHz Celeron D to 200MHz on any 915P motherboard?ChineseDemocracyGNR - Tuesday, December 7, 2004 - link
The 915P chipset provides good value for the money. For example:ECS 915P-A $79
Intel Celeron D 325J 2.53GHz $88
Albatron GeForce 6600 128MB $120.50
or
Albatron GeForce 6600GT 128MB $190.50
(newegg prices)
The processor can be overclocked to 3.6+GHz very easily, much like the Athlon Mobiles.
That makes a good budget gaming rig, better than anything you could put together with an AMD processor for the same money. So, at least in my opinion, AMD has a better mainstream/high-end processor, and Intel wins the value segment. Who would say?
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I have now read the entire article, and oh boy! Though I prefer to read about socket 754/939 motherboards, this has to be the best motherboard roundup I ever read. Ever. Well done.
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#22,
thank your fixing it. The typo I wrote about on page 10:
"The fact that Asus manages a higher OC than more recognized OC boards like DFI and Asus "
Don't you mean ABIT in the last word there?
ocyl - Tuesday, December 7, 2004 - link
Wesley > Thank you for paying attention to the audio features/components of these motherboards, particularly Dolby Digital Live :)Wesley Fink - Tuesday, December 7, 2004 - link
#21 - The Foxconn results have been corrected on p.20. Thank you for bringing it to our attention.ChineseDemocracyGNR - Tuesday, December 7, 2004 - link
A few typos:"The fact that Asus manages a higher OC than more recognized OC boards like DFI and Asus "
page 10.
On page 20, the "Front Side Bus Overclocking Testbed" table is probably wrong.
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Good article.
LeadFrog - Tuesday, December 7, 2004 - link
Why does only the socket 915 get a 16mb cache Hard Drive?danidentity - Tuesday, December 7, 2004 - link
Wes, I said thanks before but I'll say it again, great roundup. We appreciate your hard work, always.danidentity - Tuesday, December 7, 2004 - link
Live -The P5GD2 is expensive compared to most boards, but it includes a ton of stuff, like 8 SATA ports, dual gigabit LAN, on-board 802.11g/b, and on-board hi-def audio with Dolby Digital Live (realtime encoding, like SoundStorm).
Most 915P boards aren't as close to as expensive as the Asus. The Abit AG8 is ~ $130, equal or cheaper in price than the K8N Neo2.
Wesley Fink - Tuesday, December 7, 2004 - link
#16 - After I did the price analysis today I changed "outstanding value" to "good value". Thanks for the comment about the review being good reading. It is appreciated as a huge amount of work went into this roundup.