ASUS P5B: New BIOS Adds Unlocking & Improved Overclocking
by Wesley Fink on August 24, 2006 3:00 PM EST- Posted in
- Motherboards
Our Thoughts
First, we should note that certain Gigabyte P965 boards also allow downward unlocks with the latest BIOS releases. ASUS joins them in offering this feature, and they have broken new ground with the 0507 BIOS for the P5B Deluxe. The ability to specify multipliers - even if it's only downward unlocked - is so significant that every other manufacturer will have to follow suit or lose market share to the two motherboard giants.
At present, every Core 2 Duo chip we tried unlocked down (this included both B1 and B2 steppings); however, none of our samples unlocked both up and down. ASUS tells us that many Core 2 Duo chips also unlock upwards, but the upper limit is around a 14X multiplier with those chips that do unlock in both directions. If true, we're certain those chips that can unlock completely will be quickly figured out by enthusiasts and those models and steppings will become the most highly desired Core 2 Duo chips.
Certainly this new BIOS makes the ASUS P5B a much more desirable motherboard. We do need to remind readers, however, that we have generally reached even higher overclocks on the 975X chipset when compared 1:1 with the 965P. ASUS has told us they are not finished with this "Conroe Unlock" feature and that they are working on BIOS revisions to also bring Core 2 Duo unlock to 975X chipset motherboards. We have seen hardware modifications to the Intel 975 BadAxe that allow unlocking, and it would be great if ASUS can accomplish the same with a simple 975 BIOS upgrade, as they have on the P5B Deluxe.
With innovations like this ASUS BIOS, the Intel Core 2 Duo processor is gaining features that make it even more desirable in today's market. To summarize our findings, below are the highest overclocks we could achieve at each ratio with the tested processors:
Those interested in getting the most out of their high-performance DDR2 will be very happy with the unlocking feature. It allows options like the running the memory at 1:1 at DDR2-800 and 3-3-3 timings as we have done in this screen capture of a 9x400 overclock on an E6700 with memory set at the DDR2-533 ratio.
ASUS has earned our thanks for making the 965P chipset worth considering again. With overclocks up to 532 in our testing, with multipliers settable to x6 on all tested chips, and with multipliers purportedly also unlocked at the top on some formerly locked Conroe chips this BIOS upgrade has to be considered a must for any ASUS P5B Deluxe owner. For those considering a new Conroe board, the already desirable P5B has just moved to the head of the 965P class. The only feature missing now is support for CrossFire video configurations, which remains an advantage of the 975X for gaming enthusiasts.
First, we should note that certain Gigabyte P965 boards also allow downward unlocks with the latest BIOS releases. ASUS joins them in offering this feature, and they have broken new ground with the 0507 BIOS for the P5B Deluxe. The ability to specify multipliers - even if it's only downward unlocked - is so significant that every other manufacturer will have to follow suit or lose market share to the two motherboard giants.
At present, every Core 2 Duo chip we tried unlocked down (this included both B1 and B2 steppings); however, none of our samples unlocked both up and down. ASUS tells us that many Core 2 Duo chips also unlock upwards, but the upper limit is around a 14X multiplier with those chips that do unlock in both directions. If true, we're certain those chips that can unlock completely will be quickly figured out by enthusiasts and those models and steppings will become the most highly desired Core 2 Duo chips.
Certainly this new BIOS makes the ASUS P5B a much more desirable motherboard. We do need to remind readers, however, that we have generally reached even higher overclocks on the 975X chipset when compared 1:1 with the 965P. ASUS has told us they are not finished with this "Conroe Unlock" feature and that they are working on BIOS revisions to also bring Core 2 Duo unlock to 975X chipset motherboards. We have seen hardware modifications to the Intel 975 BadAxe that allow unlocking, and it would be great if ASUS can accomplish the same with a simple 975 BIOS upgrade, as they have on the P5B Deluxe.
With innovations like this ASUS BIOS, the Intel Core 2 Duo processor is gaining features that make it even more desirable in today's market. To summarize our findings, below are the highest overclocks we could achieve at each ratio with the tested processors:
| Core 2 Overclocking | ||||||
| CPU | Stock Speed | X10 | X9 | X8 | X7 | X6 |
| Intel Core 2 Duo E6700 | 2.66GHz | 360 3.6GHz |
400 3.6GHz |
440 3.52GHz |
494 3.46GHz |
494 2.96GHz |
| Intel Core 2 Duo E6600 | 2.40GHz | - | 402 3.62GHz |
445 3.56GHz |
495 3.47GHz |
495 2.97GHz |
| Intel Core 2 Duo E6400 | 2.13GHz | - | - | 445 3.56GHz |
511 3.58GHz |
514 3.08GHz |
| Intel Core 2 Duo E6300 | 1.86GHz | - | - | - | 525 3.68GHz |
532 3.19GHz |
Those interested in getting the most out of their high-performance DDR2 will be very happy with the unlocking feature. It allows options like the running the memory at 1:1 at DDR2-800 and 3-3-3 timings as we have done in this screen capture of a 9x400 overclock on an E6700 with memory set at the DDR2-533 ratio.
ASUS has earned our thanks for making the 965P chipset worth considering again. With overclocks up to 532 in our testing, with multipliers settable to x6 on all tested chips, and with multipliers purportedly also unlocked at the top on some formerly locked Conroe chips this BIOS upgrade has to be considered a must for any ASUS P5B Deluxe owner. For those considering a new Conroe board, the already desirable P5B has just moved to the head of the 965P class. The only feature missing now is support for CrossFire video configurations, which remains an advantage of the 975X for gaming enthusiasts.
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Wesley Fink - Thursday, August 24, 2006 - link
We agree with you. We stated what we found - all Conroes we tested unlocked down. We also told you what Asus told us, but we were clear it could not be confirmed in our own testing. We did see screen shots of a locked Conroe at higher multipliers, but we did not find one in our testing. Our coverage was fair IMHO.Sunrise089 - Friday, August 25, 2006 - link
I would say the coverage was helpful, but not fair. Or if it was fair, it wasn't what I except from AT. I think normally you guys are pretty tough on campanies that don't deliver on promises, which is great because:-You're an advocate for the consumer
-You serve as a counterweight to huge manufacturer-funded marketing efforts.
I think your position on promised video-card launch dates that came and went was more what I like - you reported the manufacturer's stated date, but also blasted the GPU maker for letting the dates slip in the past and suggested it was likely to happen again.
It's fine to publish ASUS's claims, after all you want them to send you products to review, but why not editorialize a little more. Not have one chip that did what they claimed was sure plenty of justification.
Sapiens - Saturday, August 26, 2006 - link
So we should blame ASUS for the lack of Conroe chips at AnandTech that can be unlocked upwards? AT stated ASUS' claims and warned that they weren't able to verify all of them. It sounds like you just want the authors of the article to bash someone.Sunrise089 - Saturday, August 26, 2006 - link
I want the authors to keep up working on behalf of the consumer. When a company touts a feature that isn't present in many if not most cases, the company shouldn't get much credit for the "feature". Repeating the party line offered by ASUS gives them more credibility than they need to be given here. You and I can all go to ASUS's site and read up on their marketing department's list of reasons to buy their board, I expect AT to revivew the board with an eye to using their expertiese to inform me about it's strengths and weaknesses. An advertised feature that is present in ZERO percent of tested boards is more of a minus than a plus.