Intel P35: Intel's Mainstream Chipset Grows Up
by Gary Key & Wesley Fink on May 21, 2007 3:45 PM EST- Posted in
- CPUs
ASUS P5K & P5K3 Deluxe Features
| ASUS P5K Deluxe and P5K3 Deluxe | |
| Market Segment: | Enthusiast - $229.99~$249.99 |
| CPU Interface: | Socket T (Socket 775) |
| CPU Support: | LGA775-based Pentium 4, Celeron D, Pentium D, Pentium EE, Core 2 Duo, Core 2 Extreme |
| Chipset: | Intel P35 MCH and Intel ICH9R |
| Bus Speeds: | Auto, 200 ~ 800 in 1MHz increments |
| Memory Speed: DDR2 | Auto, 200 FSB - 667/800, 266 FSB - 667/800/889/1067 333 FSB - 667/800/833/1000/1067/1111/1333 |
| Memory Speed: DDR3 | Auto, 200 FSB - 800, 266 FSB - 800/889/1067 333 FSB - 800/833/1000/1067/1111/1333 |
| PCIe Speeds: | 100MHz~150MHz in 1MHz Increments |
| Core Voltage: | Auto, 1.1000V to 1.7000V in 0.0125V increments |
| CPU Voltage Damper: | Auto, Enable, Disabled |
| Core Voltage Reference: | Auto, .63x, .61x, .59x, .57x |
| CPU Clock Multiplier: | Auto, 6x-12x in 1X increments if CPU is unlocked, downwards unlocked, Core 2 Duo |
| DRAM Voltage: DDR2 | Auto, 1.80V ~ 2.55V in various increments |
| DRAM Voltage: DDR3 | Auto, 1.50V ~ 2.20V in various increments |
| DRAM Timing Control: | Auto, 9 DRAM Timing Options |
| Transaction Booster: | Auto, Enable 0/1, Disabled 0/3 |
| NB Voltage: | Auto, 1.25V, 1.40V, 1.55V, 1.70V |
| FSB Voltage: | Auto, 1.2V, 1.3V, 1.4V, 1.5V |
| Memory Slots: | Four 240-pin DDR2 DIMM Slots Dual-Channel Configuration Regular Unbuffered Memory to 8GB Total |
| Expansion Slots: | 2 - PCIe X16 (1x16, 1x4 electrical for CrossFire or Multi-GPU) 2 - PCIe x1 3 - PCI Slot 2.2 |
| Onboard SATA/RAID: | 6 SATA 3Gbps Ports - ICH9R (RAID 0,1, 10, 5) 2 e-SATA 3Gbps Port - JMicron JMB363 |
| Onboard IDE: | 1 ATA133/100/66 Port (2 drives) - JMicron JMB363 |
| Onboard USB 2.0/IEEE-1394: | 10 USB 2.0 Ports - 6 I/O Panel - 4 via Headers 2 Firewire 400 Ports by Agere FW322 - 1 I/O Panel, 1 via Header |
| Onboard LAN: | Marvell Gigabit Ethernet 88E8056 - PCI Express Gigabit Ethernet controller Realtek RTL8187 PCI Gigabit Ethernet controller |
| Onboard Audio: | ADI 1988B - 8-channel HD audio codec |
| Power Connectors: | ATX 24-pin, 8-pin EATX 12V |
| I/O Panel: | 1 x PS/2 Keyboard 1 x WiFi Port 2 x e-SATA 1 x S/PDIF Coaxial/Optical - Out 1 x IEEE 1394a 1 x Audio Panel 2 x RJ45 6 x USB 2.0/1.1 |
| BIOS Revision: | v.0304 |
| Board Revision: | v1.00 |
ASUS has loaded down this board with a wide array of options that includes their WiFi-AP Solo wireless network solution, dual Gigabit LAN, ADI AD1988B HD audio codec with improved circuitry, and the complete AI Lifestyle suite. The BIOS is fairly comprehensive and is enthusiast oriented. The two most important features we used during testing are the Transaction Booster option that on average improved unbuffered memory scores and latency by 4%~7% along with the CPU Voltage Damper setting that greatly reduced Vcore droop. We noticed under load testing with our QX6700 that average Vcore droop was around .04V and with CPU Voltage Damper enabled the average VCore droop hovered around .02V.
ASUS P5K Deluxe Layout and Features
 |
| Click to enlarge |
ASUS did a really nice job in the layout of this board as all features on the board except for the clear CMOS jumper are easily reached. This board features an eight-phase power regulation system and 100% use of conductive polymer aluminum capacitors that provided excellent stability during testing at stock and overclocked speeds. During our overclocking tests we found the passive heatpipe system worked well but additional airflow was required to ensure stability during overclock testing.
The board installed easily into our Cooler Master CM Stacker 830 case and cable management was very good for power, optical, and hard drives. Our only concern was that two out of six SATA connectors were partially blocked when installing an 8800 GTX. The ports could still be used with an angled SATA connector, but it seems only standard SATA cables are included in the packaging. Our larger heat sinks did fit on this board, but there was not much space left around the CPU area after installation. We will go in depth about the board and its features in our P35 roundup before Computex.
ASUS P5K3 Deluxe Layout and Features
 |
| Click to enlarge |
The P5K3 Deluxe is based on the same board design as the P5K but includes a wrap around heatpipe system that provided a slight benefit during overclock testing provided airflow was adequate. We saw an average temperature reduction of about 2C when measuring the MCH under load when compared to the P5K board. However, the drawback is that installation of a large heatsink is cumbersome with this design. Our current inventory of heat sinks worked but be prepared for some minor cuts when installing them. Of course, the real news about this board is support for DDR3 memory and some interesting test results as we will see shortly.
Facebook
Twitter
RSS
58 Comments
View All Comments
yacoub - Monday, May 21, 2007 - link
I think HardOCP's conclusion is pretty honest. These boards are a first gen DDR3 setup that has to transition well from DDR2. Performance will be similar, they will offer a few new decent hardware features, but beyond that for most folks they should stick with their P965 or 650i/680i boards and their speedy DDR2 and wait until around a year from now when DDR3 will start to appear that legitimately outperforms DDR2 in a noticeable way and hopefully by then is cost competitive with DDR2.Right now we can get 2x1GB matched pairs of decent PC6400 DDR2 for around (and under) $100. When DDR3 reaches prices like that they'll see more converts from the enthusiast crowd. Or when they start showing performance gains on the order of 15-25% over DDR2.
tomoyo - Tuesday, May 22, 2007 - link
I don't think anyone should be thinking about an upgrade from a p965 in the first place, you've already gotten a core 2 duo and are waiting for the next gen of penryn! Obviously the point of this motherboard chipset is for new buyers, especially people who do not have a core 2 duo in the first place. That is exactly what my situation is, I'm sitting on an amd platform still and looking into when a good chipset/cpu combo is out. The P35 is it for myself, I like the higher fsb overclock and full set of features, hopefully the price will come down quickly as well. Also it's finally gotten to a point where we can get a full set of sata devices with no ide involved...which eliminates the jmicron issue.Wesley Fink - Monday, May 21, 2007 - link
If we were buying a new board today it would be P35 - based on our test results and not our untested opinions. Gaming is faster, memory performance is faster (even with DDR2), and the 1333 processor bus gives current C2D owners a "free" 25% overclcok in most cases.We would likely buy a P35 that supports DDR2 memory, because there is a large price difference in DDR2 and DDR3 right now, and DDR2 is just as fast as DDR3 on the P35 at the same speed and timings - and DDR2 is faster on P35 than P965.
However, we already have our first samples of low-latency DDR3 in for testing. Recommending DDR3 will be about how fast we see price parity with DDR2 as it is definitely the memory of the future.
suryad - Tuesday, May 22, 2007 - link
Any ideas on when an SLI based P35 setup would be released? That is about the only thing that is holding me back from purhcasing a P35 mobo. I want SLI.yacoub - Monday, May 21, 2007 - link
"If we were buying a new board today "Right. And the HardOCP editorial was writing more for those of us who already own a fairly recent board and are wondering if the performance is significant enough to warrant another upgrade. Conclusion: it isn't.
You're both right, in other words. If you're buying a new board today, no major reasons NOT to buy a P35 unless it's a DDR3 one in which case DDR3 is cost prohibitive and offers little to no real performance benefit. If you already have a P965, 650i, 680i, etc, no reason to upgrade.
tomoyo - Tuesday, May 22, 2007 - link
Actually that's not true, according to Kyle, he's endorsing the P965 for all users, new or old. I think he's gotten far too distrustful for new products, especially when this one looks pretty promising. Since the P35 is more of an evolution than anything else, it's a good possibility that we'll get some pretty stable products right off the bat. And I'm of the opinion that a cheap 5% performance upgrade and mobo with full penryn voltage support is worthwhile at the right price for any new user. I do think it'll be a good idea to wait about a month and see if there is any fallout before diving in.Wesley Fink - Monday, May 21, 2007 - link
That was an editorial, not a review. There was not a single test result in that article.On the other hand, we are late to NDA because we got 3 new P35 boards on Friday, and we wanted to bring you real test results based on four motherboards. Our comments and conclusions are based on testing a large number of P35 motherboards, and both DDR2 and DDR3 memory on these boards.
michal1980 - Monday, May 21, 2007 - link
I know, but his conculsion was to get a mature p965, yours a p35. uggh.JarredWalton - Monday, May 21, 2007 - link
With the testing results provided here (and in our previous articles), we're comfortable in saying that P35 is already quite mature, particularly the ASUS boards. If you already have a P965 board there's not much reason to upgrade, but if you're buying a new board we would take a serious look at P35 offerings.TA152H - Monday, May 21, 2007 - link
I was seriously considering getting one of these boards, but I wouldn't even think about it after your review. What the heck is going on with the power use???? The improvement in performance, to me, is a lot less noticeable than the damn noise you'll have trying to evacuate the heat from the motherboard. What a disappointment. The interesting thing is, another site that ran the power use came in lower than the P965, so I'm really confused which is right. My gut instinct is, they are, because this is a 90nm chip with lower specified power use, but I'm sure you guys knew that and were just as confused and made sure your results were correct. I don't get it at all. It's really disappointing, but maybe with future revisions Intel will get the power down to normal levels.I now think supporting DDR2 was a mistake, sure it's good today, but prices for DDR3 will come down, and they would come down fast if Intel made it only DDR3 since memory makers would be very motivated to get their act together. Plus, you'd pay LESS for the chipset, and you'd pay less in electricity for it, and you'd pay less for the motherboards since they wouldn't need as extravagant a cooling solution on it (although, I may buy a MSI just to have that roller coaster. I'm not sure why they felt that design was necessary, but I feel like I need it now. ). So, sure, the cost right now of DDR3 would offset it, but that point will be crossed, and for the rest of the life of the chipset, people will be paying for something that is completely unnecessary and useless, which DDR2 support will be. The P965 would have been fine for legacy support, you don't NEED a P35, and for those folks that wanted it, DDR3 would be fine. Maybe the X38 will drop the dreaded DDR2 support since it's a high-end solution and doesn't need to be shackled with DDR2 support. I hope so.