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ABIT is renowned for having a BIOS that allows for plenty of tweaking. You have your usual items like Power Management, PC Health Status, and the PnP/PCI Configurations, but let's look at the areas that will be of most interest to our readers.
The ABIT SoftMenu
To access CPU overclocking options, you'll have to set the CPU Operating Speed to "User Defined". Once that's done, you can adjust the Ext. Clock, N/B Strap, DRAM Ratio, AGP Ratio, Fixed AGP/PCI Freq to your heart's content.
Remember that 99% of you only have access to retail Pentium 4 CPUs, so in that case, these CPUs are multiplier locked so you cannot change that. The FSB is another story, and the IC7 offers plenty of headway, allowing you to go as high as 414FSB. Now, the reality is you'll be hard pressed getting above 250FSB without some great cooling.
The AGP Ratio, Fixed AGP/PCI Freq is handy since overclocking the FSB overclocks everything, which can wreak havoc on your system, so it's a good idea to keep those areas within spec.
You got some good voltage options, which is a must when overclocking. The ability to add some extra juice is sometimes the difference between a constantly crashing setup, or a rock solid PC. You can go as high as 1.925v for the CPU, 2.8v for the memory, and 1.65v for the video.
The only other area of note (they are all important, but for those who like to dabble in the art of voiding their warranty…) is the Advanced Chipset Features. It is here you can adjust your memory timings, and if your ram can handle it, you can really tweak it here.
One item you may not see, unless you've updated the IS7 to the latest BIOS (or if you've purchased a recent revision), is the Game Accelerator options. It is possible that boards you buy as of today may already have it, but the BIOS is official, and ready for download now. We covered the Game Accelerator just over a week ago, but in a nutshell, it's a series of memory optimizations. You have a choice between Auto, Turbo, Street Racer and F1. The latter two nets the largest performance gains, but toughest to implement if your ram cannot handle it.
We've covered the importance of the Game Accelerator recently, and let me just say it is very much worth your while to download it and update your board.
Overclocking
An ABIT board wouldn't be an ABIT without the ability to overclock like a champ. How was the IC7 then? Considering the multiplier is locked, we did quite well. We've had some good luck in the past with the stock Intel cooler, so for the initial tests, we'll be sticking with that.
Out of the box, the 2.4C runs at 12x200.
Stock Speed
There's a free 6MHz OC for you as you can see in the WCPUID screenshot. We can see the CPU is running along at 2405.99MHz, which is slightly ahead of the IC7 tested earlier. The next OC we went for was 225FSB, which was done without any problems. Stock voltage remained the same, though to run our Corsair TWINX ram at 1:1, we needed to tone the timings down to 2.5-2-2-7.
The next overclock was 250FSB, and in order to do so, we needed to run the ram at 5:4 (200MHz).
250FSB OC
I should mention that early in our IC7 tests, a bump to 1.7v was needed for the CPU, but this was not required after a couple weeks. Out of the gates, the IS7 handled the 250FSB with no adjustment in vCore. This goes to show you that occasionally, your CPU needs to be burned in.
The stock cooler topped out at about 258FSB. It worked with varying levels of success between 255 - 270FSB, but it wasn't stable. It was time to bring in the water.
301FSB OC
Using our Swiftech H20-8500, equipped with a couple 68cfm fans blowing trough the radiator, the best OC we managed was 301FSB. I should mention that the system was not stable enough for benchmarks here. I managed to take a screenshot, and save it, but a few minutes later, the system locked up. The temperature was about 58C in the BIOS, so I don't know if heat was an issue, so this may be the breaking point for the CPU or the IS7. At 290FSB, things ran much better, but after about 30 minutes, the system would lock up again. It's no secret that the Swiftech H20-8500's radiator is a bit on the small side, so a larger radiator may make the difference between getting to 300FSB, and running at 300FSB.
Test Setup
ABIT IS7 Max II Advance: Pentium 4 2.4C (12x200: 2.4GHz), 2 x 256MB Corsair TWINX PC3200 Ram, AiW ATi Radeon 9700 Pro, 80GB Western Digital, Windows XP SP1, ATi Catalyst 3.4
ABIT IS7 Max II Advance: Pentium 4 2.4C @ 3GHz (12x250), 2 x 256MB Corsair TWINX PC3200 Ram, AiW ATi Radeon 9700 Pro, 80GB Western Digital, Windows XP SP1, ATi Catalyst 3.4
ABIT IC7: Pentium 4 2.4C (12x200: 2.4GHz), 2 x 256MB Corsair TWINX PC3200 Ram, AiW ATi Radeon 9700 Pro, 80GB Western Digital, Windows XP SP1, ATi Catalyst 3.4
Test software will be:
AVI-to-MPG Encoding
CPU Tests
Unreal Tournament 2003
Quake 3: Arena
Jedi Knight 2
Now, I mentioned the Game Accelerator BIOS earlier, and I want to make it clear you WILL be seeing benchmarks with the Game Accelerator set to Street Racer. The same goes for the IC7... Street Racer settings as well. I will also be presenting pre-Game Accelerator benchmarks for both motherboards to illustrate the improvements a simple BIOS update can make. The key will be as follows:
IS7 - Pre = IS7 @ 2.4GHz with no Game Accelerator
IS7 - SR = IS7 @ 2.4GHz with Game Accelerator @ Street Racer
IS7 @ 3GHz = IS7 @ 3GHz OC with no Game Accelerator
The above key applies to the ABIT IC7 Canterwood as well, where IC7 replaces IS7 above.
Just a quick plug to for hooking us up with the 2.4C used for testing. Bob is a super guy, and tell him VL sent ya and he'll hook you up. Let's get on to testing, shall we?
Next Page - Application Benchmarks
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ABIT IS7 Max II Advance Motherboard: We take a look at the ABIT IS7 Springdale today, and if our benchmarks are any indication, this mainstream board demonstrates that the Canterwood is not the only game in town.
