System Builder Marathon, March 2010: $750 Gaming PC

Unlocking: Success!

After all testing and data charts were completed, I attempted to unlock the dormant fourth core on the Athlon II X3 435, just so readers would know if it was successful or not. By setting the BIOS option EC Firmware Selection to Hybrid and ACC to Auto, the three-core Athlon II X3 435 booted up as an AMD Phenom II X4 B35.

All four cores were fully stable at stock voltage, so it was, of course, time to see how much this would affect the maximum overclock. While stability testing, I sought input from the other members of the SBM team, and there were no objections towards running the test suite again as an overclocked quad-core processor.

Having little time to spare, I was pleasantly surprised to find stability at 3.598 GHz without any additional voltages over the three-core overclock. The northbridge could be raised back to the same 10x multiplier, but to get the last core stable above 3.5 GHz, the HyperTransport link multiplier had to be dropped down a notch at 7x.

It’s this four-core overclock that will compete against the other two more expensive SBM machines in Thomas Soderstrom’s value comparison. But since not all processors will unlock, we’ll give readers a look at both sets of data in this article.

  • erdinger
    This system seams to be really potent. Good job!
    Reply
  • erdinger
    Good job. I Really like the system and I agree in nearly every decision.

    unlocking the forth core and still overclocking to 3.6Ghz is just great! I'm getting jealous because my 4th core is broken.

    I'm looking forward to the value comparison.
    Reply
  • cruiseoveride
    This is almost identical to my build. But I used 2nd hand parts, dual HD4870s and it worked out just less than $600.

    4 cores, 3.2Ghz, 13,000 3dmark points.

    Great bang-for-buck system.
    Reply
  • stray_gator
    Apart from a SBM entry, this article also provides reality check regarding the benefits of a fourth core. quite useful.
    Reply
  • jsowoc
    I find the value comparisons are usually (always?) that the least expensive computer has the most "value", followed closely by the middle computer, trailed by the most expensive setup.

    Would it be possible to make a 3-way comparison of systems at the same price (for example, $1000)? One could be an AMD-based system, another an Intel-based, and a third maybe a graphics-heavy monster, or a MicroATX system (to see how much performance you sacrifice to stay in $1000 and fit a small form factor).
    Reply
  • Otus
    What would by interesting is a round of "upgrade" builds. Set specific budgets for ungrades and add them on top of the hardware from a previous round. That would allow commentary on upgrade paths and also help builders of new rigs.
    Reply
  • shubham1401
    Wow!
    This processor is a beast for the price...Really Impressed
    Reply
  • Crashman
    jsowocI find the value comparisons are usually (always?) that the least expensive computer has the most "value", followed closely by the middle computer, trailed by the most expensive setup.Would it be possible to make a 3-way comparison of systems at the same price (for example, $1000)? One could be an AMD-based system, another an Intel-based, and a third maybe a graphics-heavy monster, or a MicroATX system (to see how much performance you sacrifice to stay in $1000 and fit a small form factor).
    Except for the CPU cooler, you usually sacrifice nothing to go Micro ATX. Tom's Hardware even did a micro-ATX SBM...where the Core i7 system sucked because it had to use the stock cooler. You can find semi-small micro-ATX cases that fit mid-sized coolers.

    Antec also makes a MICRO ATX MID TOWER which REALLY sux since it misses the point of Micro ATX completely, so I don't want to hear about that one.

    And of course there's Micro ATX mini-towers with the same layout as full-ATX. You get all the performance of ATX and the big cooler, with a case that's around 14-15" tall.
    Reply
  • jsowoc
    CrashmanExcept for the CPU cooler, you usually sacrifice nothing to go Micro ATX. Tom's Hardware even did a micro-ATX SBM...where the Core i7 system sucked because it had to use the stock cooler. (...)
    My argument was not that they should do a $500-$1000-$2000 comparison of uATX builds - they did this. I was suggesting doing a $1000intel - $1000amd - $1000uATX comparison.
    Reply
  • tigerwraith
    I still dont understand why they went with 2 gfx cards. Ive seen in a lot of reviews that even the newest games dont always work right off the bat when using Crossfire or SLi, So why not spend the money on a 5770 for this. You get DX 11, Dual to Triple moniters, and passthrough. So say you wanted to build a budget HTPC that could game Id have went with the 5770 or 5830 not only would that be a great cpu to watch on a HDTV but you would only need the HDMI cable to run everything.
    Reply