Be careful to be deceived, CPU detection software also error

AMD CPU because of its excellent overclocking performance, reasonable price and good modifiable ability to become a lot of diyer choice. Because of this, gave JS a lot of room for fraud. In the face of the current whiteboard athlonxp rampant situation, many DIYer are summing up experience to determine whether their "dragon" belongs to the remark "dragon." One of the friends told me that there is currently a software called the Brain Identifier (CBI) can detect the number of AMD CPU, as long as the number of the surface of the CPU compared to determine whether there is a problem with the CPU. If through the detection software to get AMD CPU internal information, it is good, because this information is generally unable to fake, can become a judge CPU true and false evidence. But is this method really effective?

Tips: AMD's CPU number contains the type and frequency of the CPU information. For example, the contents of the number "Sda2200dut3d" can be interpreted as follows: "SD" means CPU is Sempron; A "for desktop CPU;" 2200 "means PR value is 2200+;" D "indicates that the CPU adopts OPGA encapsulation;" U "indicates a voltage of 1.6V;" T "means the heat-resistant value is 90 ℃;" 3 "means 256KB L2 cache;" D "represents the front-end bus frequency of the 333MHz.

With this in doubt, the author quickly came to the CBI's official site http://cbid.amdclub.ru/to download the latest CBI version 7.30. The author ran the software on his own Duron 1.6GHz, and I was surprised that it actually measured the first segment of the CPU number "dhd1600dlv1c" (Figure 1). Take out your own Duron 1.6GHz a look (Figure 2), the same number! Is this software really able to measure the true number of CPUs?

Figure 1

Figure 2

Careful observation, the software can even show the size of the CPU release time, such as this piece of Duron 1.6GHz is displayed as the August 15, 2003 release. Test the newly purchased Sempron 2200+ (Figure 3), also showing the correct number "Sda2200dut3d" (Figure 4), which is displayed as August 17, 2004. It seems that CBI 7.30 is really powerful.

Figure 3

Figure 4

The curious author decided to try again to see if CBI 7.30 was really smart by modifying the "Athlonxp" made by L2 and by deciphering the "overclocking Sempron" modified by the frequency multiplier.

The author first will own Duron 1.6GHz connection L2 after "change body" for Athlonxp 1900+, but after the test software shows the ATHLONXP 1900+ the first line number "AXDA1900DUT3C" (Figure 5), appears to face "change body athlonxp" Software is no way to identify.

Figure 5

Again with Sempron 2200+ modify L3 cracked for Sempron 2800+ overclocking also smooth muddle, became "genuine" Sempron 2800+ (Figure 6).

Figure 6

So is the software able to identify the overclocking AMD CPU? I decided to look at the first, the Duron 1.6GHz FSB from 133MHz to 166MHz, will duron to 2GHz. The software goes through it very smoothly, and "dhd1600dlv1c" is clearly displayed (Figure 7).

Figure 7

Then the Duron1.6ghz frequency from 12 to 13.5, to become duron1.8ghz, the results of the software will be changed to the frequency multiplier Duron1.6ghz recognized as Duron1.8ghz; the software actually shows "dhd1800dlv1c" (Figure 8).

Figure 8

Through the test, I regret to find that the CBI's detection of the CPU is flawed. It is estimated that only through the frequency multiplier, FSB, caching and other measurable CPU information to judge, and select the software writer in advance written in the software preset CPU number for information display. I hope you buy AMD CPU time don't too superstitious this class can display the CPU number test software.

Although the same as other test software can not fully identify the true and false AMD CPU, but this "show CPU number" idea is very interesting. And afterward, the CBI function is also relatively strong, in addition to the General CPU test project, you can also under the mobility option for mobile version of the ATHLONXP and Sempron power management settings, And can be in tweaks under the L1 cache settings and DRAM delay settings. Interested friends can study it.