Windows 8 RTC Bug Isolated, Fixed

[snowComet]

Last week, HWBot banned benchmarks from Windows 8 due to the real-time clock issues. Christian Ney, an overclocker fro Ocaholic found the root of the problem, and made a fix for it. He collaborated with CPU-Z author Franck Delatte, who provided him with a utility to read out four system timers in real time( ACPI, HPET, RTC, QPC), and the calculated DMI frequency based on each timer. They found out that Windows 8 may not use ACPI or HPET as the timers, but use an internal timer instead. Based on these findings, they found a fix, which has to be applied on command line settings.

 

 

http://www.techpowerup.com/189607/windows-8-rtc-bug-isolated-fixed.html

[gibbsy81]

Doesn't effect me but its nice to see that the community is fixing screw ups in windows.

[bchampion96]

Last week, HWBot banned benchmarks from Windows 8 due to the real-time clock issues. Christian Ney, an overclocker fro Ocaholic found the root of the problem, and made a fix for it. He collaborated with CPU-Z author Franck Delatte, who provided him with a utility to read out four system timers in real time( ACPI, HPET, RTC, QPC), and the calculated DMI frequency based on each timer. They found out that Windows 8 may not use ACPI or HPET as the timers, but use an internal timer instead. Based on these findings, they found a fix, which has to be applied on command line settings.

 

 

http://www.techpowerup.com/189607/windows-8-rtc-bug-isolated-fixed.html

 

What did the bug actually do noticeable effects wise?

[Assassin]

What did the bug actually do noticeable effects wise?

it screwed up benchmarks by allowing them to run for extra time. some exploited it to gain larger numbers in their bench tests

[qwertywarrior]

i wonder

how open is windows

i mean u can do a lot of mods to it

is there a limit to its "openness" ?

[snowComet]

What did the bug actually do noticeable effects wise?

They found that if the cpu is overlocked, or underclocked, windows 8's time will be faster, or slower than real time.

 

 

 

 In one of the videos, we underclocked the base clock frequency by 6%. After 5 minutes, Windows Time was already 18(!) seconds behind real time. When overclocking the base clock frequency, we can see the opposite effect. We overclock by roughly 4%, and after two minutes, Windows Time is 3 seconds ahead of real time.

 

http://hwbot.org/news/9824_breaking_windows_8_benchmark_results_no_longer_accepted_at_hwbot

[GoodBytes]

The command line is: bcdedit /set {current} useplatformclock yes

if anyone wonders.

[Andrew48]

So does this means that intel cpus dont realy perform better in benchmarks(when overclocked) when running Windows 8? 

[mgsstar]

Glad that they found a way to fix this problem. Probably the benchmark applications will update and will apply this command when it detects that the OS is Windows 8 to make sure that the results are accurate.

[ILoveShaders]

i wonder

how open is windows

i mean u can do a lot of mods to it

is there a limit to its "openness" ?

 

There is a limit, but it is so modular and gives you so many options that it should be enough, as long as you are not trying to create your own distro of it.

 

So does this means that intel cpus dont realy perform better in benchmarks(when overclocked) when running Windows 8? 

 

No, the processors are performing better overclocked, it's just that when benchmarks calculated the result they didn't get the right answer.

[GoodBytes]

Glad that they found a way to fix this problem. Probably the benchmark applications will update and will apply this command when it detects that the OS is Windows 8 to make sure that the results are accurate.

Or use the correct timer.