Gigabyte + 3770K won't overclock past 4.1Ghz anymore

[rafaeld]

Hi Guys. I have a 3770K with a 212 Evo, in a Gigabyte GA-Z77M-D3H, rev 1.0 (bios F13 version - the latest version), in a Win 7 64bits SP1. I also have 32Gb of RAM G.Skill Ripjaws-Z 10-10-10-30 1600Mhz (XMP profile, 1.5V stock), a 128Gb Samsung 830 SSD, 4 Aerocool case fans, and PSU is a Seasonic 620W S12II 80+.

Default specs were multiplier x35 and turbo boost x39. The CPU stayed always in 3.9Ghz. So I decided to rise the multiplier. My motherboard does not have any CPU voltage change option, so I have to stick with auto.

First I raised the turbo multiplier to 4.2Ghz (all made in bios). No problems, intelburntest ok, max temp 68C. Then I raised to 4.5Ghz and was running ok also when a black screen appeared and the system crashed. Now it wouldn't boot anymore (no beepsound, only black screen) and I had to short the CMOS jumper to go back to default options.

So, I turned off turbo bosting and tried with multiplier x42 but it wouldn't boot also (it keeps rebooting automatically, beeping each time). So I lowered again to x39 and it worked normally. Rised again to x42, same problem, doesn't boot. Lowered to 4,1Ghz and it worked ok also.

I ran Prime95 for several hours and it's perfectly ok, with mas temps around 70°C. I tried to take out the battery for 30min, put it back again, but the problem persists: I can't go beyong the 4.1Ghz limit anymore.

I would still like to reach 4.2Ghz or even try again a higher multiplier, but it looks like my MB aquired some kind of memory and it won't allow me go past 4.1Ghz anymore. Does anyone knows what is happening with my configuration and how can I reach higher multipliers again?

Thanks a lot.

 

[VirtualLarry]

Burned the VRMs slightly?

 

[tweakboy]

Hi Guys. I have a 3770K with a 212 Evo, in a Gigabyte GA-Z77M-D3H, rev 1.0 (bios F13 version - the latest version), in a Win 7 64bits SP1. I also have 32Gb of RAM G.Skill Ripjaws-Z 10-10-10-30 1600Mhz (XMP profile, 1.5V stock), a 128Gb Samsung 830 SSD, 4 Aerocool case fans, and PSU is a Seasonic 620W S12II 80+.

Default specs were multiplier x35 and turbo boost x39. The CPU stayed always in 3.9Ghz. So I decided to rise the multiplier. My motherboard does not have any CPU voltage change option, so I have to stick with auto.

First I raised the turbo multiplier to 4.2Ghz (all made in bios). No problems, intelburntest ok, max temp 68C. Then I raised to 4.5Ghz and was running ok also when a black screen appeared and the system crashed. Now it wouldn't boot anymore (no beepsound, only black screen) and I had to short the CMOS jumper to go back to default options.

So, I turned off turbo bosting and tried with multiplier x42 but it wouldn't boot also (it keeps rebooting automatically, beeping each time). So I lowered again to x39 and it worked normally. Rised again to x42, same problem, doesn't boot. Lowered to 4,1Ghz and it worked ok also.

I ran Prime95 for several hours and it's perfectly ok, with mas temps around 70°C. I tried to take out the battery for 30min, put it back again, but the problem persists: I can't go beyong the 4.1Ghz limit anymore.

I would still like to reach 4.2Ghz or even try again a higher multiplier, but it looks like my MB aquired some kind of memory and it won't allow me go past 4.1Ghz anymore. Does anyone knows what is happening with my configuration and how can I reach higher multipliers again?

Thanks a lot.

If you can't get the same OC, it is hard to blame the CPU. CPUs dont die unless you take off the HSF and run it @ 100c and explosion.

I dont think its your CPU. Its not RAM or video card. Could be the PSU or the MOBO just got busted. make sure on your voltage settings etc...

 

[felang]

Monitor load voltage with cpuz, maybe mobo auto volts are just way too high

 

[rafaeld]

Hi, here's a CPU-Z and Coretemp screenshot at full load:

​

 

[Arkaign]

Given what we know, and the relatively low temps (considering max for IB), it's almost certain that the mobo is a little borked. There could be other explanations, but that's the one that makes the most sense.

If you were pushing 1.5V or something crazy, then I'd say the CPU could be the culprit. Of course with 'auto', the voltage does get pushed harder. Still, I think a CPU that was suddenly unstable at all at 4.2Ghz wouldn't pass Prime/etc at 4.1Ghz. Hence, I think it's a mobo issue (unable to supply correct volts for 4.2+).

 

[rafaeld]

I've passed successfully for all tests with prime95 in blend mode with 98% RAM for more than 5 consecutive hours (overnight) at 4.1Ghz.

The strange thing is that I have already reached 4.2Ghz and 4.5Ghz at the same day, booted normally, no complains from the mobo and I ran some tests for some 15min each. Suddenlly, I was not able to go past 4.1Ghz anymore. Almost as if the mobo had learned something (and doesn't erase this "memory" with CMOS reset).

 

[rafaeld]

I was able to increase the multiplier via Easytune6 now. Currently running at 4.3Ghz, several hours of Prime95 and Aida64 with zero problems. I was at 4.4Ghz but it crashed after 30minutes, so I went back and stick with 4.3Ghz.

Still don't know why I can't set the multiplier in BIOS. The system won't boot after 4.1Ghz. I reflashed the BIOS with the latest version again, but it didn't change.

Definetly not CPU problem. Anyone got a hint why can I increase the multiplier via Easytune, but not able to boot when I change it over x41 in BIOS?

 

[Yuriman]

My guess is that you missed a setting you had enabled before, something like LLC or iPLL overvoltage.

I use Intel's windows overclocking utility and have had a great experience with it so far, I'd recommend that over easytune.

 

[rafaeld]

No LLC on Z77M-D3H mobo. Tried PLL on enabled, disabled and auto settings (the only 3 available) and still the same problem.

Tried also Intel's Extreme Tuning utility like you said, I liked it but it seems it can't auto OC to the saved settings after reboot without opening the program again, can it do that?

 

[Yuriman]

It does for me.

See this for how you need to configure your bios for IETU to work.