my 4770k is lemon with these specs: 3.9ghz at 1.1v, 4.0ghz at 1.25v, and 4.3ghz at 1.5v
my 4770k is lemon with these specs: 3.9ghz at 1.1v, 4.0ghz at 1.25v, and 4.3ghz at 1.5v
i'm really unsure if my chip is the worst 4770k available, because what i found online is mostly around 4.2 @ 1.2v. fyi, i'm using a stock cooler just to test my cpu's overclock potential before spending on a better one. i don't really plan to upgrade since my chip is already bad. if you can, could you help me find some other poor 4770k cases that are even worse? so i could feel better about it?
Are you running an ASUZ z87 chipset? I came across a guide online that provides extensive details on overclocking this chipset. Here is the file you mentioned:
http://ulozto.net/x1X8SV2b/z87-and-4th-g...needit-rar
However, there is a password protecting the .rar file, and I’m having trouble locating the document elsewhere.
I also have the 4770k.
This guide helped me a lot:
http://www.overclockers.com/3step-guide-...el-haswell
For me, keeping cache speeds around 300 MHz was key, matching my core speed.
I'm currently at 4.5 GHz @ 1.32 V, with a cache multiplier of 42 (min and max) – very consistent.
I can push to 4.6 but need 1.4 V for stability (cache at 43).
Other guides suggest most 4770 models can reach 4.3 with little voltage change, so I might need to adjust settings for better stability instead of changing voltage.
I just remembered to maintain your RAM speeds at 1666 MHz or below, since many 4770 models aren't suited for high-speed RAM when overclocked.
Every chip is unique, it's similar to a lottery. Some perform exceptionally well, while others barely meet expectations.
Dorosh has additional information as well.
The guide helped me:
http://www.overclockers.com/3step-guide-...el-haswell
For my setup the important setting was maintaining cache speeds around 300 MHz compared to my core speed.
I’m currently at 4.5 GHz @ 1.32 V, with a cache multiplier of 42 (min and max), which gives stable performance.
I can push up to 4.6 GHz but need 1.4 V for stability (cache at 43).
Other guides suggest most 4770 models can reach 4.3 GHz without high voltage, so I might need to adjust settings for stability instead of just voltage.
Hi sir, thanks for the advice, but I still struggle to keep stable over 4.0 GHz with 1.25 V, even when adjusting cache ratio or voltage.
I’ve read the guide and others, but progress remains slow.
I’m convinced my chip is one of the worst 4770 models... unless it’s my RAM that’s the issue. I’m using a normal 1600 MHz 8 GB single RAM, but I haven’t tried slower speeds yet.
Are you running an ASUZ z87 chipset? I found a guide online that provides extensive details on overclocking this chipset. Here is the file: http://ulozto.net/x1X8SV2b/z87-and-4th-g...needit-rar. However, there is a password on the .rar file, and I couldn't locate the document elsewhere.
In testing, they evaluated 600 processors, with 70% achieving an overclock to 4.5 GHz or higher. Only 30% reached 4.6 GHz, considering core voltages between 1.15 to 1.4 and a stable 1.4 Volts—unless you're using a high-capacity liquid cooling system, the CPU might overheat.
If you were unlucky enough to have one of the 30% processors that struggle with overclocking, I apologize.
The next suggestion is to leave the motherboard settings at auto mode, except for clock ratio, core voltages, and RAM speeds. Also, note that the test only encountered stability issues with 1600 MHz RAM; your 1600 MHz should be fine. Running a RAM stress test at default settings can help identify any problems.
You are using an ASUZ z87 chipset? I found a guide online that provides detailed information about overclocking this chipset. Here is the file: http://ulozto.net/x1X8SV2b/z87-and-4th-g...needit-rar. However, there is a password on the .rar file and I couldn't locate the document elsewhere.
In testing 600 processors, only 70% managed to reach a 4.5 GHz overclock or higher. Just 30% achieved 4.6 GHz, considering the core voltages stayed between 1.15 and 1.4 and at 1.4 volts, unless you use a high-capacity liquid cooling system, your CPU might overheat.
It seems you might have been unlucky with the processors that don’t overclock well... Sorry.
The only advice I can give after reviewing this again is to keep the motherboard settings at auto mode, except for the clock ratio, core voltages, and RAM speeds. The test mentioned only stability issues with 1600 MHz RAM, so your 1600 MHz should be fine. You could perform a RAM stress test at default settings to check for problems.
Apologies for the delayed response. I’m frustrated. I’ve tried many combinations of VRING, Vcore cache ratio, and various tips found online, but I gave up. My chip is clearly one of the worst 4770k in the world—someone probably salvaged it from a pile of other chips. It really annoyed me when someone claimed their chip was faulty at 4.3g @ 1.2v. T_T
Thanks for your help.
keperolan :
Dorosh :
Are you using an ASUZ z87 chipset? I have a copy of a guide that I found on the internet a while ago which details a lot of information about overclocking using this chipset. This is the file here:
http://ulozto.net/x1X8SV2b/z87-and-4th-g...needit-rar
but for some reason there is a password on the .rar file and cannot find the document somewhere else.
Basically they tested 600 processors, out of those, 70% can get to 4.5 GHz overclock or higher. Only 30% got to 4.6 (keeping in mind this is within reasonable core voltages between 1.15 to 1.4 and at 1.4 Volts, unless you're using a high capacity liquid cooling system, you're likely to melt the CPU).
This being said, you may have been unlucky enough to have gotten one of the 30% of processors that don't want to overclock well... Sorry.
The only other thing I can suggest after reading this document again, is keeping the motherboard (any mobo) settings at auto except the clock ratio's, core voltages, and RAM speeds. Also, this test of 600 processors said they only had problems with stability after 1600 MHz RAM, so your 1600 MHz shouldn't be a problem. You can do a RAM stress test (at stock settings) and see if there is a problem with your RAM.
sorry for the late reply. i am busy being frustrated. i have tried countless combination of vring vcore cache ratio, every possible tips i have found in the internet. and i eventually gave up. my chip really is the worst 4770k in the world, i guess someone dug it up under a pile of non-k chips. it irked me somehow when someone said thier chip is dodgy at 4.3g @ 1.2v. T_T
thanks for trying to help sir.
hi bro,
i feel you man.I think my proc is same like you. oc to 4.0 ghz. vcore is 1.25.
I have no idea what has happened to my i7 4770k. during prime95 test, temp around 96 to 100c.
using CM seidon 120v