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Do you have a bad 4770k ....

ratters

ratters

ratters

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18 Jan 2009
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653
When you can only reach 4.4 on 1.3v stable. I can get 4.5 on 1.35 but my memory wont allow its standard 2133 have to clock in down to 1333mhz.

Temps are high 75ish on 4.5 using prime95.

Under game load they hardly leave 45 -55. I tried putting 1.4v through it but 4.5 became unstable so get 4.6 seems impossible.

More extreme cooling wouldnt help then would it.

I have turned off all the sleep stuff etc in the bios.

Using gigabyte z87 oc board any other tips?
 
For 24/7 most Haswell dont scale on ambient cooling with more than 1.3v. 1.4 is too much. Dont stab test with prime just play your games and see if the clock is stable for the PC to do what you need it to.

I would also work at getting an efficient overclock 4.3 tuned 2133 memory and 41 uncore will be faster than 1333mhz memory and 4.5 ghz OC. With Haswell memory bandwidth does make a difference as does uncore speed.

Giga OC is a good board so that I doubt is the issue.
 
Well i seem to have 4.4 on a 40 uncore presently with memory seemly ok but I have had 2 blue screens that seem memory related. Is it worth putting a bit more volts through the memory ?
 
what other settings you using? VCCIN voltage should be around 1.9-2.1 at that vcore voltage with VRIN LLC set to extreme, what uncore you running? also set system agent voltage to 0.2, i/o A and i/o digital to 0.2(just to rule out memory)
 
Last edited:
vonex said:
what other settings you using? VCCIN voltage should be around 1.9-2.1 at that voltage with extreme LLC, what uncore you running? also set system agent voltage to 0.2, i/o A and i/o digital to 0.2(just to rule out memory)
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I'll try that when my PC has finished catching up on all the Steam downloads from the autumn /black friday sale.
 
Well I have just found out after some testing that my Easytune was messing up my settings. Idiot ! Well I have now got it stable at 4.5 40 uncore and 2133 memory :).

Its at 1.375 v though so going to try to lower that after i play some games. But the Temps reached 79 on the hottest core so i think its usable. Just wish my h100i wasnt so load under 100% cpu load might have to bite the bullet and get a custom loop.
 
79 is fine with Haswell man!!

1.375 is high though. Uninstall all overclocking software for 24/7 CPU clocks. Do it all from Bios then no conflicts occur.
 
Is it hard to see if I have good chip for overclocking without actually doing any?
People mention voltages, my 4770k goes up to 1.3v on stock+turbo, usually sits around 1 - 1.1v at 3.5 ghz.
Is that good or bad?
 
8 Pack said:
79 is fine with Haswell man!!

1.375 is high though. Uninstall all overclocking software for 24/7 CPU clocks. Do it all from Bios then no conflicts occur.
Click to expand...

Should i really worry about that voltage then ? Its just 4.5 seems allot higher in my head that 4.4 ;) its a magic half a ghz :cool:
 
Mine isnt the coolest runner if stressed tbh, (which i avoid now as 94c is a bit much). Voltage wise it will hit 4.5ghz on 1.262500, temps in gaming, (my main use) are grand at 65c max in a case with poor airflow. Currently at stock though as i havent got round to re clocking it with my new ram kit installed.
 
You can raise uncore without touching the RAM speed, but yeah - get the CPU clock sorted first, then uncore, then the memory last. With my last set of memory I found that I could run it at 2400MHz, but my stable 4.5GHz OC became unstable under load. With 2133MHz I had to increase system agent voltage (might be a Gigabyte thing) to avoid memory errors in memtest86+, but the OC was stable.
 
Well just back froma game session peaked at 59c and most of the time hovered around 45c. It seem to go up then my fans on h100i went up a little then back down to mid 40's
 
teppic said:
You can raise uncore without touching the RAM speed, but yeah - get the CPU clock sorted first, then uncore, then the memory last. With my last set of memory I found that I could run it at 2400MHz, but my stable 4.5GHz OC became unstable under load. With 2133MHz I had to increase system agent voltage (might be a Gigabyte thing) to avoid memory errors in memtest86+, but the OC was stable.
Click to expand...
Yep, ive had to mess about with sa as well when clocking my previous sammy green ram.
 
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