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[Official] Haswell Owners Thread - Page 133

post #1321 of 3649
Quote:
Originally Posted by omeds View Post

Do you think 1.38 - 1.4v is "safe" 24/7 on a dilided chip under custom water? Intel Burn Test does not go over 77c and prime is topping out at 68c.

I'm happy to run these votages all day long since tems are good, just worried it might kill the chip.

From what I've read the previous 22nm CPUs are OK at 1.4v but that's a little risky. No word on how long they will last, but the common consensus seems to be that at that voltage the chips should last at least 3-4 years. Truthfully, I don't think anyone can say for sure.
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post #1322 of 3649
I would guess, if you have the expertise, energy, interest, and budget to build a custom loop and push the temps down that low at that voltage, 3-4 years is plenty of time for you though. That seems like the mark of a man overclocking until it megahurtz. thumb.gif
   
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post #1323 of 3649
Hi guys, I'm very new here... I know I should read whole topic, but I wanna ask you for help - quick help.

I have my haswell system since last weak - Core i7-4770k, Asus Z87-PRO... I read, that average chip has in default seting voltage at 1.050V, everything under that is good and above is not good. My has at stock 1.095V. So I'm worried, that I have bad chip, but I can still send it back and request for a new one, until next week.

I still running on stock cooler - at the end of the week I'll buy Noctua D14 or C14. I wanna overclock my haswell so I'm thinking about deliding, but at the same time I think about change my CPU for another peace.

Can I change, if I delid and apply new tim something with voltage? I guess not, but I want to ask you. Can I say with 1.095V at stock, that is bad chip?

I'll be happy for any good advices and so on. Time is clicking for m. returing my CPU and try another one, or not? Thanks to all..
post #1324 of 3649
Once you delid the only way you'd be able to return it would be to do something sketchy like gluing it back on, so I would test it before you delid it. You should be able to get an idea of how good the chip will overclock without delidding - your temps will be hot, but if you can run 4.5 @ 1.25 or 1.3V than you have a good chip that is worth hanging on to and delidding. There are chips that have default VIDs at almost 1.2V (mine is 1.18V) so 1.095V isn't terrible by any stretch.
post #1325 of 3649
Quote:
Originally Posted by Ponteral View Post

Hi guys, I'm very new here... I know I should read whole topic, but I wanna ask you for help - quick help.

I have my haswell system since last weak - Core i7-4770k, Asus Z87-PRO... I read, that average chip has in default seting voltage at 1.050V, everything under that is good and above is not good. My has at stock 1.095V. So I'm worried, that I have bad chip, but I can still send it back and request for a new one, until next week.

I still running on stock cooler - at the end of the week I'll buy Noctua D14 or C14. I wanna overclock my haswell so I'm thinking about deliding, but at the same time I think about change my CPU for another peace.

Can I change, if I delid and apply new tim something with voltage? I guess not, but I want to ask you. Can I say with 1.095V at stock, that is bad chip?

I'll be happy for any good advices and so on. Time is clicking for m. returing my CPU and try another one, or not? Thanks to all..

Deliding will only effect your temps, it won't lower the voltage needed for specific clocks. Deliding can however increase your max potential because it usually significantly lowers core temps. I haven't run my CPU at stock basically since day one, so I can't tell you if your stock voltage is good or not.

I recommend that you wait for your aftermarket cooler and start to dial in some basic clocks of 4.2 and 4.4. Play around with the voltage and stress test them. Compare the voltages you need to keep those clocks stable (and temps) to those of other owners. That will ultimately indicate an average, above, or below average chip. I was running 4.2 GHz stable @ 1.075V, but I have an i5 4670K. Also where are you reading the 1.095V from? BIOS, CPUz, or a synthetic benchmark program's monitor?
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post #1326 of 3649
Hi, thanks for quick responce. I read 1.095V at stock from last CPU-Z 1.65 x64 version and also HWinfo32

Of course I know, that stock cooler is a crap. I had for five years laptop I just returned to Desktop PC. Of course that if I delid I lost warranty. So I if I will send back my CPU I will not do it... I have 14 days for returning components without a reason. So I'm thinking about it very intensive.

BTW: what is the maximum voltage for keeping your CPU in good condion without risking? about 1.4V? I mean if you wanna go sometimes 24/7, when you rendering or doing something challenging. Thank you very much
Edited by Ponteral - 7/9/13 at 12:22pm
post #1327 of 3649
I would not return a 1.095V VID 4770K unless you are shooting for high overclocks (4.6+ on Haswell). You are just as likely to get a worse chip back as a better one.
post #1328 of 3649
Little Edit about stock clock.. I had lower BCLK.. it was under 100 Mhz. So I was able to get only 3.5 Ghz. So with turbo now and BCLK at 100 Mhz.

I'm running in last Prime95 - Torture test - in-place large FFT and it's running at 3.7 Ghz. and I'm at 1.169V in CPU-Z and HWinfo32 shows 1.1686.

So, this is bad or not? Thank you guys. I really apriciate your help. I spend lots of money for it. so I wanna know if can I keep it, or change it. Thanks again. smile.gif
post #1329 of 3649
I agree with Forceman, and you could very well end up with an even higher voltage CPU. That is why I recommend you truly determine its value before sending it back. If it ends up being a below average overclocker (needs very high voltage to achieve moderate clocks) then you can really only go up from there. But the only way to tell is by cranking up the voltage and then seeing what clocks it runs. So try to get a good cooler ASAP and dial in 1.200-1.250V manual. Then rise the clocks until your comp won't boot. If you get to 4.4-4.6 then you have a decent chip from what I understand. Once you find the voltage you are comfortable with and the corresponding clock, fine tune it until it is stable for 4-5 hours on Aida64 stress test.

You could also push the clock up to 4.2 (1.150V) maybe with the stock cooler, but keep an eye on temps. Put your desktop next to your air conditioner and leave the side panel off maybe. But I would really recommend waiting for your Noctua cooler and then stretching your CPUs legs.

1.169V seems about right because Prime and Aida64 will both pull up to an extra 0.100V while stressing the system. Set your own voltage and select manual to avoid this. What are your temps like BTW?
Edited by BangBangPlay - 7/9/13 at 1:01pm
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post #1330 of 3649
Thank you for great message. and long. Well.

I have BitFenix merc beta with back fan. So I tried how the CPU will be withnout back fan only CPU stock cooler and with panel on. and it was really horrible after 30 seconds in Prime95 temperatures was (in Real temp) 98 - 97 - 99 - 94. That's very bad.

So I turned back on my back fan - at max. I took of side panel and it's little bit better but still bad - now afer 10 minutes in Prime95 - in-place large FFT I have 90 - 87 - 89 - 86 - still with stock cooler.

I will do what you said, tomorow I will do it. I'll have to go to sleep, I'm in central Europe and tomorow I have to wake up early. So Thank you guys for helping tomorrow I will tell you. What I got from my CPU. wink.gif

BTW: I tried to set yersteday to 4.1 GHz with low Voltage. about 1.120. So when I start prime it had BSOD. but it run all the time at my manual 1.120. Even that it was at 0.8 Mhz. How can I change it to variable voltages, but keep my maximum voltage? Thanks
Edited by Ponteral - 7/9/13 at 1:21pm
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