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i5 760 Are these settings okay? - Page 2

post #11 of 18
That Zalman is not adequate for an i5-760 @ 4.0... These cpu's run hot.


I would suggest trying it at 160 - 180 x 20, right around 3.80.

If you can keep temps under 75c in burn test then you should be ok..



BUT, 5 passes of IBT is nothing... You need to run something like Prime95 Blend for 8 - 12 hours. It would heat the cpu up as much, and does a much more thorough test.

I have passed 50 loops of IBT and still needed to tweak setting to get Prime95 stable..


PS: Never leave your CPU Vcore, VTT voltage or DRAM voltage on auto when overclocking. Some boards tend to auto adjust them to accommodate the change and they will push them higher then needed, and overvolt..
Edited by 10acjed - 1/7/11 at 3:23am
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post #12 of 18
50 Runs of IBT with all of your ram.
8 Hours of blend (aka overnight)

Is a good measure of stability.
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post #13 of 18
your stock cooler just isn't keeping up with the cooling requirements of your overclock. if its at a 19x by 190 mhz clock your at like what 3.6ghz? your at nearly a 600mhz overclock from the 2.8 Ghz clock that a normal 760 is clocked. Those temps are way too high, but then again that's a dead-giveaway of stock cooling (air cooling in my book). You either have a 3rd party air cooler that doesn't have enough thermal paste on its contact with the cpu or your not getting enough air circulation in your case.

my friend has the exact same chip at 4.0ghz with a 20x by 200 mhz clock with a H50 and hes running at 36c idle and 44c on load, which are must better sustained temps than what your achieving.

I would highly recommend you go out and purchase a Corsair H50 Liquid cooling unit for your cpu, you will find a world of difference (just use the thermal paste already applied to it, and clean off the paste off your cpu). You can find the H50 at Bestbuy or online at newegg.com.

also a side note, make sure your memory is unlinked (meaning the memory always stays at 1600mhz); once you get stable temps, then you can mess around memory clocks.

I hope this help.
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post #14 of 18
just leave all settings to Auto apart from ram timings, ram volt (1.65v), cpu volt and cpu multiplier, as one post mentioned 19 and 21x seem to work best, just set your cpu volt and you can leave all other volt settings to Auto.
post #15 of 18
Thread Starter 
Thanks guys! From reading all your posts from my last post last night. It seems to be that my cooler is inadequate. Which sucks to say it looks so pretty haha. I was only doing short tests to keep upping the OC until I got to a point where I was satisfied to run a REALLY long test.

Deathmage I'm not using a stock cooler. Yeah 3.61 I think 19x 190. I'm thinking sticking with an aircooler. My system is set that way until i decide to spend $600 on a water cool setup for just CPU.

What confused me was the new QPI. From what I read, obviously I didn't understand correctly, is that you only raise the QPI and I was like wth, that didn't make sense. So yeah I readjusted it later and the temps dropped 10 degrees and was still stable.

To sum it up:
1. Better air cooler or lower clock speeds
2. Odd number multipliers work better for overclocking on the i5-760

Few questions:
1. DEATHMAGE: Where is the unlink option normally found? I couldn't find it on this board. My old mobo I was easily able to find the unlink option.
2. Is odd number multipliers better for this CPU true or a myth?
3. Right now my bios shows my RAM running at 1333 even though it's rated at 1600 so do I still need to bump the DRAM to 1.65v when I bump the speed up?
4. Ram ratio I've been hearing about this but I'm not sure. What's a good ram ratio? It was at 2:8 when I overclocked last night.
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post #16 of 18
Quote:
Originally Posted by oddmut View Post
2. Is odd number multipliers better for this CPU true or a myth?
3. Right now my bios shows my RAM running at 1333 even though it's rated at 1600 so do I still need to bump the DRAM to 1.65v when I bump the speed up?
4. Ram ratio I've been hearing about this but I'm not sure. What's a good ram ratio? It was at 2:8 when I overclocked last night.
1. odd number multiplier is true, Im not sure why it works like that but 19 or 21 is just better.
2. You need to get it so that the ram and cpu run together, i.e my cpu runs at 4ghz (190x21) and then the ram runs at just under 1600mhz. The ram volt should be 1.65v standard, but you can leave the ram volt to auto
post #17 of 18
Thread Starter 
I decided to do a little testing and searching.
- i5 runs a cooler than core2duo (e4400) so what was stated above was wrong. i5 is a 32nm and the core2duo is 45nm.
- i'm running prime95 and my temps are lower than but about the same intelburntest so the above state on this was not too correct.

all i did this time was adjusted the bclock frequency to 162. Voltage auto. Yes I know. Testing stuff.

stock idle temps 29 29 30 27
stock load temps 53 54 52 51
Do you guys think my CPU cooler is not seated right or thermal is not on properly?

intelburntest temps (after adjusting bclock frequency)
idle temps 34 34 35 32
load temps 71 73 67 70

prime95 temps (after adjusting bclock frequency)
idle temps 34 34 35 32
load temps 68 69 65 68

cpuz:
core voltage 1.264
core speed 3564.1 mhz x22 162mhz (turbo is on, without settings are x21)
DRAM frequency 810 mhz
FSB: DRAM 2:10

Any opinions?
Edited by oddmut - 1/7/11 at 7:26pm
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post #18 of 18
Quote:
Originally Posted by oddmut View Post
I decided to do a little testing and searching.
- i5 runs a cooler than core2duo (e4400) so what was stated above was wrong. i5 is a 32nm and the core2duo is 45nm.
Any opinions?
Except..
i5 7xx are 45nm parts, while E4400s are 65nm parts.

i5 7xx are 95w parts, and E4400s are 65w parts. i5 7xx therefore are "hotter."

What was posted above is dead on correct.

Though, you may be thinking of the dual core i5 6xx parts. They're 32nm. That's not what you're using, however.
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