[Solved] Getting the best out of my system-i5 2500k build

yeah the 5.2ghz put me at 1.5v.
another thing i noticed, my ram is set at 11-11-11-28 while its meant to be at 9-9-9-24. lower the cas or maintain at the current 11-28?

hang on.. 11-28 is faster than 9-24? because i thought a lower cas meant faster ram... perhaps i just misunderstood things xD

im just ocing from the uefi bios, asrock has 5 or 6 presets in there but they all seem to put way too high of a core voltage. a friend of mine said i could hit 4.5ghz and maintain a stable oc with the stock voltage and still not worry about heat because of the c14.

but after looking at several 2500k guides/tips they all seem to contradict each other on several things so im not exactly sure on what settings i should keep the chip.

There are two measures of the "speed" of RAM-the clock speed (E.g. DDR3-1600MHz is faster than DDR3-1333MHz) and how tight the timings are (lower cas-tighter). Your stock settings are 9-9-9-24 (faster than 11-11-11-28 at the same clock speed), and 1600MHz clock speed. I'd probably recommend resetting it manually to its stock settings.

The C14 is a great cooler, so you might be able to do 4.5 GHz on stock voltage, but remember that nothing is guaranteed when overclocking. Your temperatures are really low--that's good, because it means you have a lot of room to overclock. The best way to overclock is to do it manually, without the ASRock presets.

The i5-2500k overclocks simply by raising its multiplier--you have a 100MHz base clock, multiplied by whatever your multiplier is. If you want to overclock, just go to the BIOS and change the CPU multiplier-it should be 33 at stock (33x100MHz=3300 MHz=3.3 GHz). My recommendation would be to bump it to 40 (4.0 GHz), and check your temperatures by stress-testing, then bump it up 100-200 MHz at a time until you hit your goal. If you start to get system crashes at a certain point, you can increase the CPU voltage--most people say between 1.3 and 1.4V is safe, I think Tom's uses 1.35V as its safe limit. Just keep bumping up your CPU speed and voltage (within safe limits) until you hit what you want--safe 24/7 temperatures for an i5-2500k would be <40C idle, <60C load. Hope that helps!

4.4ghz stable. 25*c idle-60*under load.

oh for sure, that one only ran for around 3 hours but i will have prime and intel burntest longer once i dont need the computer for work.

120gflops seems a bit low no?

i'll lower it a bit, hmm how does 1.25 sound?

xmp is enabled and the voltages on the ram is the exact same as it was before.


~~EDIT~~

strange i had it set to 1.250 on the screen shots up there but the system autos it to 1.320 only really noticed that now that u mentioned 1.320 is high. the 1.320 was used for 4.5ghz which was unstable (4.7 with 1.36v 5.0,5.2 were all stable for at least an hour with almost 1.4v )

hmm i've saved my preset at 4.4 with the 1.25 and loaded it like 6 times now and it stays at 1.320. strange, anything you guys would suggest in that case?

Did you change any other settings? What is your llc? You're using fixed vcore, I would suggest offset if you want it to lower when you idle.

Two high voltage on ram a bit lower

Stock is 1.5 mate

Hm strange. Mine is at 1.5 stock and xmp 1600 mhz

looking good.
Mine 4.5 ghz gives me only 112 Gflops with 1.285v

in prime im doing the middle one cant recall which setting because its running right now and i really dont wanna open it again and have 2 running xD

in ibt i just do the standard test as thats the one im told to go by, but on maximum i get an average of 127.7

i also changed my bios settings because i wasnt pleased with what i had above because it was the suggest oc by my mobo.
pretty much the same exact thing except that i reverted back to the stock i5 settings.
changed multiplier
pll ov-on
speed step-on
core current limit from 150 to 230,
turbo power limit
short 230-from 203
long 200-from 180
spread spec-off

all the voltages i left at stock except vcore, @1.250-fixed (the fixed voltage really isnt fixed with asrock)

this seems to run smooth (been running prime since 1am, 20 mins after my last post) and if this doesnt work out ill revert to my modified suggested 4.4.


EDIT.. prime95 is running in large.

no no, if i said off i typed wrong lol... been working almost 20 hours a day on my game engine.. tired as hell.

i set my offset to +.050 but it was jumping near the 1.4's on 4.4ghz.

this has been running stable for 20 hours or so now (since 1am).. if it finishes the full 24 hour i think i can call it stable?

i'll save this setting so i dont lose it because its pretty stable from what the tests are showing.

i'll give the offset another chance after this test finishes (probably gonna do the test tomorrow because i need to sleep tonight for longer then 1 hour)




from 1am-5:50am (28 hours?) this has been 100% stable, call this a stable setting or go try thr offset?


btw i don tthink i've said this in this thread yet. i really appreciate all the help, thanks guys

This topic has been closed by Mousemonkey