Overclocking 2500k and 560ti

Tar.Aldarion

Hello I am buying this computer:



I have never OCed before. I plan to try and overclock the gfx and cpu, I am looking at fans. The scythe mugen 2 for 33e has been suggested, so would you recommend getting that or trying to OC on the stock cooler? I am told I might get 4 with the stock or 4.5 with the mugen. I would get the mugen if the extra speed was worth it? And should I get extra fans for the case and if so which?

Thanks!

Tar.Aldarion

I think I've settled on the cooler and fan at the bottom and will try to OC

Komplett-Tech: Ryan

On the stock cooler you should easilly hit 4ghz, anything aftermarket should get you to 4.5 easy enough. although, there isn't much out there that will stress the system you are going to get unless you have a 1920*1080 monitor and want to run with Full AA and AF. The most important thing to consider is airflow through the case. A rule of thumb should be, cool air in the bottom/front and warm air out the back/top. And remember, don't have too mch air being pumped in and not enough out.

Tar.Aldarion

Hey thanks for the great reply, I will be gaming on 1080p yep and will be looking at full settings heh.

I've added two more 14cm fans to the build, so the case with have 5 fans(2 stock + 3 extra) and the after market cpu cooler. So i should be aiming the fans at the front inwards and the ones at the back outwards? heh. Never added fans or such to a case!

Here is the build I think I'll order today

darego

your build is nearly identical to mine apart from mobo and case! i'm going to start messing around with oc'ing today or tomorrow and i'll let you know how i get on. i just need to add 2 xilence fans onto the case (i put one in last week and it was sooo damn noisy when connected straight to the psu on full blast so i can only imagine what they will all sound like in it:D).

i also have that scythe mugen heat sink that i will eventually put in. it looks like that it going to be a tight squeeze though between that and the top of the ripjaws ram

Tar.Aldarion

Cool let me know! Hopefully one of them won't be too loud eek!

savemejebus

almost identical build to mine but I chose the hyper 212+ cooler, more of a pain to put on but for oc'ing it got better reviews than the Freezer (which i have on 2 other machines that i don't OC)

Elmidena

I've a build quite identical and it's loving absolutely max settings with no performance issue, but I didn't overclock it. Went on a rampage spree with a grenade launcher in a finale in expert Dark Carnival finale in l4d2 to test the rendering and absolutely no blip whatsoever (forget the res, 1920x1080 I think, it's one I wasn't familiar with before anyway).

Tar.Aldarion

savemejebus wrote: »

almost identical build to mine but I chose the hyper 212+ cooler, more of a pain to put on but for oc'ing it got better reviews than the Freezer (which i have on 2 other machines that i don't OC)

Was thinking of that one but didn't see it on HVS! i was thinking mugen or else freezer + 3 case fans, went with the latter

Sunshine! wrote: »

I've a build quite identical and it's loving absolutely max settings with no performance issue, but I didn't overclock it. Went on a rampage spree with a grenade launcher in a finale in expert Dark Carnival finale in l4d2 to test the rendering and absolutely no blip whatsoever (forget the res, 1920x1080 I think, it's one I wasn't familiar with before anyway).

Great stuff, and without OCing, that's what i likes to hear

Fluffy88

I have never OC'ed before and I know nothing about how to do it but I plan to build a system similar to this one someday and I want to give a stab at OC'ing it so I was just doing a bit of reading up on it and found some very nice articles.

http://www.overclock.net/intel-cpus/225371-intel-cpu-essentials-collected-guides.html
I would recommend this article listed under, "Newbie Guide to Overclocking" I read it and the linked memory article fully and I feel like an expert now :P I know they are a little old, but it's always good to have some kind of understanding of what you are going to do.
There is articles and posts relating to the 2500k on the forum too, but I haven't read any of those.

Best of luck

Tar.Aldarion

Thanks fluffy, you are a great help!

Fluffy88

Have you got the parts yet??

Tar.Aldarion

Nope, since tuesday night it has not updated...at that time it said they were sent from germany to Ireland. :S should be here by now

Fluffy88

I might buy from scan even if it's a little more just to get it quick, coz that waiting would kill me :P

I hope it all goes well for you, post pics of it in the thread when your done so we can drool over it's awesome power.

Tar.Aldarion

Hmm well I've been in my gf house for a few days so it could be there, I haven't even checked, I'm just going by what the tracking says! Somebody here paid on tues and got it on friday last week, still scan will be quicker


i will post pics to my badly made first build all right

Komplett-Tech: Ryan

Tar.Aldarion wrote: »

Hmm well I've been in my gf house for a few days so it could be there, I haven't even checked, I'm just going by what the tracking says! Somebody here paid on tues and got it on friday last week, still scan will be quicker


i will post pics to my badly made first build all right

If you need any help or advise just give me a shout. Also, if you're in Dublin just holla and i'm sure i can meet you to help you out over the weekend.

Tar.Aldarion

Thanks, I live in dublin, will ask on here when trouble arises

Armedocr

Quite similar to the system I ordered yesterday.

8GB-Kit G.Skill RipJaws-X PC3-12800U CL9
No HV20G331DE 55,95 € 1 55,95 €
Antec Truepower New 650W
No HVR650ADDE 96,37 € 1 96,37 €
ASUS P8P67 PRO Rev 3.0, Sockel 1155, ATX, DDR3
No HV1139UMDE 140,75 € 1 140,75 €
Cooler Master 690 II Advanced Midi-Tower - Window Edition, ohne Netzteil
No HV203FBSDE 91,79 € 1 91,79 €
Crucial M4 64GB SSD 6,4cm (2,5")
No HV12C464DE 94,38 € 1 94,38 €
Intel Core i5-2500K Box, LGA1155
No HV20I5K5DE 177,10 € 1 177,10 €
Noctua NH-D14, Sockel AM2/AM2+/AM3/775/1366/1156
No HV30NO14DE 67,99 € 1 67,99 €
Palit Geforce GTX 570 Sonic, 1280MB, PCI-Express
No HV1022XZDE 277,31 € 1 277,31 €
Samsung SpinPoint F3 1000GB, SATA II (HD103SJ)
No HV1310F3DE

Really looking forward to cracking on with the build and I'll definitely be overclocking, Good luck!

Armedocr

Ugh fail did not realize how old the thread was........

Tar.Aldarion

Ah it's only a few weeks yet and i havent bothered trying overcloking yet, will soon. I want that 2500 fps in css

Tar.Aldarion

also if anybody has a nice guide on ocing a 2500k let me know :P

sink

Tar.Aldarion wrote: »

also if anybody has a nice guide on ocing a 2500k let me know :P

This is for the GD55 but the GD53 should be very similar. I used it and got up to 4.6GHz.

http://www.overclock.net/intel-motherboards/963798-msi-p67a-gd55-review-oc-guide.html

Tar.Aldarion

sink wrote: »

This is for the GD55 but the GD53 should be very similar. I used it and got up to 4.6GHz.

http://www.overclock.net/intel-motherboards/963798-msi-p67a-gd55-review-oc-guide.html

Thanks sink, what cooler do you have? and what temps do you get to? I was planning on trying 4.5/4.6 myself on a http://www.arctic.ac/en/p/detail?sArticle=4.%3F

will have a read of that link now thanks

Tar.Aldarion

what i am confused about there was did he jsut jump up to those levels straight away or gradually do it. say i change the multiplier to 45 and volts to 1.3 straight away, leaving ram voltage alone, would that be a bad idea ?

sink

Tar.Aldarion wrote: »

Thanks sink, what cooler do you have? and what temps do you get to? I was planning on trying 4.5/4.6 myself on a http://www.arctic.ac/en/p/detail?sArticle=4.%3F

will have a read of that link now thanks

I have a corsair A70, max temp is 58° C under stress test. Here a thread on my build.

http://www.boards.ie/vbulletin/showthread.php?t=2056207859

sink

Tar.Aldarion wrote: »

what i am confused about there was did he jsut jump up to those levels straight away or gradually do it. say i change the multiplier to 45 and volts to 1.3 straight away, leaving ram voltage alone, would that be a bad idea ?

That's the way I did it. Almost everyone seems to be able to get it to at least 4.5GHz with a decent cooler so it's a good starting point.

Tar.Aldarion

thanks, looks great, nice computer!

Link was great too thanks, just trying to figure how far i should put up values to start off, then i will start tweaking!
Will start off at 45 and 1.3v so, i dont know anything about changing ram from 1.5v or should i ever so ill leave that.

sink

Tar.Aldarion wrote: »

thanks, looks great, nice computer!

Link was great too thanks, just trying to figure how far i should put up values to start off, then i will start tweaking!
Will start off at 45 and 1.3v so, i dont know anything about changing ram from 1.5v or should i ever so ill leave that.

If you get a BSOD at those settings it could be the ram voltage being too low. From my experience you always need to up the ram voltage with a large CPU overclock. Most good DDR3 RAM has a rated maximum of 1.65V, check your manufacturer specs and so long as you keep it below the maximum you should be fine. Obviously the higher it is, more heat is produced and more power is used, so just give it enough voltage so that it's stable.

Tar.Aldarion

Thanks will do, have this http://www1.hardwareversand.de/articledetail.jsp?agid=1193&aid=44321&lid=2

Was told the p67 boards don't like ram that runs at 1.65 volts so I'll keep it as low as i can!

Tar.Aldarion

so far 4.3ghz was stable at 1.3v and 1.5v ram

4.4ghz crashed so i am trying it with 1.310v and 1.514v ram. not sure if i need to be changing ram voltage at all, and maybe i should be upping the cpu voltage alone?

Tar.Aldarion

getting problems at 4.5 @ 1.320v. I have ram back to 1.5v as I was not sure this was affecting anything.


I see people change 'QPI/VTT voltage' whatever this is?

Tar.Aldarion

1.33 was fine for 4.5 for an hour.


1.37 is failing for 4.6 after 2 mins.

Going for 1.4v and 4.6ghz to see what happens. If that fails then I will stick with 4.5 and run the test for longer. If it passes at 4.6ghz I will try to lower vcore bit by bit and stay at that.

Tar.Aldarion

Well I've ran it at 4.6ghz and 1.376v for a few hours and these are the temps I get, average of 72C, high of 76C.

Are these acceptable/safe for 24/7? I know normally my chip wont be this high gaming etc.

sink

Tar.Aldarion wrote: »

Well I've ran it at 4.6ghz and 1.376v for a few hours and these are the temps I get, average of 72C, high of 76C.

Are these acceptable/safe for 24/7? I know normally my chip wont be this high gaming etc.

That's way too hot. 65C would be the limit, maybe let the high get a little over when stressing but you want the average below 65C or your chip will have a very limited lifespan. I'm running mine with a max of 58C at 4.6GHz.

Also your voltage is high for that chip, going by my own experience and other peoples posts you shouldn't need that much voltage to reach 4.6Ghz, more like 1.315V. Excess voltage is also likely what's causing your chip to get that hot.

IMO your RAM voltage is what's causing the problem 1.5V is what you should be running it at stock, you're going 40% above that. Try 4.5GHz @ 1.315V which should be enough voltage for your CPU and your RAM @ 1.645V, and manually set the latency to stock CL 9-9-9-24. If you're stable at that you can then trim back the RAM voltage and latency.

I have my RAM running stable for months at 1.6V, it wouldn't even successfully boot windows at 1.5V

Tar.Aldarion

sink wrote: »

That's way too hot. 65C would be the limit, maybe let the high get a little over when stressing but you want the average below 65C or your chip will have a very limited lifespan. I'm running mine with a max of 58C at 4.6GHz.

Also your voltage is high for that chip, going by my own experience and other peoples posts you shouldn't need that much voltage to reach 4.6Ghz, more like 1.315V. Excess voltage is also likely what's causing your chip to get that hot.

IMO your RAM voltage is what's causing the problem 1.5V is what you should be running it at stock, you're going 40% above that. Try 4.5GHz @ 1.315V which should be enough voltage for your CPU and your RAM @ 1.645V, and manually set the latency to stock CL 9-9-9-24. If you're stable at that you can then trim back the RAM voltage and latency.

I have my RAM running stable for months at 1.6V, it wouldn't even successfully boot windows at 1.5V

Oh is it? crap! most people were telling me under 80 max and everything is fine.

for 4.5 I could fo 1.33 fine, but needed a big jump up for 4.6, 1.375. it was bsoding 2 mins in otherwise, what do you mean that im going 40% above that? I have it set at 1.5? my ram latency should be 9-9-9-24 by default, so should I bother setting it manually? Did you trim back the timings on yours or leave em at that?

So basically I should lower cpu voltage while raising ram voltage to 1.55-1.645?


i will try that now, i know you say my V is too high, i seem to be in the range seen on a lot of forums but i dont think they went near ram voltage.

sink

Tar.Aldarion wrote: »

Oh is it? crap! most people were telling me under 80 max and everything is fine.

for 4.5 I could fo 1.33 fine, but needed a big jump up for 4.6, 1.375. it was bsoding 2 mins in otherwise, what do you mean that im going 40% above that? I have it set at 1.5? my ram latency should be 9-9-9-24 by default, so should I bother setting it manually? Did you trim back the timings on yours or leave em at that?

So basically I should lower cpu voltage while raising ram voltage to 1.55-1.645?

Don't know who was telling you 80C was OK. That would melt your processor in no time.

http://ark.intel.com/products/52210/Intel-Core-i5-2500K-Processor-(6M-Cache-3_30-GHz)

The TCase of the 2500K is 72.6C, that is the maximum that CPU can handle before suffering degradation and going over that will damage your CPU in no time. In reality you want to keep it a good bit below that to give you a bit of head room all it takes is a hot day a bit of dust build up to push your core temp up a few degrees. The temperature your CPU runs at over it's life will directly impact it's lifespan. If you want to keep it a good number of years you want it to be cool

I just have a feeling that your RAM voltage is too low. I'm no expert I've only overclocked a few CPU's but for every one of them I've had to up the RAM voltage for it to be stable. You won't need to keep it at 1.645V permanently, this is just to rule our under voltage as your problem. Your RAM won't be damaged at that voltage and once you know it's not under voltage that's causing the problem you can look at other factors. If it is stable at that, then it is under voltage that was causing the problem and you can try lowering it and seeing what the minimum voltage it will take to be stable.

Tar.Aldarion

ah ok, they said that that tcase didnt matter, and that mid 70s 24/7 use was fine, and that it was the tmax of 98C that was the real figure to worry about. And that since i would never be near prime95 figures anyway that those figures are fine.

Still i am uncomfortable with that hot a chip as you say. I dont want a dead chip too fast!
I put the ram voltage up to 1.645 and even then got bsod in prime at 1.33, 1.34, 1.35, 1.36,and 1.37 so the ram is ruled out, i think its my chip.

still that will yield a high temp id guess so i might have to go to 4.5ghz

Tar.Aldarion

think ill drop to 4.5 as sink said that is very hot! Am testing out 4.5 at 1.335 which should run fine.

So I can choose between:

4.5Ghz @ 1.335v with temps of 66-70C at highest prime 95
4.6Ghz @ 1.375v with temps of 72-76C at highest prime 95


I wish it wouldnt take so much more voltage to jump to 4.6ghz

Tar.Aldarion

i thought it was stable 4.5Ghz @ 1.335v but after a few hours it failed the stress test, same again with all voltages up to 1.35. testing 1.355 atm, so im not too far off the 1.375 needed for 4.6 after all.

Tar.Aldarion

think ill settle for 1.352v @ 4.5Ghz. 1 core is 60, the other cores are generally 65-67 with a high of 70 after a few hours. Temps will generally be like 10-20C under these gaming anyway. Still, it might crash yet!

wish my chip wasnt so power hungry, as it would be easier to go higher then!

Tar.Aldarion

well that was ok for 4 hours so ill just leave it at that until i see a crash during normal use. gonna test temps using counter strike source to see what my real temps will be!

savemejebus

Hmm, long time since i overclocked properly but it used to be good to leave it running prime 95 or occt for 24 hours so that you can be sure it's stable and you won't get any file corruption.

Tar.Aldarion

will do that when i get the chance! As I really should be sure.

for now i will game!

Tar.Aldarion

gaming for a few hours max settings, highest temp of package is 60. this will do i think!

tuxy

sink wrote: »

Don't know who was telling you 80C was OK. That would melt your processor in no time.

http://ark.intel.com/products/52210/Intel-Core-i5-2500K-Processor-(6M-Cache-3_30-GHz)

The TCase of the 2500K is 72.6C, that is the maximum that CPU can handle before suffering degradation and going over that will damage your CPU in no time.

I don't think this is correct. Tcase is the max temperature as measured on the centre of the outside metal top of the processor.

TjMax max is the maximum heat of the core, which is what is measured by the sensor that gives the reading in bios and OS(windows ect).
I believe tjmak for the 2500k is about 98C

*Figured I would reply to this even though it's old and my people use old threads for guides

Tar.Aldarion

my temps never go near the stress tests even when gaming for ages etc. fairly sure i could go much that 4.5 because of that even though the tests were hot but I shan't for safety

/old thread update