• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

how do I get my 2500k to go back to 1.6 at idle after overclocking?

Page 2 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.
mrjoltcola said:
But the "stock" voltage of your chip is considered 1.225-1.25v.
Click to expand...
thats under LOAD and this whole thread is about voltage and clocks at IDLE. at IDLE its below 1.000 at stock settings. so again its running at almost 25% more voltage if I OC since this mobo does not lower voltage once I use anything besides auto. I have tried to be clear about that by mentioning IDLE in my replies to you.
 
Last edited:
No, the whole thread isn't about IDLE, you asked is it "OK" to run at a given voltage and are speaking as if you are 25% overvolted. That is what I'm addressing and it has nothing to do with IDLE vs LOAD, it has to do with the stock voltage of the chip. At idle it is undervolted and underclocked (assuming you have those states enabled). At load it is not overvolted, it is stock.
 
I'm not looking to get into an argument, I was trying to reassure you. I'll try to find the specs on ark.intel to provide.
 
there is really nothing to argue about. when everything is left on stock settings the cpu will idle down and voltage will drop below 1.000 at IDLE. if I change voltage at all from auto setting, the voltage will stay at whatever I set it to even at idle. in this case is that means 1.230.
 
Earlier in the thread you asked:

toyota said:
so other than losing the power saving features is having the voltage at 1.23 all the time really not an issue then?
Click to expand...

And I was answering that with a "No, it isn't an issue", because 1.23v is approximately stock voltage and Intel has rated that chip to run for the lifespan(decades) at that voltage. You are not overvolted (more than maybe 0.0005v at 37x. The only concern you are left with is power usage, in my opinion.

I'm aware that I have not helped answer your other questions, and it was not my intent to. I think the offset overclock method is more desireable, because it would give you your lower voltage at idle, but I haven't been able to make it work well myself on ASUS DIGI-VRM boards either. Good luck.
 
this is becoming an Abbott and Costello routine. I really do not know what else to say to make you understand. it idles below 1.000 with everything at stock but if I change the voltage to oc, it will then idle at the full voltage even at idle. I think everyone seem to get that by now. what you keep telling me about it being only slightly above stock load voltage has nothing to do with it.

here comes the stupid car analogy. if my car idles at 700 rpm when stock but 4000 rpm when modded then that is a problem i would not want. it does not matter that 4000 rpm itself is safe because the question is can I get the idle rpm to drop down like it did at stock.
 
Last edited:
toyota said:
again there is no offset mode in the bios.
Click to expand...

II wouldn't sweat it then -- no biggie.

I just tested my i3-530 at idle …

1.240v … 24-25C
0.960v … 22-23C

So at idle that huge difference in vcore doesn't make much difference in temps ~ 2C. Even at a much higher vcore, with the CPU pretty well shutting down when idle it doesn’t consume much more energy (stock HSF).
 
Last edited:
Toyota - If you set the multiplier to 42x while on auto voltage, it should hit around 1.28v. It might not say it in the Bios but if you run Prime or any other stress test, it should be around that voltage. I had 4.2ghz on auto voltage with my MSI P67a-c43.
 
SLK said:
Toyota - If you set the multiplier to 42x while on auto voltage, it should hit around 1.28v. It might not say it in the Bios but if you run Prime or any other stress test, it should be around that voltage. I had 4.2ghz on auto voltage with my MSI P67a-c43.
Click to expand...
when I do that it goes to 1.32 though.
 
Blastman said:
I wouldn't sweat it then -- no biggie.

I just tested my i3-530 at idle …

1.240v … 24-25C
0.960v … 22-23C

So at idle that huge difference in vcore doesn't make much difference in temps ~ 2C. Even at a much higher vcore, with the CPU pretty well shutting down when idle it doesn’t consume much more energy (stock HSF).
Click to expand...
yeah probably no big deal at all. its just silly that I have to pump all that extra voltage into the cpu for no reason. I will make sure my next board has some type of offset option.
 
toyota said:
yeah probably no big deal at all. its just silly that I have to pump all that extra voltage into the cpu for no reason.
Click to expand...
I agree -- that's why I've got my CPU undervolted at stock speeds. My i3 auto vcore sets 1.240v. … which is way too high for stock settings 2.93. Heck I can run 4.0Ghz at 1.21v -- less than that.

With a undervolt to 1.01 my CPU doesn't lower the vcore at idle -- it stays at 1.01 all the time, but it amounts to virtually nothing at idle anyway (1.01 vs 0.960).

With my overclock to 4.0Ghz, I've been just setting it at 1.21v. So when overclocked my vcore is not dropping at idle either. I have an offset option in the BIOS, so I could run it at 4.0 with an offset -- but I haven't even tried doing it that way yet. I suppose that if I ran it 24/7 overclocked I would be more inclined to look at running with that option -- but my temps don't show much difference at idle anyway.
 
Last edited:
Wait so it's not going back to 1.6 ghz in idle or is it just the voltage that doesn't go down? In my motherboard the speed drops to 1.6 ghz but the voltage stays the same so it's like:

IDLE: 1.6 ghz 1.368 Vcore
LOAD: 4.5 ghz 1.36-1.368 Vcore
 
badb0y said:
Wait so it's not going back to 1.6 ghz in idle or is it just the voltage that doesn't go down? In my motherboard the speed drops to 1.6 ghz but the voltage stays the same so it's like:

IDLE: 1.6 ghz 1.368 Vcore
LOAD: 4.5 ghz 1.36-1.368 Vcore
Click to expand...
neither would go down. once I move the voltage away from auto it will not use any power saving features. I am going to experiment with some turbo modes again and see how that goes. the voltage will do different things under load based on exactly how I use or dont use turbo so its really irritating to keep testing this over and over at different settings. plus I have to F6 every time before I change anything or some settings don't get applied.

if I do nothing but disable turbo, and set the multi to 42 then my voltage will go to almost 1.35. that with voltage on auto. if I go back to stock everything and enable turbo to 4.2/4.3/4.4/4.5 it will use 1.31 to 1.32 volts with 4 cores under load at 4.2. it will also lock up in IBT though. it will not blue screen though which it does when its voltage related though. if I just enable all 4 turbo cores to 4.2 then it normally goes to 1.304 but might hit 1.312 a couple of times. it seems stable when I do that though.

lol, and I though overclocking Sandy Bridge was supposed to be easy. if I had a board that allowed offset voltage and did not disable power saving features when manually adjust voltage then I would be able to do exactly what I am trying to do though. I cant believe MSI did not do a better job in those respects for this board.

EDIT: I just checked in RE 5 and it was using over 1.34 volts there which is WAY more than it should need. that was voltage left on auto with all 4 cores on 4.2 for turbo. it seems odd that voltage is higher in games under less load than using IBT. remember I can run it at 1.230 for 4.2 if I manually set voltage.

so at idle I think I would rather use 15 more watts at 4.2 and 1.23 then to have have it use 40 more watts than necessary under load if voltage is left on auto. sure it may sit at idle 90% of the time but that extra wattage under load can push things a bit when the rest of the system is also being pushed at the same time.
 
Last edited:
remember I can run it at 1.230 for 4.2 if I manually set voltage.
Click to expand...
Even if I overclock and manually set the vcore (3.2, 1.20v) my i3 will drop down to a 9x multiplier (1.3Ghz) from default 22x -- IF I set my power profile to Portable/Laptop (Windows XP). If I set the power options to Home/Office Desk, my i3 will not drop down to a 9x multiplier. Check your power options/settings in Windows.
 
Blastman said:
Even if I overclock and manually set the vcore (3.2, 1.20v) my i3 will drop down to a 9x multiplier (1.3Ghz) from default 22x -- IF I set my power profile to Portable/Laptop (Windows XP). If I set the power options to Home/Office Desk, my i3 will not drop down to a 9x multiplier. Check your power options/settings in Windows.
Click to expand...
again none of that will have an impact once I adjust the voltage on this board. if voltage is left on auto then all that stuff will work.
 
Last edited:
I'm assuming EIST hasn't been disabled in the BIOS once you set vcore maually? It should work like my setup -- pretty strange you can't get it to work.
 
Last edited:
This thread is amazing, how many times does the OP have to repeat himself. Toyota you have nothing to worry about other than possibly a $1 a year higher electricity bill. You will not damage the chip at that voltage.
 
Yes, but why is it not downclocking at idle? It is like turbo is disabled and all C states, speedstep also when the OP clearly stated that they are not.
 
is there bios update for the board? might fix the issue?
 
Shmee said:
is there bios update for the board? might fix the issue?
Click to expand...
I have the latest bios. I guess its just something they were not concerned with at this level of mobo. oh well its just more reason to get a new mobo and Ivy Bridge cpu when summer gets here. 😀
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top