super quick question...

Adam123

Adam123

Adam123

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Joined
11 Jan 2009
Posts
884
Puzzled...

I have a q6600 running @ 3.3Ghz (367 x 9 (slightly mis-matched to my ram, but that will change sooon)) on 1.45 Volts.... its very stable and runs at nice temps (i.e. prime95 for 16hrs+ and max temp was 52*C) - which i am very happy about. my pc might sound something like a jet engine, but hey, i wear PC350's and they block out anything!

I am on air, my specs are in my sig....

The question is...
I have noticed people with similar clocks on a Q6600 with volts of something stupid of 1.2v lmao, how is that possible lol? i think that if i was to lower mine then something bad will happen :eek:

LOL....

Adam
 
Adam123 said:
its very stable and runs at nice temps (i.e. prime95 for 16hrs+ and max temp was 52*C)

  • Q6600 2.4Ghz @ 3.3Ghz 1.45 Volts
  • Arctic Cooling Freezer 7 Pro CPU Cooler
  • Antec Nine Hundred Gaming Case
Click to expand...
Have you checked stability and temps with this diagnostic yet! :D

IntelBurnTest v1.9

Adam123 said:
I have noticed people with similar clocks on a Q6600 with volts of something stupid of 1.2v lmao, how is that possible lol? i think that if i was to lower mine then something bad will happen :eek:
Click to expand...
undervolting a CPU is not something most people think of or do when they are getting to grips with overclocking basics but as many of us have found out some processors can run 100% stable with a lot less voltage than stock (or VID as its called).

I used to think adding a ton of extra vCore and overclocking a chip to mahOOsive GHz was a free performance gain but sadly it isn't as the more you punp the voltages the more ££££ it costs to run the computer (over the course of a year it all adds up!).

As Ben M stated above some CPU's are manufactured more pure than others and require less voltage to run at the same speeds. In case you don't know what VID is it's just a pre-programmed (and pre-tested) voltage parameter that's coded into most modern CPU's. When the processor is installed in a motherboard the chipset looks up the VID and adjusts the vCore appropriately!

Overclocking/Undervolting junkies generally lick their lips at the thought of owning a low VID processor! :p

Core Temp 0.99.4

Download Coretemp to check your VID
 
LMAO the disclaimer scares the hell out of me :p

i dont kow if i am brave enough to do it :p

Coretemp shows me as being 1.3250vand in bios set as 1.45v, maybe i could try lowering it, whats the worse that could happed :p lmao
 
I might be wrong but it seems people tend to report the CPU-Z core voltage rather than their ctual BIOS settings. For example my new q6600 is using 1.29v running at 3.4GHz and according to Coretemp this is all at 48C 100% load or 26C idle

The BIOS says 1.375v @ 3.4GHz 48C idle.

VID is 1.275 BTW
 
I've had at least a dozen Q6600's through my hands and they've all needed high-ish BIOS settings to do 3.6GHz stable. The best of them needed 1.4V in BIOS but do bear in mind that PC voltages are largely nonsense as the so-called sensors are only a very rough indicator of what your voltage actually is. They are uncalibrated and they certainly are not accurate to 3 decimal places.

I have a Q6600 with a VID of 1.325V that does 3.8GHz with a BIOS setting of 1.575V on my X48 DFI board and that shows up at 1.42V in CPUz. In my J&W X48 board it only needs a BIOS voltage of 1.50V and it shows up at 1.325V in CPUz. The CPU needs the same amount of volts. In both cases it idles at about 45C and loads out at 60C. One board isn't supplying more voltage than the other, it's just reporting that it is.

Then you have to factor in a large/small allowance for VDroop and whether or not you have VDroop correction enabled and the fact that CPUs are also a lottery and what you have a right old mess.

It's a great place to play, to find out about your hardware and how it all inter-operates, just don't get too hung up on any of it, it's not real.
 
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