Stock voltages and frequencies?
hello,
I recently finished building a core i7 system. I'm now going to go ahead (after leak testing) and start setting it up. However, I wanted to ask first about what values I should enter for voltages and frequencies for the various components (IOH, ICH, QPI, Uncore etc)? What are considered "stock" values?
Re: Stock voltages and frequencies?
Quote:
Originally Posted by
AD-15
hello,
I recently finished building a core i7 system. I'm now going to go ahead (after leak testing) and start setting it up. However, I wanted to ask first about what values I should enter for voltages and frequencies for the various components (IOH, ICH, QPI, Uncore etc)? What are considered "stock" values?
Unless you want to achieve the magical 4GHz, or really are so concerned with power that you want to save every watt possible, leave them at auto. I can dig up the figures if it is really that important to you, but considering I can easily get a stable 3.8GHz without setting them. (Any yes, I have mine clocked at 3.6GHz, mainly so I can reduce the fan speeds and make my system quieter. I don't like running the chip over 70 degrees.)
Re: Stock voltages and frequencies?
hello,
It would be really great if you could help me dig up some figures. I don't want to leave anything on auto, my mobo just shot the voltage on the DRAM bus up to 1.8V. If I hadn't been looking at the hardware monitor, I'd have fried RAM right now. Do you think it would be OK, it was only like that for about 1-2 minutes.
Re: Stock voltages and frequencies?
Quote:
Originally Posted by
AD-15
hello,
It would be really great if you could help me dig up some figures. I don't want to leave anything on auto, my mobo just shot the voltage on the DRAM bus up to 1.8V. If I hadn't been looking at the hardware monitor, I'd have fried RAM right now. Do you think it would be OK, it was only like that for about 1-2 minutes.
Have you read my guide? I specifically said DRAM voltage and timings MUST be set manually. I think I wasn't explict enough as to why, but this is one of the reasons. Without setting them you can run your RAM at to higher frequency, or fry it with overvoltage.
Re: Stock voltages and frequencies?
hello,
Well, I've sorted it now, and there doesn't seem to be damage. Any ideas on how I can check?
I've gone into the BIOS and I've manually set all the voltages to the minumum in the range:
CPU - 1.085V
CPU PLL- 1/812V
QPI/DRAM CORE - 1.177V
IOH - 1.111V
IOH PCIE - 1.508V
ICH - 1.111V
ICH PCIE - 1.508V
DRAM - 1.508V
Do these look OK? The CPU will probably claim considering I've enabled EIST, I think.
Re: Stock voltages and frequencies?
Quote:
Originally Posted by
AD-15
hello,
Well, I've sorted it now, and there doesn't seem to be damage. Any ideas on how I can check?
I've gone into the BIOS and I've manually set all the voltages to the minumum in the range:
CPU - 1.085V
CPU PLL- 1.812V
QPI/DRAM CORE - 1.177V
IOH - 1.111V
IOH PCIE - 1.508V
ICH - 1.111V
ICH PCIE - 1.508V
DRAM - 1.508V
Do these look OK? The CPU will probably claim considering I've enabled EIST, I think.
Memtest86 to check your RAM. Takes about 40 minutes per cycle for 6GiBs of RAM.
And those voltages won't allow your system to boot, for one thing your VCore needs to be at least 1.2 volts. I'm looking for the voltages and freqencies etc for you, but the information is note easily obtainable.
I recommend this in the mean time:
CPU - 1.200 V
CPU PLL- AUTO
QPI/DRAM CORE - AUTO
IOH - AUTO
IOH PCIE - AUTO
ICH - AUTO
ICH PCIE - AUTO
DRAM - 1.64V (or whatever your RAM manufacturer recommends)
If you follow my guide, I can assure you leaving the voltages at AUTO will cause no damage if you intend to go to 3.8GHz. But once you get to 4.0GHz, that's when you need to get freaky with the voltages.
Re: Stock voltages and frequencies?
hello,
Thanks for that. :D
I'll see what happens if I try to boot into windows with these voltages, I'll up to 1.2V if need be as you suggested.
Incidentally, here are some frequencies I'm not too sure about:
UNCLCK - 2666MHz (DRAM is 1333)
QPI link rate - 4800MT/s.
Re: Stock voltages and frequencies?
Quote:
Originally Posted by
AD-15
hello,
Thanks for that. :D
I'll see what happens if I try to boot into windows with these voltages, I'll up to 1.2V if need be as you suggested.
Incidentally, here are some frequencies I'm not too sure about:
UNCLCK - 2666MHz (DRAM is 1333)
QPI link rate - 4800MT/s.
Not exactly sure what unit "T" is supposed to represent, but QPI link rate is the rate of data transfer over the QPI. 4.8GT/s is about right. When you overclock you might need to beef it up to a bit (which the X58 seems to support with no problem, I recall mine runs at 7.2GT/s) to prevent the system from getting bottlenecked. As I understand 4.8GT/s is saturated by the 965EE hence any overclocking would require to rate to be increased so Intel ship it with it set to 6.4GT/s.
UNCLCK is the clock of Uncore, which should be about twice the RAM frequency. Wasn't it you who linked me to an uncore guide in my OC guide?
Re: Stock voltages and frequencies?
Yes. :D
Always better to be 100% safe with a new system though. :p
I can't help but use a torch to look inside the case at the blocks for leaks every 5 minutes. :p
Re: Stock voltages and frequencies?
Quote:
Originally Posted by
AD-15
Yes. :D
Always better to be 100% safe with a new system though. :p
I can't help but use a torch to look inside the case at the blocks for leaks every 5 minutes. :p
I know the feeling, but when you build machines on a regular basis, you tend to get a little more confident. Me and my friends do insane things that most people would be godsmaked and too scared to do:
One, we often boot machines for the first time with the side on confident that we have wired all the fans up correctly.
Two, it took me 30 seconds flat to get an i7 920 up to 3.6GHz stable. We were all like "we know it can do 3.6GHz, so let's start there." That particular machine we couldn't get past 3.8GHz through, the motherboard just couldn't supply enough volts. :(
Re: Stock voltages and frequencies?
Quote:
Originally Posted by
nightkhaos
One, we often boot machines for the first time with the side on confident that we have wired all the fans up correctly.
I do that out of vain hope not confidence... and to stop me spilling my cup of tea inside...
Re: Stock voltages and frequencies?
Quote:
Originally Posted by
kingpotnoodle
I do that out of vain hope not confidence... and to stop me spilling my cup of tea inside...
Remind me never to buy a computer that you assembled.
Re: Stock voltages and frequencies?
:D
I've been working on it for a while now, but am having a few instability problems. :surprised:
Although I'm not having crashes under prime95, I'm getting freezes whenever there's a lot of HDD activity, like in a shut down, or when I'm transferring a lot of data.
Could it be an undervolt on some component like the SB?
I'd up the voltage, but I don't want to over volt. The same with auto, all the voltages were a lot higher than anything I found other users using on the internet.
And is the SB the IOH or the ICH?
Re: Stock voltages and frequencies?
pleanty of configs over here, i had to go to 1.4v on the cpu and up everything else a little.
http://www.xtremesystems.org/forums/...&highlight=r2e
Re: Stock voltages and frequencies?
Excellent, thanks dude!
Any idea on how I can test to see if the voltage I use is OK (other than conntecting a dozen external drives)? Is there some sort of "SB stress program?" :p
EDIT: BTW, I'm now running Intel Burn Test, with the CPU vcore set to 0.89V, and no problems so far (0.87 crashed). Temps are 34-39C with the fans on 40% and Laing D5 at minimum setting flow rate. Is this OK?
Re: Stock voltages and frequencies?
do you think its ok ?
is that core or socket temps ?
use everest utimate to get readings.
and what speeds the cpu running at ?
if its not 4ghz yet stop pissing about and set the multi to 20 and the blk to 200
as for the other voltages i would leave em at auto as most do until you hit 4ghz and start getting stability issues !
then you can up the pll to 1,85, nb/sb to 1.2 and you should be stable :)
to give it the once over run occt's stability tool http://www.ocbase.com/download.php?fileext=zip