This is a split board - You can return to the Split List for other boards.

BCLK Sandry Bridge non K Overclocking Safe?

#1RaikozyPosted 12/2/2013 1:20:28 PM
So I have i7 2600 for 2 years I guess and I have been running it x42 (limited overclocking) and according to windows my max speed is 4.1ghz. I was under the assumption that it will be 4.2ghz because the stock bclk is 100mhz but it actually translates to 97.6 I think. So Im just wondering, I know it causes instability, but is it fine to just up the bclk from stock of 100mhz (1000) to just 2 (1020) or at extreme cases 3 (1030mhz)? Thank you
#2ThescyyPosted 12/2/2013 1:44:45 PM
You are usually fine if you are 5-7mhz from 100mhz. That being said you should be getting 100mhz, it shouldn't be sitting lower at 97mhz if it's set to default.

You don't have hyper-V installed do you? That is known to cause programs like cpu-z to report bclk of several mhz lower than what it actually is.
---
i7 3930k @ 4.5Ghz | H220 | asrock x79 extreme 9 | 16GB 1600mhz ram | SLI GTX 780 | Samsung 830 256GB SSD | 8TB HDDs | EVGA Supernova 1300 G2 | Fractal design R4
#3WyzeGyePosted 12/2/2013 1:50:14 PM
Doesn't hurt to try
---
http://pcpartpicker.com/b/GCJ
http://youtu.be/AEKc-vNv_rU - updated 11/21/2013
#4Raikozy(Topic Creator)Posted 12/2/2013 2:21:08 PM
Thank you for all your responses, I never or dont know if I have hyper v in my computer, I'm going to check it now
#5ThescyyPosted 12/2/2013 2:34:18 PM
Raikozy posted...
Thank you for all your responses, I never or dont know if I have hyper v in my computer, I'm going to check it now


You would know if you had it enabled as you have to enable it manually in windows 8. It's Microsoft's Virtualization software.
---
i7 3930k @ 4.5Ghz | H220 | asrock x79 extreme 9 | 16GB 1600mhz ram | SLI GTX 780 | Samsung 830 256GB SSD | 8TB HDDs | EVGA Supernova 1300 G2 | Fractal design R4
#6Raikozy(Topic Creator)Posted 12/2/2013 2:38:22 PM
I just enable hyper v (it was disabled before) and it restarted my computer. While at it, I increase my bclk from 102 to 103, and something weird happen. I rebooted my computer and now taskmanager shows my cpu max speed as 3.49ghz instead of 4.1 ghz, I was under the assumption that it would say 4.2 or 3 ghz instead. In cpu z I also noticed that my bclk doesnt stay in a fix number, it goes up and down which is extremely weird
#7ThescyyPosted 12/2/2013 2:39:48 PM
Raikozy posted...
I just enable hyper v (it was disabled before) and it restarted my computer. While at it, I increase my bclk from 102 to 103, and something weird happen. I rebooted my computer and now taskmanager shows my cpu max speed as 3.49ghz instead of 4.1 ghz, I was under the assumption that it would say 4.2 or 3 ghz instead. In cpu z I also noticed that my bclk doesnt stay in a fix number, it goes up and down which is extremely weird


Yeah, the up and down thing is the effect hyper-V has on how CPU-Z reads the BCLK. It is actually running at the set bclk, it just seems that hyper-V messes with the way cpu-Z and other programs read the bclk.
---
i7 3930k @ 4.5Ghz | H220 | asrock x79 extreme 9 | 16GB 1600mhz ram | SLI GTX 780 | Samsung 830 256GB SSD | 8TB HDDs | EVGA Supernova 1300 G2 | Fractal design R4
#8Raikozy(Topic Creator)Posted 12/2/2013 2:47:08 PM
Oh i see
#9ThescyyPosted 12/2/2013 3:06:19 PM
All that being said it is very odd that your bclk was at 97mhz. Is it set to default in the bios?
---
i7 3930k @ 4.5Ghz | H220 | asrock x79 extreme 9 | 16GB 1600mhz ram | SLI GTX 780 | Samsung 830 256GB SSD | 8TB HDDs | EVGA Supernova 1300 G2 | Fractal design R4