i5-750 Stock Voltage

wilko49 · 17 Jun 2010 at 16:37

Just wondering, how high have people been able to push the i5 750 at stock volts?

rickh · 17 Jun 2010 at 16:51

I think mine needed more volts at around 3.2ghz with turbo.
It's not really an issue though because they don't need that much more to be stable.

Tom's hardware got it up to 3.6 without extra volts, but mine definately needs more for 3.6 to be stable.

http://www.tomshardware.com/reviews/core-i5-750-overclock,2438-3.html

Mak3R · 17 Jun 2010 at 17:23

Mines at 3.6 just one notch up from stock. So at a guess anywhere between 3-3.4?

Thekwango · 17 Jun 2010 at 19:32

i'm sitting at 3.2(need to edit sig!!) but have had it at 3.4 on stock any didn't encounter any problems

setter · 17 Jun 2010 at 19:37

Do the i5's display a vid in coretemp like s775 intel cpu's? curious as theres no such display on i7, on s775 vid displayed in coretemp was the stock voltage setting i used.

Thekwango · 17 Jun 2010 at 19:43

VID is greyed out on my version of coretemp-so i guess that'd be a no. btw 'VID', is that the stock voltage or the voltage needed to actually fire the chip up? google confused me

lol

setter · 17 Jun 2010 at 19:50

On s775 cpu's, vid is basically the voltage intel states that each particular chip requires to run at its full stock speed, ie speedstep/c1e disabled. VID ranges vary depending on the particular chip, q6600 for example, mine was a 1.2750, some were 1.200 ono, the highest on the q6600 is 1.325, gennerally chips with lower vid's tend to clock higher, sometimes at the expense of running hotter.

Thekwango · 17 Jun 2010 at 20:04

ahhh right cheers. i wonder if i knock the oc off would it state a vid then?, i'll do this now anyway and post back to let ya know

setter · 17 Jun 2010 at 20:08

Cant see it displaying it mate tbh, ti's the same on my i7 wether at stock or overclocked. Only my s775 chips, (e6600, q6600, q9550) displayed a vid at stock and clocked.

Thekwango · 17 Jun 2010 at 20:16

yea you're right, no joy fella. sorry i can't help

setter · 17 Jun 2010 at 20:18

Yep, i was always curious as to why intel removed this info on the i7 range, thought that the i5's might have been different.

Mr Krugga · 17 Jun 2010 at 21:44

No VID for us lol. Although my BIOS shows the AUTO vcore to be 1.207V. It's quite low tbh but then again, my chip won't do 4GHz with reasonable voltages and anything above 3.7GHz means quite a massive overvolting (over the previous settings e.g from 171x21 to 181x21).

My Core i5 does 3.6GHz with C-states off (causing instability at higher frequencies without upping the voltage) with 1.23V at full load. This is with LLC and BIOS voltage is set to 1.19V (1.2V idle).

gbradders123 · 17 Jun 2010 at 21:54

mine is prime stable @ 3.6 on the stock volts (1.21 iirc, but i mihgt not) have to jack it up to 1.3 to get to 3.87 tho.

sadbuttrue · 17 Jun 2010 at 22:05

LLC on pushes voltage way above stock and makes all claims to be running at stock invalid.

Mr Krugga · 17 Jun 2010 at 22:08

sadbuttrue said:
LLC on pushes voltage way above stock and makes all claims to be running at stock invalid.

I'm happy with a 0.03V overshoot under load (measured with a multimeter).

Occooler · 18 Jun 2010 at 02:30

I have an i5 at 3.4 on stock, attempted to go to 3.6 by upping the blck to 180, and it failed prime really quickly.

Do I need to up the volts? Should I settle for 3.4 given my lack of knowledge?

The temps were fine...

Mr Krugga · 18 Jun 2010 at 09:06

Never leave voltages at auto if you attempt to overclock. 95% of mobos overvolt.

You probably have to up the VTT to 1.15V and maybe the vcore - don't know what you're at now.