What Vcore should i set for E5200 3.4 GHZ

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Hey guys im new here, i would like to ask what Vcore should i set for a stable 3.4 GHZ and also do i have to change anything else?

Previously i set the FSB to 240 (3 GHZ) with stock voltages and it ran stable until around 250.


So, can anyone help? (Right now its at 2.5 GHz) everything stock.
 
i set my fsb to 275 and cpu voltage to 1.32500 but it just crashed, multiplier is 12.5 Is there anything i need to change? or tweak?
 
i set my fsb to 275 and cpu voltage to 1.32500 but it just crashed, multiplier is 12.5 Is there anything i need to change? or tweak?

I found using the 0.5 multiplier made things unstable (on my rig).

Below i'm quoting myself from an old thread (to save me re-writing essentially the same thing.) but it may be of some help:

N.B. You may require more voltages but remember - not all things are equal with cpus and setup - you may need to tweak different settings.

Also the memory timings may not be relevent (there for Kingston HyperX 8500) - enter your own memory's values/voltages.


Sure - but, unfortunately there is no guarantee it will work for you as, you're probably well aware, even when using like-for-like compnents their ability to clock will usually vary slightly, sometimes majorly - but it will give you something to work on.

If by some happy circumstance is does works straight off – prime95 it for a few hrs and if it passes then incrementally lower voltages until it buckles and then go back to the last known stable setting. Oddly, I haven’t done this yet for my 3.5GHz because I just bumped the vCore down to 1.3v from my 3.8Ghz setting and I was fortunate enough for it to work – I plan on finding it’s lowest, stress stable limit when I’m back from holiday.

Aaanyway, here are my (present) settings:

  • Multiplier - x12
  • FSB - 292 (i rounded it up for convenience)
  • PCI-e - 101
  • Memory Divider - 3.33C (973MHz)
  • vCore - 1.30v (I reckon I could get a lower stable voltage but I’ve yet to experiment. I’ve dropped from 3.8GHz to 3.5GHz since the summer kicked in as the 3.8Ghz became, at first, a bit unstable but then became too noisy to justify.)
  • DRAM - 2.2v (This I know I can run lower but it’s set at 2.2v because my memory is so close to 1066MHz – and again I haven’t had time to stress test the 3.5GHz clock properly.)
  • Timings set manually - 5 5 5 15 (You should try 5 5 5 18 first – use 15 once the system is stable.)

The system idles at a rather warm 49º but this is made irrelevant by the load temps which are 67º - i should really get a better cooler but as the load temps are ok i'm going to just ride out the summer at 3.5GHz.

Let me know how you get on.
 
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EDIT: Also, make sure you have the latest BIOS for your motherboard.

And you are remembering to adjust the memory divider?

What's your motherboard?

See above post first
 
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I have my [email protected] running stable. Vcore in Bios says 1.16v, yet according to CPUID hardware monitor, whilst using ITB at maximum for 5 test runs(all of which passed) my Vcore was 1.14v. Only rose to 1.15v just prior to posting each test run result. CPU temps average just below 50C.
 
Got mine at 300fsb x 12, v-core at 1.3 in BIOS. RAM voltage needed a bump from standard, but only 1 notch up and well away from the yellow and red (OC) settings

Stress testing gets it to 63deg on air
 
AudiR8 - what is the spec of your memory as with that quality MB you shouldn't really be having any issues hitting 3.5GHz (unless you have a poor CPU)?
 
Yeah its stable, not had any crashes or instability. I was running it at 3.3Ghz previously and my v-core was 1.24v had it like that for 2 years, but it needed the extra to 1.3v for 3.6ghz, anything less and prime95 bombed it out.

I only prime95d it for 4 hours as the most intense thing I do on it now is game, usually Starcraft 2. I understand that some people don't consider it stable until you 24 hours prime95 it while in a heatwave and switching your lights and microwave on and off really fast (I jest) but I don't see the point unless you are doing some "mission critical" work, and saving the galaxy in Starcraft does not count.

Motherboard is a Gigabye P43-ES3G and 4gb of "value" RAM (both the cheapest avalible at the time). Cooler was a £19 Akasa.
 
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