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***The Official Core i5 Overclocking Thread***
- Thread starter easyrider
- Start date
So I'd imagine that you run prime95 on four cores at X GHz and the machine is stable for hours. Then you go ahead and only stress one of the cores and the turbo mode kicks in for that core and the rest then power down - how can you be sure that increase in clock speed for that core won't lock the machine up?
I guess the most effective way would be run something like one instance of superpi and then pick the core in the task manager. Then once you can be sure that that core works okay at the turbo'd clock speed repeat the process for each of the other cores.
Y'know what I mean?
I guess the most effective way would be run something like one instance of superpi and then pick the core in the task manager. Then once you can be sure that that core works okay at the turbo'd clock speed repeat the process for each of the other cores.
Y'know what I mean?
As soon as you set Manual OC, the Intel Turbo is disabled (on this board at least) as you don't want it running as well.
Tom, it boots fine into Win 7 at 4GHz but fails prime straight away (one core is fine but other 3 fail within half a minute).
A new BIOS came out so updated. Also found some settings someone used to get to 4.2GHz, which are below, but didn't make any difference.
1.40 vcore, 1.40 IMC, 2.10 PLL, 1.15 PCH, 1.65 RAM, 900mV diff amp
Spread Spectrums off, all unneeded devices off, load line calibration off.
Temps are fine.
Going to give it another try tomorrow.
Tom, it boots fine into Win 7 at 4GHz but fails prime straight away (one core is fine but other 3 fail within half a minute).
A new BIOS came out so updated. Also found some settings someone used to get to 4.2GHz, which are below, but didn't make any difference.
1.40 vcore, 1.40 IMC, 2.10 PLL, 1.15 PCH, 1.65 RAM, 900mV diff amp
Spread Spectrums off, all unneeded devices off, load line calibration off.
Temps are fine.
Going to give it another try tomorrow.
Image edited to reflect stability after 12 hours.
4GHz at 1.43V - Stable after a little over 8 hours. Temperatures are quite high though.
The OC Genie thing on the MSI board is a bit mad - 4.2GHz (not prime stable but certainly useable)
4GHz at 1.43V - Stable after a little over 8 hours. Temperatures are quite high though.
The OC Genie thing on the MSI board is a bit mad - 4.2GHz (not prime stable but certainly useable)
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Homebrew H50 type thing with a 120mm radiator, 120mm PWM fan, 10W DDC with XSPC Reservoir top and an EK Supreme II block.
I'm a bit disappointed that like the original C0 i920's, these seem to need a lot of volts and this doesn't actually run any cooler and the i920 has 8 threads.
GD65 come up trumps
Yes, for £63 it was a bargain. I'm not sure I'd pay £130 for it though.
I've got a GD80 sat here in the box and it's just so not £190 worth.
Do you still have the H50?
Agree with the comment about 130 quid. I disagree with the volts thing, my E8400 needed the same volts for 4ghz so I think 1.35v for a quad with the same volts is fair but then I've not delved into any Core i stuff before.
Agree with the comment about 130 quid. I disagree with the volts thing, my E8400 needed the same volts for 4ghz so I think 1.35v for a quad with the same volts is fair but then I've not delved into any Core i stuff before.
Yes, but no S1156 adapter. And it's carp anyway. The temperatures would be 80C on that. They're massively over-hyped in my opinion. A Megahalems is just as good, £15 cheaper with the same fans and it won't fall apart.
Just ordered a Noctua NH-U12P and 1156 mounting bracket;
http://www.noctua.at/main.php?show=nm_i3_upgrade_order
Should be able to push on further then
http://www.noctua.at/main.php?show=nm_i3_upgrade_order
Should be able to push on further then
mmm this first batch are not looking like great clockers (a bit like the C1 version of the 920) i was hoping to see near 5Ghz under water
Why? Have we got so used to a 50% overclock that nothing less than a 100% overclock is any good now?
I think a 50% overclock is perfectly respectable bearing in mind I'd had about 20 minutes to play with it.
True but its just that first "reviews" before NDA was lifted said it was easy to get these to 5Ghz with air!!
if Intel want to "leak" these figures, i would expect them to be trueish, but by the looks of it people will be lucky to hit 4.2Ghz.
I don't expect any CPU to overclock and its a bonus when they do, i was just hoping for more tbh
Well, I hadn't seen that bit about 5GHz on air, if I had I'm sure my expectations would be higher too
It could be this cheaper MSI motherboard won't take me much further than 4.1GHz stable, but the ASUS Deluxe one might well get the same CPU to 4GHz.
It could be this cheaper MSI motherboard won't take me much further than 4.1GHz stable, but the ASUS Deluxe one might well get the same CPU to 4GHz.
