Intel HD3000, turbo not going over x34

[Shivansps]

I have a 2500K and a Biostar TZ68k+, while playing with the turbo settings for the IGP the max i can get is 1800mhz(x34), after that is does not matter, x35, x36, x40, etc all gives 1800mhz.

Im missing something or it could be a bios bug?

 

[Prey2big]

TDP limit maxed out?

 

[Shivansps]

I trought about that, but it does not seem to care the CPU turbo, i can leave default, or set all cores to run at 4.5ghz, it does not affect IGP turbo at all.

If i can get 4.5ghz cpu and 1800mhz igp, it should mean that 3.4ghz CPU could get higher igp clock? its still locked at 1800mhz.

Also about the IGP, as soon as i place ANY load on the cpu while the IGP is at 100%, the igp turbo drops to 1750mhz(x33), it does not matter if its 1 or 4 cores, if its 50 or 100%, or if is all of that at 4.5ghz or 3.4ghz...

Something does not make sence or im missing something.

 

[Dave3000]

TDP limit maxed out?

Not possible to max out the TDP when only 1-3 cores are fully loaded a stock turbo speeds. 1 core at 3.7GHz consumes much less power than 4 cores at 3.4GHz. Also 3.4GHz is the turbo speed for all 4 cores active on the 2500k. You need to enable C3-state in the BIOS under the CPU settings to get more the 3.4GHz turbo so that the other cores can sleep while the others are active with the higher turbo speeds otherwise you will only get up to 3.4GHz when turbo is enabled.

 

[rootheday3]

I don't know why the system is behaving as it is. But I think it funny that you are getting a 50% OC on intel hd 3000 (1200-1300 up to 1750-1800) and are trying to go higher. For a fairly moderate amount of money you could:
1) upgrade to an ivb with hd4000
2) install a low end discrete Gpu

Either would give you much more graphics headroom and probably better perf/watt since running hd3000 @ 1800mhz is probably a significant bump in power. Remember that you could OC the hd 4000 too.

If you were looking for the next jump in graphics perf and wanted to stick with intel gpu you could switch both CPU and mobo to a haswell with hd4600- there are quite a few skus to choose from. Or step up to intel iris 5100 or iris pro 5200 - though singe those are BGA (vs LGA), you can only get them already soldered to a mobo or in a prebuilt system (see recent announcement of Gigabyte BRIX 2 with iris pro).

 

[MisterMac]

I don't know why the system is behaving as it is. But I think it funny that you are getting a 50% OC on intel hd 3000 (1200-1300 up to 1750-1800) and are trying to go higher. For a fairly moderate amount of money you could:
1) upgrade to an ivb with hd4000
2) install a low end discrete Gpu

Either would give you much more graphics headroom and probably better perf/watt since running hd3000 @ 1800mhz is probably a significant bump in power. Remember that you could OC the hd 4000 too.

If you were looking for the next jump in graphics perf and wanted to stick with intel gpu you could switch both CPU and mobo to a haswell with hd4600- there are quite a few skus to choose from. Or step up to intel iris 5100 or iris pro 5200 - though singe those are BGA (vs LGA), you can only get them already soldered to a mobo or in a prebuilt system (see recent announcement of Gigabyte BRIX 2 with iris pro).

I find it funny you post that in a enthusiast forum full of tweakers and overclockers.

Don't you think he's just trying to see how far he can go?
Do you seriously think based on his posts - he doesn't know a cheap 7750 would give much more power?

 

[Shivansps]

I have a HD5850, im checking how high the HD3000 it can go whiout increasing voltage, and how much i can put out of it.

I see people using mutipliers of x40, x42, it seems strange that i cant go higher than x34.
Like this guy here. http://hwbot.org/image/993233.jpg

 

[tweakboy]

Your mobo has to be the culprit

 

[Ed1]

I have a 2500K and a Biostar TZ68k+, while playing with the turbo settings for the IGP the max i can get is 1800mhz(x34), after that is does not matter, x35, x36, x40, etc all gives 1800mhz.

Im missing something or it could be a bios bug?

I am not familiar with Biostar TZ68k but on Z77 there is a current % setting just like CPU current .
They are 100% at default, have you raised it ?

On Asus P8Z77 you can raise both CPU and IGPU to 140% max current .

 

[Shivansps]

here where im right now

I can keep going up on the cpu side, but no on igp side. Disabling C1E does no help.