I took it down for now DM, may repost later if need be. It sets up pretty well on SNB...
-Raja
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No problem, glad it made things a bit clearer for you guys.
-Raja
i have a strange problem my cpu boots on windows @5600
with intelspeedstep and c1e on
with this settings off i have a black screen and system hang ups
what i can to do?
marvell controller no wo rks good with cpu at high frequency
and corrupts my windows
i have better pcmark 05 score @5440=40200
a 5600 i have only 40100!!!!:(
thank you RAJA
Just to confirm the implications...I did test with the VccIO at 1.2V and the SA at "auto" and the test failed....also, with both on auto, the test failed. The only way for the test to pass was with SA boosted.
I get the impression the manufacturers aren't even sure :rofl:
Raja, is there a chance Gigabyte and Asus have the VccSA & VccIO labels swapped in the BIOSes?
Don't have any GBT boards here so can't say about what their boards do. :) VCCIO pretty much tells me what it is - IO voltage. ;) The SA role is as an IO hub and the memory controller sits as a side unit (any interconnects will be driven by IO voltage)
Check here:
http://www.anandtech.com/show/3922/i...ture-exposed/4
Should add that on our boards my memory clocking results are all tied to VCCIO - and that's with Hypers running past DDR3-2100. On top of that remember the pin location for voltage rails is well stipulated - so the voltage labelling is correct.
-Raja
Yeah Praz, that's about right. There maybe some DC coupling internally that leads to an optimal delta between VCCSA and IO, but I have not seen it and that was with my chip running down at -100, too. On top of that on Z68 tying the two rails is allowed which takes the suggestion of any such delta out of the equation under all normal operating conditions.
-Raja
its safe to run vccio ! 1.2?
To quote anand in your link:
Seems to me that anand is saying the SA voltage would control the IMC voltage, since they're in the same power plane.Quote:
The System Agent houses the traditional North Bridge. You get a 16 PCIe 2.0 lanes that can be split into two x8s. There’s a redesigned dual-channel DDR3 memory controller that finally restores memory latency to around Lynnfield levels (Clarkdale moved the memory controller off the CPU die and onto the GPU).
The SA also has the DMI interface, display engine and the PCU (Power Control Unit). The SA clock speed is lower than the rest of the core and it is on its own power plane.
Raja, is it possible my results were different than yours due to the D1 ES CPU I was testing with?
The core voltage for a functional unit is not the same thing as the transceiver IO or termination voltage for any associated signal line (unless engineered in such a way). It is the IO voltage that is important for overclocking as that drives the transceivers which receive and send data. Think of it as vIOH and VTT. The placement of the memory controller was never in doubt - my opening response said that it sits to the side but the interconnect will be driven by the IO voltage. The main thing here is to understand the role of IO.
I never used the D1s myself, there may be some differences but they would not be that large as to flip the role of the IO rail. Either way, I suggest you have another in-depth play with some boards and CPUs and see for yourself which voltage has the impact on memory clocking.
-Raja
did i understand this correct, that a increase of the SA can stabilize the IO then ?
in memory oc my experience was that increasing the SA is "little" helpful to get 2x4GB stable. for 2x2GB it was not necessary @all, but the main focus in both options was giving the IO a little bump.
thx Raja
ok, thx for Info. Sounds great. have to test much more. Got my MIVE 2 weeks ago. Maybe i was a little bit to scared with that IO Voltage :D
I installed my W7 OS onto my SSD with AHCI and hotplugging turned on in the BIOS. But I left the jmicron enabled on the red intel sata port.
If I disable the jmicron in BIOS, the PC doesn't boot into the OS anymore.
I am using the intel driver from the asus DL site.
Is there anyway to disable the jmicron controller and boot from the SSD?
Thanks.