Hi Guys,
Firstly, this is my first post here, I have been reading these forums for a few weeks now with a plan of building a new i7 920 core setup with the Asus p6t board and overclocking it, this weekend I took the plunge and I have a few questions.
Ok, so I am using the above board and processor and dominator ram @ 1600, at the moment I am using an akasa air cooler.
I have overclocked it to 3.8ghz, with a CPU ratio of 19 and a BCLK of 200 (19x200=3800), also the ram is running at 1603. When I first overclocked this the temperatures were sitting at around 40 degree's idle which is a bit higher than I wanted, but with my crappy case and air cooling and the fact I have raptor drives in there as well it wasnt really a suprise, so I decided I was OK with that, but the problem was when I used prime95 it maxed out at around 78 - 80 degrees, which I wasnt comfortable with, would I be correct in assuming that a temperature of 80 is too high under max load?
So I started reading up about core voltages and QPI voltages, my board was set to auto, and I was just making sure that it was under 1.4 on the core (which it was ... just) so I started to manually drop the core voltage, at 1.2v is blue screened under prime95, but this wasnt really a suprise, I have now upped this slightly to 1.25v and under full load it sits at around 70 degrees, is this still too high for full load? or would this be classed as acceptable, I see people on the internet who say that these processors can handle these temps until they hit the 90s, then it gets a bit rocky?
So to summerise, I have the following overclock ..
i7 920 2.6ghz running at 3.8ghz
BCLK of 200
CPU Ratio of 19
DRAM @ 1600mhz
CPU Core Voltage of 1.25v
Idle temp of 40 degrees
prime95 temp of 70 degrees
All seems stable at the moment, but if these temps are too high I am happy to drop it down to 3.6 and lower the voltages if needed.
Also, where does the QPI/DRAM voltage come into play with all of this? I was thinking of lowering that also, but wasnt sure yet if there are any negative effects of that.
Thanks for your help guys, great forum!!
Richard
Firstly, this is my first post here, I have been reading these forums for a few weeks now with a plan of building a new i7 920 core setup with the Asus p6t board and overclocking it, this weekend I took the plunge and I have a few questions.
Ok, so I am using the above board and processor and dominator ram @ 1600, at the moment I am using an akasa air cooler.
I have overclocked it to 3.8ghz, with a CPU ratio of 19 and a BCLK of 200 (19x200=3800), also the ram is running at 1603. When I first overclocked this the temperatures were sitting at around 40 degree's idle which is a bit higher than I wanted, but with my crappy case and air cooling and the fact I have raptor drives in there as well it wasnt really a suprise, so I decided I was OK with that, but the problem was when I used prime95 it maxed out at around 78 - 80 degrees, which I wasnt comfortable with, would I be correct in assuming that a temperature of 80 is too high under max load?
So I started reading up about core voltages and QPI voltages, my board was set to auto, and I was just making sure that it was under 1.4 on the core (which it was ... just) so I started to manually drop the core voltage, at 1.2v is blue screened under prime95, but this wasnt really a suprise, I have now upped this slightly to 1.25v and under full load it sits at around 70 degrees, is this still too high for full load? or would this be classed as acceptable, I see people on the internet who say that these processors can handle these temps until they hit the 90s, then it gets a bit rocky?
So to summerise, I have the following overclock ..
i7 920 2.6ghz running at 3.8ghz
BCLK of 200
CPU Ratio of 19
DRAM @ 1600mhz
CPU Core Voltage of 1.25v
Idle temp of 40 degrees
prime95 temp of 70 degrees
All seems stable at the moment, but if these temps are too high I am happy to drop it down to 3.6 and lower the voltages if needed.
Also, where does the QPI/DRAM voltage come into play with all of this? I was thinking of lowering that also, but wasnt sure yet if there are any negative effects of that.
Thanks for your help guys, great forum!!
Richard
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