I am currently almost 10 hours! (and counting) Orthos stable @ 8x500FSB = 4GHz .
I really figured out the minimum voltages since setting one of them lower causes Orthos to crash.
One step lower Vcore causes crash after 2 hours, anything else within an hour for sure.
I have set 1.5v PLL, 1.34vTT with auto references, 1.3875vcore, 1.9v RAM,
1.3v MCH.
Setting a higher Voltage on my Dimm's (which are rated 2.1v) gives no extra stability and doesnt make me able to run a lower VTT and/or MCHvoltage.
CPUz currently reads 1.312v under load all the time, and 1.344v IDLE.
Highest read is in the BIOS which is 1.35x.
With EIST and C1 state enabled for now i figured out it DOES lower the multiplier IDLE to 6 (making it clock back to 3GHz). But the voltage is no longer lowered when IDLE...
Who agree's with me these voltages/clocks temps are 100% safe for 24/7 use?
Thanks to OCZ Vendetta 2 the cpu hits max 55 degrees on a room temperature of 20 degrees (seems very ok to me).
Might run 3.6Ghz in the summer when this room's temperature rises up to 30 degrees.
I can try if i can get my memory timings a little tigher, by then my overclock is done. I will also show the bandwidth difference between 400fsb - 3.6ghz (tight timings) and 500 fsb - 4ghz (looser timings) in a benchmark later here!
I can tell sPI takes me 11,669 seconds to calculate a million digits.
It's not shown on the screenshot below since im still stresstesting (around 15 hours orthos stable will do for me i think).
I really figured out the minimum voltages since setting one of them lower causes Orthos to crash.
One step lower Vcore causes crash after 2 hours, anything else within an hour for sure.
I have set 1.5v PLL, 1.34vTT with auto references, 1.3875vcore, 1.9v RAM,
1.3v MCH.
Setting a higher Voltage on my Dimm's (which are rated 2.1v) gives no extra stability and doesnt make me able to run a lower VTT and/or MCHvoltage.
CPUz currently reads 1.312v under load all the time, and 1.344v IDLE.
Highest read is in the BIOS which is 1.35x.
With EIST and C1 state enabled for now i figured out it DOES lower the multiplier IDLE to 6 (making it clock back to 3GHz). But the voltage is no longer lowered when IDLE...
Who agree's with me these voltages/clocks temps are 100% safe for 24/7 use?
Thanks to OCZ Vendetta 2 the cpu hits max 55 degrees on a room temperature of 20 degrees (seems very ok to me).
Might run 3.6Ghz in the summer when this room's temperature rises up to 30 degrees.
I can try if i can get my memory timings a little tigher, by then my overclock is done. I will also show the bandwidth difference between 400fsb - 3.6ghz (tight timings) and 500 fsb - 4ghz (looser timings) in a benchmark later here!
I can tell sPI takes me 11,669 seconds to calculate a million digits.
It's not shown on the screenshot below since im still stresstesting (around 15 hours orthos stable will do for me i think).
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