I am hoping someone can give me some advice and/or comparison figures for an overclocked i7 930 using a Corsair H50 pre-filled water cooler. I am getting very disappointing results which are not in line with reviews I've read.
I have a Gigabyte X58A-UDR3R (ver 1) MB with an i7 930 and Corsair XMS3 memory which was supplied as an overclocked bundle by OCUK. I am using the OC profile as supplied in BIOS eprom by OCUK - this is 182x22 (4GHz) with a Vcore of 1.3v and a dram of 1.64v. I am measuring core temperatures using Core Temp 0.99.7 and will quote the temperature of the hottest core.
With the OC applied, the no-load tempreture is 50c. When I load all 4 cores (all 8 threads) to 100%, the temperature rises rapidly maxing out at 100c (in around a minute). Although the computer continues to function at this temperature, I have read elsewhere that 80c is really the highest that should be considered safe.
I have tried powering the pump directly from 12v and switching off fan speed control. Although I have mounted the radiator above an exhaust fan in the case roof (not the recommended configuration I know), this does not seem to be the problem. I measured the temperature at the fan inlet and at the top of the radiator giving 26c and 41c respectively. That inlet temperature is only a degree or so above ambient suggesting putting it on the inlet side would not improve matters - and would result in the radiator heat being dumped into the case which seems silly to me! The very high differential between the core temperature and the radiator outlet temperature suggests to me inadiquate water circulation rather than an air problem.
I will reboot now to stock speed and report the tempretures for that in a followup message.
Update: OK at stock speed the no load temperature is 39c and the full load temperature maxes out at 69c.
Any help would be greatfully received as these results are very dissapointing, this being intended as a "no compromises" performance build.
I have a Gigabyte X58A-UDR3R (ver 1) MB with an i7 930 and Corsair XMS3 memory which was supplied as an overclocked bundle by OCUK. I am using the OC profile as supplied in BIOS eprom by OCUK - this is 182x22 (4GHz) with a Vcore of 1.3v and a dram of 1.64v. I am measuring core temperatures using Core Temp 0.99.7 and will quote the temperature of the hottest core.
With the OC applied, the no-load tempreture is 50c. When I load all 4 cores (all 8 threads) to 100%, the temperature rises rapidly maxing out at 100c (in around a minute). Although the computer continues to function at this temperature, I have read elsewhere that 80c is really the highest that should be considered safe.
I have tried powering the pump directly from 12v and switching off fan speed control. Although I have mounted the radiator above an exhaust fan in the case roof (not the recommended configuration I know), this does not seem to be the problem. I measured the temperature at the fan inlet and at the top of the radiator giving 26c and 41c respectively. That inlet temperature is only a degree or so above ambient suggesting putting it on the inlet side would not improve matters - and would result in the radiator heat being dumped into the case which seems silly to me! The very high differential between the core temperature and the radiator outlet temperature suggests to me inadiquate water circulation rather than an air problem.
I will reboot now to stock speed and report the tempretures for that in a followup message.
Update: OK at stock speed the no load temperature is 39c and the full load temperature maxes out at 69c.
Any help would be greatfully received as these results are very dissapointing, this being intended as a "no compromises" performance build.
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