Another hot CPU bet you carnt guess which 1

BioVirus87

BioVirus87

BioVirus87

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Joined
9 Feb 2010
Posts
93
Hi im trying to OC my i7 920 to 4ghz im using these settings below but after 20mins of prime 95 small fft im getting a bit above 80°C what temps are others getting using Corsair H50 what temp is acceptable when stress testing is there anything else i can change?
(I dont want to disable HT as that why i went for i7)

PC spec
asus p6x58d premium
corsair dominator 1600mhz 8-8-8-24
i7 920 DO


Ai Overclock Tuner.....................[Manual]
CPU Ratio Setting......................[21.0]
Intel(r) SpeedStep(tm) Tech............[Disabled]
Xtreme Phase Full Power Mode...........[Enabled]
BCLK Frequency.........................[191]
PCIE Frequency.........................[100]
DRAM Frequency.........................[DDR3-1531MHz]
UCLK Frequency.........................[3063MHz]
QPI Link Data Rate.....................[Auto]

CPU Voltage Control....................[Manual]
CPU Voltage............................[1.3]
CPU PLL Voltage........................[1.80]
QPI/DRAM Core Voltage..................[1.28]
IOH Voltage............................[1.14]
IOH PCIE Voltage.......................[1.50]
ICH Voltage............................[1.20]
ICH PCIE Voltage.......................[1.50]
DRAM Bus Voltage.......................[1.64]
DRAM DATA REF Voltage on CHA...........[Auto]
DRAM CTRL REF Voltage on CHA...........[Auto]
DRAM DATA REF Voltage on CHB...........[Auto]
DRAM CTRL REF Voltage on CHB...........[Auto]
DRAM DATA REF Voltage on CHC...........[Auto]
DRAM CTRL REF Voltage on CHC...........[Auto]

Load-Line Calibration..................[Enabled]
CPU Differential Amplitude.............[800mV]
CPU Clock Skew.........................[Delay 300ps]
CPU Spread Spectrum....................[Disabled]
IOH Clock Skew.........................[Auto]
PCIE Spread Spectrum...................[Disabled]

C1E Support............................[Disabled]
Hardware Prefetcher....................[Enabled]
Adjacent Cache Line Prefetch...........[Enabled]
Intel(r) Virtualization Tech...........[Disabled]
CPU TM Function........................[Enabled]
Execute Disable Bit....................[Enabled]
Intel(r) HT Technology.................[Enabled]
Active Processor Cores.................[All]
A20M...................................[Disabled]
Intel(r) SpeedStep(tm) Tech............[Disabled]
Intel(r) C-STATE Tech..................[Disabled]
 
@Helios1234 So did you just accept the temps and leave it running at temps above 80?

@bifday2k yes i hear a lot of people change the fans over, i havent got the space for push/pull in my case but im intrested in what fan i should use if i replace just the one.

@Fel yes when i select my rams XMP settings it runs the dram volts at 1.66 and the QPI/DRAM Core Voltage at 1.35

i seem to have to run the CPU Voltage higher than 1.22 as it is not stable just in windows what affect would running the QPI/DRAM Core Voltage at 1.35 with a lower CPU Voltage as i havent tried that mainly kept the qpi/dram @ below 1.8

and what temps are others getting on small fft in prime using i7 920 do @4ghz?
 
It does seem a tiny bit high, but within what I'd expect for a 4GHz i7 on a Corsair H50, and at that CPU voltage.

The H50 doesn't perform in accordance with it's price when compared to air coolers, so if you need a tad more performance you might want to look at the Thermalright Venomous X or even the Noctua NH-D14!

The other option might be to dial back the OC a little. I don't think most people need to go that high other than for bragging rights. Gaming would be almost unaffected as you're likely to be GPU limited.
 
A lot of later batches of i7 920's need 1.28 volts + to reach 4Ghz stable. As second fan wuld probably knock of a couple degrees. What range of temps are you getting across the cores?
 
after 10mins it was up at 83 degrees from the settings i posted in my first post im going to change the following tonight will that make any diffrence?

cpu 1.275
cpu pll 1.88
qpi/dram 1.35
ioh volts 1.2
ich volts 1.2
dram volts 1.66
 
I can't help with the overclocking I'm afraid, I have slim to no expertise with i7's, but there's many here who do.

What I wanted to mention was something I forgot in my first post that Exsurgo touched upon. You could try adding another fan to the H50, or better still, replace both fans with some higher performance models, preferably with high static pressure (at least for the front fan). Akasa Apache's seem to be popular with the H50.
 
Also the key volt to try and get as low as possible is qpi/dram, this will heat the cpu up a lot, so try and get that as low as possible but still being stable.
 
i run a i7 on a foxconn bloodrage (i think they are well known for running high volts and hot)

but there is the setting for CPU Turbo which enables the x21 multi, i noticed when running in 21/191 with turbo mode always on to use the x21 multi the board dumped a load more voltage on the CPU as well, try running 20x200 (if you can)

is your CPU voltage reading from CPUID? or just what it's saying in the bios on startup?
 
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to be honest all cpus are different, some need higher voltage.

although the corsair h50 is good, it isnt really THAT good. i bought it to overclock slightly and to be silent. also yer i think it wud be a good idea to change the fan. push/pull wudnt knock that much off, 2-5 degrees max i wud say.

also wot position do you have the fan, is it blowing from inside the case out, or stucking in and blowing into the casE?
 
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