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TX-Thunderbolt
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« on: April 16, 2009, 07:23:00 am » |
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« Last Edit: April 16, 2009, 09:05:42 pm by TX-Thunderbolt »
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TX-Thunderbolt
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« Reply #2 on: October 12, 2009, 09:43:56 am » |
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Eco, what's your core voltage at 4.2?
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TX-EcoDragon
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« Reply #3 on: October 12, 2009, 02:48:57 pm » |
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Not great, but good enough to be safe given our temps:
prime 95 stable (13 hours) at 4.2 GHz (200*21) at a BIOS set vCore of 1.39375volts, which drops to 1.336v under load in P95 and betwen 1.32 and 1.36v under Intel BurnTest. Max temp on the hottest core was 67C (Megahalems with push-pull).
4.3GHz seems to need approx a BIOS set 1.40 - 1.41875v which drops to 1.340-1.360 under Prime 95.
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S!
TX-EcoDragon
Black 1
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GOZR
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« Reply #4 on: October 12, 2009, 04:02:50 pm » |
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Ouch!! serious drop there.. and pretty high voltages....
Eco got ROF yet ? i can copy and send you one?
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-GOZR
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TX-EcoDragon
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« Reply #5 on: October 13, 2009, 01:04:26 am » |
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There are many vdroop controls but I think that stuff is pretty silly. . .most of them lead to voltage spikes which are higher than the BIOS set values while setting it in the BIOS and letting it droop should keep things safe, despite the higher apparent voltage in the BIOS.
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S!
TX-EcoDragon
Black 1
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TX-Thunderbolt
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« Reply #6 on: October 13, 2009, 06:40:07 am » |
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They are slightly high, but 1.4v is safe and if that's the highest indicated, you're fine (but you already knew that). Besides, your temps are really good.
Even at 1.35v and a TRUE copper, mine ran in the low 70's in Prime95. I've thought about trying to get another 200mhz out of it, but why? It hit 3.8ghz so easily first try, I just decided to leave it there.
I AM considering a GPU upgrade in December depending on how the next NV offering fares compared to the ATI 58xx series though. If that ends up putting the load back on the CPU, I just may look harder for that extra 200mhz.
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TX-Rahman
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« Reply #7 on: October 13, 2009, 09:32:50 am » |
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Can you guys post what mobo and components you used. I don't want to make the same mistake with the motherboard as I made the last time. No money for an upgrade right now but when I do have some money, I'd like to buy the right gear this time..
Rah
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Regards,
TX-Rahman
"BLACK 4"
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TX-Thunderbolt
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« Reply #8 on: October 13, 2009, 10:24:47 am » |
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Well, here's mine. Keep in mind I got the i7 socket 1366 and not the newer i7 socket 1156. The 1366 x58 boards are still available albeit they are expensive. The upside is you usually get SLI (or Tri-SLI) capability and the sweet tri-channel DDR3 ability as well. But they are about $100 more than the newer 1156 socket boards regardless of whether you opt for the i7 or the i5.
Anyway, here goes:
i7 920 2.66 @ 3.8ghz
Asus P6T Deluxe v2
Corsair Dominator 6GB (3x2GB) 1600 triple channel kit @ 1523Mhz
Creative X-Fi Fatal1ty Titanium Champion
WD Vraptor 300GB
Seagate 32MB cache 500GB
HSF - Thermalright Ultra Extreme (TRUE) copper limited edition
CoolerMaster Stacker 830
Corsair 850w PSU
To get to the 3.8ghz mark, here's all I had to do (in BIOS):
1. Turn off speedstep and turbo
2. Set DRAM voltage to 1.66v (it will alert you that that is over Intel's recommended max of 1.65, but disregard)
3. Set Vcore to 1.35v
4. Set Bclk to 190 (190x20 = 3800 or 3.8ghz)
The only thing here is to make sure the RAM is set to 1066 by default instead of 1600. Mine recognized the 1600mhz clock speed and set it there initially. When you raise your Bclk, your RAM will overclock in step and as such, mine was trying to boot at 1900mhz+. Once I set it back down to 1066 the overclock set it to 1523mhz so i still have a slight amount of headroom without exceeding the specs of the RAM.
That's it.
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