Core i7 920 rev D0 stepping 5 :)

**ewitte** · 03-24-2009, 07:21 AM

Mostly interested in temperatures. My C0 doesn't need much vcore at all but gets crazy hot. 4Ghz 1.225v would hit 100C and throttle on air and still goes a little over 70C for water. The 21 multiplier is completely useless to me getting higher clocks because it drops to x20 as soon as the temp hits 80C.

**roller11** · 03-24-2009, 11:09 AM

Originally Posted by ewitte

Mostly interested in temperatures. My C0 doesn't need much vcore at all but gets crazy hot. 4Ghz 1.225v would hit 100C and throttle on air and still goes a little over 70C for water. The 21 multiplier is completely useless to me getting higher clocks because it drops to x20 as soon as the temp hits 80C.

Something is wrong! 24/7 for my C0 920 is 4.01Ghz, 1.184 Vcore and I'm seeing only 46C at idle, maybe 55C tops in games (RealTemp). Even the stock HS should do better than that. I've witnessed a 920 that looked normal, but it would get up to 60C pretty quickly, it was obviously defective. You either have an overheater, or your cooler is severely deficient.

**ewitte** · 03-24-2009, 11:55 AM

Originally Posted by roller11

Something is wrong! 24/7 for my C0 920 is 4.01Ghz, 1.184 Vcore and I'm seeing only 46C at idle, maybe 55C tops in games (RealTemp). Even the stock HS should do better than that. I've witnessed a 920 that looked normal, but it would get up to 60C pretty quickly, it was obviously defective. You either have an overheater, or your cooler is severely deficient.

Its an overheater as at least several of the mounts were very good. To put it in perspective the stock cooler at default clock and vcore set to 0.95v would prime in the 80's.

BTW games are not going to heat the CPU up much.

Eric

**ReverendMaynard** · 03-24-2009, 11:57 AM

Originally Posted by roller11

Something is wrong! 24/7 for my C0 920 is 4.01Ghz, 1.184 Vcore and I'm seeing only 46C at idle, maybe 55C tops in games (RealTemp). Even the stock HS should do better than that. I've witnessed a 920 that looked normal, but it would get up to 60C pretty quickly, it was obviously defective. You either have an overheater, or your cooler is severely deficient.

is that with QPI slow mode?

**ewitte** · 03-24-2009, 12:11 PM

How does Intel RMA work? Its obviously either severe amp leakage or bad IHS contact. Even with the stock cooler you shouldn't have to undervolt to keep it under 90-100C. I was excited this one runs with such low vcore settings but the heat has been a big issue even on good watercooling because the x21 multiplier throttles as low as 80C.

**Falkentyne** · 03-24-2009, 12:39 PM

ewitte:
RMA that chip. its defective.
I think that's clear now.
Intel won't refuse an RMA for that. .95v for 80C prime....obvious defect on the IHS.

**ewitte** · 03-24-2009, 01:14 PM

Thanks may check with Micro Center to see if they would swap it first. Not sure because it may be over 30 days now. I just kept upgrading my cooling until I was on water lol. Crap I was even checking out LN2 prices in the area LMAO.

EDIT: Quick question this chip is one of the best with low voltage I've seen. Would it be a better idea to void the warranty and remove the IHS?

**yaddam205** · 03-24-2009, 07:06 PM

Originally Posted by ewitte

Thanks may check with Micro Center to see if they would swap it first. Not sure because it may be over 30 days now.

If you're nice and calmly tell them the issue without yelling and screaming you should get a replacement.

**roller11** · 03-24-2009, 06:07 PM

Originally Posted by ReverendMaynard

is that with QPI slow mode?

Did I say 24/7? 1.184 is also good for prime.

**ReverendMaynard** · 03-25-2009, 09:40 AM

Originally Posted by roller11

Something is wrong! 24/7 for my C0 920 is 4.01Ghz, 1.184 Vcore and I'm seeing only 46C at idle, maybe 55C tops in games (RealTemp). Even the stock HS should do better than that. I've witnessed a 920 that looked normal, but it would get up to 60C pretty quickly, it was obviously defective. You either have an overheater, or your cooler is severely deficient.

Originally Posted by roller11

Did I say 24/7? 1.184 is also good for prime.

Above is what I quoted and was referring to roller. I've been in this i7 game for a while and I know 1 hour of prime is not something I would tote at 24/7.

Still nice clocks/volts though.

**naokaji** · 03-25-2009, 10:11 AM

Originally Posted by ReverendMaynard

1 hour of prime is not something I would tote at 24/7.

QFT.

My I7 needs 0.05V more for actual 24/7 100% load stability compared to just a few hours 100% load stability.

Anyway, can't wait until D0 920's are out in a meaningful way (read: shops guaranteeing that you get one with actual stock), just hope I can get enough for my crappy clocking 940 on fleabay to pay for a new 920.

**roller11** · 03-25-2009, 06:33 PM

Originally Posted by ReverendMaynard

Above is what I quoted and was referring to roller. I've been in this i7 game for a while and I know 1 hour of prime is not something I would tote at 24/7.

Still nice clocks/volts though.

thanks for the compliment, rev. You're one of the top, most helpful posters in this forum, so coming from you it means a lot.

Anyhow...
My awkwardly worded post needs clarification, I didn't mean I primed for 24 hours straight.
Usually, guys will push their chips to voltage/heat extremes to get an impressive prime achievement, then back off their voltage for 24/7 operation.
If I did the same thing, (down volt after prime at 4.01Ghz/ 1.184 vcore) then no telling how low vcore I could go for 24/7 @ 4.01 Ghz. I never bothered to see how low vcore I can go since 1.184 is plenty low enough.

**ReverendMaynard** · 04-20-2009, 08:23 AM

Originally Posted by roller11

thanks for the compliment, rev. You're one of the top, most helpful posters in this forum, so coming from you it means a lot.

Anyhow...
My awkwardly worded post needs clarification, I didn't mean I primed for 24 hours straight.
Usually, guys will push their chips to voltage/heat extremes to get an impressive prime achievement, then back off their voltage for 24/7 operation.
If I did the same thing, (down volt after prime at 4.01Ghz/ 1.184 vcore) then no telling how low vcore I could go for 24/7 @ 4.01 Ghz. I never bothered to see how low vcore I can go since 1.184 is plenty low enough.

1.184v at 4ghz is beautiful. I've actually taken the opposite approach and have been pushing my 24/7 max clocks and not really worrying about voltages anymore lol. I'll say this though, lapping this 920 has made a nice improvement. 4.57ghz HT off, 1.55v now might peak at 80C running wprime1024m, when before that would take it into the low 100's

Linx? eff that action lol.

Thanks for the compliment though, coming from you that's pretty nice to hear because imo, you're 10x more valuable to these forums.