Thanks for all the tips guys.
I would open a window but with 50-60F nights here it wouldn’t help much, I know I tried it...Originally Posted by ozzimark
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I wasn’t brave enough to put the vacuum hose in with all the fans spinning.Originally Posted by saaya
So I’m still 7MHz short of 3300MHz.
The 3293MHz is a kill shot.Originally Posted by DmatkO
To get 3293MHz I had to raise the vcore to 1.7v. On air it gets real warm real quick, idling around 110F. Water would probably get things out past 3300MHz and some serious cooling would make this chip soar.
Here are some of differences I’ve seen between the Clawhammer-vs-4000+ Newark.
The core on the 4000+ Newark is smaller than the Clawhammer. Maybe 25-30% making the idle temps warmer by around 7F. I’ve been trying to utilize the higher MHz speeds this CPU is capable of. But on air it's like walking a tight rope with voltage on one side of the beam and heat on the other.
I have found that this chip scales upward easily on air:
1.350v 2800MHz
1.450v 3000MHz
1.525v 3050MHz.
It’s getting 3.1-3.2Gigs stable on air that’s the balancing act.
I ran 3DMark at 3133MHz. At 3185Mhz I ran PiFast=40.08Secs & SPI 1M=29Secs. I ran all of these at 1.550v.
The 4000+ Newark I have doesn’t mind voltage as I have had it up to 1.7-1.8v for short periods at or above 50C without problems. I found that at 3185Mhz on air 1.58v made the CPU load temps go beyond 50C to 53C. At this speed and heat benchmarks would fail after awhile. If I kept the vcore at 1.550v it would run longer at or just above 50C. If you could keep temps significantly below 50C you could probably then run intensive benches reliably at or above 3200MHz. You really need better than air-cooling to live beyond 3200MHz. I bought this chip as an upgrade from the 3400 Clawhammer. You should be able to run it at 3000-3100MHz with premium air-cooling all day. For me the Newark 4000+ was a worthy 500MHz upgrade not having to change board and vcard. I would like to see others put some serious cooling to one and find out what these chips are really capable of.
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