[Techspot] BCLK overclocking non-K Intel Skylake CPUs is now possible, tested here

[VirtualLarry]

That's pretty good. What're you using to cool the chip?

Icewater and cool lemonade. No, but seriously, a copper-cored 115x cooler off of ebay. ($8-9 shipped.)

I have no idea of the core temps, because RealTemp reads 100C constantly, but when I ran OCCT, the graph showed some temp going from 36C to 51C, I assume that was a Tcase reading. Either that, or the VRMs. One of the two I think. Either way, not too bad.

Edit: UEFI screen shows temps. 67C

Edit: Got a few STOP 0x101 BSODs too.
http://www.sevenforums.com/crash-lo...0x101-clock_watchdog_timeout-troubleshtg.html

 

[crashtech]

I guess with BCLK OCing we just need to watch for throttling as evidence of overheating? Larry, what does that thing run in Cinebench 11.5?

 

[VirtualLarry]

I guess with BCLK OCing we just need to watch for throttling as evidence of overheating? Larry, what does that thing run in Cinebench 11.5?

Ok.

OpenGL: 100.20 fps
Ref. Match 99.3%

CPU: 3.90 Pts
CPU(single core): 1.99 Pts
MP Ratio: 1.96x

For some reason, it reports my CPU as "2 Cores, 2 Threads @ 2.60Ghz". OCCT reports that clock speed as well. But CPU-Z reports 4.125Ghz.

 

[crashtech]

Ok.

OpenGL: 100.20 fps
Ref. Match 99.3%

CPU: 3.90 Pts
CPU(single core): 1.99 Pts
MP Ratio: 1.96x

For some reason, it reports my CPU as "2 Cores, 2 Threads @ 2.60Ghz". OCCT reports that clock speed as well. But CPU-Z reports 4.125Ghz.

If you can come up with a screenshot of that Cinebench result and one of CPU-Z showing the GHz under load, I'd really like to add your results to the list.

 

[Dufus]

I guess with BCLK OCing we just need to watch for throttling as evidence of overheating?

Does temperature throttling still work or does it shutdown at ~130C providing it doesn't thermally runaway and destroy itself in the process.

Have you or somebody else tested this?

 

[crashtech]

I never considered BCLK OCing might bork the CPUs own thermal protection, and no I have not tested it. Not sure I would want to try.

 

[Burpo]

Intel CPU's will throttle around 100C so as not to damage the chip.

 

[Shmee]

Icewater and cool lemonade. No, but seriously, a copper-cored 115x cooler off of ebay. ($8-9 shipped.)

I have no idea of the core temps, because RealTemp reads 100C constantly, but when I ran OCCT, the graph showed some temp going from 36C to 51C, I assume that was a Tcase reading. Either that, or the VRMs. One of the two I think. Either way, not too bad.

Edit: UEFI screen shows temps. 67C

Edit: Got a few STOP 0x101 BSODs too.
http://www.sevenforums.com/crash-lo...0x101-clock_watchdog_timeout-troubleshtg.html

AFAIK realtemp has not been updated in some time. That could be the issue.

 

[crashtech]

Intel CPU's will throttle around 100C so as not to damage the chip.

The question is whether just the ability to report temps to the outside world has a problem, or temp measurement itself is busted, in which case throttling may not occur at the correct temp, or at all. I doubt that it is the latter, but there is a degree of uncertainty.

 

[sactoking]

Does anyone know if MSI has released valid Z170 drivers? Last I saw there were Z170 drivers from MSI for all of their boards but users were saying they were defective and MSI pulled them. Haven't seen anything for the past 20 or so days on that front.

 

[Dufus]

AFAIK realtemp has not been updated in some time. That could be the issue.

Skylake uses the same model specific registers for temperature as earlier versions to report DTS.

 

[PPB]

Icewater and cool lemonade. No, but seriously, a copper-cored 115x cooler off of ebay. ($8-9 shipped.)

I have no idea of the core temps, because RealTemp reads 100C constantly, but when I ran OCCT, the graph showed some temp going from 36C to 51C, I assume that was a Tcase reading. Either that, or the VRMs. One of the two I think. Either way, not too bad.

Edit: UEFI screen shows temps. 67C

Edit: Got a few STOP 0x101 BSODs too.
http://www.sevenforums.com/crash-lo...0x101-clock_watchdog_timeout-troubleshtg.html

You should just go for a copper 775 one, 6 bucks on ebay, fits 115x when you replace the plastic mounts with screws

 

[Burpo]

The question is whether just the ability to report temps to the outside world has a problem, or temp measurement itself is busted, in which case throttling may not occur at the correct temp, or at all. I doubt that it is the latter, but there is a degree of uncertainty.

No uncertainty with Intel, CPU protection is built in and not user configurable thru bios, nor visible thru software.

"THERMTRIP# Signal
Regardless of whether or not Adaptive Thermal Monitor is enabled, in the event of a catastrophic cooling failure, the processor will automatically shut down when the silicon has reached an elevated temperature (refer to the THERMTRIP# definition in Table 5-1). At this point, the THERMTRIP# signal will go active and stay active. . The temperature at which THERMTRIP# asserts is not user configurable and is not software visible."

 

[VirtualLarry]

No uncertainty with Intel, CPU protection is built in and not user configurable thru bios, nor visible thru software.

"THERMTRIP# Signal
Regardless of whether or not Adaptive Thermal Monitor is enabled, in the event of a catastrophic cooling failure, the processor will automatically shut down when the silicon has reached an elevated temperature (refer to the THERMTRIP# definition in Table 5-1). At this point, the THERMTRIP# signal will go active and stay active. . The temperature at which THERMTRIP# asserts is not user configurable and is not software visible."

The temperature at which it triggers is not user-configurable, but you can disable THERMTRIP# in BIOS.

Edit: Maybe it's PROCHOT# (thermal throttling) that you can disable in BIOS?

 

[VirtualLarry]

No, but seriously, a copper-cored 115x cooler off of ebay. ($8-9 shipped.)

You should just go for a copper 775 one, 6 bucks on ebay, fits 115x when you replace the plastic mounts with screws

Not sure if serious. Do you mean a SOLID copper heatsink? I doubt that those are going for $6 on ebay. And why would I bother adapting the mounts, when I can just get a copper-cored 115x heatsink for $8 shipped?

 

[.vodka]

Well, 775 era copper cored heatsinks for Pentium D and 65nm C2Ds are much beefier than the ones used in 115x CPUs. If you can come up with your own mounting hardware for newer sockets, then it's a much better heatsink.

 

[MrTeal]

Well, 775 era copper cored heatsinks for Pentium D and 65nm C2Ds are much beefier than the ones used in 115x CPUs. If you can come up with your own mounting hardware for newer sockets, then it's a much better heatsink.

Are they really that much better though? Considering you can buy heatpiped tower coolers from Newegg for $15-20 with a new mounting kit, it seems like it might be a bit of a waste to buy an LGA775 cooler for $10+ off ebay and then still have to mod it to work, unless messing around with it is something you really want to do.

 

[Dufus]

@Burpo

THERMTRIP# is the ~130C temperature I posted earlier.

 

[crashtech]

No uncertainty with Intel, CPU protection is built in and not user configurable thru bios, nor visible thru software.

"THERMTRIP# Signal
Regardless of whether or not Adaptive Thermal Monitor is enabled, in the event of a catastrophic cooling failure, the processor will automatically shut down when the silicon has reached an elevated temperature (refer to the THERMTRIP# definition in Table 5-1). At this point, the THERMTRIP# signal will go active and stay active. . The temperature at which THERMTRIP# asserts is not user configurable and is not software visible."

There are several means of controlling CPU temps built in, and more than one thermal sensor per core; it's not clear if one sensor is giving bad info or is communicating improperly, then any other sensor will work as intended. If you are an authority on the subject, an explanation would be helpful.

 

[.vodka]

Are they really that much better though? Considering you can buy heatpiped tower coolers from Newegg for $15-20 with a new mounting kit, it seems like it might be a bit of a waste to buy an LGA775 cooler for $10+ off ebay and then still have to mod it to work, unless messing around with it is something you really want to do.

Sure, there are much better ways to spend one's money to cool a CPU. If you're space constrained you can't really beat those old 775 heatsinks. If the case allows for a heatpiped tower cooler then there isn't much to discuss here.

But yeah, 775 full height copper cored heatsinks > 115x copper cored heatsinks, that was the point of my post... if you're willing to mod one of them to fit and can get one for cheap.

Edit: Got a few STOP 0x101 BSODs too.
http://www.sevenforums.com/crash-lo...0x101-clock_watchdog_timeout-troubleshtg.html

Isn't 0x101 a vcore related BSOD? Maybe that CPU needs a touch more vcore to be stable.

 

[PPB]

Because the 775 is double the z height, is a much more robust cooling solution than the 115x.

As I said, it is copper core. The fins are aluminum.

"modding" it is just 10 minutes of man work. 4 screws, 4 nuts, 4 washers, and 4 silicone orings commonly used in faucet selectors. In my country al that is worth less than 3 bucks, plus the 6 bucks heatsinks makes you a solid 9 buck cooler which outperforms the one you bought for a similar price.

 

[VirtualLarry]

Isn't 0x101 a vcore related BSOD? Maybe that CPU needs a touch more vcore to be stable.

I got those when I was trying for higher clocks. (4.3Ghz+) I'm not really comfortable giving the chip more than 1.300v in BIOS.

 

[crashtech]

Skylake generally needs more than 1.3V when clocked high. It's not like Haswell, which rapidly built heat at voltages over 1.3. This may have to do with Skylake not having FIVR.

 

[VirtualLarry]

Skylake generally needs more than 1.3V when clocked high. It's not like Haswell, which rapidly bult heat at voltages over 1.3. This may have to do with Skylake not having FIVR.

Hmm, after watching a friend's 45nm C2D Pentium dual-core degrade at 1.425v BIOS, I'm not really sure I want to "juice" a 14nm chip that much.

Edit: Didn't Intel lower either TJmax or TcaseMax for Skylake? As in, it's a good idea to keep them running cooler than Haswell?

 

[CHADBOGA]

Hmm, after watching a friend's 45nm C2D Pentium dual-core degrade at 1.425v BIOS, I'm not really sure I want to "juice" a 14nm chip that much.

With the cheapy celerons you like to buy, I'm surprised you would be worried.