DDR3 (1.5V+) can damage the Skylake CPUs

[kacper]

 

PCPartPicker part list / Price breakdown by merchant

 

CPU: Intel Core i7-4790K 4.0GHz Quad-Core Processor  ($327.99 @ SuperBiiz) 

Motherboard: ASRock Z97 Anniversary ATX LGA1150 Motherboard  ($84.99 @ SuperBiiz) 

Memory: G.Skill Ripjaws X Series 16GB (2 x 8GB) DDR3-1600 Memory  ($69.99 @ Newegg) 

Total: $482.97

Prices include shipping, taxes, and discounts when available

Generated by PCPartPicker 2015-09-28 21:49 EDT-0400

 

 

PCPartPicker part list / Price breakdown by merchant

 

CPU: Intel Core i7-6700K 4.0GHz Quad-Core Processor  ($364.99 @ B&H) 

Motherboard: Gigabyte GA-Z170-HD3 DDR3 ATX LGA1151 Motherboard  ($111.99 @ NCIX US) 

Memory: G.Skill Ripjaws X Series 16GB (2 x 8GB) DDR3-1600 Memory  ($69.99 @ Newegg) 

Total: $546.97

Prices include shipping, taxes, and discounts when available

Generated by PCPartPicker 2015-09-28 21:53 EDT-0400

 

Using the cheapest reliable options for each category, high end Haswell is $60 cheaper than high end Skylake. Considering Haswell's 4790k launched at $350, i would make the point that Skylake, in time, will also get slightly cheaper. Point is, newer platform is a better option for someone building a new PC. 

 

I'd pay $60 more for 5% more IPC, twice the memory capacity support, the ability to SLI with a PCIE M.2 SSD, and the longevity of DDR4 memory (It will support speeds up to 4233mhz). 

 

Anniversary was meant for Pentium .

[WereCat]

There is a big difference between CAN and WILL.

Overclocking CAN damage your CPU too. Yet people are overclocking their CPUs and majority of people that OC never damaged their CPU.

So runing RAM on greater than 1.35V CAN damage your CPU? But we know that some people like to OC their RAM and for that they need to increase the voltage so even DDR4 RAM can run on greater than 1.35V if user wants to OC it a lot I dont see how that is a really big issue.

[MEC-777]

Wouldn't bother upgrading to skylake without going with DDR4 anyways. 

[King_Tuna]

There is a big difference between CAN and WILL.

If you re saying to me i'm so sorry my English level is not good as yours. I'm learning English

[WereCat]

If you re saying to me i'm so sorry my English level is not good as yours. I'm learning English

You forgot /sarcasm but you are also taking what I said it of context so whatever...

[Stefan1024]

electrical signals, not measureable past 10mv

To get a better signal to noise ratio the signal are considerably bigger than 10mV, even if they are differential (RAM is not).

 

I'm pritty sure, the motherboard manufacturer have thougth about this problem as well. Level shifter are not feasible IMHO due to the rater extreme timing constrains. But they would shoot themself into the foot if the say they support 1.65V RAM (and there is no * that liks to: "not all CPUs can support this") and it will kill your CPU within short time. They are not eager for nagative feedback so it should be more to less save.

[Sakkura]

Wait there are boards for 1151 that support DDR3? Why would you even bother with that? DDR4 isn't even that much more expensive compared to DDR3. A 2x8 kit of DDR4 2133MHz would cost $96 while a 2x8 kit of DDR3 1333MHz would cost $80. $16 difference? Come on.

 

If I was going for a Skylake build right now DDR4 would be a no brainer, I literally do not see why you shouldn't go for DDR4 at this point.

 

If you're upgrading to Skylake and already have DDR3 memory, it's cheaper to just reuse the DDR3 memory than to buy new DDR4 memory.

 

And the thing is, most DDR3 will run just fine at 1.35V even if it's rated at 1.5V. It'll just need to run at lower clocks.

[Suika]

holy shit running higher voltages on a platform designed to run lower voltages can damage the platform

 

and this is news how

[EChondo]

If you're upgrading to Skylake and already have DDR3 memory, it's cheaper to just reuse the DDR3 memory than to buy new DDR4 memory.

 

And the thing is, most DDR3 will run just fine at 1.35V even if it's rated at 1.5V. It'll just need to run at lower clocks.

 

Oh of course, you can save money doing that, but even I wouldn't bother staying with DDR3 when I have to buy a whole new board and CPU anyway, might as well throw down another $100 on RAM and hop onto the new standard. At least that way I can keep my old setup and use it as a webserver, router, or guest computer.

 

I do see the benefit of saving ~$100 when upgrading, but is it really worth it in the end? I personally don't think so.

[Gofspar]

To get a better signal to noise ratio the signal are considerably bigger than 10mV, even if they are differential (RAM is not).

 

I'm pritty sure, the motherboard manufacturer have thougth about this problem as well. Level shifter are not feasible IMHO due to the rater extreme timing constrains. But they would shoot themself into the foot if the say they support 1.65V RAM (and there is no * that liks to: "not all CPUs can support this") and it will kill your CPU within short time. They are not eager for nagative feedback so it should be more to less save.

not going to kill your CPU, but whatever floats your boat.

 

It's going to degrade memory modules thats about it.

[Dabombinable]

not going to kill your CPU, but whatever floats your boat.

 

It's going to degrade memory modules thats about it.

Or have them running unstable. For me however it would never have been a big problem, since I run  my DDR3 at 800MHz 1.35V is quite stable. My sole stick of DDR3 1600 also runs fine at 1.35V a long as its at 1066MHz.

[Gofspar]

Or have them running unstable. For me however it would never have been a big problem, since I run  my DDR3 at 800MHz 1.35V is quite stable. My sole stick of DDR3 1600 also runs fine at 1.35V a long as its at 1066MHz.

I had my lower power kit of Elpida rated for low voltage running at 1.7v 24/7.

[PlayStation 2]

that's like saying ddr2's gonna damage an fx-4100

[Lays]

To get a better signal to noise ratio the signal are considerably bigger than 10mV, even if they are differential (RAM is not).

 

I'm pritty sure, the motherboard manufacturer have thougth about this problem as well. Level shifter are not feasible IMHO due to the rater extreme timing constrains. But they would shoot themself into the foot if the say they support 1.65V RAM (and there is no * that liks to: "not all CPUs can support this") and it will kill your CPU within short time. They are not eager for nagative feedback so it should be more to less save.

 

 

I just don't see how power going to the DIMM to power it would raise voltages of other things when the circuits should be completely different.

 

I follow a lot of extreme RAM overclocking threads on OCN and HWBOT, there are many people that are doing 1.7-1.8VDIMM on Ln2 (and sometimes even air) for long long periods of time, I feel like I would of seen people talking about IMC's dying or having issues, and I certainly haven't seen anything like that yet.

 

I honestly don't think this has anything to do with not being safe, and everything to do with them just trying to get people to buy DDR4. (Not that I think that's a bad thing, anyone upgrading to Z170 should be getting DDR4 IMO)

[Godlygamer23]

that's like saying ddr2's gonna damage an fx-4100

Not comparable.

[Glenwing]

This just in: Running hardware beyond official "safe" limits not guaranteed to be safe! Public up in arms!

[PlayStation 2]

Not comparable.

fixed i guess

 

This just in: Running hardware beyond official "safe" limits not guaranteed to be safe!

i think i found my new favorite quote