How many people have fried a i5 or i7(s1156)

[Kenmitch]

Just thought I'd ask as it seems to be a topic that alot of people comment on as far as the safe voltages of the platform.

Can't edit poll questions?

I like the honest answers such as:

I'm to paranoind to try overclocking
Not yet but I'm working on it
I have a cpu vtt of more than 1.35 and so far so good
I have a cpu vtt of more than 1.40 and so far so good
I'm scared to even try a cpu vtt close to 1.21v

No was a bad option choice....Was easy way out and could be voted for even for those whom don't even have the cpu's in question....Live and learn I always say.

Anyways if fried what socket does your MB have and how did you do it?

If you've just read about it provide a link for our enjoyment

If your just gonna troll and not answer honestly then why bother voting at all

 

[Ualdayan]

I was afraid I had, but it turned out my motherboard died. (LOTES socket, EVGA P55 SLI) It ended up costing me $25 or so too because when you exchange an item at Tigerdirect even if you exchange it for the same identical item (you aren't getting any money back) they invalidate your Bing cashback. With the replacement motherboard I've been running 1.35VTT (the board set it there automatically) without any issues.

 

[aigomorla]

well i had a bad gulftown that didnt last more then 2 weeks.

Were guessing the cpu was fragile to begin with and it wasnt the overclocking that killed it.

But no one knows for sure.

But the A0 gulftowns were weak, and a lot of people did pop them.

 

[Kenmitch]

I was afraid I had, but it turned out my motherboard died. (LOTES socket, EVGA P55 SLI) It ended up costing me $25 or so too because when you exchange an item at Tigerdirect even if you exchange it for the same identical item (you aren't getting any money back) they invalidate your Bing cashback. With the replacement motherboard I've been running 1.35VTT (the board set it there automatically) without any issues.

Thanks....It's a great board isn't it. Word of caution do not use the latest bios as it gave me nothing but problems. Backpeddled down to the A39 bios and all is good. I may try to bumping it up 1 more at a later date if I have any issues.

I'm kinda torn with mine as the second bios is defective but the board does have the LOTES socket. I could RMA it but thought about it as evga told me that no guarantee that the socket would be LOTES again. So in the end I think I'll just keep the board as it has a 3yr warranty anyways. None issue with the early released boards as stated to me by evga.

 

[MadScientist]

It's usually the MB that goes up in smoke first. Might want to change the poll to "How many people have fried a P55 S1156 MB".

 

[Shmee]

well i had a bad gulftown that didnt last more then 2 weeks.

Were guessing the cpu was fragile to begin with and it wasnt the overclocking that killed it.

But no one knows for sure.

But the A0 gulftowns were weak, and a lot of people did pop them.

I have luckily not fried any CPUs yet. And pitty about that gulftown. How is teh B1 stepping?

 

[Ualdayan]

Thanks....It's a great board isn't it. Word of caution do not use the latest bios as it gave me nothing but problems. Backpeddled down to the A39 bios and all is good. I may try to bumping it up 1 more at a later date if I have any issues.

The way it died for me was normally when you turn this particular board on it would turn on, turn off, then turn back on again. (That's normal I've read.) Unfortunately one morning I went to turn it on, and it turned on, turned off (like normal), but then never came back on. Subsequent pushes of the power button, and a different power supply all had the same result - no signs of life from the motherboard. I don't think it was a BIOS issue, but rather something physically wrong with it because the EVGA light stopped working a few days before that.

 

[Kenmitch]

The way it died for me was normally when you turn this particular board on it would turn on, turn off, then turn back on again. (That's normal I've read.) Unfortunately one morning I went to turn it on, and it turned on, turned off (like normal), but then never came back on. Subsequent pushes of the power button, and a different power supply all had the same result - no signs of life from the motherboard. I don't think it was a BIOS issue, but rather something physically wrong with it because the EVGA light stopped working a few days before that.

I just meant that alot of people have issues with the latest bios on the board such as unstable don't wanna cooperate with overclocking etc. It sounds like your board was trully dead....What socket did your replacement have?

 

[MrK6]

I've built three different systems based on i5 750's, overclocked them all, and haven't a single issue. But then I also stayed at or under Intel specs (VTT 1.21V or lower).

 

[tweakboy]

Good thread. People just have to be careful when OCing. A increase in CPU voltage and your getting a hotter chip. How do you cool down that chip is up to you.

From what I read about Intel. Their current CPU's have a feature and it turns off after reaching max tjmax say @ 85c. The CPU should turn off @ 85c . It's very hard if you want to burn a CPU because as I said it shuts down your system to prevent damage to CPU.

For example put the CPU without heatsink and turn it on. Before you know it the computer will turn off. You can try to get into BIOS and check the temp of the CPU and youll see it reaches a certain max and shuts off. With this neat feature its really hard to burn a CPU now adays. Imagine your system is on and your sleeping, and in the middle of your sleep the heatsink becomes loose for some reason and there isn't full contact. Well the temp will rise and rise until tjmax offset 15 and shut down .. Im not a expert on the Core i series though. thanks

 

[BTRY B 529th FA BN]

What is the max VTT on an i7 920? 1.35v? The memory voltage max is 1.65v? Just wondering for future reference. I dont' want to go anywhere near the max.

Thanks

 

[EarthwormJim]

What is the max VTT on an i7 920? 1.35v? The memory voltage max is 1.65v? Just wondering for future reference. I dont' want to go anywhere near the max.

Thanks

I think with Bloomfield you just need to stay within .5v of your dram voltage.

Officially Intel did say 1.35v Vtt and 1.65v for memory.

Bloomfield has been out for awhile, and people have been safely using rather high Vtt voltages. Lynnfield is still relatively new, so I'm waiting a bit before I go too high on Vtt (1.25v right now, so I'm already above spec!).

My LGA7750 x3210 is going on 2 years strong now (I'd still be using it now if my mother hadn't agreed to swap with me), I'd like to do the same with my new i7 860.

 

[Kenmitch]

So far the No data is killing the pole

I'm thinking alot of the NO votes should have been

I'm scared to even try a cpu vtt close to 1.21v
And those people who just gotta vote and don't even own one.

I like the honest answers such as:

I'm to paranoind to try overclocking
Not yet but I'm working on it.........My vote as I can tell when my chip has had enough
I have a cpu vtt of more than 1.35 and so far so good
I have a cpu vtt of more than 1.40 and so far so good

Today is another tweaking day for me

I'm currently at 4.20ghz and running strong .

I'm gonna go for the 2core turbo mode today....Goal is 4.4ghz on 2core load and from my data so far it looks like my chip wil do it.

That and I gotta get a screenshot of the max I can load windows 7 x64 should be around 4.5ghz or so as boots at 4.4ghz without a problem

Maybe I'll even take the easy way out and disable C1E and speedstep for this one.

 

[CraigRT]

I have not even bothered OCing my i7 860. It runs so flawlessly in everything I've thrown at it.. Why even bother.. haha

 

[Zap]

Does socket 1366 count? I've had a Core i7 975 die. It was on an MSI Eclipse SLI board with 1A0 BIOS, with a Corsair 12GB kit with XMP enabled. Everything was completely stock and all voltages were on auto, with the only BIOS change being enabling XMP. CPU died along with some of the RAM. I'm wondering if the BIOS jacked RAM voltages really high automatically. It became unstable pretty quickly and then died. I think it was running for only a day or two before it expired.

 

[Ben90]

From my OC experience, the CPU is the most hardy component.

Ive friend multiple sticks of ram, motherboards, videocards, harddrives have committed suicide, fans stopped working, cables break, and my case is falling apart. I have yet to break a CPU. I even had a Pentium D 820 that I used as an arm scratch-er and threw around for years. Popped it into my friends mobo just for fun, and it still worked.

 

[EarthwormJim]

From my OC experience, the CPU is the most hardy component.

Ive friend multiple sticks of ram, motherboards, videocards, harddrives have committed suicide, fans stopped working, cables break, and my case is falling apart. I have yet to break a CPU. I even had a Pentium D 820 that I used as an arm scratch-er and threw around for years. Popped it into my friends mobo just for fun, and it still worked.

The thing is a rather large (and potentially fragile) part of the motherboard has been transferred to the CPU, the memory controller.

That's the whole point of this thread, concern about over-volting the IMC. Intel was not in any way really conservative with every possible voltage spec EXCEPT the Vtt spec.

Previous experience isn't really valid since these are brand new designs from Intel.

Also in the past, reasonable overclocking kept the CPU and other components pretty close to their specs. The maximum specified Vcore voltages usually don't have to be exceeded to get a moderate to even high overclock. So yes while the stock frequency is being exceeded, the specified voltages rarely aren't and most enthusiasts keep their temperatures well below the maximum limits.

Now with LGA 1156 to really do ANY overclocking you pretty much have to exceed a voltage spec.

 

[Kenmitch]

Intel was not in any way really conservative with every possible voltage spec EXCEPT the Vtt spec

Now with LGA 1156 to really do ANY overclocking you pretty much have to exceed a voltage spec.

That is the one and only thing holding these babies back....At least mine anyways

I never ran my chip at stock speed to see what cpu vtt was. Nor have I tried any whimpy mild overclocking yet. Maybe someday I'll finish the scaling of my chip just to see if it scales the same from low to high. At the moment I only have upper clocks data as my goal was 4ghz plus....Which I was told was unrealistic to hope for

4.0ghz vcore 1.325 and cpu vtt of 1.18
4.1ghz vcore 1.360 and cpu vtt of 1.22
4.2ghz vcore 1.385 and cpu vtt of 1.27
4.3ghz vcore 1.435 and cpu vtt of 1.38 < The first big jump....The chip grunts but runs

I'm no expert nor claim to be but with all the chips I've overclocked in the past the first big jump or grunt as I call it has not been the final overclock of the chip.

I voted I'm working on it in my pole

The highest I've posted and gotten into win7 with my chip is 4.557ghz with a vcore of 1.500 without any load and cpu vtt locked at 1.30v in bios....Just wanted a screenshot

Now I'm kinda playing around with the Bclock on my board to see what is the highest I can push it and remain stable....Not tested much and haven't done alot of stress testing yet but it looks like my board is good up to about 226 so far....cpu vtt locked at 1.30v

Now I guess the question would be can the Bclock kill the cpu or mb if it's stable?

 

[EarthwormJim]

That is the one and only thing holding these babies back....At least mine anyways

I never ran my chip at stock speed to see what cpu vtt was. Nor have I tried any whimpy mild overclocking yet. Maybe someday I'll finish the scaling of my chip just to see if it scales the same from low to high. At the moment I only have upper clocks data as my goal was 4ghz plus....Which I was told was unrealistic to hope for

4.0ghz vcore 1.325 and cpu vtt of 1.18
4.1ghz vcore 1.360 and cpu vtt of 1.22
4.2ghz vcore 1.385 and cpu vtt of 1.27
4.3ghz vcore 1.435 and cpu vtt of 1.38 < The first big jump....The chip grunts but runs

I'm no expert nor claim to be but with all the chips I've overclocked in the past the first big jump or grunt as I call it has not been the final overclock of the chip.

I voted I'm working on it in my pole

The highest I've posted and gotten into win7 with my chip is 4.557ghz with a vcore of 1.500 without any load and cpu vtt locked at 1.30v in bios....Just wanted a screenshot

Now I'm kinda playing around with the Bclock on my board to see what is the highest I can push it and remain stable....Not tested much and haven't done alot of stress testing yet but it looks like my board is good up to about 226 so far....cpu vtt locked at 1.30v

Now I guess the question would be can the Bclock kill the cpu or mb if it's stable?

Are you able to pass a couple passes of HCI memtest completely filling your memory with those Vtt voltages? To get a 183bclk I needed 1.25v.

 

[Kenmitch]

Are you able to pass a couple passes of HCI memtest completely filling your memory with those Vtt voltages? To get a 183bclk I needed 1.25v.

I downloaded it and I'll try it out. Maybe let it run into the AM

Currently playing around with 220 bclk trying to dial in the voltages