Question regarding my E8400 temps, voltages and overclock - Hardware & Software

Over the past week I've been slowly overclocking and my temperatures haven't changed. Before I overclocked I lowered voltages down quite a bit and now I'm always at 36C idle. I overclocked to 3.336GHz. I just want to make sure that everything looks fine and that my voltages, etc. are safe. [IMG]http://i47.tinypic.com/11w53dx.jpg[/IMG]

if it doesn't crash/overheat, you're fine :P

[QUOTE=CombineGuru;18473883]if it doesn't crash/overheat, you're fine :P[/QUOTE] no OP temps should stay under 76c (comfort zone usually), voltages should not go over 1.47 or so. get that e8400 4, 3.33 is nothing near to what these chips usually get to.

[QUOTE=whatnow;18484390]no OP temps should stay under 76c (comfort zone usually), voltages should not go over 1.47 or so. get that e8400 4, 3.33 is nothing near to what these chips usually get to.[/QUOTE] CPUs aren't GPUs. Anything over 65C and you should start getting worried.

[QUOTE=whatnow;18484390]no OP temps should stay under 76c (comfort zone usually), voltages should not go over 1.47 or so. get that e8400 4, 3.33 is nothing near to what these chips usually get to.[/QUOTE] I wouldn't go over 1.45, past 1.45 the lifetime of the chip will deteriorate.

[QUOTE=GiGaBiTe;18484633]CPUs aren't GPUs. Anything over 65C and you should start getting worried.[/QUOTE] I don't have the time to explain, but here. [url]http://www.overclock.net/intel-cpus/476469-truth-about-temperatures-voltages.html[/url] good read for.. everybody When they say CPUs are designed for a 10 year lifetime, they mean 10 years of constant 24/7 use (which I doubt anybody would do anyway). If your CPU is overclocked above maximum ratings, say 2 years will be chipped off it's lifetime. Say, 22 years instead of 24 years. You're not going to have the same computer for 20+ years will you? People make a big deal out of 1.45+ vcore on 45nm penryns. [quote] The 45nm fabrication process could have also caused an increase in silicone heat resistance. If you look at the TJ Max Targets for almost all Intel CPUs, they are all higher which according to that PDF means they can take higher temps.That's not conclusive evidence that Intel is working on making CPUs more durable, but why wouldn't they[/quote] After seeing many Penryns go over 1.45 (usually around 1.47-1.5) on a high quality board still running strong (after years) , I'll conclude that 1.45 isn't always the "limit". I've never seen anybody venture over 1.52 or so, but this guy here @ OCN tried a experiment with his E6300 (45nm low binned cpu). He ran it @ 1.6 for about 4 months until he check ed the bottom of the CPU and the contacts looked burned. pic (look towards the bottom, note one looks like it has been "drilled". [img]http://img185.imageshack.us/img185/3945/burnedpad.jpg[/img] [url]http://www.overclock.net/intel-cpus/552895-experiment-45nm-cpu-vcore-testing-final.html[/url] Degradation.. it's always happening, going outside spec is always going to cause it to degrade faster. There isn't much to worry about if you're in spec, or close to spec. (e.g. cpu stable, voltage 1.47). keep this in mind [quote]What about Maximum Voltages and Overclocking? If you run at or below the Absolute Maximum Voltages for your CPU, you should never experience degredation or lose of life on your CPU. Overclocking will not decrease the lifetime of your CPU if and only if certain criteria are met. 1.) Electrical Specification must be satisfied (1.55v for 65nm CPU and 1.45v for 45nm CPU) 2.) Signal Quality must be clear (Overclock must be perfectly stable, GTL lanes may need to be tweaked) 3.) Mechanical specifications met (There is not a physical defect and the insides have not previously been gutted by running 1.9v through it) 4.) Thermal Specifications must be satisfied (The IHS temp must be below Tcase)[/quote] as well as [quote]Moreover, if a device is subjected to these conditions for any length of time then, when returned to conditions within the functional operating condition limits, it will either not function, or its reliability will be severely degraded.[/quote] rate me box if you want.

[QUOTE=CombineGuru;18473883]if it doesn't crash/overheat, you're fine :P[/QUOTE] Don't listen to this moron. Whatnow has pretty accurate information, but just to err on the side of caution, I would preferably not treat Vcore so lightly. I my self dislike going near 1.45V on Intel processors. It's with in spec with Phenom II, as I believe AMD uses a silicon dioxide Silicon on Insulator 45nm process while Intel uses a High-K SOI 45nm process meaning that Phenoms accept more voltage safely, but for an Intel processor, I really wouldn't push it past 1.4. Even then that's usually excessive considering how well these chips clock with barely any voltage raising. [editline]01:16PM[/editline] [QUOTE=GiGaBiTe;18484633]CPUs aren't GPUs. Anything over 65C and you should start getting worried.[/QUOTE] This is correct, afaik Intel processors will be fine up to like 100C, but the chance of permanent damage and severe life time deterioration really begins happening over 65C or so. Load temperatures when running something incredibly demanding like Prime95 should be in the 65s to be safe, though with such benchmarking programs you can sometimes hit 70. Just try to keep your average temps lower than that, it's really not suggested to run a CPU so hot.

100c is the max for the cores, but Tcase is what you should look out for. It is usually 10-25c lower than the cores. the maximum is usually around 72, and is what everybody used to think was the maximum core temperatures. That said, the maximum core temperature should be around 76-86 depending on the chip. You should never want to be near/at maximum temperatures.

sigh. By overheating I don't mean 85*C or whatever the shut-off point of the chip is. I mean the maximum recommended temperature, which with this CPU seems to be 65*C.

[QUOTE=GiGaBiTe;18484633]CPUs aren't GPUs. Anything over 65C and you should start getting worried.[/QUOTE] Unless you're planning on keeping your CPU for 10+ years I disagree. edit: late

[QUOTE=New Character;18486242]Unless you're planning on keeping your CPU for 10+ years I disagree. edit: late[/QUOTE] My CPU regularly tops out in the nineties (celsius)

[QUOTE=CombineGuru;18486195]sigh. By overheating I don't mean 85*C or whatever the shut-off point of the chip is. I mean the maximum recommended temperature, which with this CPU seems to be 65*C.[/QUOTE] Doesn't change the completely retarded and oversimplified comment you made. If some idiot is running his CPU with a Vcore of 2.45 with a phase changer, just because the CPU is at 30C and the system is stable doesn't mean that his CPU is "fine".

OP, I've got a E8400 and you're doing just fine. Just start with 3.6 ghz, it overclocks really well. Be at that for a while, then go to 3.8 (that's where I am now), and when my new cabinet cooler can be mounted (fucking screws) I'm going to 4.0 or higher if possible. Larger steps than 336 mhz when overclocking the E8400 is not to worry about, only after you pass 3.6 ghz.

[QUOTE=Blackwater;18491633]OP, I've got a E8400 and you're doing just fine. Just start with 3.6 ghz, it overclocks really well. Be at that for a while, then go to 3.8 (that's where I am now), and when my new cabinet cooler can be mounted (fucking screws) I'm going to 4.0 or higher if possible. Larger steps than 336 mhz when overclocking the E8400 is not to worry about, only after you pass 3.6 ghz.[/QUOTE] What are your voltages at? Once I got to 3.4 I had 2 blue screens in one day and I lowered to 3.3 to see if it was the somehow the cause

there isn't really a magic formula to tell if your chip is going to run at x voltage at y clocks. You just have to find out. However, most E8400s average about 1.25-1.32 @ 4GHz (E0) (1.4v C0).

Would having 3.4 at 1.10 be a cause of blue screens?

[QUOTE=Tippmann357;18503588]Would having 3.4 at 1.10 be a cause of blue screens?[/QUOTE] It can be. Since you are only at 1.1, you have room to play around. Try upping the voltage a little and see if it still blue screens.

1.1 is a fairly low voltage when overclocking, bump it to like 1.35 and see how far you can go.

[QUOTE=Tippmann357;18503588]Would having 3.4 at 1.10 be a cause of blue screens?[/QUOTE] Let's see. If 1.225v is the stock voltage, and you're overclocking to 3.4GHz while undervolting to 1.1v... Nah nothing wrong with that at all.

[QUOTE=New Character;18486242]Unless you're planning on keeping your CPU for 10+ years I disagree. edit: late[/QUOTE] I still have my original gaming machine from 1997, so yeah.

[QUOTE=waxrock;18504179]Let's see. If 1.225v is the stock voltage, and you're overclocking to 3.4GHz while undervolting to 1.1v... Nah nothing wrong with that at all.[/QUOTE] that isn't always true, I ran my Q95550 @ 3.2 @ 0.98 vcore, the "stock" voltage was 1.18. It may be the "stock" voltage, but it isn't always what the CPU needs to be stable with your setup (e.g. ram, northbridge also matter)

I OCed my old P4 3.2 to 3.8, It hit 85 so I down clocked it and it still works but starts making sounds under heavy load. I have a E8400 now anyway.

[QUOTE=Lf757;18505472]I OCed my old P4 3.2 to 3.8, It hit 85 so I down clocked it and it still works but starts making sounds under heavy load. I have a E8400 now anyway.[/QUOTE] Processors don't make sounds.

[QUOTE=whatnow;18497844]...However, most E8400s average about 1.25-1.32 @ 4GHz (E0) (1.4v C0).[/QUOTE] Dammit, and I thought I just got bad batch of E8400. :( I actually need 1.4v for a fucking 4GHz when 3.8GHz is stable at 1.328v.

[QUOTE=Bengley;18505522]Processors don't make sounds.[/QUOTE] Yes they do when damaged.

[QUOTE=Lf757;18505592]Yes they do when damaged.[/QUOTE] Um, what?

[QUOTE=Lf757;18505592]Yes they do when damaged.[/QUOTE] Only if they're physically on fire they might crackle a bit.

[QUOTE=Bengley;18505522]Processors don't make sounds.[/QUOTE] no, but capacitors do.That's probably what it was.

I raised my voltages a little bit and I haven't had any BSODs or crashes yet

[QUOTE=Bengley;18506072]Only if they're physically on fire they might crackle a bit.[/QUOTE] Hey no point rating me dumb, It's well known that the capacitors do, and so my CPU was making a sound learn about PC's more before you come in this section.