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E8500 OC Question

Can you list all your voltages? It will help us see if you're in "ballpark" ranges--of course, voltages very significantly from system to system. Have you read forums and articles on how to overclock? 4 GHz is around the median level where voltage increases for higher speeds start climbing...
- mcrumiller
- Post #7
- Apr 9, 2009
- Forum: CPUs and Overclocking
M
Best platform for scientific modeling?

Yeah definitely...you want as many threads running as possible for almost all scientific simulations. RAM shouldn't be a problem, as most motherboards support at least 32GB now. Of course, it entirely depends on how easily threaded your application is, but most scientific platforms (i.e...
- mcrumiller
- Post #3
- Mar 24, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

Also, I max out at 75C for Linx now.
- mcrumiller
- Post #71
- Mar 4, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

Oddysseus, make sure it's a (5000x5000 matrix) * (5000x5000 matrix). How much mem do you have?
- mcrumiller
- Post #70
- Mar 4, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

Well when I initially started OCing I just disabled pretty much everything...XD, C1E, virtualization, etc. Thermal Temp control went with it.
- mcrumiller
- Post #63
- Mar 3, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

Well, I did have CPU thermal control turned off in the BIOS, so it is entirely possible that I was hitting temps that high momentarily. Surely if I had kept it up my chip would have been fried. Here's the reasons I think I might have actually hit those temps: -I can hit 85C when running at...
- mcrumiller
- Post #61
- Mar 3, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

Idle - 1.392v. Load - 1.344v.
- mcrumiller
- Post #54
- Mar 2, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

In case anybody's wondering, I've since backed down to a 1700 FSB, which I can run at 1.44375v--I feel safe at this level. Dropped from 28 GFlops to 25, but I guess I'll save myself some hardware problems down the road.
- mcrumiller
- Post #51
- Mar 1, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

Yeah, I've been realizing that this is probably what I'll have to do. Running on a 1700 FSB gives me 850 MHz linked mem anyway, so it'll be a tradeoff. Thanks for the help/input guys, really appreciated.
- mcrumiller
- Post #50
- Mar 1, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

Bonzai: that's what I'm thinking right now. I think this is just a bad OC chip. Although 4.2 GHz is not the extreme limit of what can be expected from an E8500...I've seen people get 4.6Ghz on an E8500. I may just have a bad one.
- mcrumiller
- Post #46
- Mar 1, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

My CPU simple can't run at these speeds with less than 1.475v--I won't even boot into windows. I get BSOD'd. Stress tests fail immediately with anything less than 1.4875v, and until I go up to over 1.5v they fail within a few minutes. I'll try booting right now at 1.375 at my current speeds...
- mcrumiller
- Post #44
- Mar 1, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

I'm thinking about getting another rad for my system. I have a friend who's been doing this a looooong time. He's got basically the same components (same case, same MB, etc.) and he's putting 3 rads in. the only real way to do it in there is to put two of the rads back to back on the front...
- mcrumiller
- Post #36
- Feb 28, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

mainboard components: CPU - intel core 2 duo E8500 (stock 3.16 GHz) motherboard - ASUS P5N72-T premium 780i GPUs - NVIDIA GTX 280 x2 mem - G.Skill 2x4GB (1066 rated) psup - Sparkle 900W watercooling components: Swiftech APOGEE GT Extreme Performance Universal Water-block (CPU) Swiftech...
- mcrumiller
- Post #31
- Feb 28, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

I hit 120C when I was running almost 1.6v at 4.275 GHz. Right now I'm running 1.5125v at 4.18 GHz with VTT=1.24, and I max out at 93C with linpack. All my watercooling is Swiftech, except for an EK block that I have over my Southbridge that also covers the HSI chip between the GPUs. My...
- mcrumiller
- Post #28
- Feb 28, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

That's correct, but as I said above, the analogy is flawed because two pots of water provide more surface area for the water to cool than do one pot of water. It's more like if you had two tanks of water, each with their separate openings, or two combined tanks of water with still only two...
- mcrumiller
- Post #23
- Feb 28, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

Of course it would...but I have two rads. Two pots of water cool faster than one because double the surface area exists for two pots to cool...not so on my system, where you have the same number of radiators regardless. A more realistic analogy would be the following: what cools faster: two...
- mcrumiller
- Post #21
- Feb 28, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

Gillbot, not sure what you're claiming...you think I should have two separate loops? I think that would be sub-optimal....each loop would have half the water of the original, only now the heat for each loop is only distributed amongst half the water. The loop with the higher heat will be even...
- mcrumiller
- Post #18
- Feb 28, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

Also n7...thanks for that LinX program tip...it's amazing! Prime95 would take hours to indicate an error...this hits one in.....37 seconds!
- mcrumiller
- Post #14
- Feb 28, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

Sure, there's a lot in the loop. I suppose I could have bypassed, the southbridge, but the SB barely produces any heat anyway that it wouldn't have changed much. Additionally, two separate water loop wouldn't be any better anyway: the delta through each radiator is greatest at highest...
- mcrumiller
- Post #13
- Feb 27, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

Hey all, thanks for the input-- I hit 85C when both cores are fully loaded. I'm around 50-55C when idle. On stock settings I'm around 40C when idle, which is reasonable considering my configuration. Here's some of my specs: FSB - 440 CPU - 9.5 * 440 = 4180 MHz Vcore = 1.525v (my chip...
- mcrumiller
- Post #10
- Feb 27, 2009
- Forum: CPUs and Overclocking
M
Best CPU Stressor Out There

I've been overclocking my E8500 for a little while now and attempting to find the best ways to stress my system. I had been using Prime95 up until now as the best system stressor--using small FFTs I could push my cores (water-cooled) up to around 80-85C, and I didn't really want to extend...
- mcrumiller
- Thread
- Feb 27, 2009
- Replies: 70
- Forum: CPUs and Overclocking
M
Is this right? **PICS**

To elaborate, your machine generates a lot more heat and consumes a lot more power when you're running 3GHz versus 2GHz. When your machine detects you're under load, it cranks up the CPU multiplier to 9x (or whatever you have it set on), and sets it to 6x when idle (after all, if idle, you...
- mcrumiller
- Post #3
- Dec 18, 2008
- Forum: CPUs and Overclocking
M
Asus Striker II Formula or Asus P5N72-T ?

Hey there--I know this is a little late, just joined the forums. I built a machine recently with the P5N72-t premium. Just so you know, the P5N72-T and the Asus Strike II Formula are the EXACT SAME BOARD. They have different stickers, one has a slightly better heatsink, and the colors of...
- mcrumiller
- Post #3
- Dec 18, 2008
- Forum: Motherboards

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