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e2180, Abit ip-35e
I've never overclocked, but when I purchased this PC, I knew that it
would be good to overclock. Also has an excellent CPU fan. Intel e2180 Abit IP-35e 4GB DDR2-680 (according to BIOS) CPU Core Voltage says 1.325 OV CPU VTT Voltage says 1.200v Can anyone suggest what to put in for values? I'm only interested in going up to about 3.0GHz or less. I've read very little, and I don't understand what people mean when they say, "stock" or "up a notch". So plain English please. Or a website that explains this. I've googled overclocking, but there's too much information out there, when all I should have to do is change a few settings. Thanks |
#2
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e2180, Abit ip-35e
area51 wrote:
I've never overclocked, but when I purchased this PC, I knew that it would be good to overclock. Also has an excellent CPU fan. Intel e2180 Abit IP-35e 4GB DDR2-680 (according to BIOS) CPU Core Voltage says 1.325 OV CPU VTT Voltage says 1.200v Can anyone suggest what to put in for values? I'm only interested in going up to about 3.0GHz or less. I've read very little, and I don't understand what people mean when they say, "stock" or "up a notch". So plain English please. Or a website that explains this. I've googled overclocking, but there's too much information out there, when all I should have to do is change a few settings. Thanks Intel Pentium Processor E2180 (1M Cache, 2.00 GHz, 800 MHz FSB) 65 nm (so you can use a bit extra voltage). The 45nm processors are limited to 1.4V long term. The 65nm can take more than that, but I don't know how much more. I boosted my 65nm processor by 0.100 volts and got a 33% overclock on it. But that wasn't enough voltage to make it stable 24/7. I dropped back to stock, after doing a quick test. Going from 2GHz to 3GHz is ambitious. It can be done, but is subject to the limits of the individual processors (did you get a "good" one or not). Your processor has an "external clock" setting. It will be 200Mhz. 200*4 = quad pumped FSB800. That's where the FSB speed rating comes from. It's the CPU input clock times four. Your processor is locked with a 10X multiplier. 200*10 = 2000MHz core speed. To hit 3GHz, you need 300*10 = 3000MHz. The same input clock, also affect the memory. The BIOS has a "DRAM Speed (CPURAM)" setting. It sets a ratio between the input clock, and the DRAM clock. As you crank your CPU, you're also accidentally cranking the DRAM. You have to change the DRAM Speed (CPURAM) setting to compensate. For example, say CPURAM was 5:4. That ratio is 1.25X. Now, say I was overclocking the CPU by 25 percent. To compensate, if I set CPURAM to 1:1, that is a reduction from my previous setting by a factor of 25%. Then, the input clock "bump" up of 25%, followed by the reduction in DRAM setting from 5:4 to 1:1, leaves the DRAM at its original speed. OK, so first, set a reasonable target. Say a 33% overclock. First, work out the necessary DRAM compensation setting. Drop the ratio so the RAM won't run too fast when you reach your max predicted speed. (Note - I'm giving this simplified method, so I don't have to write a section about CAS and friends.) Then, "scan upwards" and watch the system stability. Don't use your Windows hard drive for this. Mistake. Use a memtest86+ floppy, or a Linux LiveCD, as a test mechanism. They can't be corrupted like Windows can. You don't want to boot Windows on top of flaky hardware, because your registry can end up corrupted. So, at stock, you're at 200MHz. Make your DRAM correction (the one that would be accurate, if you made it all the way to a 33% overclock). Now, set the input clock to 205MHz. Boot and test stability as you see fit. Now, say the computer crashes at 205. Now, go to Vcore. Say Vcore was 1.325V. Bump Vcore to 1.350V and retest. Is it stable ? OK, now increase input clock to 210MHz, boot your Linux CD and test. Is it stable ? If not, increase voltage to 1.375V. By collecting that info, you'll see a "ramp". Freq | __/ | __/ |/ +-------- VCore voltage The ramp allows you to estimate what it'll take to go higher and higher. Some processors have a brick wall like this. My old Pentium 4 did this. Freq | ___________ | __/ |/ +-------- VCore voltage I could increase VCore all day long, and I'd get no more frequency from it. If you go too high, you'll burn it out. And the motherboard design, and BIOS, may not actually give good advice on how much voltage is safe. This is... all part of the "fun". I did 33% with my 2.6GHz Core2, with 0.1V of Vcore bump, so I would expect you could get at least that much without damage. Any more than that, do some more research. A good place to look, is the "Customer Review" section for the processor in question (Feedback tab). Note that each processor is different, so different people get different results. Expect a statistical spread. Intel bins the processors (sorts them), so you don't always get a heroic one. "E2180 2.00 GHz FSB800" http://www.newegg.com/Product/Produc...82E16819116052 "Overclocks to 2.8 for me. Wont go up any higher due to instability. Got a bad chip I guess. running 2.8 @ 1.28 volts right now @ 45c load. More voltage wont work with this chip though " --- [Guy hit a brick wall... too bad, so sad] "Easily pushed to 2750 MHz with no voltage increase. Starts to get a little hot" "I like it. 3.0Ghz 1200mhz Fsb, with only minor voltage changes" "Overall still king of the 65nm budget chips. I've seen even the newer revisions take punishment with 1.6v+ clocking in at 3.7GHZ+" --- [ Um, OK, suicide run I guess :-) ] It's a matter of how much of a risk you want to take with the processor, whether you'd contemplate higher voltages. Also, a word about how the VCore voltage is added. The VID code, comes from the processor. Intel "range locks" the VID, to a certain range. VID goes up and down, due to Intel SpeedStep (EIST), which is why the motherboard manufacturer doesn't bypass it entirely. If the motherboard is to easily support EIST, they use the VID pins that come from the CPU. And that means, any large VCore boost, is added after the fact. On my motherboard, I used a resistor mod, to get the extra voltage. But a decent motherboard, offers a "bump" from the BIOS setup. CPU ---- range ------------ (+) ----- final VCore voltage locked | VID Boost addition term from BIOS So the "boost", tends to be outside the so-called valid range that Intel would prefer you use. My motherboard didn't offer "boost" from the menu, and I used a resistor mod. But most enthusiast boards, add that boost (somehow). And boosting it, makes the processor hotter. Note - I'm not good at this stuff, and there are a few excellent tutorials on the web, which go into a lot more minute details. (Anandtech had at least one article of some merit.) The above is simple minded, because I don't know how to set terminator voltages, NB voltages, for max overclock. If you look hard enough, you'll get a better article than what I just wrote. BTW - Since Abit is out of business, it isn't easy to find manuals and the like. To answer the above, I was lucky to have a copy of "Abit_IP35_Manual.pdf" to verify the necessary basic settings are in the BIOS screens. Paul |
#3
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e2180, Abit ip-35e
On Jun 24, 11:25*am, area51 wrote:
I've never overclocked, but when I purchased this PC, I knew that it would be good to overclock. Also has an excellent CPU fan. Intel e2180 Abit IP-35e 4GB DDR2-680 (according to BIOS) CPU Core Voltage says 1.325 OV CPU VTT Voltage says 1.200v Can anyone suggest what to put in for values? I'm only interested in going up to about 3.0GHz or less. I've read very little, and I don't understand what people mean when they say, "stock" or "up a notch". So plain English please. Or a website that explains this. I've googled overclocking, but there's too much information out there, when all I should have to do is change a few settings. Thanks Circuit & Things: Lots of product selection and best price deals! I had a great experience with Circuitsnthings. I had to order a computer for my classes and went to circuitsnthings because I thought it would be cheaper than going to the mall or computer center. I was right, I managed to save at least $90. The item was delivered within a week and in a very good condition. I am very satisfied with my experience with circuitsnthings.com digital shop. It is very easy and convenient. Fast delivery, product came packaged very well. It saved a lot of money. Don't have to run around looking for products, no hassle and no trouble regarding the item. Prices are good and it provides excellent order accuracy, delivery speed, and availability of products wanted. Since my orders have been handled accurately, I have had no reason to use their customer service. Overall, a very good experience with electronics (and other items purchased). I buy mostly from circuitsnthings.com when I can. |
#4
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e2180, Abit ip-35e
I wonder where you work. NOT!
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