wutske Posted December 26, 2022 Share Posted December 26, 2022 I haven't decently overclocked anything since my Athlon XP 2500+ (and I totally didn't win the silicon lottery with that one 🙃), but lately I've had a lot of fun with some LGA775 CPU's. I've got some nice numbers on air, especially with the -5°c we've got lately here in Belgium, but I feel some of my cpu's can go even faster with some more extreme cooling methods (and having to wait for a cold night, then sitting in my bedroom on my bed to trying to overclock the computer that's outside on the balcony isn't exactly comfortable). So there's a couple of options I'm considering and I'd love to get some feedback on my thought before I make a decision. FYI: I'm not looking to break any records, I'm mostly looking into this to have fun (though moving up some spots in the rankings is always a nice reward 😁) Peltier (TEC) This is probably the worst option due to how inefficient these things are. Even a CPU which runs stock at 95W needs a 200W peltier element and some decent water cooling to keep it under control. I'm also not really expecting sub-zero temperatures under load with these. Phase change cooling (SS) The thing I like most about SS is that they are easily reusable and I can pop it on a CPU whenever I want, no need to go buy consumables. However, I'm having a hard time finding one and shipping these from abroad seems risky to me (let alone the fact that maintenance on these things requires skills and certifications which I don't have and which are expensive to get in Belgium). Single stages go sub-zero, but it's limited, especially under load and these things usually have a certain TDP range in which they work most efficiently. Dry ice To be honest, this seems to me like the best way to start, it's not as extreme as LN2 but -78°c is already a pretty damn good temperature. I'm a bit worried about the costs of it in the long run. I found some stores selling dry ice, but they all seem to require you to buy a minimum of 5kg for roughly €20-€25. I also can't find any numbers online on how much dry ice you'd use in a day, but the main issue is that you must use it all in one day since dry ice is kind of gone after a day or two, so I need to plan in advance when I want it and then probably spend over an hour in the car to pick it up. There's plenty of options for pots and accessories (thanks to this topic), which is great. Starting with DI seems kind of easy and relatively cheap to start since it doesn't require any special gear. LN2 This is probably the most extreme (apart from helium) and is a immediately a deep dive into extreme overclocking. I'm not sure if it's the "best" to start this low. I can't seem to find stores that don't require you to get a quote for pricing but based on this topic I guess about €1/L seems to be a common price. I remember from some Youtube videos that 10-20L a day isn't uncommon, so the price is a bit similar, but I can buy a larger quantity and use it a couple of weekends (thus requiring a bit less planning compared to DI, since I don't need to order on a specific date/time and drive like an hour to get it). Same remark when it comes to pots and accessories. Dewars can be rented but I suppose they don't come with the right fill lines so I'll have to get those too (+ some good gloves), which makes it a bit more expensive to start with. So, am I seeing it the right way or am I missing some important things ? Quote Link to comment Share on other sites More sharing options...
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