So, you’re of the opinion that running an 8700k @ 5.1 GHz with a voltage of 1.41v is probably safe as the “daily driver” config? It is delidded and will be running an Arctic Liquid Freezer 240mm AIO.
I should clarify, for 24/7 use I personally wouldn't run much more than 1.4 to 1.45 voltage through my chips on water. But my point from above still stands, always try to find the LOWEST possible stable voltage. Whether it's at 1.25, or 1.22 or 1.2 or 1.19 or 1.08 etc. Whatever the lowest voltage you can achieve stable is what you should run. From my experience, it will probably be somewhere in the 1.2 to 1.22 range though for 4.8ghz from the sound of your chip. But you might get lucky and be able to get it into the 1.19 range as well, just gotta test it and see.
So, you’re of the opinion that running an 8700k @ 5.1 GHz with a voltage of 1.41v is probably safe as the “daily driver” config? It is delidded and will be running an Arctic Liquid Freezer 240mm AIO.
These are some numbers Ive been able to achieve with my setup, would appreciate some input as to how I can get some temps down and some possible settings to change with my setup.
I have an 8700k with the Maximus hero x wifi board. I have followed the settings proposed by der8auer. I am using an EK Water Blocks 120mm radiator liquid cooling loop, one vardar fan. 3200hmz trident z ram cl16. I am limited to the 120 cooler due to case design. (Large case, ala silverstone rz01)
Load line calibration set to 6, at 5 it would crash under these numbers.
At 5ghz, I was able to get it stable at 1.375, but 26.6 prime 95 was hitting nearly 97c.
At 4.9 ghz, 1.31 was stable, around 86c prime 95.
At 4.8ghz, 1.25 seems stable, around 77c stress test.
Do those numbers look ballpark? Any other setting I could look at to get the the temps down? Id like 5ghz, but 97c is too high. ideally Id like everything below 80c stress test, but I may need to stick to 4.8 for that.
I loaded Windows on my new rig this morning and have it running Prime with the following settings:
1. CPU multiplier: 50
2. Cache multiplier: 44
3. CPU voltage offset: .2v (Vcore is now at 1.365 during the Prime run)
4. AVX offset: -2
I’ll have a better feel for temps shortly but I have a few questions in the meantime:
1. What should I shoot for on cache multiplier?
Nice, I don't think Newegg will do that for those of us that paid $420. I'm curious as to what would be the best delidding tool out there, truthfully it's something I'll probably only use once.
Honestly, if you’re going to only use the tool once, send your CPU to Silicon Lottery and have them do it for $30. They’ll also delid AND bin if for you for $60. That’s what I did and they binned mine as a 5.1GHz model. So far, in limited testing, it is comfortably running 5 GHz with a -2 AVX offset and roughly 1.32 volts; I can probably drop that voltage and temps have been very good.
So how many CPUs should the average enthusiast buy to do this binning process? Then you have to sell the ones that didn't make the cut. Silicon Lottery's markup is more bearable if you weigh the odds and think through what might have to be done to produce their guaranteed result.Why would you get them to bin your CPU, you can do that yourself?
Plus they probably only use basic tests to prove stability.
Why would you get them to bin your CPU, you can do that yourself?
Plus they probably only use basic tests to prove stability.
So how many CPUs should the average enthusiast buy to do this binning process? Then you have to sell the ones that didn't make the cut. Silicon Lottery's markup is more bearable if you weigh the odds and think through what might have to be done to produce their guaranteed result.
Yesterday I noticed Micro Center dropped the price of the 8700K from $420 to $380. Went to the store today with my receipt for the 8700K I bought two weeks ago and they refunded me the $40 difference.
I had intended on likely buying my 8700K from them in the first place, but they kept pushing back the date and I scored one on Newegg. I was already going to pay them to do the delid, so why not bin it while they're at it? I was really curious to see if I got a "golden" chip or not. As it turns out, I didn't get a golden one, but I got a pretty decent one.
A few updates on my overclocking journey:
1.) Removed single Vardar fan from my 120 EK water cooled radiator; added 2 Noctua NF-F12 in push/pull.
2.) Was able to get down to a stable 1.3 at 4.9ghz, with prime 95 26.6 at max temps of 84c.
3.) Previously only 1.31 was stable, but at 87c, so a slight improvement with the fans running 100%.
4.) At 4.8ghz, 1.26v seems stable and stays at 80c or under prime 95.
My testing methodology is to get at least an hour in prime, then I do realbench, cinebench, etc. If it proves stable, I'll do a 24 hour test and see how far I can take it.
How can you be sure they returned the same CPU to you if you got a golden chip?
I trust them and they have rave reviews from others. I'm very happy with what I'm seeing.
How much are you guys paying total for the delid service? $30? Does that include shipping both ways?
ROCKIT is having a sale on their delid kit for $40 plus 20% off and also free shipping for Cyber Monday FYI. I think I am going to go with that for my 8700K.
$30 and it includes return shipping. You have to pay to ship it there (was roughly $6 with insurance IIRC).