WEBVTT 00:00:07.839 --> 00:00:17.520 all right guys so stock CPU performance of the AMD FX 8150 bulldozer CPU has 00:00:14.639 --> 00:00:23.840 been examined already at this time now we are going to have a look at how high 00:00:20.199 --> 00:00:25.359 we can overclock one of these chips and 00:00:23.840 --> 00:00:30.199 then what kind of performance we can squeeze out of it so for cooling I'm 00:00:27.320 --> 00:00:34.480 going to be using a Corsair h100 you can't really see what's lit up there you 00:00:31.599 --> 00:00:41.440 go in the highest performance profile okay so that's installed on the 8150 00:00:36.879 --> 00:00:42.920 I've got my MSI 990 fxa gd80 motherboard 00:00:41.440 --> 00:00:47.399 here the reason I chose this one over the Crosshair 5 was due to the fact that 00:00:45.719 --> 00:00:51.399 I really like the way the BIOS is laid out and I'm actually going to do a video 00:00:48.879 --> 00:00:56.559 about click BIOS 2 which is what they're what they're calling this particular 00:00:52.960 --> 00:00:58.320 layout um in an upcoming video it's oh 00:00:56.559 --> 00:01:01.480 whoops that's not what I meant to do uh it's pretty cool though actually just 00:00:59.640 --> 00:01:08.360 the way way that you navigate around is much much faster than other EFI BIOS 00:01:05.519 --> 00:01:13.240 implementations and it's also much faster than the old way of doing things 00:01:10.720 --> 00:01:16.439 which was the traditional BIOS so I'm very very impressed so far you can 00:01:14.799 --> 00:01:24.520 either use the mouse or the keyboard although I think keyboard is a little bit faster but uh yeah very very cool so 00:01:21.400 --> 00:01:27.400 stay tuned guys remember overclocking on 00:01:24.520 --> 00:01:30.759 the FX series chips all of them is quite easy basically the only settings that 00:01:29.320 --> 00:01:34.680 we're really going to be looking at I've turned off OC Genie I've turned off all 00:01:32.600 --> 00:01:38.840 of that automated stuff but we're pretty much going to be looking at CPU ratio 00:01:36.880 --> 00:01:43.920 right here okay and that's not going to be Auto by the time we're done it's 18 00:01:41.280 --> 00:01:49.360 by default I'm turning off turbo core technology as well just so that I don't 00:01:47.119 --> 00:01:53.479 have any additional curve balls thrown in I'm just looking for straight eight 00:01:51.439 --> 00:01:58.960 cores all enabled all at the same frequency how high can we overclock I've 00:01:56.159 --> 00:02:03.880 got my DDR3 at 1600 MHz so I'm using hyperx Genesis from 00:02:01.520 --> 00:02:09.160 Kingston okay moving down everything is going to be pretty 00:02:06.759 --> 00:02:13.720 default except we're disabling spread spectrum and we are going to be 00:02:10.720 --> 00:02:15.800 adjusting CPU voltage as needed in order 00:02:13.720 --> 00:02:24.440 to get stability at the settings that we're trying so why don't we go ahead 00:02:18.720 --> 00:02:24.440 and uh change the CPU ratio 00:02:26.440 --> 00:02:31.800 to 22 and we'll leave it at default 00:02:29.879 --> 00:02:35.040 voltage and see what happens just as a starting experiment I'll bring you guys 00:02:33.400 --> 00:02:40.280 along for the ride for this whole video so you can see how the overclocking 00:02:37.239 --> 00:02:43.760 experience is on the FX series 00:02:40.280 --> 00:02:45.040 chip booted up at 4.4 GHz but yeah that 00:02:43.760 --> 00:02:50.239 definitely wasn't going to happen at stock voltage so the voltage has turned 00:02:46.920 --> 00:02:53.040 up to 1.45 in the BIOS uh you can see 00:02:50.239 --> 00:02:56.959 CPU Z is reading quite a bit lower but you can take any software voltage 00:02:54.560 --> 00:03:01.319 readings with a huge grain of salt so I'm going to go ahead and find out if 00:02:58.560 --> 00:03:05.159 this particular voltage is is at least somewhat stable before I try to move on 00:03:03.440 --> 00:03:07.760 any further so here we're just going to check task manager really quick make 00:03:06.599 --> 00:03:12.879 sure all of the threads are appropriately loaded which it appears that they are so if this runs for a 00:03:11.799 --> 00:03:18.280 couple minutes what I'm going to do is I'm going to go back to the BIOS crank up the speed a little bit more and see 00:03:16.200 --> 00:03:22.400 if I can make it very unstable then I'll scale it back and I do more long-term 00:03:20.640 --> 00:03:29.159 testing well I made a critical benchmarking mistake I started benching 00:03:25.360 --> 00:03:30.840 without my cat in my lap which he uh 00:03:29.159 --> 00:03:35.159 quickly REM so now I will have more luck of course 00:03:32.720 --> 00:03:39.200 but I tried at 4.6 GHz at the same voltage settings I was using before 00:03:37.120 --> 00:03:42.439 1.45 uh didn't have any luck so I cranked the voltage up a little bit 00:03:40.519 --> 00:03:46.760 higher just to see uh what was the limiting factor in the overclock and I 00:03:44.799 --> 00:03:51.280 got a no post scenario which I wasn't able to recover from so I had to do a 00:03:49.120 --> 00:03:54.879 clear simos which meant all of my settings were restored to factory 00:03:53.280 --> 00:03:58.680 default including all my boot settings and all that which is a good lesson 00:03:56.439 --> 00:04:04.439 because I'm about to show you guys why you should always use overclocking 00:04:01.720 --> 00:04:09.280 profile so we're going to go ahead and with every oh whoops with everything 00:04:07.760 --> 00:04:14.319 default I always use my last overclocking profile for that so set 00:04:11.799 --> 00:04:18.840 name we're going to call this default so I haven't changed any performance 00:04:16.160 --> 00:04:24.440 settings I mean I've got my RAM set to stock timings manually and I've got my 00:04:22.199 --> 00:04:28.800 boot settings all correct I've turned off spread Spectrum so I'm basically 00:04:27.000 --> 00:04:32.520 ready for overclocking but I haven't done anything yet so that that means 00:04:30.080 --> 00:04:39.919 that if I have to clear the SOS again what I can do is I can just go into the 00:04:35.520 --> 00:04:41.520 profile down here and then I can load 00:04:39.919 --> 00:04:45.160 profile 6 which will get me back to square one without actually being 00:04:43.520 --> 00:04:52.479 completely back to square one where I have to do things like turn off the full 00:04:49.639 --> 00:04:56.280 screen logo display for example all right so let's get back going here and 00:04:55.160 --> 00:05:01.280 I'm going to go ahead I'm not going to put the CPU voltage quite as high this 00:04:58.280 --> 00:05:04.280 time so we're going to go with 00:05:01.280 --> 00:05:05.800 1.4 so I cranked it up to like 1.5 to 00:05:04.280 --> 00:05:10.199 see what would happen but let's go with like 1.4 00:05:07.440 --> 00:05:14.840 65 which is pretty high pretty high this is like I would call this not 00:05:12.160 --> 00:05:18.639 necessarily 24/7 safe but we'll have a look at what kind of temperatures we end 00:05:16.240 --> 00:05:23.199 up with before we say that for sure and then let's aim for 00:05:21.400 --> 00:05:31.000 4.6 or 4.8 Wait no that's not right 4.6 gigz 00:05:27.440 --> 00:05:32.800 see what happens here 00:05:31.000 --> 00:05:36.400 so here's a quirky thing that is just it's one of those things that happen 00:05:34.240 --> 00:05:40.639 sometimes you can see we're at 4.6 GHz now booted into Windows I have increased 00:05:38.800 --> 00:05:45.440 the core voltage to 1.48 something I believe in the BIOS 00:05:43.400 --> 00:05:49.479 which is very high like I said before be be careful increasing voltage like this 00:05:47.840 --> 00:05:53.400 but uh no matter what we did with the voltage by increasing the multiplier 00:05:51.160 --> 00:05:58.600 more I was not able to get stability but by increasing the bus speed now I booted 00:05:55.919 --> 00:06:02.319 into Windows so sometimes it is a combination between bus speed and 00:06:00.720 --> 00:06:06.680 multiplier that is going to get you the best stability now what I did do just to 00:06:05.199 --> 00:06:11.880 make sure that memory is not the limiting factors I turned it down to 00:06:08.199 --> 00:06:13.199 1333 MHz so it's a different divider so 00:06:11.880 --> 00:06:17.400 that um yeah so that I can rule that out as 00:06:15.800 --> 00:06:22.840 the as the problem if we do run into stability because otherwise it would be overclocking the memory now I do have a 00:06:20.599 --> 00:06:26.639 slight overclock on the hypertransport blast as well as uh what is it there's 00:06:25.680 --> 00:06:31.240 something else that's slightly overclocked now that I've done this but I'm not going to worry too much about 00:06:29.400 --> 00:06:36.880 that so let's go ahead and fire up Prime 95 and see if we have any stability 00:06:33.560 --> 00:06:39.520 whatsoever at these settings and my 00:06:36.880 --> 00:06:42.759 mouse froze it looks like we do not so I might have a bit of a dud of a chip uh 00:06:41.360 --> 00:06:47.000 here's a luxury that I have that you guys don't I'm going to go ahead I'm going to try throwing it in the 00:06:45.080 --> 00:06:50.599 Crosshair 5 and I'm going to see if the results I get are any different right 00:06:48.360 --> 00:06:54.759 now it looks like my limit on this particular CPU is going to be around the 00:06:52.240 --> 00:07:00.039 4.4 to 4.5 GHz range all right so here I am in the 00:06:56.800 --> 00:07:04.319 Crosshair 5 BIOS and I'm going to try 00:07:00.039 --> 00:07:08.879 straight for 4.6 GHz with the there you 00:07:04.319 --> 00:07:11.520 go Target CPU frequency 4.6 GHz with my 00:07:08.879 --> 00:07:16.919 um with 1.45 volts just to see what happens and then here we go 1.45 volts 00:07:15.560 --> 00:07:22.080 to see what happens and I also made another critical mistake in benchmarking 00:07:19.120 --> 00:07:28.520 I got out of my chair and now there are two grooming cats in it who don't look 00:07:25.479 --> 00:07:30.720 like they are likely to 00:07:28.520 --> 00:07:34.520 move lo and behold we have a little bit of 00:07:32.240 --> 00:07:39.080 stability at 4.6 GHz so it's still running I'm going to go ahead and stop 00:07:37.120 --> 00:07:43.280 it now and let's see if we can push it any further on this particular 00:07:41.280 --> 00:07:47.919 board well I tried another full multiplier for 4.8 and that was not 00:07:45.560 --> 00:07:53.280 stable but I dialed it back 0.5 of a multiplier to 232 and we're at 4.7 and 00:07:51.639 --> 00:07:56.960 it's been priming for a little while now now one thing that makes me kind of 00:07:55.000 --> 00:08:00.039 uncomfortable about FX overclocking right now is I don't really have an 00:07:58.159 --> 00:08:06.720 accurate way to monitor processor uh excuse me processor 00:08:04.280 --> 00:08:11.560 temperatures because I know for a fact that is not right there's no way with 00:08:08.919 --> 00:08:15.639 the temperature of the water on the h100 that that is anywhere near right it's 00:08:13.240 --> 00:08:19.199 got to be significantly higher than that so um that worries me a little bit so I 00:08:17.759 --> 00:08:23.879 don't think I want to push the voltage too much higher given that 1.45 is the 00:08:22.000 --> 00:08:27.199 max I see most others doing right now but maybe I'll give it a little bit more 00:08:25.599 --> 00:08:31.599 and maybe I'll try increasing the bus speed rather than the multiplier to see 00:08:29.240 --> 00:08:37.719 how much closer we can get to that 4.8 GHz Mark or even the magic 5 GHz who 00:08:35.039 --> 00:08:40.760 knows well I accidentally oh this looks like cool and quiet's on but I'll just 00:08:39.120 --> 00:08:44.440 move this around to generate some CPU load there you go I accidentally dialed 00:08:42.560 --> 00:08:50.839 up the bus speed faster than I had intended to and we ended up at 4.95 GHz 00:08:48.640 --> 00:08:55.040 and it booted into Windows miraculously so uh we did run into a bit of a a bit 00:08:53.720 --> 00:09:00.279 of a hiccup where increasing the multiplier wasn't getting me the stability I needed but increasing the 00:08:58.800 --> 00:09:04.519 bus speed sort of did but I mean I am not 00:09:02.399 --> 00:09:11.880 expecting this to have any manner of stability in Prime 9 I expected it to 00:09:07.920 --> 00:09:15.279 Crash by now and it hasn't so look at 00:09:11.880 --> 00:09:17.120 that we are up near the 5 gigahertz Mark 00:09:15.279 --> 00:09:21.040 let's see if we can get there and let's find out how stable it is I said I 00:09:19.519 --> 00:09:26.760 wasn't going to do it but I did have to give it some more voltage to get into 00:09:23.680 --> 00:09:28.360 Windows at 5 GHz so here you go we are 00:09:26.760 --> 00:09:33.200 at 5 GHz it's 1.4 00:09:29.959 --> 00:09:35.360 75 in the BIOS right now so let's see if 00:09:33.200 --> 00:09:40.399 we have any Prime stability whatsoever I really doubt it but still fun to see a 5 00:09:37.360 --> 00:09:42.399 gz suicide shot so there you have it in 00:09:40.399 --> 00:09:47.519 terms of what we were actually able to achieve with any stability I'd say 4.8 00:09:44.680 --> 00:09:51.560 GHz is very doable um thank you for checking out my little walkthrough on 00:09:49.160 --> 00:09:54.880 overclocking the bulldozer FX 8150 don't forget to subscribe to L's Tech tips 00:09:53.000 --> 00:09:58.600 from unboxings reviews and other computer videos