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 Posted: Tue, 23rd Nov 2010 19:03 Post subject: sIn, pwerelds, slizza, moose, rally up I need your help! |
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Ok so been fighting this overclock for about 16 hours now.
My system was stable at 3.9ghz (4.0 just won't happen on my cooler).
When to overclock my northbridge and got it up to 2.8ghz stable, but I had to move down to 3.8 to use less voltage for less heat since the cpu-nb is on the cpu. so adding voltage to that adds heat to cpu.
So. To sum it up, 3.8ghz on the cpu and 2.8ghz on the northbridge stable.
Ran stability tests, restarted computer, ran it again just to make sure, then a 3rd time.
Then I hit the problem. Shut my computer down for the night and turned it back on the next day and no post. Reset cmos everything was fine.
got it back to my clocks, everything was gravy so I checked to see if it would cold boot again..nope.
I can clock my cpu all I want and it'll cold start but as soon as I try it with my northbridge I can't get a cold boot out of it. I even bumped it down to 2.6 to see if it would work.
AMD 965
Gigabyte 790XTA-UD4 (bios updated)
G.skill memory which is irrelevant to my problem.
Pc Power & Colling 750 quad psu (http://www.pcpower.com/power-supply/silencer-750-quad-crossfire.html)
I've heard of OC's not being able to cold boot with asus boards but it all relates to stuff not relevant to me.
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Werelds
Special Little Man
Posts: 15098
Location: 0100111001001100
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| Posted: Tue, 23rd Nov 2010 19:18 Post subject: |
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I'm not really up to speed with AMD CPU's, but judging from the info given they're similar to Lynnfield CPU's (i5-7xx, i7-8xx)? As in IMC = QPI = what used to be NB, now incorporated in the CPU?
Does clocking that higher give you noticeable boost on AMD? Because on Intel it is just as useful as taking DDR3-2000 over DDR3-1333: fun for synthetic benchmarks and stupid heavy memory intensive crap (read: PSD's at 1GB and such stupid things), but other than that, utterly pointless. On my i5-760 I've got the QPI running at its lowest ratio; funny to note though, extra IMC/QPI voltage doesn't really add any heat to the CPU on Intel, so I've got my IMC happily running at a higher voltage than the CPU :E
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| Posted: Tue, 23rd Nov 2010 19:38 Post subject: |
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May not give it a big boost in games but that's not why I'm doing such. You get a quicker feeling around multi-tasking than you do with it at stock, stuff pops up and loads faster.
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| Posted: Tue, 23rd Nov 2010 19:45 Post subject: |
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oh and pweralds yes, the IMC is on die, has been since the 939 socket i believe. It's nice because it reduces the latency lag between memory communication buuuut, bit more stress on the cpu with heat and what not.
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Werelds
Special Little Man
Posts: 15098
Location: 0100111001001100
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| Posted: Tue, 23rd Nov 2010 20:18 Post subject: |
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Yeah so same as with Lynnfield then. Have you tried overclocking JUST the IMC? Find the limit for that separately first, and then see where you hit the wall. Most hardware has a point where the required voltage just jumps too much to be worth it. What's the stock NB speed btw?
Oh and it may have been on die since 939, I haven't owned enough AMD systems to know that 
Last two in the last decade were the overclocking monster I found in my Athlon XP 2000+ and an Athlon64...something I used for my HTPC a few years ago.
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Slizza
Posts: 2345
Location: Bulgaria
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| Posted: Tue, 23rd Nov 2010 20:38 Post subject: |
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I don't know what you should do here. soz.
Corsair 750D :: 750W DPS-G:: Asus x370 PRO :: R7 1800X ::16gb DDR4 :: GTX 1070::525gb SSD::Coolermaster 240MM AIO::
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| Posted: Tue, 23rd Nov 2010 20:46 Post subject: |
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| pwerelds wrote: | Yeah so same as with Lynnfield then. Have you tried overclocking JUST the IMC? Find the limit for that separately first, and then see where you hit the wall. Most hardware has a point where the required voltage just jumps too much to be worth it. What's the stock NB speed btw?
Oh and it may have been on die since 939, I haven't owned enough AMD systems to know that
Last two in the last decade were the overclocking monster I found in my Athlon XP 2000+ and an Athlon64...something I used for my HTPC a few years ago. |
I'm more worried about the cpu clocks than I am the northbridge. Though I know 2800 may be my wall realistically if i were to never shut my system off lol. I couldn't get it to boot right.
However I tried a different approach. I tried going through the reference clock instead and I cold booted 2.6 just now...buuuut, I also updated my motherboard bios so I dunno if it was that too lol.
So far im at
CPU x17.0
Northbridge x11
CPU Reference 225
CPU 1.45v
CPU-NB 1.200v |
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| Posted: Tue, 23rd Nov 2010 22:02 Post subject: |
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Jeus christ. I finally got it after about 20 hours worth of work!
Dunno if it was the bios update I did last night or if it was me raising the reference clock to use lower mulitpliers but it finally god damn worked.
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| Posted: Wed, 24th Nov 2010 05:49 Post subject: |
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When something like this happens (which was quite often with my last board), I usually shut off the PSU and remove the little battery on the motherboard. Leave the battery out for a few hours and then insert it back into the board, turn on PSU and then power on.
ASUS Maximus XII Formula | Core i9 10900k @ 5.2Ghz | 32GB G.Skill DDR4 4200Mhz | EVGA RTX 3080 Ti FTW3 Ultra Hydro Copper | ASUS ROG PG35VQ
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| Posted: Wed, 24th Nov 2010 08:31 Post subject: |
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Imo, the only reason to oc your northbridge is when it is a bottleneck in oc'ing the processor. And once you start upping the voltage on the NB you have to take cooling into account. Given that the NB is located on the processor in this case, it is contributing to the cpu heating up quicker. So unless you have adequate cooling on the cpu, you might be limited both ways.
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| Posted: Wed, 24th Nov 2010 17:39 Post subject: |
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I mentioned bottleneck ussage to him and that would be the only reason to clock it. But not sure if he was being attentive  , I think he wants to see how far he can take the thing Just hope he dont break it, ive not seen him on msn list today lol..
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| Posted: Wed, 24th Nov 2010 18:55 Post subject: |
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Bottleneck or not, overclocking is where all the fun is. You get a huge satisfaction by reaching that extra 0.01Ghz. Its addicting
ASUS Maximus XII Formula | Core i9 10900k @ 5.2Ghz | 32GB G.Skill DDR4 4200Mhz | EVGA RTX 3080 Ti FTW3 Ultra Hydro Copper | ASUS ROG PG35VQ
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| Posted: Wed, 24th Nov 2010 19:34 Post subject: |
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| swingman wrote: | | Imo, the only reason to oc your northbridge is when it is a bottleneck in oc'ing the processor. And once you start upping the voltage on the NB you have to take cooling into account. Given that the NB is located on the processor in this case, it is contributing to the cpu heating up quicker. So unless you have adequate cooling on the cpu, you might be limited both ways. |
The NB is what the cpu communicates with the memory through. Faster the cpu, faster you need the gpu or you bog down and throw errors. That said windows also responds better itself with a faster NB, things feel snappier, stuff loads quicker. I notice more out of my system with a faster NB that I do a faster CPU in my case
| timechange01 wrote: | | Bottleneck or not, overclocking is where all the fun is. You get a huge satisfaction by reaching that extra 0.01Ghz. Its addicting |
exactly. This is why I only really post this kind of stuff over on overclock.net There only a few enthusiasts on here, the rest are just whiney gamers who aren't ever pleased about anything. |
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| Posted: Sat, 27th Nov 2010 23:04 Post subject: |
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| Breezer_ wrote: | | May i ask why you even want overclock NB ? |
NB overclock improves ram benchmarks by a lot
ASUS Maximus XII Formula | Core i9 10900k @ 5.2Ghz | 32GB G.Skill DDR4 4200Mhz | EVGA RTX 3080 Ti FTW3 Ultra Hydro Copper | ASUS ROG PG35VQ |
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| Posted: Sat, 27th Nov 2010 23:29 Post subject: |
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| timechange01 wrote: | | Breezer_ wrote: | | May i ask why you even want overclock NB ? |
NB overclock improves ram benchmarks by a lot |
spend less time benchmarking and more time gaming |
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| Posted: Sun, 28th Nov 2010 00:34 Post subject: |
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| moosenoodles wrote: | | timechange01 wrote: | | Breezer_ wrote: | | May i ask why you even want overclock NB ? |
NB overclock improves ram benchmarks by a lot |
spend less time benchmarking and more time gaming |
Lol I finally decided to order a permanent video card for myself (not going to sell it). No more of this 8800GT bs lol. Gonna start gaming for real next week after it arrives
ASUS Maximus XII Formula | Core i9 10900k @ 5.2Ghz | 32GB G.Skill DDR4 4200Mhz | EVGA RTX 3080 Ti FTW3 Ultra Hydro Copper | ASUS ROG PG35VQ |
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