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Bottle Necking Issue
- Thread starter edwarhys
- Start date
Sabertooth 990FX.
23x
The jump in volts from 22.5 to 23x is from 1.41v to 1.46v, a full 50mv
I did try it with the HT Bus, 19x 245Mhz (i think it was) same thing. freeze.
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I'm going to try again when i get some lower voltage 2400Mhz RAM, these old 1600Mhz 1.65v sticks are pretty much junk and i have a felling the Motherboard nor the CPU like them.
But aside from that its a little strange, its as if something is deciding 4.6ghz is enough and thats all your getting.
Before i put the water cooler on it; on a stress test it was fine at 75c and wouldn't go above 4.6. i figured it was too hot, with the water cooler it only just gets over 60, and still the same thing.
With the new RAM i will have more room for different HT Bus and multi combinations.
VRMs max at 69c under stress, which is nothing.
But aside from that its a little strange, its as if something is deciding 4.6ghz is enough and thats all your getting.
Before i put the water cooler on it; on a stress test it was fine at 75c and wouldn't go above 4.6. i figured it was too hot, with the water cooler it only just gets over 60, and still the same thing.
With the new RAM i will have more room for different HT Bus and multi combinations.
VRMs max at 69c under stress, which is nothing.
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Hmm it could be then. You can find my overclock settings here, CHVFZ.
http://forums.overclockers.co.uk/showthread.php?t=18557773&highlight=8320+analysis
But at no point was I ever able to manually enter the voltage for the memory without serious issues.
http://forums.overclockers.co.uk/showthread.php?t=18557773&highlight=8320+analysis
But at no point was I ever able to manually enter the voltage for the memory without serious issues.
Depends on your temperatures. DL this and run the stress test for about 30 minutes.
Your looking for no more than 65c on Package and CPU
some BIOS settings that might help
thanks for all that , running at 4.52ghz just going to do the AMD overdrive now , your amazing
Guys just after starting the test stopped
Calculation Test > Illegal sumeout
Calculation Test > Possible hardware failure
I think I fixed it , to much voltage , i can't get it stable with that info above
Calculation Test > Illegal sumeout
Calculation Test > Possible hardware failure
I think I fixed it , to much voltage , i can't get it stable with that info above
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No x 1000000000000
I had one, and tbh? my 8320 barely held stock clocks. My initial overclock of 4.2ghz failed and my CPU was throttling down to 1.7ghz.
Any kind of big BD/PD overclock requires water. You have to remember that they started life out as 2ghz Opterons and were never designed to be ran that fast. As such they get somewhat hot fast. They don't have a massive overall temp threshold like the Intels do, but they say uncle far quicker.
If you dig around I'm sure you can still find refurb H80s.
Edit. What are your actual voltages? ignore what you set in the bios... I hear that some of the Gigas have terrible Vdroop issues.
I have had to play with the vcore a little more , using the same voltages in that picture just fails , I've just added 0.25v to 1.46 and I'm now running 4.46Gz with no stability problems so far , I am 24minutes through Stability test (Max Temp 49c-50c with no under clock
Well that h60 is useless then lol
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Id like to thank everyone for the support and i will bug you all again once i get some water cooling 
ive got room for 3x120mm fans should be fun
Thanks
ALXAndy humbug LtMatt AlamoX Hope i havent missed anyone
ive got room for 3x120mm fans should be funThanks
ALXAndy humbug LtMatt AlamoX Hope i havent missed anyone
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Thanks Andy. i will keep your settings for when i get the new RAM.
Id like to thank everyone for the support and i will bug you all again once i get some water cooling
Thanks
ALXAndy humbug LtMatt AlamoX Hope i havent missed anyone
Your Welcome.
Some advice.
1. Do not manually volt your ram on AM3. Especially with an Asus board, they don't like it. Both my CHVFZ and M5A97 R2.0 absolutely hate it when you touch ram voltage. Both are completely unstable and unable to even maintain stock clocks.
2. Be very careful about which cooler you decide to use. Remember; the rule here is that what usually works on Intel doesn't work the same way on AMD. There are certain coolers out there that are supposedly brilliant, yet, when put on an AM3 they just crumble. This is because the AM3 die is larger than the Intel and the cores are put into the far corners. That Zalman wouldn't be much use.
3. Whenever possible, go water. That means H80-H100 if you can pick one up cheap, or, at the very worst a second hand H70. AM3 chips really need water if you want to chase big clocks. I suggest one of the three I listed if you want to chase 4.4ghz+. I am running a Scythe Ninja on my 4.4ghz 8320 (board VRM limited) and it just about holds the temps.
4. Ignore the max temps of the chip. Some people say 63c, others say 72c, I say - basically the chip will let you know itself when it is too hot (it'll simply lock up your PC). You can't possibly damage it because it has a heat throttle/shutdown. It's the same with Intel CPUs, GPUs, anything else. I was told never to go over 63c with my 8320, well I disagree, because I can hold a 5ghz overclock with a max package temp of 73c in Asus Realbench R2.0.
5. Try not to use synthetics to test an AMD. Whilst it may work well on Intel I can run Prime 95 for over an hour with no crashes on my 8320 @ 5.2ghz, yet, run Asus Realbench and as soon as I hit the multi tasking test I bomb. Realbench is great because it uses actual real life applications with which to stress your PC (Handbrake, GIMP, hi res video, etc).
I would aim for 4.4ghz. Anything over that does provide yields, but they get lower and lower as the chip begins to near 5ghz. In the end I decided on an all round clock of 4.9ghz, which hits 71c in Prime 95 and LinX* and remains stable through the Asus Realbench multi tasking tests
* I really don't advise using Prime, but, if used in moderation (IE five minute bursts) it's a good indicator of what sort of temps your CPU will allow you to hit. That's all I use it for though, as like I said it does not simulate real world conditions like Asus Realbench does
Good luck !
H100i
or H100 ? 240mm new or refurb
H80i ? 120mm new or refurb
You see here where ist says 'CPU Bus Frequency' set it to 200 if its not already. then go to 'Memory Frequency', that needs to be set to 1333Mhz.
H100i = H100 with software. They're the same pump (Coolit). H80 is Coolit (same pump, big square bugger !) and H70 is Asetek.
It's not so much the pump, it's the rad size you need to be concerned with. You want either a double thick 120mm, or, double width 240mm single. The issue with AIO is the overall volume of coolant. The more you have, generally the better they perform.
Go with whatever is the cheapest. I am using two 240mm H100s that I got refurb (one was £40 or so the other free from a mate) and both have performed admirably.
The issue with smaller rads is that the coolant heats up fast, and there's simply not enough of it to work with the rad. This is why I strongly advise against coolers like the H60 as they are not worth the materials they're made out of. All looks, nothing else. They simply don't have enough volume.
And remember - bus. Bus bus bus. Multi alone won't really get you anywhere. The devil is in the detail, and, will be a combination of a reasonable multi and a high FSB.
Edwarhys. You're very welcome. I still wouldn't recommend the Zalman though. You're only running a hex, and tbh? any one with a 8 phase motherboard should really be running a FX 8. The 8320 is only £100 or so at the moment.
It's the 8320 you want. Mine at 5ghz is the same as a 3930k/39x0 X at stock. IE - with a full CPU test such as Cinebench I can score 800 points. The 3970x at stock scores 800 points, and 1200 when overclocked. However, that's a £900+ Intel chip and for £100 you can get an AMD that offers 2/3 the performance for 1/4 the price of something like the 3930k.
Before the Intel lot jump in....
That's all 8 cores in use. When apps and or games are threaded less that changes, however, I am absolutely adamant that core use will sky rocket soon. Core use in desktops (IE not professional workstations and or serverrs) is dictated by Intel as they have the highest IPC. Soon they are going to release their first ever desktop 8 core CPU, which will then dictate to game devs how many cores to use.
Windows 7 only used 4, because the I5s were where it was at for leading performance. Windows 8 though uses far more, as people with 4+ core CPUs are now finding out. It won't be long before games use 8 either, because the new consoles (both) have 8.
So if you want to turbo charge your rig and turn it into a nice powerful system buy yourself an 8320. The IPC is 15% higher than Bulldozer too, so it'll demolish your 6100.
The Fx-6100 and the Ram is the only thing i haven't upgrade i bought the machine off a mate with theses specs:
WAS: - NOW:
Fx-6100 3.3Ghz -FX-6100 4.46Ghz
GT440 1.5Gb - MSI R9 270Xfire
Gigabyte M68MT-S2 - 990FXA-UD5
1TB seagate -+1TB SSHD
DVD RW -Blu-Ray (was cheap)
21.5" monitor - +22"monitor
Galaxy 3 case - XpredatorX3 red/black case
500w Unbranded - 650w PSU In-win GreenMe
Same Ram Dual-Channel DDR3 1333mhz Patriot Signature
once i get a new CPU i can rebuild the old system and maybe get my little brother into pc gaming or give it to someone in the family that thinks duel core is still the in thing
Dude honestly if you're running a 990FXA UD5 and you don't have an 8 core FX in it you need slapping with a wet fish 
Seriously, sort it out !
I would go for 1600mhz ram. Ram is very, very important when you start to crank on the FSB as the offset pours over into the memory. Though you can adjust the ram offset to counteract it though...
I gotta say I love overclocking on 990. It's so much more fun than my X79.
But yeah, I would get rid of that 6100 and get an FX 8320 in there. Don't go for a higher model, they're all a rip off. AMD are now all out binning their chips for 5ghz (they recently released a lower priced 9590 or whatever they're called) and chips that won't do 5ghz on the low volts they want them on are repackaged as 8350s and 8320s.
Seriously, sort it out !
I would go for 1600mhz ram. Ram is very, very important when you start to crank on the FSB as the offset pours over into the memory. Though you can adjust the ram offset to counteract it though...
I gotta say I love overclocking on 990. It's so much more fun than my X79.
But yeah, I would get rid of that 6100 and get an FX 8320 in there. Don't go for a higher model, they're all a rip off. AMD are now all out binning their chips for 5ghz (they recently released a lower priced 9590 or whatever they're called) and chips that won't do 5ghz on the low volts they want them on are repackaged as 8350s and 8320s.