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[OC log] (\/)0n0L17(-) II
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06-12-2007 9:53pm#1Ok well I finally got my RAM replaced from HWV. Funny thing is they didn't return any of my emails for 3 weeks then they sent my out a kit of RAM thats actually better than the one I sent them?
I used to have a 4GB kit of Mushkin HP2-6400, they've sent me out a 4GB kit of XP2-6400. Basically the same but with tighter timings.
So I thought I wouldn't be stupid like last time and just start ramping up voltages and clocks and seeing if they work, i'm going to try and OC this rig methodically and see what my results are. My rig is a fairly common high/mid end machine so hopefully someone will find this usefull.
The rig i'm overclocking is:
(\/)0n0L17(-) II
CPU: QX6700 w/ Tuniq Tower lapped
RAM:4GB Mushkin XP2-6400 @ 4-4-4-12 2T
Mobo: eVGA 680i-A1
GPU: eVGA 8800 GTX @ 620/1100
HDD1: 2x320GB WD SE16 RAID0
HDD2: 500GB Samsung Spinpoint
Soundcard: X-FI Fatal1ty
PSU: OCZ 700w GX
Optical: SATA DVD-ROM 18x
Case: P180b
Here is my process for overclocking. I'll be leaving the FSB unlinked for this
1: Find the limits of the RAM:
This involves setting the timings to their rated settings and stepping up the Mhz of the FSB 10 at a time until I fail memtest86 before 8 hours. Once I fail i'll up the voltages and continue. I'll only be going up as far as 2.0v
2: Find the limits of the CPU:
This involves loosening the RAM timings and dropping the RAM clocks down, then uping the CPU's FSB 10Mhz at a time and testing for 8 hours in OCCT. Once it fails i'll up the voltages and test again, i'll do this up as far as 1.4v
3: Find the best balance between RAM and CPU:
This area is always fiddly, i'll try testing the RAM and CPU at their limits together and see if i'm stable. If not i'll increase the SPP, MCP, FSB and SPP<->MCP volts and retest. If I can't get it stable i'll drop both the cpu and ram clocks by 10mhz each until i'm stable.
4: As a final test i'll run an 8hour run of rthdribl (or maybe the crysis benchmark) and OCCT to make sure everything is stable including my GPU overclocks.
Here are some screenshots of the BIOS, feel free to give me advice on settings which are important and onces I should ignore.
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:mad: ok a weird thing is happening now, I set the RAM FSB to 820Mhz and ran memtest86, it passed 8 hours BUT... I don't think my FSB settings are being applied? CPU-Z and Everest are still picking up my RAM FSB as only 800Mhz?
So I set the Memory Clock Mode to "linked", set the memory ratio to 1:1 and dropped the FSB to 820. I then rebooted and in post I now get "System has entered safe mode"... wth is going on???
Anyone any ideas?
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Ah only just seen this now. And i was about to blame ntune. Had the exact same problem myself. Use riva tuner, atleast you can overclock the shaders too now
Yeah just got the latest version. Luckily there are some released signed drivers for it so no need to turn driver chechking off when rebooting.
Having some problems now with the RAM. Its failing after 7 hours at 854Mhz
I've lowered the timings a bit to see if I can get the clocks higher, although I'd be surprised if I can hit 900Mhz on this kit at 2.0v. I'd go to 2.1v but I haven't tracked down what killed my last set and I don't really want to kill this set right before the xmas holidays :rolleyes:
CPU Multiplier: 10
FSB – Memory Clock Mode: Unlinked
CPU FSB Mhz: 1066
RAM FSB Mhz: 854
FSB Memory Ratio: Auto
Timings
TCL: 4
TRCD: 4
TRP: 4
TRAS: 12
CMD: 2
TRRD: 3
TRC: 24
TWR: 5
TWTR: 14
TREF: Auto
Volts
CPU Core: 1.29
CPU FSB: 1.2
Memory: 2
Nforce SPP: 1.25
Nforce MCP: 1.5
HT nForce SPP <-> MCP: 1.2
Time Ran (hrs): 7.2
Memtest86: FAIL0 -
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Ok getting a REALLY weird issue with overclocking the RAM (although nobody will probably read this :rolleyes:) My performance is DROPPING to my INCREASES in FSB (using EVEREST to bench)??? But the sticks are still 100% stable after 8 hours of memtest86???
i.e.
@ 427Mhz -
* mem read: 7600 MB/s
* mem write: 4830 MB/s
* mem copy: 5368 MB/s
@ 444Mhz -
* mem read: 7411 MB/s
* mem write: 4828 MB/s
* mem copy: 5344 MB/s
@ 457Mhz -
* mem read: 7358 MB/s
* mem write: 4852 MB/s
* mem copy: 5400 MB/s
Very very odd??? anyone any ideas, i've never seen this issue before when overclocking.
CPU Multiplier: 10
FSB – Memory Clock Mode: Unlinked
CPU FSB Mhz: 1066
RAM FSB Mhz: 915
FSB Memory Ratio: Auto
Timings
TCL: 5
TRCD: 5
TRP: 5
TRAS: 12
CMD: 2
TRRD: 3
TRC: 24
TWR: 5
TWTR: 14
TREF: Auto
Volts
CPU Core: 1.29
CPU FSB: 1.2
Memory: 2
Nforce SPP: 1.25
Nforce MCP: 1.5
HT nForce SPP <-> MCP: 1.2
Time Ran (hrs): 8.0
Memtest86: PASS0 -
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try giving it some more voltage just a small bit and see what heppens.
I don't think thats it, i've been reading around and supposedly this drop in performance happens when the northbridge strap increases from 1066 to 1333. Supposedly this happens when the FSB goes over a certain value.
Heres a graph I found on this particular problem.
CPU Multiplier: 10
FSB – Memory Clock Mode: Unlinked
CPU FSB Mhz: 1066
RAM FSB Mhz: 934
FSB Memory Ratio: Auto
Timings
TCL: 5
TRCD: 5
TRP: 5
TRAS: 12
CMD: 2
TRRD: 3
TRC: 24
TWR: 5
TWTR: 14
TREF: Auto
Volts
CPU Core: 1.29
CPU FSB: 1.2
Memory: 2
Nforce SPP: 1.25
Nforce MCP: 1.5
HT nForce SPP <-> MCP: 1.2
Time Ran (hrs): 9.0
Memtest86: PASS
EVEREST Bench results: (OMG :mad: stop going down!!!)
*mem read: 7227 MB/s
*mem write: 4827 MB/s
*mem copy: 5363 MB/s0 -
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Ok I give up it seems some other setting on the motherboard that isn't visable in the BIOS is fighting against me and defeating whatever overclock I give these sticks. I think the reason i'm not failing memtest86 at these speeds is that they are still running way below their rated bandwidth. At DDR1000 i'm still running under the bandwidth I was at at DDR850.
I'm going to cut my losses and start testing these sticks linked and with the divider set to sync mode (i.e. DDR for RAM, QDR for CPU)
Also nibble, your comment makes no sense to me. Tight timings will give me more bandwidth so i'm not sacrificing one for the other. If you mean i'll get more bandwidth from a higher clock I think i've already proved that with my board (at least with the clocked mode set to unlinked) this isn't so.
Also why do people keep telling me to up my volts??? Volts are only going to affect stability, as my sticks are stable I don't need to give them more volts yet. Upping the voltages needlessly is just going to create more heat.
@ 500Mhz
*mem read: 7356 MB/s
*mem write: 4834 MB/s
*mem copy: 5440 MB/s
CPU Multiplier: 10
FSB – Memory Clock Mode: Unlinked
CPU FSB Mhz: 1066
RAM FSB Mhz: 1000
FSB Memory Ratio: Auto
Timings
TCL: 5
TRCD: 5
TRP: 5
TRAS: 12
CMD: 2
TRRD: 3
TRC: 24
TWR: 5
TWTR: 14
TREF: Auto
Volts
CPU Core: 1.29
CPU FSB: 1.2
Memory: 2.0
Nforce SPP: 1.25
Nforce MCP: 1.5
HT nForce SPP <-> MCP: 1.2
Time Ran (hrs): 11.2
Memtest86: PASS0 -
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For a quick memory test, run a 15x loop of test 5 & 10x of test 6, will take about 1.5hrs. These are the most intensive tests that will produce the most fails quickly. Ya must have great patience running them all night
Have ya tries 2.2V with the tighter timings? They're d9 chips & do actually need it & can cope with it0 -
PogMoThoin wrote: »For a quick memory test, run a 15x loop of test 5 & 10x of test 6, will take about 1.5hrs. These are the most intensive tests that will produce the most fails quickly. Ya must have great patience running them all night
Have ya tries 2.2V with the tighter timings? They're d9 chips & do actually need it & can cope with it
i'm in no rush, i'd rather get it right then end up breaking them. I run the testing overnight, and then again when i'm in work, so it really isn't eating into my time at all. Plus it would only bother me if I needed the performance for some game i'm playing which I don't
Also, I've found the failing is happening in test 4
I'm going to have to rethink how i'm going to overclock this board as you can't really ever seperate the ram from the cpu. The strap changes affect both of them, plus the 680i boards suffer from having FSB holes where the system just won't boot at one clock, yet a higher clock will. Its the oddest board i've ever had to overclock on.
Plus for some reason, my system enters safe mode when I enable linked mode with a divider of 1:1... it really does not like it, i've tried a few different clock settings and always the same.0 -
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PogMoThoin wrote: »Told ya
Have a try at 4-4-3-10 @ 2.2v. Or use memset & test with orthos.
well it runs stock 4-4-4-12 @ 1.9v, it actually runs stable at 4-4-3-12 @ 2.05v but i'm sick of voltage being an issue so i've just upped to 2.2v as I ran memtest overnight at this voltage and I wasn't getting any errors.
The next timings I'll be trying are:
4-4-3-10
4-3-3-10
4-3-3-9
then if i'm lucky 1T, but I'm not holding my breath for that as there isn't many 4GB kits that can handle 1T.0 -
CPU Multiplier: 6
FSB – Memory Clock Mode: linked
CPU FSB Mhz: 1600
RAM FSB Mhz: 800
FSB Memory Ratio: Sync mode
Timings
TCL: 4
TRCD: 4
TRP: 3
TRAS: 10
CMD: 2
TRRD: 3
TRC: 24
TWR: 5
TWTR: 14
TREF: Auto
Volts
CPU Core: 1.29
CPU FSB: 1.2
Memory: 2.2
Nforce SPP: 1.25
Nforce MCP: 1.5
HT nForce SPP <-> MCP: 1.2
Time Ran (hrs): 9.5
Memtest86: PASS
Ok i'm really starting to hate this motherboard :mad: I passed at these settings last night. So I wanted to see if having the CPU divider down at 6 could be loosening the latencies. So I tried these settings
CPU Multiplier: 8
FSB – Memory Clock Mode: linked
CPU FSB Mhz: 1200
RAM FSB Mhz: 800
FSB Memory Ratio: 3:2
Wouldn't BOOT, after a few automatic retries the BIOS went into safemode. So I tried this
CPU Multiplier: 10
FSB – Memory Clock Mode: linked
CPU FSB Mhz: 800
RAM FSB Mhz: 800
FSB Memory Ratio: 1:1
Wouldn't BOOT again... WHY??? I have no idea. Yet running
CPU Multiplier: 10
FSB – Memory Clock Mode: linked
CPU FSB Mhz: 1000
RAM FSB Mhz: 800
FSB Memory Ratio: 5:4
boots just fine??? I can't get my head around it, how a CPU FSB of 800 is problem, 1000 isn't a problem and 1200 is a problem 0 -
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Ok have a look at these EVEREST screens (who am I talking to? :rolleyes:)
They show that even at timings 4-3-3-10 i'm seeing a VERY small performance increase over 4-4-4-12. Whats also weird is that 4-4-4-12 @ 419Mhz is actually better.
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Ok I couldn't get 4-3-3-9 1T stable at 2.2v. So I wanted to see what kind of performance increase just changing the CR would have. I remember on my AMD board the CR gives a bit of a jump in performance at 1T
CPU Multiplier: 10
FSB – Memory Clock Mode: unlinked
CPU FSB Mhz: 1066
RAM FSB Mhz: 800
FSB Memory Ratio: Auto
Timings
TCL: 4
TRCD: 4
TRP: 4
TRAS: 12
CMD: 1
TRRD: 3
TRC: 24
TWR: 5
TWTR: 14
TREF: Auto
Volts
CPU Core: 1.3
CPU FSB: 1.2
Memory: 2.2
Nforce SPP: 1.25
Nforce MCP: 1.5
HT nForce SPP <-> MCP: 1.2
Time Ran (hrs): 8.2
Memtest86: PASS
Results:
Thats a pretty nice jump in performance. I'm going to see if I can lower any of the other timings seperately to get the maximum stable performance.
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CPU Multiplier: 10
FSB – Memory Clock Mode: unlinked
CPU FSB Mhz: 1066
RAM FSB Mhz: 800
FSB Memory Ratio: Auto
Timings
TCL: 4
TRCD: 3
TRP: 3
TRAS: 9
CMD: 2
TRRD: 3
TRC: 24
TWR: 5
TWTR: 14
TREF: Auto
Volts
CPU Core: 1.3
CPU FSB: 1.2
Memory: 2.2
Nforce SPP: 1.25
Nforce MCP: 1.5
HT nForce SPP <-> MCP: 1.2
Time Ran (hrs): 8.0
Memtest86: PASS
hmm... looks like i'm better off with 1T :rolleyes:
Right, i'm done with this RAM. I wanted to get it above 8000MB/s read but that's not going to happen unless I overclock it from within windows which will force the strap not to change. But i'm not prepared to take that risk.
Onwards and upwards. I'm going to start testing the CPU now.0 -
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PogMoThoin wrote: »I don't try to tighten timings, i loosen them & push for higher fsb, more gains that way. But i didn't gain much on these ocz sticks, hopefully new gskills (in my sig) i'll have when my mam returns from Usa will oc a bit better.
I think I agree with you. I tried testing 4-4-4-9 CR1 last night and i'm getting a worse score than at 4-4-4-12 CR1. I asked about this on the Mushkin forums and they said this is normal as tightening the timings also has the affect of loosening the NB latencies (which can't be controlled)
It seems a bit misleading for RAM suppliers to charge more for tighter timings when they give near to no increase in performance.
My other problem is that I can't increase the FSB either, as, due to strap changes, it also has the affect of reducing performance rather than increasing it.
I'll give overclocking the CPU a shot now and hope for the best. My only hope is that because my CPU has an unlocked multiplier I won't have to increase the FSB too much.0 -
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TheThreeDegrees wrote: »Nice you can change your multiplier.I dont seem to have that option.
See youve loosened your timings also.
Thanks for the link on the other thread.
Yeah, any Intel CPU with an "X" in the name usually means it has an unlocked multiplier. (i.e. yours is a Q6600 so it doesn't, mines a QX6700) Like Pog said, it doesn't mean it can't be lowered though.
Here are some bench screens, from that link I gave you with bench programs I found this german PI program for benching all 4 cores called MaxPI Multicore
@ 2667Mhz
@ 3100Mhz
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PogMoThoin wrote: »http://extremeoverclock.org/category/download/tweak-overclock/stressing/
Its version 25.4 thats multicore, not sure if its out of beta stage but it works fine. I used occt for a quick 30min test while pushing for max fsb & prime 95 for an overnight torture test.
cheers... i'll give it a shot when I get home (working xmas eve)
Something i've noticed with my temps, since putting the 8800GTX into my P180 i've found my CPU temps have gone up from 28'c idle to 40'c after having the machine on for a few hours. I put this down to the fact that the 8800GTX is so long it basically partitions the main compartment in 2, stopping air from the middle intake fan getting to the RAM and CPU. Theres also the added heat being spewed out by the 8800GTX. I think this is what killed my last set of RAM. I had had the PC on for a few days so I guess the heat just built up on the RAM and eventually killed them. I have no way of getting an air intake around the RAM so i'm just going to leave the side off, the noise levels are also a lot lower as I don't have to have all my fans running at high RPMs to get the same level of cooling. I have a can-o-air to deal with the inevitable dust that will be caused by this.0 -
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TheThreeDegrees wrote: »would you not up the voltage on the CPU?
How high can you go anyways?
I did, I said i was going to increase the volts to 1.35v, which worked out good i'm now stable at 3.2Ghz
CPU Multiplier: 12
FSB – Memory Clock Mode: linked
CPU FSB Mhz: 1066
RAM FSB Mhz: ~<800
FSB Memory Ratio: 4:3
Timings
TCL: 5
TRCD: 5
TRP: 5
TRAS: 15
CMD: 2
TRRD: 3
TRC: 24
TWR: 5
TWTR: 14
TREF: Auto
Volts
CPU Core: 1.35
CPU FSB: 1.2
Memory: 2.2
Nforce SPP: 1.25
Nforce MCP: 1.5
HT nForce SPP <-> MCP: 1.2
Time Ran (hrs): 8
OCCT: PASS
EDIT:
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