3700+ OC Issues

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I am running an ASUS A8N-SLI Deluxe with a 3700+ @ 2.2 and Corsair XMS 2*1gb kits, (4*512) @ 2-3-3-6, all with a Silverstone ST56ZF PSU. Cooling is very well with a setup from Dangerden Liquid cooling: TDX 3/8", Maze4 nForce4 3/8", 2*80mm Rads, CSP-MAG pump. Idling at 27cpu and 25mobo.

The biggest issue is that I cannot take my cpu past 2.3GHz and have my ram stable. I know I can easily take this chip past 2.6 and I am shooting for 2.8 with new cooling. What I get is errors when running memtest86.

Somehow when I overclock my CPU it raises my RAM freqs :?:
I have tried lowering timings, increasing voltage to CPU, changing from 2T to 1T (wouldn't boot), changed ram from CL2 to CL3 (wouldn't boot, had to clear CMOS). My ram is running at 2.75v and cpu at 1.4 (stock). Everything is stable at stock but as soon as I get past 2.3GHz ram fails and I can't boot sometimes.

Any suggestions? :oops:
 

Forsaken1

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Does your memory pass prime/mem test at stock settings?If so try the following.

Set your ram at a cl of 2.5.Put your memory on a divider.Try 183 or 166.Lower your ht link to 3x or 4x.
 

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Everything passes at stock Ran memtest86 for 2 full passes with no errors ran Prime95 for 10 mins, no errors. SuperPi 32M, no errors.

When I first installed the ram the timings were not correct so I had to manually set the timings to 2-3-3-6@2.75

How would I put my ram on a divider? You mean actually lower the frequency to 333?
 

trinitron64

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4 sticks of ram :roll:

Try doing it with only 2 sticks in dual channel mode.

Your Sandy should be able to go to 2.53 AT LEAST.

I keep mine at 2.53 on air... memory sits at 230 @ 2.5 3 3 7 1T
 

advcomp2019

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I got my computer to overclock with 4 sticks.

My Computer:
AMD Athlon64 3700+ w/ Zalman 7700 @ stock voltage @ 2.53GHz
Abit AN8 Ultra
2 pair of Corsair XMS 1GB (2 x 512MB) @ 2.5-3-3-6 DDR460
Sapphire X1600XT w/ stock cooler
Sound Blaster X-Fi sound card
Antec TruePower 2 550W
Samsung DVD+/-RW w/ Lightscribe
Lite-On DVD-ROM
2 200GB and 250GB hard drives
Cooler Master Centurion 5 w/ an added fan where the funnel was at
 

randomizer

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I am running an ASUS A8N-SLI Deluxe with a 3700+ @ 2.2 and Corsair XMS 2*1gb kits, (4*512) @ 2-3-3-6, all with a Silverstone ST56ZF PSU. Cooling is very well with a setup from Dangerden Liquid cooling: TDX 3/8", Maze4 nForce4 3/8", 2*80mm Rads, CSP-MAG pump. Idling at 27cpu and 25mobo.

The biggest issue is that I cannot take my cpu past 2.3GHz and have my ram stable. I know I can easily take this chip past 2.6 and I am shooting for 2.8 with new cooling. What I get is errors when running memtest86.

Somehow when I overclock my CPU it raises my RAM freqs :?:
I have tried lowering timings, increasing voltage to CPU, changing from 2T to 1T (wouldn't boot), changed ram from CL2 to CL3 (wouldn't boot, had to clear CMOS). My ram is running at 2.75v and cpu at 1.4 (stock). Everything is stable at stock but as soon as I get past 2.3GHz ram fails and I can't boot sometimes.

Any suggestions? :oops:
RAM frequency is calculated using the cpu speed * the memory divider, so if you increase your cpu speed your going to increase your ram speed as well. Going from 2T to 1T actually increases strain on memory controller and 1T doesnt work on more than 2 sticks anyway (which is why it wont boot). Definitely try using a memory divider (maybe 2/3 or 333mhz whatever your bios says, decrease to 266 if you go past 2.7ghz) You shouldnt lower your HTT multi yet or it will run too low and not boot.
 

randomizer

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Ya, lower it to 2.5 before you lower the RAM to see if that's the problem. If it is not, then go ahead and lower the RAM.
Remember that lowering timings increases stress on the ram and memory controller, it doesnt decrease it. Dont go higher than CAS 3 since some memory sticks cant go higher and plus your hampering performance if you do. Just set it at 2.5 for good performance/stability.
 

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I tried leaving the ram at DDR400 and putting CL2 to 2.5 and still could not get past 2.3GHz. I put it on a divider and ran th ram at DDR333 and OCed until it went back to DDR400 which had my CPU at 2.8, everything stable with ram back at ddr400 w/ 2.5-3-3-6 timing. I turned everything off and went to bed as it was near 4am. This morning when I tried to boot into windows I got nothing.. Windows just wouldn't boot. What am I missing do I need to increase my cpu voltage by a large ammount? Or is 2.8 just too high? I have suffecient cooling too.
 

sirheck

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i have been able to get my 3700 to 2730mhz with 2 512 xms
stock vlts httx5 mutiplier at x11 and timmings at 3.3.3.8

i have 2 more sticks of the same ram but could only get 2630mhz
with them it forces 2t timing with 4 of them

i have the asus sli deluxe and a arctic freezer pro cooler.

the onlything i did was lock the multiplier and set the memory dividers

hope this helps
 

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i have been able to get my 3700 to 2730mhz with 2 512 xms
stock vlts httx5 mutiplier at x11 and timmings at 3.3.3.8

i have 2 more sticks of the same ram but could only get 2630mhz
with them it forces 2t timing with 4 of them

i have the asus sli deluxe and a arctic freezer pro cooler.

the onlything i did was lock the multiplier and set the memory dividers

hope this helps

I can't get a boot when I put the timings at CL3. I set the memory divider last night and ran the ram at 333 and OCed until they were back at 400@2.5-3-3-6. And I ended up with the CPU at 2.8GHz... But no boot
 

Dissolved

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Well I think the issue of not booting was vcore being too low. I left it at plain 1.4v I had run it at 2.6GHz @ 1.4v before but wasn't stable. So I think that may be why it wasn't booting. It would get to where windows would have to boot into safe mode, but then would never execute. Which is why I am thinking the core needs more juice.
 

sirheck

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you really shouldnt have to up the vlts on your cpu or memory
in order to get 2.3,2.4or2.6 overclock.

not all cpus oc the same but you should be able to get 2.4 with no problem
it seems like you have covered most of normal stuff.

sorry man i would have to actually be at your compuetr
to be of any more help. :cry: