Max Core 2 Duo Overclocks at Default Voltage Info

pieman109 said:
I'm at 425mhz atm with a 6300 on a DS3. I tried going higher but I get freezes , blackscreens, etc, thats why I was asking about changing ram timings/voltages. :)
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Could you post the CPUz verification screen as it's the easiest way I know to check all the timing info. Also - if possible - what does the SPD page on CPUz say about your timings at PC6400/FSB=400/800MHz?
 
matt100 said:
yeah but I can check it ;)

cpu-z says 1.175 even under load, cpuid says 1.292, the bios says auto and I seem to be topping out at 3ghz????

maybe I should try harder :(
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scratch that, 3.4ghz will 1mb superpi at stock v, its obviously bedded in a bit. This is on crappy air cooling so when its under water it should be a bit happier.
 
WJA96 said:
Could you post the CPUz verification screen as it's the easiest way I know to check all the timing info. Also - if possible - what does the SPD page on CPUz say about your timings at PC6400/FSB=400/800MHz?
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Memory timings: 4-4-4-12 @ 400mhz (stock speed) at 2.1v Vdimm
cpu Vcore: 1.424 (stock), fsb 400

Mobo bios is F4

cpu-z spd says "333mhz 5-5-5-15-20" which appears to be the highest! but I'm currently running at 400mhz (DDR800)
 
pieman109 said:
Memory timings: 4-4-4-12 @ 400mhz (stock speed) at 2.1v Vdimm
cpu Vcore: 1.424 (stock), fsb 400

Mobo bios is F4

cpu-z spd says "333mhz 5-5-5-15-20" which appears to be the highest! but I'm currently running at 400mhz (DDR800)
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Then you almost certainly need to slacken off the memory timings. Try 5-5-5-15-20 and see if it boots. If it doesn't try 5-6-6-15 or 5-7-7-20 to see if it will boot. Or just use AUTO. The timings might be horrendously slack, but it will probably boot.
 
pieman109 said:
How many of these overclocks are with the memory at stock Vdimm or slightly overvolted. Also, has anyone had to slacken their memory timings at all?
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My Vdimm is at stock but for this test its only the CPU that needs to be at default everything else can be what ever. Max CPU clock on default volts
 
The Asgard said:
Will update the list shortly.

Thanks for the response. Any chance you could all supply batch numbers ( where possible ) .
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Good idea m8.

edited my post with batch number.
 
Ok, got it up to 3.150ghz (450 x 7), but ram timings are 5-5-5-20, 1;1 and performance is roughly the same as 2.8ghz with timings of 4-4-4-12 1:1, If I try to run 450 x7 with timings of 4-4-4-12, the pc won't boot and I get a message saying some file is missing or corrupted, and the pc hangs at this point. setting the ram timings back to 5-5-5-20 cures this prob.
Can someone tell me what timings to start lowering, say 5-4-4-5-12 or what, to see if I can get the timings lower at the higher speed, I'm not sure which value to lower first.
As far as I could make out, the pc freezing was down to me setting the "pci-e bus" to auto, I set this to 101mhz and I can run 3dmark all day now.
Just need to find the optimum memory timings now.
This all at stock volts btw except for the memory. :)
 
PLS UPDATE:
I have now completed the stability testing at 3300mhz

Still with stock cooler & vcore Auto.

CPU 8x412 @ 3294mhz exact.
memory 2.0v @ cas4,4,4,12 1:1


thanks
 
Update here. I tried @ 475 x7 (3325 mhz, stock vcore), mem at 950mhz at +.4 vdimm, with 5-5-5-20, and it bombed out after about 3/4 hour prime95. Trouble is I can't use a lower memory divider to get it near to stock to see if its the cpu or memory thats causing the prob. I personally think its the memory but, like I said, I can't lower the memory speed to check.
The max I can get 425 x 7 (2975mhz), with timings of 4-4-4-12 @ +.3vdimm.
Any suggestions?
Currently using the F7 bios versh.

Batch no: L627A279 (dunno what the code indicates, perhaps someone could tell me)
 
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Asrock Conroe945G-DVI
E6400 @ 8x333=2663
Stock Cooling
Stock Volts

Had to increase the PCIE Frequency to 113 to post at 333, but everything seems fine so far, could push it more, but abit unsure of increasing the pcie frequency too much.
 
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Right, given up trying to go higher, the cpu will go to 475mhz, but bombs out of prime95 after about 12mins. I think its me memory playing up 'cos I've tried loosening the timings off to even 6-6-6-15 at +.5vdimm, and I totally screwed me windows installation and had to do a reinstal.
I can bench fine at 425 x 7, 850mhz memory at 4-4-4-12, +3vdimm.
This situation seems to point this 430mhz "wall" I read about regarding "micron" memory chips, but I thought the F7 bios (which I'm using ) was supposed to cure this.
I've also tried increasing ALL the voltages in the bios by a small margin and the only one that seems to make a difference is taking the Vdimm to +.4 (makes prime95 last a bit longer.)
Can anyone shed any light on this?
 
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