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DRAM Timings Overclock

post #1 of 4
Thread Starter 
I'm currently trying to overclock my system. I think I've got my i7-2600K overclocked to 4.50GHz stable but only time will tell (Prime95 blend test is currently running). I've set the following in the BIOS:

- BLCK = 100.0MHz
- CPU Ratio = 45
- DRAM Clock Speed = DDR3-1600MHz (Stock)
- DRAM Timings = 9-9-9-24-2T (Stock)
- CPU Voltage (Manual) = 1.340V
- DRAM Voltage (Manual) = 1.500V (Stock)
- Load-Line Calibration (LLC) = Extreme (100%)


My RAM is running totally on stock settings (manually set) but I'd like to know what timings I could possibly set. Anyone have the RAM I have?
If so, what settings did you use?
In either case, what timings do you recommend?
Perhaps 7-7-7-20-1T at stock voltage?
I was going to test by running Memtest86+. Thanks!
Edited by Gib007 - 10/11/11 at 6:21am
    
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post #2 of 4
7-7-7 will most likely be out of the realm of possibility for your ram. 4gb density modules+ corsair usually means it's hynix which wont do well with tight timing like that.

Realistically speaking, with 1.65v you might be able to get cl8, maybe cl7 with the other timings being very lax.

play around with it and see what you get... you can test via memtest or you can just run super pi 32m or multiple instances of it.. it's usually quicker and will detect unstable ram very quick

good luck
Galbus
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Galbus
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post #3 of 4
Thread Starter 
Thanks for your reply!
That's a bit disappointing. My previous Corsair Dominator DDR3-1600MHz RAM also had 9-9-9-24-2T stock timings and taking those down to 7-7-7-20-1T at stock voltage was as simple as setting it in the BIOS!
The thing is that the sticks were each 2GB and it was on an AMD system...

I guess it doesn't matter, though. I never observed any difference in performance or realistic benchmarks between C9 and C7 timings when I was dealing with my other RAM. I suppose it's not worth the hassle!
    
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Intel Core i7-5820K Haswell-E Asus ROG Rampage V Extreme Intel X99 EVGA GeForce GTX 1080 FTW Corsair Vengeance Red LED 32GB (4x8GB) DDR4-300... 
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Samsung 840 500GB SSD (SATA-6Gbps) Western Digital Black 1TB 64MB Cache HDD (SATA-... Western Digital Black 4TB 64MB Cache HDD (SATA-... NZXT Kraken X52 & 2x Corsair SP120 RGB 120mm Fa... 
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Hard DriveHard DriveHard DriveCooling
Samsung 840 500GB SSD (SATA-6Gbps) Western Digital Black 1TB 64MB Cache HDD (SATA-... Western Digital Black 4TB 64MB Cache HDD (SATA-... NZXT Kraken X52 & 2x Corsair SP120 RGB 120mm Fa... 
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post #4 of 4
Quote:
Originally Posted by Gib007 View Post
Thanks for your reply!
That's a bit disappointing. My previous Corsair Dominator DDR3-1600MHz RAM also had 9-9-9-24-2T stock timings and taking those down to 7-7-7-20-1T at stock voltage was as simple as setting it in the BIOS!
The thing is that the sticks were each 2GB and it was on an AMD system...

I guess it doesn't matter, though. I never observed any difference in performance or realistic benchmarks between C9 and C7 timings when I was dealing with my other RAM. I suppose it's not worth the hassle!
you can always try and see what happens
4gb density modules do not get timings near as tight as 2gb density.

i have a 16gb kit of hynix (patriot) which can clock up to 2133 from 1600MHz with 9-11-9 timing, but even with just 2 sticks.. no way i can get cl7 on them stable
Galbus
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Galbus
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Intel Core i7-6700K 8M Skylake Quad-Core 4.0 G... ASUS ROG MAXIMUS VIII EXTREME LGA 1151 Intel Z1... 3x MSI GeForce GTX 1080 Founders Edition  2x [Trident Z] F4-3600C16D-16GTZKW 16-16-16-36... 
Hard DriveHard DriveOptical DriveOptical Drive
Plextor M8Pe AIC 1TB PCI-Express 3.0 x4 MLC Int... Plextor M8Pe AIC 1TB PCI-Express 3.0 x4 MLC Int... LG BH16NS40 Blu-ray Card Reader: Rosewill RDCR-11003 - 3.5" 74-in-1... 
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Custom Ultra cool passive heatsink Microsoft Windows 10 Pro 64-bit ViewSonic XG2703-GS Black 27" 4ms (GTG) IPS G-S... Das Keyboard 4 Professional Mechanical Keyboard 
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CORSAIR AXi Series AX1500i Digital 1500W 80 PLU... Corsair Obsidian 750D Black Aluminum / Steel AT... Logitech G900 Chaos Spectrum Logitech 
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onboard Canon i-SENSYS LBP7680Cx (5089B014) Duplex 9600... Canon imageFORMULA DR-F120 (9017B002) 600 dpi U... Brother Personal Plain Paper Fax Machine, FAX-575 
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