- Joined
- Mar 7, 2008
As subject really.
Test system:
MSI Gaming Pro, bios 1.8
i5-6600k @ 3.5 GHz (for the purposes of this test, I'm only pushing ram and don't care what the CPU does) with Hyper 212 Evo cooler
ram: Corsair Vengeance CMK8GX4M2B3000C15 2x4GB - single rank, Thaiphoon burner isn't able to report what chips it uses
XMP timings are 3000 15-17-17-35...
First step, how high can I go? I turned on XMP and started turning up the clock. 3200 no problem. 3466 ok... 3600 post but not windows boot. Looked in settings, ram was set to 1.35v but reporting 1.344. I raised it to 1.36 and I got into Windows. As the speed went up, so did the timings.
So I'm at 3600 18-21-21-42... 1.36v set. A quick Prime95 bench (4096k FFT, 4 workers) gave a 3.3% throughput increase over 3000 XMP settings. Not great given 20% clock increase, but I am running a low CPU clock at the moment which might negate the benefit.
Can I do something with the timings? 18-18-18 appeared ok. When I tried to Prime95 stability test it, it failed quickly. Not good. I tried another minor voltage bump to 1.37v with no difference. Should I have just gone higher quicker? I backed off to 3466 at same timings, still Prime95 unstable.
I went next to 3200 16-18-18-38, and that seemed ok. Back to XMP voltage, now testing 16-16-16-36 timings and it looks ok. Do I try CL15 next?...
What more could I have tried when at 3600 for stability? I haven't touched things like VCCIO/SA at all yet. Or should I try tighter timings at lower speeds?
Test system:
MSI Gaming Pro, bios 1.8
i5-6600k @ 3.5 GHz (for the purposes of this test, I'm only pushing ram and don't care what the CPU does) with Hyper 212 Evo cooler
ram: Corsair Vengeance CMK8GX4M2B3000C15 2x4GB - single rank, Thaiphoon burner isn't able to report what chips it uses
XMP timings are 3000 15-17-17-35...
First step, how high can I go? I turned on XMP and started turning up the clock. 3200 no problem. 3466 ok... 3600 post but not windows boot. Looked in settings, ram was set to 1.35v but reporting 1.344. I raised it to 1.36 and I got into Windows. As the speed went up, so did the timings.
So I'm at 3600 18-21-21-42... 1.36v set. A quick Prime95 bench (4096k FFT, 4 workers) gave a 3.3% throughput increase over 3000 XMP settings. Not great given 20% clock increase, but I am running a low CPU clock at the moment which might negate the benefit.
Can I do something with the timings? 18-18-18 appeared ok. When I tried to Prime95 stability test it, it failed quickly. Not good. I tried another minor voltage bump to 1.37v with no difference. Should I have just gone higher quicker? I backed off to 3466 at same timings, still Prime95 unstable.
I went next to 3200 16-18-18-38, and that seemed ok. Back to XMP voltage, now testing 16-16-16-36 timings and it looks ok. Do I try CL15 next?...
What more could I have tried when at 3600 for stability? I haven't touched things like VCCIO/SA at all yet. Or should I try tighter timings at lower speeds?