ground Posted March 1, 2019 Share Posted March 1, 2019 (edited) I have recently (over the past year) been binning boards and CPUs (as well as having others check their CPUs/boards) for maximum BCLK. With Setfsb, most decent Boards are comparable/not gonna be a limiting factor below 300 MHz BCLK, but bootable I ran into some issues on some of my otherwise best boards. Note that >118 PCIe only becomes necessery after ~261 MHz BCLK, so this will be irrelevant for most people. x58a-oc: max bootable 135-136, max in Setfsb ~138 (3 boards tested, comparable results) Rampage II Extreme: max bootable 118-120, max in setfsb ~138 (2 boards tested) Rampage III Extreme: max bootable 118/134, max in setfsb around 135/unknown (2 boards tested) Rampage III Formula: max bootable 118, max in setfsb currently unknown (2 boards tested) x58a-UD7 rev 1: max bootable 133, max in setfsb 135 (1 board tested) EX58-UD3R: max bootable 126, max in setfsb 127 (1 board tested, unmodded) x58 DK T3eH6: max coldbootable 115, max trainable 118, max in setfsb 119.8 (1 board tested) Testing procedure is basically upping PCIe until it no longer boots at ~1.4V or less ICH voltage (upping this to >1.5V brings 1-2 MHz, same for the related PCIe voltage) and then upping in setfsb using the highest bootable setting. All devices not needed disabled off course. If anyone has more boards to add to this list I would be glad. If there is a mod to Asus boards to up the max bootable PCIe clock that would be amazing, because for baseline BCLK they have been reliably higher then the Gigabyte Boards (both x58a-ocs were 2-3 MHz worse at ambient. On Dice I suspect that I was limited by the max bootable PCIe clock holding me back (286 Asus, 287 Gigabyte, note that the E5606 doesn't work on Gigabyte but generally seems 2-3 MHz better) Some boards appear to be able to train max PCIe or scale with ICH/ICH 1.5V Voltages, but those appear to be more of an exception. Thanks for the current state of the list goes to Jokot, Tagg, quiekmew, coldwove, Tapakah and T.Rex There is far more to x58 max BCLK, though it appears to mostly involve binning hundreds of CPUs. Edited June 21, 2019 by ground1556 4 2 Quote Link to comment Share on other sites More sharing options...
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