Thanks again for your time and patience LOST_N_BIOS, and I do hope sonoboyster will also succeed in this project. So keep on trying, I managed to mod my Bios I'm sure you can also ! Now the question is, will I see any significant difference in real life on a O/S disk between my stock 128 GB Samsung CM851 SSD (550/130 MB seq R/W), the 860 Evo (550/525) and a 970 Evo Plus (1600/1600) ? I think I will give it a try, but I'm not very confident. And the 970 could probably be reused in a future configuration, but by then PCIe 4.0 will be the standard, and the SSD will be outdated ! Life is not simple for geeksįinally, the situation is different for you sonoboyster, as I understand you already have the WD Black NMVe 256 GB drive, which will in any case be an improvement in terms of storage capacity. On the other hand, the last SATA M.2 by Samsung (860 Evo) tops at 500/550 MB/s due to SATA 3 limitations. So it's clearly time for PCIe 4.0 to be implemented on chipsets and CPUs (AMD X570, Ryzen 3rd gen were announced for "mid-2019" during CES 2019, nothing from Intel afaik) to support the first next-gen PCIe 4.0 SSDs announced well above the sequential R/W 4 GB/s barrier.īack to my initial subject, my laptop is too old for the upgrade to be fully efficient, only a small half of the SSD speed capacity would be reached. You will notice btw that the latest SSDs are close to the theoritical PCIe 3.0 max data rate. for those who own a version with 128GB SSD and 1 TB HDD. (see ).įor other "old" Asus Zenbook owners, that means the UX501 VW model (opposed to the UX501 JW) with its HM170 Skylake chipset would be a far better candidate for an upgrade to a recent NVMe SSD, esp. It is sadly confirmed by user benchmarks where a Samsung SM951 NVMe SSD on a M.2 PCIe 2.0 x4 port is capped at circa 1600 MB/s R/W, where recent drives reach 3600 MB/s in a PCIe 3.0 port x4. PCIe 3.0 has a data rate per lane of 1 GB/s, minus 1,6% overhead (128b/130b encoding), ie 985 MB/s * 4 = 3.94 GB/s effective data rate on a x4 port. ![]() With PCIe 2.0, the data rate per lane is 500 MB/s, minus a 20% overhead due to 8b/10b encoding. On a x4 port the best effective data rate is thus around 1,6 GB/s. The HM87 only supports PCIe 2.0, the first Intel chipsets supporting PCIe 3.0 are the Skylake ones of the 100 Series, launched two years after the 8 Series. Now I can order the Samsung 970 Evo Plus for my laptop, as soon as it is more widely available and reasonably priced in France.Įvil is in the detail ! Before spending 250€ for a high-end component, I double-checked the PCIe speed of the M.2 port on the laptop, and that's bad news. Well, BIOS modding is not an exact science for such a noob like me! Obviously FPT is not the most reliable tool for this platform, or I did not use the good version, which is weird as I got the Intel package matching my ME version. I dumped again and the NVMe DXE module is there ! I flashed the modded BIOS with AFUWIN圆4, no special option like /GAN, no error about write protection ![]() I inserted the NVMe DXE module with UEFItool I decided to redo the whole thing from start, based on AFU 3.0.6 : Lenovo Ideadpad N581 Whitelist.Īnd finally I think I can proudly report a success ASUS TUF Gaming FX705DU BIOS U.Īdd Broadwell support to Fujitsu D3348B1. Lenovo Flex 2-15 (A0CNxxWW) Wh.Ĭorrupt Lenovo Ideapad 3-15IGL05 Bios wi.
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