Review on 💥 High-Performance Komputerbay 8GB (2X 4GB) DDR2 667MHz Memory Modules - Boost Your PC's Speed! by Daniel Drury

This purchase worked fine for me but honestly it seems to be true that "you get what you pay for" and I paid for it Cost savings from a lower price from Komputerbay, with more additional time to test, return and replace some of the DIMMs they supply compared (unknown) if I had ordered them from a higher tier supplier like Crucial. I had two (2) Lenovo X61 laptops that needed an upgrade: larger drives (from 120MB SATA to 1TB Hybrid SATA), more RAM (from 4MB to 8MB), and a 32-bit version XP on Windows 10 64 is a piece. Very little money, big changes in performance and OS support, and a month later I'm very happy with the result. The RAM upgrade required removing two (2) x 2GB DIMMs from each machine and replacing them with two (2) x 4GB DIMMs. These 8GB kits cost about $135 from Komputerbay and about $210 from Crucial or G.Skill — about a third less for the Komputerbay version. I ordered and replaced one (1) 8GB kit from Komputerbay. inside for 4GB - and this laptop would not boot at all and gave BIOS error codes. Attempting to boot with one 4MB DIMM at a time found that one DIMM was bad and the other seemed fine. get the version with "+" at the end). While waiting for the second 8GB kit to arrive, I ran a longer run of MEMTEST86+ on a healthy DIMM from the original kit and got no errors for 35 hours / 5 full runs. When the second set of 8GB arrived I found the laptop was not working. Boot normally on one of the new 4GB DIMMs by itself. But when I ran an extended 69 hour test with *good* DIMMs from the first set and *one* DIMM from the second set, I got 8 errors in 10 passes - and there should be *null. * Mistake. So I replaced *another* DIMM from the second set and got *no* errors in 48 hours / 7 runs. So *each* of the two had (2) one (1) failed DIMM. I used to order the 8GB kits so I combined these two (2) failed DIMMs into one 8GB kit and RMA'd it back. In the meantime, I've ordered a *third* 8GB kit and started testing as soon as it arrived. . Luckily on Laptop 2 with two new 4GB DIMMs installed it booted up fine and generated *no* errors on the 95 hour/13 pass extended MEMTEST86+ test, so the third set is fine. I'm very pleased with the results - after all, I saved about $140 on the (net) two (2) 8GB sets I paid for compared to ordering from Crucial. I've learned more than I knew about testing RAM and I seem to have good/reliable RAM upgrades at this point. But in my experience it's pretty arbitrary with Komputerbay - apparently they don't check their DIMMs very carefully before shipping, or they would have found these problems themselves (as I strongly suspect Crucial etc. would have done). And upon examining the chips and carrier boards of each of the Komputerbay DIMMs, they are quite inconsistent - most but not all chips appear to be defective Micron (some logos look ok, some are crossed out), others I can see the logo not read -- and carrier card layout v ri DIMM to DIMM. If you have the time and don't mind the hassle then maybe that's a reasonable compromise - it was it for me. But I suspect you have a better chance of "it just works". "if you go with a more expensive brand like Crucial to begin with if you "just want it to work". My five cents!