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Ram speed or amount on Acer Travelmate 5742
Hi there.
I have peculiar error condition. Here is the run down.
Client brought a laptop to me. Acer Travelmate 5742. Windows 7 pro 32bit. Had the ram upgraded in the USA, 2x4 gb1 Rx8 Pc3L 12800s 11-12-b3.
I was under the impression the the OS was only seeing 3.4 because of the 32 bit OS. I attempted to load 8.1 64 bit to correct.
That is where it all went pearShape. the laptop would not boot. I tried all i knew, i deduced it was the ram as I got several BSOD pointing to ram. slotted in some 2x 2GB 2R X 8 PC3- 8500- 7 10-F1. Installation went without a hitch. Thinking the 1600 ram was too fast for the 1086 mobo I started looking for 1068 ram but could not find. Did some research and understood that I could get 1333 ram and the mobo would just slow it down. No way, will not boot. well, it loads the bios, then starts windows for about 2 seconds, then shutdown or DSOD
How is this possible. I have been in the pc business for 18 years, never saw this. I am asking, how was it possible for the laptop to boot and operate with the upgraded ram but wont boot to install new os. What magic was performed. I went through all the scenarios in my head, back in the DOS days.
load himem.sys
load ems driver
load some type of memory manager on post
run script after or on post.
bios insyde version 3.5 has little or no settings i can get to. besides boot order and type.
is there anyone here that is clever enough to assist me.
thank you