Win 7 / 8 gig Mem / Bios tweak

[looper]

I created a partition on an extra Seagate HD I had, and installed Win 7 Ultimate 64 bit there. So, it is a 'dual-boot' HD with Win XP-Pro as well. Win 7 w/ the 4 gig of existing memory working fine.

Per the Asus MB manual, I then went into the BIOS, and enabled 'memory re-mapping', a feature you need to activate if running a 64 bit OS with more than 4 gig of memory. I then installed 2 more sticks (another 4 gig) of the identical memory(G Skill- 'F2-8800CL5D (DDR2-1100) CL5-5-5-15. (FAST), for a total of 8 gig. Turned on Comp....NADA.... no boot...moved sticks to different slots,disabled that bios feature, and also tried it w/ just 3 sticks(6 gig)...NADA...

Ideas? I'm now back to using my original HD w/ Win XP Pro 32 bit w/ 4 gig of Ram.

 

[mechBgon]

Your sig indicates your rig's overclocked. Back it down to stock speed, back off the memory timings, and see if it POSTs with all the RAM installed now. Filling up the memory slots can require cutting the memory some slack sometimes.

Also, if you haven't already done so, make sure your memory is getting its full rated voltage if it's not spec'ed for stock voltage.

 

[looper]

Since I did that OC of the cpu in January, at boot-up screen, says memory at 'PC2-6700'...

For fast online "FPS' gaming w/ my son, would we be better off with the cpu at stock 3.0ghz speed and 8 gig of memory on Win 7 64 bit, rather than OC'd to 3.6ghz with Win XP 'seeing' about 3 gig of memory?

 

[mechBgon]

Originally posted by: looper
Since I did that OC of the cpu in January, at boot-up screen, says memory at 'PC2-6700'...

For fast online "FPS' gaming w/ my son, would we be better off with the cpu at stock 3.0ghz speed and 8 gig of memory on Win 7 64 bit, rather than OC'd to 3.6ghz with Win XP 'seeing' about 3 gig of memory?

You could probably get most of your OC back, just try stock speed as a fact-finding step and see where you're at first. Also ensure that your old modules and new modules are paired up, in case they changed spec to higher-density chips.

 

[looper]

They are exactly the same sticks...