Just installed memory it seems my pc is slower?

mad hardcore

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Nov 14, 2011
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my motherbored can hold up to 16 gbs i had 8 in there i juust bought a 4gb stick witch now my pc has 10 gbs of memory i am running windows 7 64 bit i mean it could just be mee but it seems like its running slower its takes longer to refresh pages and freezes
 
RAM especially on Dual (Tri/Quad) Channel MOBO's should be installed in pairs. Chances are the 'slowing' is from errors. You should create a Memtest86+ CD/DVD, use the ISO/zip file and create a bootable CD/DVD and run for at least an hour or two; download -> http://www.memtest.org/ If you start seeing errors then IMO RMA the RAM for a matching set of the 8GB which I assume to be a 2X4GB.
 
Hynix 2GB 2Rx8 PC3-10600U-9-10B0
CAS 9 -????
PNY Optima 4 GB PC3-10666 MD4096SD3-1333
DDR3-1333 CAS 9-9-9-(24) @ 1.50v

This is an oddball mix. Since I cannot find what I need you'll need to download and run CPU-z and look at the Hynix and PNY JEDEC info; CPU-z -> http://www.cpuid.com/softwares/cpu-z.html

Note the 'SPD' tab for each, save the TXT (About -tab) and Copy/Paste just the JEDEC timings table for each DIMM -- NOT the entire TXT file!!!
softwares-cpuz-05.jpg


JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 Timings @ XXX MHz
JEDEC #2 Timings @ XXX MHz
JEDEC #3 Timings @ XXX MHz
 
Oh what fun, yep you can boot with (1) stick of each. The reason I need the JEDEC info is to see if there's any overlapping CAS and I forgot also post the {Nominal Voltage} for each stick.

IF I can see an overlapping Frequency, CAS Timings, and Voltage the next step is to attempt manually setting the BIOS. My assumption is the 'SPD' information seen by the BIOS is reading two different CAS timings and causing the problems.

Further, IF the PC won't boot with the new 4GB it too might be bad. So in either case you're not wasting your time. Just be careful removing/installing the RAM and be sure to touch the PSU to de-static yourself...