DDR3 RAM

[navychop]

I have a W7 64 bit machine with, I think, Crucial memory. I'm having some problems which might be attributable to bad RAM. So I'm considering buying Kingston memory as a replacement. The motherboard is an ASUS P6T. I've long since stopped keeping up with the changes in DIMMs.

ASUS lists Qualified vendors, per the below:

KINGSTON
KHX1600C9D3K3/12GXMP) DDR3 1600 12288MB(Kit of 3)
DS (1066-7-7-7-20) 1.65v

KINGSTON KHX1600C9D3K2/4G DDR3 1600 4096MB(Kit of 2)
DS (1333-9-9-9-24) 1.7~1.9v


But I find the below at Amazon:
Kingston6GB 1600MHz DDR3 Non-ECC CL9 (9-9-9-27) DIMM (Kit of 3) Tall HS XMP


And at NewEgg:
Kingston HyperX 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model KHX1600C9D3K3/6GX

* DDR3 1600 (PC3 12800)
* Timing 9-9-9-27
* Cas Latency 9
* Voltage: 1.65V
* Multi-channel Kit: Triple Channel Kit
* Model #: KHX1600C9D3K3/6GX


I don't understand the timing numbers. I have no idea if "27" is better or worse than "24." And 7 vs 9. Granted, the size of the memory is different.

Would either of these work? What should I look for/avoid?

 

[mogera]

While I don't know what you're using your machine for, you might have better luck (and save a few bucks with dual channel RAM from Kingston. I'm running 8gb of this http://www.newegg.com/Product/Product.aspx?Item=N82E16820134792 on my AMD 965 Phenom HTPC with an ASUS M4A79XTD EVO main board and it runs like a champ. Just my two pesos.

 

[JimK2]

Timing, lower the better

KINGSTON
KHX1600C9D3K3/12GXMP) DDR3 1600 12288MB(Kit of 3)
DS (1066-7-7-7-20) 1.65v

 

[RandallA]

The lower the timing is, the better the performance. Most of those timings are used only when overclocking. For most users, the bios will use the default settings.

Memory Timings Explained

 

[mike123abc]

Knowing what the SPD is programmed for is the real number, unless you want to manually set up your memory times. Also, it depends on your motherboard if it will allow the settings.

I have never found it worth over clocking memory, I just look for SPDs that are programmed for minimum timings at the stock votage.

 

[Kevinw]

What are your problems and have you tested each stick by itself?

 

[navychop]

I don't have a tester, and the two shops I used to use for that purpose are now history. I guess I'll need to dig up a s/w test.

Long running programs such as Adaware, Spybot, Norton 360 scans, etc, eventually freeze. Notice a trend? Also, my iPhone is no longer syncing, and I've lost my Riverdance ring tone. It gives an error msg to the effect that the iPhone disconnected. Not that long ago I replaced my 3G with a 3GS. Other "mated" PCs ask if it's a new phone or to restore from an old. Don't want to answer that, as I'm not sure of the repercussions. Also, backups fail/freeze.

Looks like I'll have to look a little further for faster memory.

 

[RandallA]

Download Memtest and run the diagnostics.

Memtest86+ Bootable CD-ROM ISO - 2.01 Download - EXTREME Overclocking

 

[navychop]

Thank you. Saved me time looking for one. Last one I had was on a 3.5". Err, uhhh, oh well.

I ran it overnight, 13 hours. No problems. So I guess I've got to look on the software side for problems.

 

[StevenD]

Could you possibly have an overheating problem? That could certainly cause a system to lock up during a long process.

 

[navychop]

It likely would have repeated for the memory test also.

Anyway, my box has way oversized fans and vents, so that's not likely the problem.

 

[navychop]

Problem seems to have been fixed. See Front panel USB ports causing problems?

 

[Ramy]

While I don't know what you're using your machine for, you might have better luck (and save a few bucks with dual channel RAM from Kingston. I'm running 8gb of this Newegg.com - Kingston ValueRAM 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) Dual Channel Kit Desktop Memory Model KVR1333D3K2/4GR on my AMD 965 Phenom HTPC with an ASUS M4A79XTD EVO main board and it runs like a champ. Just my two pesos.

A lot of newer machines require triple channel memory now.

 

[Ramy]

Problem seems to have been fixed. See Front panel USB ports causing problems?

Cool.

 

[diogen]

A lot of newer machines require triple channel memory now.

Only the X58 Intel chipset using 1366 pin CPUs.
Was and most likely will remain a niche.

Diogen.

 

[Ramy]

Only the X58 Intel chipset using 1366 pin CPUs.
Was and most likely will remain a niche.

Diogen.

My I7 has it. I use it, but don't know if it is required.

 

[tstolze]

FYI Windows 7 has a memory check program build in. Can be accessed while running, it will reboot the system, or F8 during start up and start it in the boot manager.

 

[navychop]

Hmmm. Have to look in to that.

My P6T w/i7 uses triple channel.

 

[diogen]

My I7 has it. I use it, but don't know if it is required.

Yes, the first i7's (9xx) were of this flavour, positioned as premium product atm.
But mainstream went the 1156-pin CPUs...

Diogen.

 

[Ramy]

Yes, the first i7's (9xx) were of this flavour, positioned as premium product atm.
But mainstream went the 1156-pin CPUs...

Diogen.

That sucks. I have one of the first I7's :rant::rant: