Strange Patriot RAM Problem

[Coreone]

I originally bought one 2x1gb set of Patriot Extreme Performance RAM (5-5-5-12 2T PC2-6400) which worked flawlessly in my old system. When I built my new system, I bought another set of the same RAM to make 4gb. I know it's the same RAM because I used the link in my newegg.com order history to make sure. Now since building the new system, I get BSODs citing nvlddmkm when I play games such as WoW or AoC. After ruling out the obvious I decided to look into a memory problem.

My memory passes MemTest no matter how many passes I perform. However, today I checked my memory in CPU-Z and this is what I found:

One set of memory has part number: PDC22G6400ELK and recommends 2.0v
While the other one shows: 6400 EL Series and recommends 1.9v

Could this be causing compatibility issues? If so, does anybody know which set I should return to make sure I get a set that will play nice?

My System:
Intel E8400 @ 3.0ghz
ASUS P5N-D nForce 750i SLi
Zotac 8800gt 512mb
4gb (4x1gb) Patriot Extreme Performance RAM
Windows Vista 64 bit

 

[auscanzukus]

memtest isn't be-all-end-all. Unfortunately, most everyone thinks so. You need other stability tests to stress the cpu, ram, gpu, hdd & a combo of them. Prime 95, Sandra, 3dmark, pcmark, etc.

Yes, I'd up the vdimm to 2.0v.

 

[Coreone]

Turns out that the BSOD was not memory related after all. I've pretty much been able to conclude that the problem is a bad PCI-E slot. I've been running test after test as well as gaming (for 4+ hours... horray free time!) with my video card in the other PCI-E slot and I have yet to encounter an error where as before I would get an error after about 20 minutes.

But I did run Prime95 and 3dmark06 prior to my first post. Both ran without complication.

 

[dissipe]

Before buying any RAM, there are TWO variables that is incumbent upon YOU, the buyer to check out b-e-f-o-r-e purchasing, to wit: Does the Timing match & does the Voltage match. I am running a mid-Neolithic iMac 21.5" with 4GB DDR3 1333mHz PC3 10600 204 pin SO-DIMM ram which I immediately bumped up to 20GB (16 GB plus 4GB). For some reason, Ram manufactures are putting out DDR3 1333MHz with timing of 9+9+9+22 (CL9) @ 1.3 or less volts. YOU CAN'T DO THAT---it will cause ERRORS. I also hate it when, proportedly manufactures of DDR3 1333mhz PC3 10600 include 240 pin and not 204 pin or with Error Correction & Registery when it the 2011 specs SPECIFICALLY state NON ECC!!! Non Buffered, Non Registered.

as of 01NOV2018, Patriot is selling 16GB kits for under $86.00 (see above stats) whereas Crucial wants $115.00 and RAMJET wants a staggering $134.95 for their dinky 16GB ram. All manufacturers make defective products (Mercedes, anyone?) and I've heard people badmouth Kingston, Crucial, OTW, Corsair & Patriot. I have dropped, jostled and otherwise abused my Patriot Ram as seated in my COMPAQ 6910P LUG-ABLE laptop (with the finest KEYBOARD ever created for mere mortals) for the past five years and I've never had a problem with the two sticks. That's why I jumped on the Patriot 16GB kit and will be inserting them in tomorrow (wish me luck). Read the reviews, keep the receipts, get promises backed in writing and then...go for it!!!