I hate patriot and their pdc22g6400llk ram!

[JRKIO]

I just found out that the Patriot 2GB DDR2 ram i bought 3 weeks ago sucks for overclocking! pdc22g6400llk is the model number. After doing some google research I found out that the chips on current ram sticks are different chips than those of reviewed sticks on various hardware sites. Now I can't get this memory stable past 840, even with 2.3 volts and 5-5-5-15 timings!! I'm stuck with this crap ram!! My e6750 has so much potential and this ram has ruined my overclock experience!! I hate patriot.

 

[JustaGeek]

Don't worry about overclocking your RAM. If you increase the FSB frequency, your memory bandwidth will increase, even if you keep your RAM speed at 800MHz.

I have a highly "overclockable" RAM, but keep it at 800MHz with ~2.0V.

Keep the memory voltage as low as possible, RAM speed at 800MHz, OC your CPU as high as you can go, and if your RAM is able to accomodate the throughput associated with the high FSB frequency, you will be satisfied.

Read this about the real life differences of different RAM speed:
http://forums.anandtech.com/me...yword1=ddr2+8000+speed

 

[Pain999]

I got the same Patriot RAM but it runs fine for my Abit IP-35-E at 860 MHz 4-4-4-12 2T 2.1v

You using 1T or 2T?

 

[nyker96]

Originally posted by: JRKIO
I just found out that the Patriot 2GB DDR2 ram i bought 3 weeks ago sucks for overclocking! pdc22g6400llk is the model number. After doing some google research I found out that the chips on current ram sticks are different chips than those of reviewed sticks on various hardware sites. Now I can't get this memory stable past 840, even with 2.3 volts and 5-5-5-15 timings!! I'm stuck with this crap ram!! My e6750 has so much potential and this ram has ruined my overclock experience!! I hate patriot.

I always thought Patriot are decent overclockers. My SuperTalent 667 can do about 850 5-5-5-15 and 2.1v. must be a bad batch.

 

[taltamir]

I got patriot pdc22g6400elk (not llk like the op) ram running at 4-4-4-12, 21 trc at 1.8v (they can do 22 trc at 2.0v but my mobo does go there)

I couldn't overclock my FSB AT ALL.. not even a few percent... on two different motherboards (instant freeze on memtest with nothing even moving)... so I just went ahead and ordered a 6400+ black edition... 3.2ghz and is the fastest amd cpu, with phenom outperforming it by a little only on quad core enabled application.

I build my mom a computer with the same mobo and ram but with a X2 6000+ windsor processor instead of the x2 3800+ windsor; I just plopped it in and it detected the ram at 841 fsb 4-4-4-12 21 trc at 1.8v voltage and it is perfectly stable (15 hour memtest and monthes of usage since)...

So it makes sense that despite having the exact same ram model number in both computers, we have different actual hardware.
That or my OC incapability is due to my CPU... but it is supposed to be a good overclocker... (F2 revision windsor at 2.0ghz...)
I beleive it set her ram to a higher FSB by default because her multiplier is 15... while mine is 10... and the uneven multiplier results in weird ram settings (which are normally UNDER what it can perform, not over)

That being said... I think it should be illegal for a manufacturer to change out hardware like that while retaining the same name. They are clearly misleading customers and downright stealing from them... Do you have a link to an article about this? I will certainly no longer be a loyal patriot customer if they really are engaging in such behavior

 

[JRKIO]

http://www.custompc.co.uk/labs...ot-pdc22-g6400llk.html

That's the article stating the difference in chips.

Anyway right now its running memtest at 820 4-4-4-12, it just failed test 5 at 840 same timings. I don't know if I'll sell this memory on E-bay or be stuck with a slow comp. I have a DFI "Blood Iron" p35 board that I'm happy with but I have to dismount my large heatsink to remove all the ram .

edit: it just failed test 5 again at the 820 speed . I really don't know if I'm using 1T or 2T, everything but the voltage and timings are set to auto in the bios.

 

[taltamir]

Thanks for the link.

 

[Zap]

Originally posted by: Pain999
I got the same Patriot RAM but it runs fine for my Abit IP-35-E at 860 MHz 4-4-4-12 2T 2.1v

Did you have any problems with that combo? My Patriot RAM wouldn't POST with the Abit board. It'll only work with it if I boot it up with some other RAM and then manually set timings.

It is pretty "normal" for memory manufacturers to change the ICs of their RAM. Very likely quite a few do it. I know Corsair does it too.

Here's something about the Patriot RAM, and many other "enthusiast/overclocking" RAM...

Have you noticed that they are "rated" for 2.2v at 800MHz? Doesn't that strike you as odd? Notice how people (like nyker96) can buy some cheap-azz RAM and overclock the heck out of it? What's the difference? Well, the cheap RAM is rated at 1.8v, even the 800MHz stuff. Your (and my) Patriot RAM is basically cheap RAM "rated" at CAS 4 with higher voltage. Nothing you can't do on your own by buying cheaper RAM and raising the voltage yourself.

Again, many RAM manufacturers are "guilty" of this.

 

[swtethan]

Im actually running TWO different kits one LLK and one ELK, the only difference is one is 5-5-5-12 2.0v and the other 4-4-4-12 2.1v i run them both on 4-4-4-12 2.1 fine though I dont quite know how they overclock since I havent even reached beyond 400fsb

 

[JRKIO]

I just ran memtest at 4-4-4-12 800 speed, stock, and got a failed test 7. Maybe it's just one stick of my 4 sticks screwing with me. I'll need to remove some memory and test it tonight when i have more time.

 

[SerpentRoyal]

Originally posted by: Zap

Originally posted by: Pain999
I got the same Patriot RAM but it runs fine for my Abit IP-35-E at 860 MHz 4-4-4-12 2T 2.1v

Did you have any problems with that combo? My Patriot RAM wouldn't POST with the Abit board. It'll only work with it if I boot it up with some other RAM and then manually set timings.

It is pretty "normal" for memory manufacturers to change the ICs of their RAM. Very likely quite a few do it. I know Corsair does it too.

Here's something about the Patriot RAM, and many other "enthusiast/overclocking" RAM...

Have you noticed that they are "rated" for 2.2v at 800MHz? Doesn't that strike you as odd? Notice how people (like nyker96) can buy some cheap-azz RAM and overclock the heck out of it? What's the difference? Well, the cheap RAM is rated at 1.8v, even the 800MHz stuff. Your (and my) Patriot RAM is basically cheap RAM "rated" at CAS 4 with higher voltage. Nothing you can't do on your own by buying cheaper RAM and raising the voltage yourself.

Again, many RAM manufacturers are "guilty" of this.

Amen Brother! OCZ stuffs are the worst. Most of these POS sticks are 1.8V DDR2 667 relabeled as overclocking 2.1-2.2V DDR2 800 RAMs. Reputable vendors like Crucial or Kingston under-spec their RAMs. Kingston's N5 1.8V DDR2 800 is rated at 5-5-5-18 but the RAM will run fine at 4-4-4-12-2T with many P35 boards. Bumping Vdimm to 2.1 should net at least 450MHz/4-4-4-12-2T or 500MHz/5-5-5-15-2T.

Remember that quality JEDEC 1.8V DDR2 800 RAMs will cost a little more $ but they should run well with four sticks without the need to raise VTT, NB, and SB voltages. Kingston N5s rarely come with rebate. The quality is in the ICs and PC board. No flashy heat spreaders to hook un-informed buyers.

http://www.newegg.com/Product/...x?Item=N82E16820134117

http://www.newegg.com/Product/...x?Item=N82E16820134116

 

[SerpentRoyal]

Originally posted by: JRKIO
http://www.custompc.co.uk/labs...ot-pdc22-g6400llk.html

That's the article stating the difference in chips.

Anyway right now its running memtest at 820 4-4-4-12, it just failed test 5 at 840 same timings. I don't know if I'll sell this memory on E-bay or be stuck with a slow comp. I have a DFI "Blood Iron" p35 board that I'm happy with but I have to dismount my large heatsink to remove all the ram .

edit: it just failed test 5 again at the 820 speed . I really don't know if I'm using 1T or 2T, everything but the voltage and timings are set to auto in the bios.

Bump up the NB and SB by one or two notches.

 

[kenrippy]

i have 4x1gb of the LLK stuff in an ip35 pro (a build for a friend). cpuz shows

JEDEC#3 = 400, 5,5,5,16,21 @ 1.8v
EPP#1 = 400, 4,4,4,12,21 2T @ 2.2v

i haven't tried pushing them over 400 because it's with a q6600 (380x9)

like was stated earlier, you don't need to push these past 400 anyway. performance is actual cpu clock speed, not ram speed. 2T/1T doesn't matter either. leave em at 2T

 

[Zap]

Originally posted by: swtethan
Im actually running TWO different kits one LLK and one ELK, the only difference is one is 5-5-5-12 2.0v and the other 4-4-4-12 2.1v i run them both on 4-4-4-12 2.1 fine though I dont quite know how they overclock since I havent even reached beyond 400fsb

Well, one of them is already "overclocked" since you are running it faster than rated latencies.

 

[Pain999]

Originally posted by: JRKIO
I just ran memtest at 4-4-4-12 800 speed, stock, and got a failed test 7. Maybe it's just one stick of my 4 sticks screwing with me. I'll need to remove some memory and test it tonight when i have more time.

Running 4 sticks is not the same as running 2. You can't expect to maintain the same 4-4-4-12 timings on 4 sticks, especially if your at 1T command rate. I think you should shoot for something more like 5-5-5-15 2T for 4 sticks. You can run cpu-z to find out the command rate, and I am sure the DFI forums can help you figure out how to change it.

 

[imported_SLIM]

Originally posted by: Pain999

Originally posted by: JRKIO
I just ran memtest at 4-4-4-12 800 speed, stock, and got a failed test 7. Maybe it's just one stick of my 4 sticks screwing with me. I'll need to remove some memory and test it tonight when i have more time.

Running 4 sticks is not the same as running 2. You can't expect to maintain the same 4-4-4-12 timings on 4 sticks, especially if your at 1T command rate. I think you should shoot for something more like 5-5-5-15 2T for 4 sticks. You can run cpu-z to find out the command rate, and I am sure the DFI forums can help you figure out how to change it.

I would also recommend a look at the DFI forums. The "AUTO" settings on DFI boards are pretty aggressive already and you may have to look a lit bit harder at the plethora of memory options DFI gives. DFI boards/BIOSes are meant to be meticuloulsy combed over for extracting every last bit of performance. Simply setting everything to auto does not always work. You might also try looking at the various bios releases to see if your memory does better with one over another (the most recent bios is not always the best for every memory out there).

 

[spinejam]

run 'em @ lower speed but tighter timings and you're better off!

see below:


http://www.legionhardware.com/document.php?id=628

http://www.legionhardware.com/document.php?id=630

 

[JRKIO]

eh they ran ok at 800mhz 4-4-4 12 for 9 hours in memtest. I've been looking at 2x2gb ram kits but I think I'll just stick with this memory for a little while.