Trouble Overclocking Athlon II X4 620 Propus 2.6GHz

[bigdane545]

Hello Everyone,

I am trying to overclock an athlon II X4 620 but my system continues to fail over 212 X 13 with everything else set to auto on an ASUS M4A785TD-V EVO mobo. I have tried increasing cpu voltage, decreasing cpu voltage, decreasing ht link but it continually fails. I cannot increase the multiplier as it is locked at 13. Any help, advice, or suggestions would be greatly appreciated. I am not trying to go all out, I just want to increase the cpu to 3.1 or 3.2.

Thanks

 

[bigdane545]

I have the same motherboard and CPU, I also have DDR3 1600 (not the same ram). I have my CPU stable at 3.25, could go higher idles @ 18C with Cool & Quiet on.

1) Anyways, drop your ram multiplier to as low it will go probably 400 or 533, can't remember exactly since I do not have it in front of me. Right now you do not care what it is running at you are trying to get your CPU stable.

1a) Make sure you set the correct voltage for your RAM. I believe it is the bottom you need to manually set that or you might run into problems (Memory Overvoltage). I did not do this the first few times and had problems myself. I had to set mine to 1.6

2) Put your CPU voltage at 1.4 or 1.42 (mine is at 1.4). I would not go higher then 1.5 (if you are going to go that high you need to monitor your temps, you need to do that anyways)

3) Put your multiplier at 13 and FSB at 250

4) Leave everything else on [Auto] for now.

5) You might want to turn off cool and quiet also.

6) After you get your CPU stable then you can start upping your RAM multiplier.

Hope this might help some.

Ah, that helped a lot! I dropped the RAM to 400mhz, bumped up the FSB to 250 and CPU set to 1.4 . . this worked for about 20 seconds and then blue screened. Dropped to 245 and it boots into windows. Ran prime 95 and it failed after 25 seconds. Dropped the FSB to 240 and it ran prime 95 for about 15 minutes before dropping cores. Dropped down to 235, cpu 1.4, RAM 400, RAM voltage 1.6 and it ran prime 95 for over an hour with no issues, about 59C on stock HS/fan. I'm pretty happy with this result. . . I tried 250 with a higher CPU and RAM voltage but it would not stay stable. .

Either way, thanks for the suggestions! I hoped this board would be a little more cooperative but o'well.

Thanks again to everyone

 

[Deathviper]

Do you have a link to the RAM you got, maybe newegg or something? I could take a look and give you a couple more suggestions.

I will tell you not to expect DDR3 1600 with this CPU, but you should be able to get somewhere around 1300 which you will not notice the difference unless you are doing benchmarks.

I like the board so far for the money (you have good combo CPU & motherboard).

 

[bigdane545]

Do you have a link to the RAM you got, maybe newegg or something? I could take a look and give you a couple more suggestions.

I will tell you not to expect DDR3 1600 with this CPU, but you should be able to get somewhere around 1300 which you will not notice the difference unless you are doing benchmarks.

I like the board so far for the money (you have good combo CPU & motherboard).

Here's the link

A-DATA 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600

http://www.newegg.com/Product/Product.aspx?Item=N82E16820211409&nm_mc=TEMC-RMA-Approvel&cm_mmc=TEMC-RMA-Approvel-_-Content-_-text-_-

 

[Deathviper]

Give me a sec..............

 

[Deathviper]

Ok, good.

DDR3 1600 (PC3 12800)
Cas Latency 9
Timing 9-9-9-24
Voltage 1.65V -1.85V



So,

1) CPU: If you are wanting a higher CPU overclock get this where you are happy first before you move to your RAM, (You also need to run prime overnight and make sure your CPU is stable) if you are happy with your current CPU overclock then move to 2):

a) The other thing if you are wanting to get a higher CPU overclock is your max temp for that CPU is somewhere around 71 or 73. I would not go near that high though. Somewhere around 60 like you are is fine, since you are not trying to go to high. You could bump your vcore up a little 1.425-1.45 as long as your temps don't go higher) but it sounds like you might have it high enough for you. And a couple or even 100mhz is not big jump. I have a aftermarket cooler Mugen 2 so it keeps mine a little cooler but your temps at 59 are still fine.




2) RAM:

The above is from the spec tab of your RAM from newegg. I noticed you wrote you had your RAM @ 1.6, yours needs b/t 1.65 - 1.85v to get stable probably.

a) Set the voltage to 1.85 right now. (if you aren't comfortable with that 1.75) but your specs say 1.85 is fine. You can always touch them and see if they are getting to hot to the touch. Or back this down some once you find a stable point.
b) If I were you, I would up my RAM multiplier to 533 (that would get you somewhere around DDR3 1300.
c) I would also set my timings manually to Timing 9-9-9-24

on the RAM you probably need to do a,b,c at the same time.





Anyways, give that a whirl and let me know.

 

[bigdane545]

Same result. .

I tried to bump the CPU back up to 250 with a voltage increase to 1.45 (and RAM changes below) > wouldn't boot.

Set the RAM timings manually, set to 533, voltage to 1.86, won't boot.
Dropped to 1.75 > won't boot - dropped back down to 400 > timings still manual > voltage 1.85 > boots fine

Not sure why this board doesn't like my RAM . . the other board I tried was an ASUS as well and I was able to get the CPU to 3.25 without adjusting anything else . .

I'd like to get the CPU up to 3.25 but I just don't think its going to happen on this board w/this memory

 

[Deathviper]

And you did set the RAM Timing 9-9-9-24?

You might try 10-10-10-30 and 1.85 volts?

I am at work right now, I can look at my settings and let you know what I have. It will probably be an hour and half or so.

 

[Deathviper]

PM me your email address and i can send you a couple pics of my bios settings.

 

[Mudit Sathe]

 

[OvrClkr]

Mud,

Mind going into the X4 and I5 thread i made in the CPU forum? I'd love to see some benchmarks of that setup.

Where did you purchase your 540?

 

[Rjlx]

bigdane,

I have a somewhat similar set-up, excepting the RAM:

Athlon II X4 620, Asus M4A78-EM mobo, 4G Corsair XMS2 1066 RAM, Arctic Cooler Freezer Pro 7.2, OCZ 500W ModXStream ps.

Here are my current overclock stats according to CPU-Z: 3460 MHz Core Speed, x 13 multiplier, 266 MHz Bus Speed, 2130 MHz HT Link, 1.360 Core Voltage, 1066 MHz RAM. That works out to be an approximate 33% overclock on the CPU.

This is the highest I could run my bus and still be stable with a 12 hour Prime95 Stress Test. My highest CPU temp at 100% is 51 C.

It took me quite some time to come up with the perfect combo. Besides the poor BIOS options (unable to adjust FSB:RAM ratio, no ACC option, ect.), my biggest roadblock seems to have been my HT Link speed. Just a guess, but I think you might also be experiencing issues with your HT Link

I am running my RAM at the recommended timings from the manufacturer 5-6-6-18 with with no increase in RAM voltage. You might do well to follow the manufacturers recommended timings for your DDR3 RAM and just bump the voltage up a tad if go a little over the 1600. Remember that when you increase the FSB, you are also increasing a number other variables, including your RAM frequency and HT Link.

I'm no expert on the topic, but here is what worked for me in my BIOS.

CPU/HT Reference Clock: 266
Processor Frequency Multiplier: x 13.0
CPU/NB Frequency Multiplier: x 8.0 (stock setting is x 10.0)
CPU Overvolt: +100mv
VDDNB Overvolt: +33mv
HT Link Speed: 1.6 GHz (stock is 2.0)
Memory Clock Speed: 400 MHz (stock is 533)
Memory Overvolt: 2.10000

I know this post is a little late, but maybe this will still be of use to you or someone else; however, every system (even ones with the same hardware) are different.

 

[sinvelikogmajstora]

I think that athlon x4 620 can support max 1333 mhz ram. It is not power hungru in my experience.
I am running it @3.12ghz ,240mhz fsb x13 on gigabyte ga-ma770-ud3 motherboard
800 mhz ram set@960mhz 7-7-7-25 timings
disabled cool'n'quiet
core voltage -75mv!!! all other voltages @default
ht link 1.8
cpu/nb frequency x9
max temp on full load 46c even when using cpu fan smart control.
24h stable!!
I think your problem is ram. Maybe it's not very good for oc...

 

[Deadstick50]

I'm running my X4 on the Asus M4A785TD-V EVO, its sitting at 250MHz fsb, 2000 on the HT, I locked out the PCI-e so its not OC'd and also locked my cheap old vid card out. I had to manually set my Vcore also, this board on auto wants to go right up to 1.5v and it really makes things to hot. I also dumbed down my ram by one level so its now running at the stock 1333MHZ, but at the 8-8-8-22 timings. I think the original poster problem is the ram in general isnt properly supported by the X4. Everything I've seen looks like the 1333 MHz ram is the fastest you can use with this cpu. I have tryed going up to 255MHz on the fsb, but Prime95 crashed out and i got a reboot that didnt happen at 250 which looks like the max for what ive got here. I'm running plain Corsair DDR3 1333, not any of the high speed/gaming memory and I'm still on the stock HS/fan so 3.25GHz Im getting is likely all i will get. Considering I wasnt really interested in OCing the X4 anyway, I've got more than I ever would have thought out of it!