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Programs crashing - ram issue?

post #1 of 3
Thread Starter 
Since I overclocked up to 3.5GHz I have noticed that games would crash more but I just put up with it. Today I installed an extra 4GB of ram so I have a pair of Corsair CMV4GX3M1A1333C9's, one stick is newer than the other but they both have the same spec and part number. Since installing the extra stick and tweaking my bios settings so that they were perfect I have had many more crashes, even prime95 crashed and I got a bsod while playing GTAIV that said DRIVER_IRQL_NOT_LESS_OR_EQUAL and also mentioned dxgmms1.sys, I read in another thread on here and someone said it is a ram issue. I think it may be to do with the timings or possibly voltage. I understand that this ram is not the best for overclocking but I used to run a single stick flawlessly when my pc was running at 3.4GHz.

See sig rig for details.

EDIT: Just in case you need it... http://valid.canardpc.com/show_oc.php?id=1955428
Edited by Scott1541 - 8/16/11 at 10:27am
     
CPUMotherboardGraphicsRAM
i5-4278U @ 2.6GHz Apple Logic Board Intel Iris 5100 8GB 1600MHz DDR3L 
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Apple British Keyboard 60W Magsafe 2 Apple Aluminium Unibody Apple Trackpad 
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post #2 of 3
if it fails prime95 the oc is unstable

the x4 640 doesnt have an unlocked multiplier (keep it at stock 15)
you need to oc via fsb, which raises the ram speeds also, drop the ram to the lowest setting (1066) then with the oc'd fsb (233) its should be 1244

keep the ht at 2000 (+/- 100)

if it still fails put the ram timings back to 9-9-9-24


how are the temps?
cpu has a max of 71c
http://products.amd.com/en-us/Deskto...False&f12=True
Edited by ffejrxx - 8/16/11 at 11:42am
post #3 of 3
Thread Starter 
Quote:
Originally Posted by ffejrxx View Post
if it fails prime95 the oc is unstable

the x4 640 doesnt have an unlocked multiplier (keep it at stock 15)
you need to oc via fsb, which raises the ram speeds also, drop the ram to the lowest setting (1066) then with the oc'd fsb (233) its should be 1244

keep the ht at 2000 (+/- 100)

if it still fails put the ram timings back to 9-9-9-24


how are the temps?
cpu has a max of 71c
http://products.amd.com/en-us/Deskto...False&f12=True
Oh right thanks for the info. I am running with the multiplier at 14 and 13 at the minute so I will try putting it back at 15, I didn't know you have to use only the fsb.

My max temp is about 50c so that isn't a problem.

I have also tried each ram stick individually and both seem fine, so I will give what you said a go.
     
CPUMotherboardGraphicsRAM
i5-4278U @ 2.6GHz Apple Logic Board Intel Iris 5100 8GB 1600MHz DDR3L 
Hard DriveOSOSMonitor
128GB SSD Mac OS X 10.11 El Capitan Windows 10 13" IPS @ 2560 x 1600 
KeyboardPowerCaseMouse
Apple British Keyboard 60W Magsafe 2 Apple Aluminium Unibody Apple Trackpad 
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CPUMotherboardGraphicsRAM
i5-4278U @ 2.6GHz Apple Logic Board Intel Iris 5100 8GB 1600MHz DDR3L 
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128GB SSD Mac OS X 10.11 El Capitan Windows 10 13" IPS @ 2560 x 1600 
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Apple British Keyboard 60W Magsafe 2 Apple Aluminium Unibody Apple Trackpad 
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