Solved dual channel issues

Kingston Hyperx 4gb pc2-8500 ddr2 dimm m...
October 9, 2011 at 05:49:29
Specs: Windows 7 Pro service pack 1, AMD Athlon 64 X2 4600+/4 gigs
updating a computer from my son, I check the specs on the box for the Bio-star TA770 A2+ motherboard and it said it could take ddr2 ram memory of 533,667,800 and 1066 and hold up to 8 gigs. So I bought 4 2 gig sticks of Kingston hyper x memory KHX8500D2T1K2/4G ( 2 Sets of these) PC2-8500 CL5 -Pin Dimm and I install all of then into the 4 slots and the computer turned on but did not boot up. So I started to do some trouble shooting, check each stick in all the slots one at a time. The memory worked in slots 1 and 3 but not in slots 2 and 4. So I tried memory in both slots 1 and 3 at the same time everything worked good, but not in slots 2 and 4, so I tried memory in slots 1,3 and 4 and the system booted up and ran for a little bit then dumped. With memory in slots 1,2 and 3 it did not. The chip-set is ATI-770 for north, south ATI-SB600 LPCIO ITE-IT8718, bios is phoenix technologies version 6.00 PG, CPU is AMD Athlon 64 X2 4600+ Socket AM2 (940)

See More: dual channel issues

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✔ Best Answer
October 11, 2011 at 11:59:27
"Guess is the motherboard is bad."

I agree with that - it appears slot 2 and possibly slot 4 are bad, assuming you had the ram modules seated properly.

Whether they were bad BEFORE you started fiddling with the ram is another matter. It's extremely unlikely there was anything wrong with them when the mboard was new.

Did you do what you were supposed to do and unplug the computer or otherwise disconnect the AC power AT ALL TIMES when you were fiddling with plugging in and unplugging the ram ?
If NO, at any time, you may have damaged the ram slot circuits for both slot 2 and 4.
You could also have damaged one or more module(s).
Did you try ALL the modules in slot 1 and 3 ?

When you use the Bio-star TA770 A2+ or Bio-star TA770 A2+ SE model to look up ram for your model on the Kingston site, they DO NOT list ANY 1066mhz modules.

For both models, they list
KVR533D2N4/1G 1GB 533MHz DDR2 Non-ECC CL4 DIMM
KVR533D2N4/2G 2GB 533MHz DDR2 Non-ECC CL4 DIMM
KVR533D2N4K2/2G 2GB 533MHz DDR2 Non-ECC CL4 DIMM (Kit of 2)
KVR533D2N4K2/4G 4GB 533MHz DDR2 Non-ECC CL4 DIMM (Kit of 2)
KVR667D2N5/1G 1GB 667MHz DDR2 Non-ECC CL5 DIMM
KVR667D2N5/2G 2GB 667MHz DDR2 Non-ECC CL5 DIMM
KVR667D2N5K2/2G 2GB 667MHz DDR2 Non-ECC CL5 DIMM (Kit of 2)
KVR667D2N5K2/4G 4GB 667MHz DDR2 Non-ECC CL5 DIMM (Kit of 2)
KVR800D2N6/1G 1GB 800MHz DDR2 Non-ECC CL6 DIMM
KVR800D2N6/2G 2GB 800MHz DDR2 Non-ECC CL6 DIMM
KVR800D2N6K2/2G 2GB 800MHz DDR2 Non-ECC CL6 DIMM (Kit of 2)
KVR800D2N6K2/4G 4GB 800MHz DDR2 Non-ECC CL6 DIMM (Kit of 2)

However I've seen previously that Kingston commonly does that when the mboard does support using 1066mhz modules.

Kingston lists max 8gb for TA770 A2+, max 16gb for TA770 A2+ SE .

For TA770 A2+ SE they say...
"A BIOS update from Biostar may be required to support DDR2-1066 memory on this motherboard.
DDR2-1066 is supported by AM2+ CPUs only."

(Your Athlon 64 X2 4600+ CPU is an AM2 CPU
http://www.cpu-world.com/CPUs/K8/AM... )
.....

We have gotten a lot of reports of certain 1066mhz modules not working properly on certain mboards.
You should always use your mboard model to look up which 1066mhz modules work in your model for sure (are listed for your model), or consult the (tested) Memory module list for the model on the mboard maker's web site, , or find some independent confirmation the modules will work properly in your mboard BEFORE you buy them.
I found nothing on the Kingston web site that confirms your modules will work properly in your model !
.....

Examine the surface of your mboard.
There is a Version (Ver. or V) number on it somewhere, printed on the mboard itself in obvious larger characters. It may be beside the model, or elsewhere on the mboard.
What is it ?

On the Biostar global web site...

TA770 A2+ Ver. 5.x (support page)
http://206.108.48.60/app/en/mb/intr...

Memory support list. NO 1066mhz modules listed.

As kuwese said, the specs say max 16gb ram but the Manual says 8gb.

"•Support Dual Channel DDR2 533/667/800/1066 MHz
•Max. Supports up to 16GB Memory
•?It is recommended to use those Validated DDR2-1066 modules suggested by AMD
The highlighted link for that no longer works, but I found two similar ones on the AMD site.

{PDF] DDR2 Unbuffered DIMMs Evaluated with AMD Phenom
http://support.amd.com/us/Documents...

(It does list Kingston KVR modules, which probably use the standard DDR2 voltage.)

[PDF] DDR2 Unbuffered DIMMs Evaluated with AMD Phenom II
http://support.amd.com/us/Documents...

(Samsung modules only.)

The Manual states to run the modules in dual channel mode, a matched pair (same size, identical) modules must be in slots 1 and 2 or 3 and 4.
If slots 2 and 4 aren't working properly, you can't run any modules in dual channel mode.
....

TA770 A2+ SE Ver. 6.x (support page)
http://206.108.48.60/app/en/mb/intr...

Memory support list. Some 1066mhz modules ARE listed
........

Crucial DOES list 1066mhz modules .

Crucial® Memory Advisor results for the Biostar TA770 A2+ Motherboard.

http://www.crucial.com/store/listpa...

Memory Type: DDR2 PC2-8500, DDR2 PC2-6400, DDR2 PC2-5300, DDR2 (non-ECC)
Maximum Memory: 8GB
Slots: 4

Crucial® Memory Advisor results for the Biostar TA770 A2+ SE Motherboard
http://www.crucial.com/store/listpa...

Memory Type: DDR2 PC2-8500, DDR2 PC2-6400, DDR2 PC2-5300, DDR2 (non-ECC)
Maximum Memory: 16GB
Slots: 4
..............

"...the HyperX is factory overclocked RAM which has to be run at 2.2v. Standard RAM that conforms to the JEDEC memory standard is supposed to run at 1.8v."

Most bioses adhere to JEDEC standards regarding the ram. When you use ram that doesn't use the standard voltage, the bios usually accomodates to that fine, and in your case it would run all the ram at 2.2v if that voltage quote is correct.

However, sometimes the bios makes mistakes regarding the settings for the ram whem the ram doesn't adhere to the standard JEDEC standards like the ram you bought.
Check the ram voltage setting in the bios - it should be 2.2v, or whatever the voltage is for the module, which is probably printed on a label on the module.
If it's different in the bios, if the voltage is too high or too low (outside of the acceptable voltage range for the modules), you must change the voltage in the bios to the voltage the module are specfied to use. E.g. if it's set to 1.8v in the bios, the HyperX modules probably won't work properly.

However, I suspect the voltage IS set to 2.2 or close to that - if it were set to 1.8 it's likely none of the modules would work in any slot.

Also make sure the timing numbers in the bios for the ram are the same as printed on the label on the modules, or higher is ok. If any of the timing numbers in the bios are lower than the timing numbers at each position for the modules, you must change the timing numbers in the bios so that all the numbers are the same as, or higher than, the timing numbers specified for the modules, otherwise the ram will not work properly.

In your case all the modules are the same.
When you have a mix of modules that have different timing numbers specified for them, the bios is supposed to use the highest number at each position of all the modules installed.
It's NOT a good idea to install a mix of modules different voltages are specfied for - the bios will run all of them at the lowest voltage - the modules that were specified to use a higher voltage will probably not work properly.




#1
October 9, 2011 at 06:18:46
Which version?
http://www.biostar.com.tw/app/en/se...
They both support up to 16gb of memory but in the board manual they wrote only 8gb.

KHX8500D2T1K2/4G
http://www.ec.kingston.com/ecom/con...
U bought factory overclocked RAM, ddr2 800 or 667 1.8v still is better choice.

How to trigger dual channel?
http://imageshack.us/photo/my-image...

You know the real meaning of peace only if you have been through the war.


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#2
October 9, 2011 at 13:24:05
Guess is the motherboard is bad.

1/3 of highway deaths are caused by drunks. The rest are by people who can't drive any better than a drunk.


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#3
October 9, 2011 at 19:29:51
Sounds like the board to me too.

You have to be a little bit crazy to keep you from going insane.


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Related Solutions

#4
October 10, 2011 at 05:50:34
Thanks I think so too, but I will try a few more things before I give up on the board. I am going to school for computer support specialist, so I can ask my instructor too. Thanks.

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#5
October 10, 2011 at 05:52:57
Thanks for your reply, I think it is too, but I will try a few more things to see if I can get the other 2 slots to work. I am going to school yo become a computer support specialist, so I can ask my instructor too.

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#6
October 11, 2011 at 07:24:22
"I bought 4 2 gig sticks of Kingston hyper x memory KHX8500D2T1K2/4G"

Poor choice. For starters, your older model CPU does NOT support DDR2-1066, so it will automatically underclock to DDR2-800 speed. Also, as kuwese pointed out, the HyperX is factory overclocked RAM which has to be run at 2.2v. Standard RAM that conforms to the JEDEC memory standard is supposed to run at 1.8v. You should have gotten standard DDR2-800.

How much did you pay for this RAM? I found it for about $65 for 4GB (2 x 2GB) meaning you paid $130 (or thereabouts)? You could have gotten a modern motherboard & 8GB DDR3 memory for less, then upgraded the CPU in the future.


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#7
October 11, 2011 at 11:59:27
✔ Best Answer
"Guess is the motherboard is bad."

I agree with that - it appears slot 2 and possibly slot 4 are bad, assuming you had the ram modules seated properly.

Whether they were bad BEFORE you started fiddling with the ram is another matter. It's extremely unlikely there was anything wrong with them when the mboard was new.

Did you do what you were supposed to do and unplug the computer or otherwise disconnect the AC power AT ALL TIMES when you were fiddling with plugging in and unplugging the ram ?
If NO, at any time, you may have damaged the ram slot circuits for both slot 2 and 4.
You could also have damaged one or more module(s).
Did you try ALL the modules in slot 1 and 3 ?

When you use the Bio-star TA770 A2+ or Bio-star TA770 A2+ SE model to look up ram for your model on the Kingston site, they DO NOT list ANY 1066mhz modules.

For both models, they list
KVR533D2N4/1G 1GB 533MHz DDR2 Non-ECC CL4 DIMM
KVR533D2N4/2G 2GB 533MHz DDR2 Non-ECC CL4 DIMM
KVR533D2N4K2/2G 2GB 533MHz DDR2 Non-ECC CL4 DIMM (Kit of 2)
KVR533D2N4K2/4G 4GB 533MHz DDR2 Non-ECC CL4 DIMM (Kit of 2)
KVR667D2N5/1G 1GB 667MHz DDR2 Non-ECC CL5 DIMM
KVR667D2N5/2G 2GB 667MHz DDR2 Non-ECC CL5 DIMM
KVR667D2N5K2/2G 2GB 667MHz DDR2 Non-ECC CL5 DIMM (Kit of 2)
KVR667D2N5K2/4G 4GB 667MHz DDR2 Non-ECC CL5 DIMM (Kit of 2)
KVR800D2N6/1G 1GB 800MHz DDR2 Non-ECC CL6 DIMM
KVR800D2N6/2G 2GB 800MHz DDR2 Non-ECC CL6 DIMM
KVR800D2N6K2/2G 2GB 800MHz DDR2 Non-ECC CL6 DIMM (Kit of 2)
KVR800D2N6K2/4G 4GB 800MHz DDR2 Non-ECC CL6 DIMM (Kit of 2)

However I've seen previously that Kingston commonly does that when the mboard does support using 1066mhz modules.

Kingston lists max 8gb for TA770 A2+, max 16gb for TA770 A2+ SE .

For TA770 A2+ SE they say...
"A BIOS update from Biostar may be required to support DDR2-1066 memory on this motherboard.
DDR2-1066 is supported by AM2+ CPUs only."

(Your Athlon 64 X2 4600+ CPU is an AM2 CPU
http://www.cpu-world.com/CPUs/K8/AM... )
.....

We have gotten a lot of reports of certain 1066mhz modules not working properly on certain mboards.
You should always use your mboard model to look up which 1066mhz modules work in your model for sure (are listed for your model), or consult the (tested) Memory module list for the model on the mboard maker's web site, , or find some independent confirmation the modules will work properly in your mboard BEFORE you buy them.
I found nothing on the Kingston web site that confirms your modules will work properly in your model !
.....

Examine the surface of your mboard.
There is a Version (Ver. or V) number on it somewhere, printed on the mboard itself in obvious larger characters. It may be beside the model, or elsewhere on the mboard.
What is it ?

On the Biostar global web site...

TA770 A2+ Ver. 5.x (support page)
http://206.108.48.60/app/en/mb/intr...

Memory support list. NO 1066mhz modules listed.

As kuwese said, the specs say max 16gb ram but the Manual says 8gb.

"•Support Dual Channel DDR2 533/667/800/1066 MHz
•Max. Supports up to 16GB Memory
•?It is recommended to use those Validated DDR2-1066 modules suggested by AMD
The highlighted link for that no longer works, but I found two similar ones on the AMD site.

{PDF] DDR2 Unbuffered DIMMs Evaluated with AMD Phenom
http://support.amd.com/us/Documents...

(It does list Kingston KVR modules, which probably use the standard DDR2 voltage.)

[PDF] DDR2 Unbuffered DIMMs Evaluated with AMD Phenom II
http://support.amd.com/us/Documents...

(Samsung modules only.)

The Manual states to run the modules in dual channel mode, a matched pair (same size, identical) modules must be in slots 1 and 2 or 3 and 4.
If slots 2 and 4 aren't working properly, you can't run any modules in dual channel mode.
....

TA770 A2+ SE Ver. 6.x (support page)
http://206.108.48.60/app/en/mb/intr...

Memory support list. Some 1066mhz modules ARE listed
........

Crucial DOES list 1066mhz modules .

Crucial® Memory Advisor results for the Biostar TA770 A2+ Motherboard.

http://www.crucial.com/store/listpa...

Memory Type: DDR2 PC2-8500, DDR2 PC2-6400, DDR2 PC2-5300, DDR2 (non-ECC)
Maximum Memory: 8GB
Slots: 4

Crucial® Memory Advisor results for the Biostar TA770 A2+ SE Motherboard
http://www.crucial.com/store/listpa...

Memory Type: DDR2 PC2-8500, DDR2 PC2-6400, DDR2 PC2-5300, DDR2 (non-ECC)
Maximum Memory: 16GB
Slots: 4
..............

"...the HyperX is factory overclocked RAM which has to be run at 2.2v. Standard RAM that conforms to the JEDEC memory standard is supposed to run at 1.8v."

Most bioses adhere to JEDEC standards regarding the ram. When you use ram that doesn't use the standard voltage, the bios usually accomodates to that fine, and in your case it would run all the ram at 2.2v if that voltage quote is correct.

However, sometimes the bios makes mistakes regarding the settings for the ram whem the ram doesn't adhere to the standard JEDEC standards like the ram you bought.
Check the ram voltage setting in the bios - it should be 2.2v, or whatever the voltage is for the module, which is probably printed on a label on the module.
If it's different in the bios, if the voltage is too high or too low (outside of the acceptable voltage range for the modules), you must change the voltage in the bios to the voltage the module are specfied to use. E.g. if it's set to 1.8v in the bios, the HyperX modules probably won't work properly.

However, I suspect the voltage IS set to 2.2 or close to that - if it were set to 1.8 it's likely none of the modules would work in any slot.

Also make sure the timing numbers in the bios for the ram are the same as printed on the label on the modules, or higher is ok. If any of the timing numbers in the bios are lower than the timing numbers at each position for the modules, you must change the timing numbers in the bios so that all the numbers are the same as, or higher than, the timing numbers specified for the modules, otherwise the ram will not work properly.

In your case all the modules are the same.
When you have a mix of modules that have different timing numbers specified for them, the bios is supposed to use the highest number at each position of all the modules installed.
It's NOT a good idea to install a mix of modules different voltages are specfied for - the bios will run all of them at the lowest voltage - the modules that were specified to use a higher voltage will probably not work properly.



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#8
October 11, 2011 at 16:12:38
Thanks for your reply and you are right I did pay $120+ for both sets, I will be updating my findings with the ram issue. Thanks again for your input.

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#9
October 11, 2011 at 16:15:29
Thanks for your reply I will be updating my ram issue with the dual channel. Hopefully all of you will have an answer after you all read it.

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