DDR3 16GB Ram problem

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Hip_Monkey

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Sep 26, 2015
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Hi everybody,

So I have a HP pavilion p6 which came with two sticks of DDR3 RAM, one of 2 GBs and one of 4GBs, both PC3-12800 (DDR3-1600), giving 2x800 MHZ as confirmed by CPU-Z.

I wanted to upgrade the RAM and went to the HP site to check my system, here is the info:

http://bit.ly/1Gaq3ra
http://bit.ly/1jntaqK

HP clearly states that this system can upgrade the Ram to 16 GB max for a 64 bit system, which I have. I bought a pack of 2x8GB online from Kingston, HyperX Beast 1600MHZ with latency 9-9-9-27: http://bit.ly/1KBO5iR

After placing the new RAM, my PC now has 16GB RAM, but it runs at 2x667 MHZ. CPU-Z states max bandwith is PC3-10700, so it's running at 1333MHZ, not 1600 MHZ as before.

I've googled some info on this and people say I have to change the settings in the BIOS to get the normal speed again, but the motherboard I have (H-Joshua-H61-uATX) doesn't show any settings to improve the situation.

If I put the original RAM back, the PC runs at 1600 (or 2x800MHZ) again. How is this possible?

Any help/info to resolve the situation would be kindly appreciated.


 
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H

Hip_Monkey

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Sep 26, 2015
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4,510
Tradesman1 thanks for your reply. But finding a BIOS update for the H61-Joshua uatx from HP is like finding water in the desert. At Foxconn the site never heard of it, and on the HP site they only want to install all kinds of rubbish software that ends up saying everything is okay and now shows ads on my desktop asking if I want to buy a new computer from HP or saying 'Your computer is almost out of warranty!! Buy new one!'

Aside from that, the HP site says that if you need assistance, you mail them or call them, but of course they never give you their phone number. It's like a great secret they don't want you to know. Even on their forums guarded by 'volunteers' they have a thread with a few cases of people wanting to update their BIOS fo this mobo, and it ends up as being 'Solved!' because the volunteers said a bios upgrade wasn't needed (in that case for a new graphics card).

Look, I know that updating the BIOS can be a problem for some people and that it may corrupt the mobo. Maybe that's why HP doesn't want their customers to know where to get the BIOS update, cause they don't want a Million people within warranty claiming a new PC.

Maybe I need to buy a new motherboard that allows updating the BIOS, but is it still worthwhile to buy a new mobo for DDR3 memory?


 
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H

Hip_Monkey

Reputable
Sep 26, 2015
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4,510
Hi Tradesman1,

Okay, here's the deal:

I called HP tech and they told me the BIOS update is indeed on their website, but it is listed only under specific Windows versions, which seems a bit weird to me.
As I installed Windows 10, their tool was looking in that section. It seems there was indeed an update from this year (2015) under Windows 8. Their AMI firmware update utility now installed everything for me, so the BIOS is updated however with no effect to the RAM.

I think the problem has to do with the CAS latency, being 9-9-9-27 on the new RAM, while the original RAM has latency 11-11-11-28. So I think the Mobo is compensating for the higher latency by lowering the MHZ to 1333.

Now, what I can do (I think) is returning the RAM and trying a set of 2 RAM units @1600 MHZ but with latency 11, OR I could just keep these and be satisfied with a shorter latency but also a lower MHZ. The worst that could happen if I change them out is that the Mobo still won't recognize the RAM and I'll have a PC working at a lower MHZ AND longer latency.

I've seen tests from people saying 1333MHZ and 1600 MHZ isn't that much of a difference. I'm also wondering if there is a really big difference between 1333MHZ and 1600 MHZ while the higher one has 11 cycles and the lower one only has 9 cycles CAS.

Any suggestions?

PS: O yeah, the guy at HP suggested it could also be that if I installed Windows 8 again, the problem could be fixed, that maybe the PC now misses a driver or something. Have you guys ever heard of something like that? That the BIOS lowers the RAM MHZ because of an upgraded OS???

Anyway, thanks for helping out! :)


 
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