Need to update Bios HP 490T using Pegatron 2A86 (not "Truckee") Motherboard

[CISO1969]

Hello:

I have an HPE 490T ,  Windows 7 Premium, 64 bit system, Intel Core i 7 CPU x980 @3.3Ghz .  All 4 sticks of 4gb RAM are same company, speed and DDR3 , the motherboard is a Micro ATX  Pegatron 2A86

I have an issue where all of a sudden Bios only recognizes 2 slots and 8GB RAm.  I reset the CMOS  and now it recognizes only 2 slots--but two different paired  slots of RAM holding the two other sticks.

MSCONFIG  - bios-advanced shows it is unchecked and set to zero for memory (but a test of checking that box only gives 8 GB RAM as max)

I have reset the sticks, the fact that all 4 work also concerns me.

What I have done

1. I need to update the bios-- all i can find on the HP site are updates for the Pegatron "Truckee" -its almost like they dont admit to using the Pegatron 2A86 in the HPE 490T. Where is this support? How do I update tehbios through HP?

2. I tried to find bios updates through 3rd parties like American Megatrends who made these bios  version 6.09 dated 7/02/2010 but they direct you to a pay site

3. I cannot find a Pegatron site with bios although a rumor has it they are made by Asus?

4. I also ran CPUZ and Sisoft Sandra and they both recognize all 4 sticks in the 4 slots used (2 empty slots not showing) they also give good reads on all 4 stocks and ratings

Ok So I am going nuts .  Updating the Bios was a solution a few mentioned, yet i cannot do so from HP as they dont have the updates. Anyone know where I can find this?

When I reset the CMOS I removed the mother board battery, waited 15 minutes then restarted and let it reset autmatically--should I have hit F10 and done it manually?

I seem to remember the bios having options to change system to 32 or 64 yet cant find that now. Maybe that is the issue its set somewhere for 32?

I doubt it is bent CPU pins or else the RAM and slots would not have been read.

Any help?

Thanks in advance

[lasvegaswireman]

In the theory, the Pegatron 2A86 and IPMTB-TK (Truckee) are the same exact board. IPMTB-TK  should be printed on the motherboard, as depicted below;

And "2A86" will be returned by software identification means. Please try installing IPMTB-TK Motherboard BIOS Update v6.10 from the HP Pavilion Elite HPE-490t CTO Desktop PC Drivers page for your computer.

Also, this motherboard is subject to various failures and was part of a 1 year Limited Warranty Service Enhancement Program (LWSEP) several years ago. Please search the HP Forum for posts concerning the reported issue.

If you have any further questions, please don't hesitate to ask.

Please click the White KUDOS "Thumbs Up" to show your appreciation

[CISO1969]

I know mine is green and doesnt have the IPMTB stampings--pretty sure if it has one its the 2A86 --i can look again. 

Your comment made me think back to when i first got the comp and I had an issue with one stick--we moved it to another slot and all was well.

I wonder if this is same issue. **bleep** if I missed the swap out Id be upset--not like HP told me about it!

Thanks for your help!

CISO

[CISO1969]

http://www.youtube.com/watch?v=-GUea5tJF1Q   this shows the exact motherboard I have. Doesn't say Truckee but apparantly the poster says it is.   Wonder why the model number confusion?

EDIT: Saw where IMTB Truckee is posted on that one. It's in a different spot than the blue board. I'll take a look 🙂  Thanks again

CISO

[CISO1969]

OK updated bios. Now the bios recognizes all 6 slots for RAM, but still only shows I have 2 sticks in same last two slots.

I will play with RAM although the other two sticks were being used when I started this process so I am fairly sure the RAM is ok.

WTH is wrong with this LOL!