Fail to boot (short-short-short-long beep code) after M92p BIOS Update

Question

Hi, 
I recently updated my BIOS to the latest version using the System Update tool from Lenovo. For a while everything seemed to be working alright, as the BIOS was dowloaded and the computer rebooted. After rebooting the first time i was presented with the BIOS utility, and noticed that the update was progressing. 
After 20 or so seconds the computer rebooted again. This is where my problems began. The computer immediately started beeping this short-short-short-long melody from the speakers. I thought this was normal, so I left the computer on for quite a while. 
However, the beeping never stopped. Now the beeping resumed the instant i plug the power back in. I have yet been able to actually getting any sort of information on-screen telling me what's wrong. 
I've tried following the "Recovering from a POST/BIOS update failure" on page 267 of the Hardware Maintenance Manual, but no luck with that so far. No matter where I place the jumper, the beeping code is the same short-short-short-long melody (yeah, it sounds like a disney tune or something).
Any bright ideas? The machine type is a M92p 2992-B3G
I'd hate to have to send it in for repairs, and Lenovo's Norwegian support line doesn't open until Monday, and there seems to be no way to call their 800-number in the states from here
Oh, and would this be covered by my warranty if repairs / motherboard replacement is the only way out?
UPDATE #1:
I found this in the manual;
3 short beeps and then 1 long beep DRAM memory
error
Perform the following actions in order.
1. Make sure the memory module(s) are properly seated
in the connector(s).
2. Replace the memory module(s).
3. Replace the system board.
This is pretty much Lenovo's way of saying "You're screwed", isn't it?
UPDATE #2: 
I've now tried pretty much everything;
The solution as proposed on page 267 in the Hardware Maintenance Manual
Unplugging all cables and harddrives before booting
Removing my PCIe video card and PCI Wireless NIC before booting
Removing all memory modules, and trying 1 and 1 module
Moved a memory module from another machine that I know is working
No luck so far. 
Ideas would be welcome at this point

Answer 1

I'm glad to hear it's just a simple memory error, however the original problem in this post is a bit more than just a memory problem.
This became a problem after a BIOS update, so somewhere along the way one of Lenovo's developer screwed up badly, and it's been bugging me ever since. There's absolutely no way for me to use any PCI-e card with my M92p. 
I've tried 6 different cards, 3-4 different memory module combinaties, with our without harddrives plugged in, and every thinkable combination of these.
No luck. Therefore, I simply conclude that Lenovo are dicks, and we all know what dicks enjoy doing; **bleep**ing people over.
I've given up on the issue, and I'll never buy a Lenovo again after this.